10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2013

Or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     

Commission file number 001-35817

CANCER GENETICS, INC.

(Exact name of registrant as specified in its charter)

Delaware	04-3462475
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

201 Route 17 North 2^nd Floor

Rutherford, NJ 07070

(201) 528-9200

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	¨	Accelerated filer	¨
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	Smaller reporting company	x

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  ¨    No  x

As of November 1, 2013, there were 9,265,384 shares of common stock, par value $0.0001 of Cancer Genetics, Inc. outstanding.

CANCER GENETICS, INC. AND SUBSIDIARIES

TABLE OF CONTENTS

PART I – FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)
	Consolidated Balance Sheets	1
	Consolidated Statements of Operations	2
	Consolidated Statements of Changes in Stockholders’ Equity (Deficit)	3
	Consolidated Statements of Cash Flows	4
	Notes to Unaudited Consolidated Financial Statements	5
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	33
Item 4.	Controls and Procedures	33
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings	34
Item 1A.	Risk Factors	34
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds from Sales of Registered Securities	35
Item 3.	Defaults Upon Senior Securities	35
Item 4.	Mine Safety Disclosures	35
Item 5.	Other Information	35
Item 6.	Exhibits	35
SIGNATURE		36
INDEX TO EXHIBITS		37

PART I — FINANCIAL INFORMATION

Item 1. Financial Statements (Unaudited)

Cancer Genetics, Inc. and Subsidiary

Consolidated Balance Sheets

	September 30, 2013 (Unaudited)			December 31, 2012
ASSETS
CURRENT ASSETS
Cash and cash equivalents	$	9,878,176		$	819,906
Accounts receivable, net of allowance for doubtful accounts of $36,000		1,616,134			850,545
Other current assets		713,127			489,278
Total current assets		12,207,437			2,159,729
FIXED ASSETS, net of accumulated depreciation		810,387			964,923
OTHER ASSETS
Security deposits		1,564			1,564
Restricted cash		300,000			250,000
Loan guarantee and financing fees, net of accumulated amortization of 2013 $207,000; 2012 $929,498		621,000			1,907,502
Patents		366,113			324,764
Deferred offering costs		—			3,343,289
		1,288,677			5,827,119
Total Assets	$	14,306,501		$	8,951,771
LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)
CURRENT LIABILITIES
Accounts payable and accrued expenses	$	1,807,081		$	4,578,761
Obligations under capital leases, current portion		11,886			17,158
Deferred revenue		215,023			468,010
Notes payable, current portion		43,622			3,836,567
Lines of credit		6,000,000			2,871,200
Total current liabilities		8,077,612			11,771,696
Obligations under capital leases		—			7,490
Deferred rent payable		169,166			164,298
Notes payable, long-term		—			2,440,683
Lines of credit		—			6,000,000
Warrant liability		1,178,000			12,549,000
Total liabilities		9,424,778			32,933,167
STOCKHOLDERS’ EQUITY (DEFICIT)
Series A Preferred Stock, authorized 588,000 shares $0.0001 par value (converted to common stock on April 10, 2013-Note 4), 587,691 shares issued and outstanding in 2012		—			59
Series B Preferred Stock, authorized 2,000,000 shares $0.0001 par value (converted to common stock on April 10, 2013-Note 4), 1,821,600 shares issued and outstanding in 2012		—			182
Common stock, authorized 100,000,000 and 24,000,000 shares, respectively, $0.0001 par value, 5,965,340 and 1,349,936 shares issued and outstanding as of September 30, 2013 and December 31, 2012, respectively		597			135
Additional paid-in capital		63,681,317			24,970,255
Treasury stock		—			(17,442	)
Accumulated deficit		(58,800,191	)		(48,934,585	)
Total Stockholders’ Equity (Deficit)		4,881,723			(23,981,396	)
Total Liabilities and Stockholders’ Equity (Deficit)	$	14,306,501		$	8,951,771

See Notes to Unaudited Consolidated Financial Statements.

1

Cancer Genetics, Inc. and Subsidiary

Consolidated Statements of Operations

(Unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Revenue	$	1,705,146		$	1,242,604		$	4,755,462		$	3,225,831
Cost of revenues		1,211,384			971,557			3,560,678			2,880,242
Gross profit		493,762			271,047			1,194,784			345,589
Operating expenses:
Research and development		433,525			501,431			1,384,122			1,551,672
Sales and marketing		442,665			334,147			1,274,620			1,049,996
General and administrative		1,297,801			1,145,649			4,259,175			3,475,301
Total operating expenses		2,173,991			1,981,227			6,917,917			6,076,969
Loss from operations		(1,680,229	)		(1,710,180	)		(5,723,133	)		(5,731,380	)
Other (expense) income:
Interest expense		(356,442	)		(1,312,232	)		(2,039,750	)		(3,260,010	)
Interest income		3,295			—			4,649			—
Debt conversion costs		—			—			(6,849,830	)		—
Change in fair value of warrant liability		(1,033,000	)		3,334,000			4,096,000			6,370,000
Total other (expense) income		(1,386,147	)		2,021,768			(4,788,931	)		3,109,990
(Loss) income before income taxes		(3,066,376	)		311,588			(10,512,064	)		(2,621,390	)
Income tax provision (benefit)		—			—			(663,900	)		—
Net (loss) income	$	(3,066,376	)	$	311,588		$	(9,848,164	)	$	(2,621,390	)
Basic net (loss) income per share	$	(0.61	)	$	0.23		$	(2.84	)	$	(1.96	)
Diluted net loss per share	$	(0.61	)	$	(2.23	)	$	(4.02	)	$	(6.66	)
Basic Weighted Average Shares Outstanding		5,055,591			1,346,124			3,463,730			1,340,530
Diluted Weighted Average Shares Outstanding		5,055,591			1,355,678			3,468,627			1,350,084

See Notes to Unaudited Consolidated Financial Statements.

2

Consolidated Statements of Changes in Stockholders’ Equity (Deficit)

For the nine months ended September 30, 2013 (Unaudited)

	Preferred Stock Series A						Preferred Stock Series B						Common Stock				Additional Paid-in Capital		Treasury Stock			Accumulated Deficit			Total
	Shares			Amount			Shares			Amount			Shares		Amount
Balance, December 31, 2012		587,691		$	59			1,821,600		$	182			1,349,936	$	135	$	24,970,255	$	(17,442	)	$	(48,934,585	)	$	(23,981,396	)
Stock based compensation—employees		—			—			—			—			—		—		310,982		—			—			310,982
Stock based compensation—non-employees		—			—			—			—			—		—		76,220		—			—			76,220
Conversion of preferred stock into common stock		(587,691	)		(59	)		(1,821,600	)		(182	)		1,287,325		129		112		—			—			—
Conversion of debt into common stock		—			—			—			—			963,430		96		12,595,970		—			—			12,596,066
Issuance of common stock in IPO, net of offering costs		—			—			—			—			690,000		69		3,742,574		—			—			3,742,643
Issuance of common stock in Secondary Offering, net of offering costs		—			—			—			—			1,605,000		161		14,230,211		—			—			14,230,372
Issuance of common stock pursuant to license agreement		—			—			—			—			2,000		—		20,000		—			—			20,000
Reclassification of derivative warrants																—		7,170,000		—			—			7,170,000
Exercise of warrants		—			—			—			—			67,649		7		564,993		—			—			565,000
Retirement of treasury stock		—			—			—			—			—		—		—		17,442			(17,442	)		—
Net loss		—			—			—			—			—		—		—		—			(9,848,164	)		(9,848,164	)
Balance, September 30, 2013		—		$	—			—		$	—			5,965,340	$	597	$	63,681,317	$	—		$	(58,800,191	)	$	4,881,723

See Notes to Unaudited Consolidated Financial Statements.

3

Cancer Genetics, Inc. and Subsidiary

Consolidated Statements of Cash Flows

(Unaudited)

	Nine Months Ended September 30,
	2013			2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss)	$	(9,848,164	)	$	(2,621,390	)
Adjustments to reconcile net (loss) to net cash used in operating activities:
Depreciation		227,376			266,489
Amortization		11,422			11,422
Provision for bad debts		—			(528	)
Equity-based consulting and compensation expenses		310,982			766,167
Equity-based research and development expenses		96,220			—
Change in fair value of warrant liability		(4,096,000	)		(6,370,000	)
Extension of warrants		—			144,000
Amortization of loan guarantee and financing fees		884,460			952,544
Accretion of discount on debt		584,692			1,559,009
Deferred rent		4,868			6,364
Deferred initial public offering costs expensed		617,706			—
Write-off of debt conversion costs		6,849,830			—
Change in working capital components:
Accounts receivable		(765,589	)		(149,870	)
Other current assets		(223,849	)		(182,803	)
Accounts payable, accrued expenses and deferred revenue		(1,255,166	)		(144,773	)
Net cash (used in) operating activities		(6,601,212	)		(5,763,369	)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of fixed assets		(72,840	)		(33,540	)
Patent costs		(52,771	)		(184,456	)
Increase in restricted cash		(50,000	)		(50,000	)
Net cash (used in) investing activities		(175,611	)		(267,996	)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments on capital lease obligations		(12,762	)		(32,005	)
Proceeds from initial public offering of common stock, net of offering costs		4,984,025			(1,190,609	)
Proceeds from secondary public offering of common stock, net of offering costs		14,230,372			—
Proceeds from warrant exercises		192,000			619,980
Proceeds from borrowings on notes payable		—			5,120,000
Principal payments on notes payable		(3,558,542	)		—
Net cash provided by financing activities		15,835,093			4,517,366
Net increase (decrease) in cash and cash equivalents		9,058,270			(1,513,999	)
CASH AND CASH EQUIVALENTS
Beginning		819,906			2,417,256
Ending	$	9,878,176		$	903,257
SUPPLEMENTAL CASH FLOW DISCLOSURE
Cash paid for interest	$	570,601		$	761,458
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Warrants issued for financing fees	$	47,000		$	727,000
Warrants issued with debt		—			2,048,000
Warrants issued for debt guarantee fee		—			755,000
Accrued offering costs		—			1,384,123
Offering costs discounted		733,250			—
Accrued expenses reclassified as derivative warrant liability		221,000			148,000
Accrued expenses recorded as financing fees		—			184,000
Retirement of treasury stock		17,442			—
Conversion of notes payable, lines of credit and accrued interest to common stock		9,364,300			—
Conversion of preferred stock to common stock		241			—
Reclassification of derivative warrants		7,170,000			—
Cashless exercise of derivative warrants		373,000			—
Reclassification of deferred offering costs to additional paid-in capital		1,992,333			—

See Notes to Unaudited Consolidated Financial Statements.

4

Notes to Unaudited Consolidated Financial Statements

Note 1. Organization, Description of Business, Reverse Stock Splits and Initial Public Offering

We were incorporated in the State of Delaware on April 8, 1999 and have offices and a laboratory located in Rutherford, New Jersey. Our wholly owned subsidiary, Cancer Genetics Italia SRL (“CGI Italia”), manages the manufacturing and manufactures DNA probes. CGI Italia had approximately $349,000 and $329,000 in total assets at September 30, 2013 and December 31, 2012, respectively, and approximately $55,000 and $24,000 in total revenue for the three months ended September 30, 2013 and 2012, and approximately $147,000 and $60,000 in total revenue for the nine months ended September 30, 2013 and 2012 respectively.

We are a diagnostics company focused on developing and commercializing proprietary genomic tests and services to improve the diagnosis, prognosis and response to treatment of cancer (theranosis). Our proprietary tests target cancers where prognosis information is critical and where predicting treatment outcomes using currently available techniques is limited. These cancers include hematological, urogenital and HPV-associated cancers. We have commercially launched MatBA^® -CLL, -SLL, DLBCL and UroGenRA kidney as lab developed tests in the United States, and seek to provide our tests and services to oncologists and pathologists at hospitals, cancer centers and physician offices, as well as to biopharmaceutical companies and clinical research organizations for their clinical trials.

Reverse Stock Splits

On February 8, 2013, we filed a charter amendment with the Secretary of State for the State of Delaware and effected a 1-for-2 reverse stock split of our common stock. On March 1, 2013, we filed another charter amendment with the Secretary of State for the State of Delaware and effected a 1-for-2.5 reverse stock split of our common stock. All shares and per share information referenced throughout the consolidated financial statements have been retroactively adjusted to reflect both reverse stock splits.

Public Offerings

On April 10, 2013, we sold 690,000 shares of common stock at a public offering price of $10.00 per share and completed our initial public offering (“IPO”) with gross proceeds of $6.9 million (net proceeds of $5 million). Upon the closing of the IPO, all shares of our then-outstanding Series A and Series B convertible preferred stock automatically converted into an aggregate of 1,287,325 shares of common stock. Concurrent with the IPO, certain derivative warrants with a fair value of $7.2 million were reclassified into equity due to the lapsing of anti-dilution provisions in the warrants. Also concurrent with the IPO, $9.6 million of debt converted into 963,430 shares of common stock. All references to our Series A convertible preferred stock in this quarterly report on Form 10-Q refer collectively to the Series A and Series A-1 convertible preferred shares.

On August 19, 2013, we sold 1,500,000 shares of common stock at a public offering price of $10.00 per share resulting in gross proceeds of $15.0 million (net proceeds of $13.3 million). We used $3.5 million of the proceeds to repay certain indebtedness which was due on August 15, 2013 (see Note 4 for further discussion of the Company’s debt). On September 5, 2013, we sold 105,000 additional common shares pursuant to partial exercise of the underwriter’s over-allotment option which resulted in gross proceeds of $1.1 million (net proceeds of $947,000). All references to the sales of common stock mentioned in this paragraph are referred to as the “Secondary Offering” in this quarterly report on Form 10-Q.

Subsequent Event

On October 28, 2013, we sold 3,286,700 shares of common stock, (including the underwriter’s overallotment of 428,700 shares), at a public offering price of $14.00 per share resulting in gross proceeds of $46.0 million. Net proceeds of $42.2 million were available to us from the public offering and were determined as follows:

Gross proceeds (including over-allotment)	$	46,013,800
Underwriting discounts, expenses and commissions		(3,446,792	)
Estimated other offering costs		(315,850	)
Pro forma net proceeds	$	42,251,158

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The following table summarizes certain actual balance sheet data and pro forma balance sheet data to reflect the activities related to our recent public offering noted above, as of September 30, 2013:

	September 30, 2013			Pro forma September 30, 2013
Cash and cash equivalents	$	9,878,176		$	52,129,334
Loan guarantee and financing fees		621,000			621,000
Accounts payable and accrued expenses		1,807,081			1,807,081
Notes payable, current portion		43,622			43,622
Line of credit		6,000,000			6,000,000
Warrant liability		1,178,000			1,178,000
Common stock		597			925
Additional paid-in capital		63,681,317			105,932,147
Accumulated deficit	$	(58,800,191	)	$	(58,800,191	)

Note 2. Significant Accounting Policies

Basis of presentation: The accompanying unaudited financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions for interim reporting as they are prescribed by the Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary to make the financial statements not misleading have been included. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the audited consolidated financial statements as of and for the year ended December 31, 2012 that are included in our prospectus filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933, on October 23, 2013 (Prospectus). The consolidated balance sheet as of December 31, 2012, included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP. Interim financial results are not necessarily indicative of the results that may be expected for future interim periods or for the year ending December 31, 2013.

Liquidity/Going Concern: Our primary sources of liquidity have been funds generated from debt financing, the sale of shares of common and preferred stock, grants in lieu of federal income tax credits, National Institute of Health grants and sales of state NOL carryforwards.

We believe our cash resources, prior to our latest offering of common stock, which was consummated on October 28, 2013, were sufficient to satisfy our liquidity requirements at our current level of operations through September 2014 and assuming we are able to secure an extension of the $6.0 million of indebtedness due April 1, 2014 through March 2015. We have commenced negotiations with Wells Fargo and with Mr. Pappajohn, who serves as a guarantor for such outstanding indebtedness, to further extend the maturity date. However, there can be no assurances that we will be successful. If we are not successful in obtaining an extension, we expect that we would use a portion of the net proceeds received from our latest offering of common stock, which was consummated on October 28, 2013, to repay that debt. Including the funds raised through the offering of common stock which was consummated on October 28, 2013, we believe that our current cash resources are sufficient to satisfy our liquidity requirements for at least two years even if we are unable to secure an extension of the Wells Fargo debt. Our forecast of the period of time through which our financial resources will be adequate to support our operations and the costs to support our general and administrative, sales and marketing and research and development activities are forward-looking statements and involve risks and uncertainties.

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. The Company has suffered recurring losses from operations and had negative working capital at September 30, 2013. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty. Refer to the section entitled “Capital Resources and Expenditure Requirements” in Item 2. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Form 10-Q of which these financial statements are a part.

Principles of consolidation: The accompanying consolidated financial statements include the accounts of Cancer Genetics, Inc. and our wholly owned subsidiary, Cancer Genetics Italia S.r.L. All significant intercompany account balances and transactions have been eliminated in consolidation.

Use of estimates and assumptions: The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of

6

assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates made by management include, among others, realization of amounts billed, realization of long-lived assets, realization of intangible assets, accruals for registration payments and assumptions used to value stock options and warrants. Actual results could differ from those estimates.

Risks and uncertainties: We operate in an industry that is subject to intense competition, government regulation and rapid technological change. Our operations are subject to significant risk and uncertainties including financial, operational, technological, regulatory and other risks, including the potential risk of business failure.

Cash and cash equivalents: Highly liquid investments with original maturities of three months or less when purchased are considered to be cash equivalents. Financial instruments which potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents. We maintain cash and cash equivalents with high-credit quality financial institutions. At times, such amounts may exceed insured limits. We have not experienced any losses in such accounts and believe we are not exposed to any significant credit risk on our cash and cash equivalents.

Revenue recognition: Revenue is recognized in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 605, Revenue Recognition, and ASC 954-605 Health Care Entities, Revenue Recognition which requires that four basic criteria must be met before revenue can be recognized: (1) persuasive evidence that an arrangement exists; (2) delivery has occurred and title and the risks and rewards of ownership have been transferred to the customer or services have been rendered; (3) the price is fixed or determinable; and (4) collectability is reasonably assured. In determining whether the price is fixed or determinable, we consider payment limits imposed by insurance carriers and Medicare and the amount of revenue recorded takes into account the historical percentage of revenue we have collected for each type of test for each payor category. Periodically, an adjustment is made to revenue to record differences between our anticipated cash receipts from insurance carriers and Medicare and actual receipts from such payors. For the periods presented, such adjustments were not significant. For direct bill customers (including clinical trials customers), revenue is recorded based upon the contractually agreed upon fee schedule. When assessing collectability, we consider whether we have sufficient payment history to reliably estimate a payor’s individual payment patterns. For new tests where there is no evidence of payment history at the time the tests are completed, we only recognize revenues once reimbursement experience can be established. We then recognize revenue equal to the amount of cash received. Sales of probes are recorded on the shipping date. We do not bill customers for shipping and handling fees and do not collect any sales or other taxes.

Revenues from grants to support product development are recognized when costs and expenses under the terms of the grant have been incurred and payments under the grants become contractually due.

Accounts receivable: Accounts receivable are carried at original invoice amount less an estimate for contractual adjustments and doubtful receivables, the amounts of which are determined by an analysis of individual accounts. Our policy for assessing the collectability of receivables is dependent upon the major payor source of the underlying revenue. For direct bill clients, an assessment of credit worthiness is performed prior to initial engagement and is reassessed periodically. If deemed necessary, an allowance is established on receivables from direct bill clients. For insurance carriers where there is not an established pattern of collection, revenue is not recorded until cash is received. For receivables where insurance carriers have made payments to patients instead of directing payments to the Company, an allowance is established for a portion of such receivables. After reasonable collection efforts are exhausted, amounts deemed to be uncollectible are written off against the allowance for doubtful accounts. Since the Company only recognizes revenue to the extent it expects to collect such amounts, bad debt expense related to receivables from patient service revenue is recorded in general and administrative expense in the consolidated statement of operations. Recoveries of accounts receivable previously written off are recorded when received.

Deferred Offering costs: Deferred offering costs represent legal, accounting and other direct costs related to our effort to raise capital through a stock offering. Future costs related to our offering activities will be deferred until the completion of the offering, at which time they will be reclassified to additional paid-in capital as a reduction of the offering proceeds. In connection with our IPO, $617,706 in deferred offering costs were expensed and approximately $2.5 million in deferred offering costs were reclassified to additional paid-in capital. Additionally, $733,250 in deferred offering costs were reduced due to discounts given by vendors associated with that offering and $120,000 was refunded. In connection with our Secondary Offering, we incurred $1.8 million in offering costs, all of which were reclassified to additional paid-in-capital.

Warrant liability: We have issued certain warrants which contain an exercise price adjustment feature in the event we issue additional equity instruments at a price lower than the exercise price of the warrant. The warrants are described herein as derivative warrants. We account for these derivative warrants as liabilities. These common stock purchase warrants do not trade in an active securities market, and as such, we estimate the fair value of these warrants using the binomial lattice valuation pricing model with the assumptions as follows: The risk-free interest rate for periods within the contractual life of the warrant is based on the U.S. Treasury yield curve. The expected life of the warrants is based upon the contractual life of the warrants. Volatility is estimated based on an average of the historical volatilities of the common stock of four entities with characteristics similar to those of the Company. Prior to our IPO, the measurement date fair value of the underlying common shares was based upon an external valuation of our shares. (See Notes 8 and 9). Subsequent to the IPO and Secondary Offering, we use the closing price of our shares on the OTC Bulletin Board and the NASDAQ Capital Market, respectively.

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We compute the fair value of the warrant liability at each reporting period and the change in the fair value is recorded as non-cash expense or non-cash income. The key component in the value of the warrant liability is our stock price, which is subject to significant fluctuation and is not under our control. The resulting effect on our net income (loss) is therefore subject to significant fluctuation and will continue to be so until the warrants are exercised, amended or expire. Assuming all other fair value inputs remain constant, we will record non-cash expense when the stock price increases and non-cash income when the stock price decreases.

Income taxes: Income taxes are provided for the tax effects of transactions reported in the consolidated financial statements and consist of taxes currently due plus deferred income taxes. Deferred income taxes are recognized for temporary differences between the financial statement and tax bases of assets and liabilities that will result in taxable or deductible amounts in the future. Deferred income taxes are also recognized for net operating loss carryforwards that are available to offset future taxable income and research and development credits. On January 22, 2013, we sold certain state net operating loss carryforwards. The proceeds of $663,900 are included in our income tax benefit for the nine months ended September 30, 2013.

Registration payment arrangements: We account for our obligations under registration payment arrangements in accordance with ASC 825-20, Registration Payment Arrangements. ASC 825-20 requires us to record a liability if we determine a registration payment is probable and if it can reasonably be estimated. As of September 30, 2013 and December 31, 2012, we have an accrued liability of $300,000 and $541,000, respectively, related to registration rights obligations associated with the issuance of Series B preferred stock and certain notes payable.

Stock-based compensation: Stock-based compensation is accounted for in accordance with the provisions of ASC 718, Compensation-Stock Compensation, which requires the measurement and recognition of compensation expense for all stock-based awards made to employees and directors based on estimated fair values on the grant date. We estimate the fair value of stock-based awards on the date of grant using the Black-Scholes option pricing model. The value of the portion of the award that is ultimately expected to vest is recognized as expense over the requisite service periods using the straight-line method. See additional information in Note 7.

All issuances of stock options or other issuances of equity instruments to employees as the consideration for services received by us are accounted for based on the fair value of the equity instrument issued.

We account for stock-based compensation awards to non-employees in accordance with ASC 505-50, Equity Based Payments to Non-Employees. Under ASC 505-50, we determine the fair value of the warrants or stock-based compensation awards granted as either the fair value of the consideration received or the fair value of the equity instruments issued, whichever is more reliably measurable. Stock-based compensation awards issued to non-employees are recorded in expense and additional paid-in capital in stockholders’ deficit over the applicable service periods based on the fair value of the awards or consideration received at the vesting date.

Subsequent events: We have evaluated potential subsequent events through November 13, 2013, which is the date the financial statements were issued.

Earnings (loss) per share: Basic earnings (loss) per share is computed by dividing net income (loss) available to common stockholders by the weighted average number of common shares assumed to be outstanding during the period of computation. Diluted earnings per share is computed similar to basic earnings per share except that the numerator is adjusted for the change in fair value of the warrant liability (only if dilutive) and the denominator is increased to include the number of dilutive potential common shares outstanding during the period using the treasury stock method.

Basic net income (loss) and diluted net loss per share data were computed as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Numerator:
Net income (loss) for basic earnings per share	$	(3,066,376	)	$	311,588		$	(9,848,164	)	$	(2,621,390	)
Less gain in fair value of warrant liability		—			3,334,000			4,096,000			6,370,000
Net (loss) for diluted earnings per share	$	(3,066,376	)	$	(3,022,412	)	$	(13,944,164	)	$	(8,991,390	)
Denominator:
Weighted-average basic common shares outstanding		5,055,591			1,346,124			3,463,730			1,340,530
Assumed conversion of dilutive securities:
Common stock purchase warrants		—			9,554			4,897			9,554
Potentially dilutive common shares		—			9,554			4,897			9,554
Denominator for diluted earnings per share—adjusted weighted-average shares		5,055,591			1,355,678			3,468,627			1,350,084
Basic net income (loss) per share	$	(0.61	)	$	0.23		$	(2.84	)	$	(1.96	)
Diluted net loss per share	$	(0.61	)	$	(2.23	)	$	(4.02	)	$	(6.66	)

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The following table summarizes potentially dilutive adjustments to the weighted average number of common shares which were excluded from the calculation:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Common stock purchase warrants		1,843,582		955,458		1,843,582		955,458
Stock options		506,294		553,580		506,294		553,580
Common shares issuable upon conversion of Series A Preferred Stock		—		352,614		—		352,614
Common shares issuable upon conversion of Series B Preferred Stock		—		364,320		—		364,320
		2,349,876		2,225,972		2,349,876		2,225,972

Note 3. Revenue and Accounts Receivable

Revenue by payor type for the three and nine months ended September 30, 2013 and 2012 is comprised of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Medicare	$	229,723	$	178,291	$	637,838	$	586,896
Direct bill (including clinical trials clients)		1,060,684		473,965		2,798,883		1,158,212
Grants and royalty		100,000		279,973		100,000		474,973
Insurance carrier and all others		314,739		310,375		1,218,741		1,005,750
	$	1,705,146	$	1,242,604	$	4,755,462	$	3,225,831

Accounts receivable by payor type at September 30, 2013 and December 31, 2012 consists of the following:

	September 30, 2013			December 31, 2012
Medicare	$	520,153		$	193,024
Direct bill (including clinical trials clients)		585,034			339,763
Insurance carrier and all others		546,947			353,758
Allowance for doubtful accounts		(36,000	)		(36,000	)
	$	1,616,134		$	850,545

We have historically derived a significant portion of our revenue from a limited number of test ordering sites. Our test ordering sites are largely hospitals, cancer centers, reference laboratories and physician offices, as well as biopharmaceutical companies as part of a clinical trial. Oncologists and pathologists at these sites order the tests on behalf of the needs of their oncology patients or as part of a clinical trial sponsored by a biopharmaceutical company in which the patient is being enrolled. We generally do not have formal, long-term written agreements with such test ordering sites, and, as a result, we may lose these significant test ordering sites at any time.

The top five test ordering sites during the three months ended September 30, 2013 and 2012 accounted for 75% and 61% respectively, of our clinical testing volumes, with 36% and 56% respectively, of the volume coming from community hospitals. During the three months ended September 30, 2013, there were two sites which accounted for more than 10% of our revenue: a clinical trial client accounted for approximately 44% of our revenue, and; a community hospital accounted for approximately 10%. During the three months ended September 30, 2012, there were three sites which each accounted for 10% or more of our clinical revenue: a clinical trial client accounted for approximately 15%; a university teaching center accounting for approximately 12%, and; a community hospital network accounted for approximately 10%.

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The top five test ordering sites during the nine months ended September 30, 2013 and 2012 accounted for 71% and 61%, respectively, of our clinical testing volumes, with 37% and 47%, respectively, of the volume coming from community hospitals. During the nine months ended September 30, 2013, there was one site which accounted for more than 10% of our revenue: a clinical trial client accounted for approximately 40% of our revenue. During the nine months ended September 30, 2012, there were three sites which each accounted for approximately 10% or more of our clinical revenue: a university teaching center accounting for approximately 15%; a clinical trial client accounted for approximately 12%, and; a community hospital accounted for approximately 11%.

Note 4. Notes Payable and Lines of Credit

Below is a summary of our short-term and long-term debt obligations as of September 30, 2013 and December 31, 2012:

	September 30, 2013		December 31, 2012
December 2011 Financing Transaction	$	—	$	4,000,000
Secured Note Payable, short-term		43,622		79,867
Unamortized debt discount		—		(243,300	)
Notes Payable, Current Portion	$	43,622	$	3,836,567
Lines of Credit, Current Portion	$	6,000,000	$	3,000,000
Unamortized Debt Discount		—		(128,800	)
Lines of Credit, Current Portion	$	6,000,000	$	2,871,200
December 2011 Financing Transaction	$	—	$	2,000,000
2012 Convertible Debt Financing Transaction		—		3,000,000
December 2012 Bridge Financing Transaction		—		1,000,000
Other Note Payable		—		100,000
Secured Note Payable		—		22,298
Unamortized debt discount		—		(3,681,615	)
Notes Payable, Long-Term	$	—	$	2,440,683
Lines of Credit, Long-Term	$	—	$	6,000,000

Business Line of Credit — Wells Fargo

At September 30, 2013 and December 31, 2012, we have fully utilized a line of credit with Wells Fargo Bank which provides for maximum borrowings of $6 million. Interest on the line of credit is due monthly equal to 1.75% above the Daily One Month LIBOR rate (2.0% at September 30, 2013). The line of credit requires the repayment of principal, and any unpaid interest, in a single payment due upon maturity. The line of credit matures April 1, 2014, is guaranteed by Mr. Pappajohn, and is collateralized by a first lien on all of our assets including the assignment of our approved and pending patent applications.

Secured Note Payable

On September 25, 2012, we entered into a note payable secured by lab equipment due March 25, 2014. The note requires monthly payments of principal and interest at 18% per annum. At September 30, 2013, and December 31, 2012, $43,622 and $102,165 was outstanding under the note.

Conversion of Debt concurrent with IPO

On April 10, 2013, we completed our IPO and converted the following indebtedness into shares of common stock at the IPO price of $10.00 per share:

	Converted Amount		Common Shares
December 2011 Financing Transaction	$	4,500,000		450,000
2012 Convertible Debt Financing Transaction		3,000,000		300,000
December 2012 Bridge Financing Transaction		1,000,000		100,000
Business Lines of Credit (DAM)		1,000,000		100,000
Other Note Payable and accrued interest		134,300		13,430
	$	9,634,300		963,430

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In connection with the conversion of debt into common stock, we expensed the applicable remaining debt discounts of $3.5 million, financing fees of $419,000 and a contingently recognizable beneficial conversion feature in the converted debt of $3 million.

December 2011 Financing Transaction

At September 30, 2013 and December 31, 2012, $0.0 and $6.0 million, respectively, was outstanding under a Credit Agreement dated as of December 21, 2011, as amended and restated as of February 13, 2012.

The Credit Agreement was with John Pappajohn and Andrew Pecora (indirectly through an investment company), both members of our board of directors, and NNJCA Capital, LLC (“NNJCA”), a limited liability company of which Dr. Pecora is a member. Mr. Pappajohn originally provided $4.0 million of financing, NNJCA originally provided $1.5 million of financing and Dr. Pecora provided $500,000 of financing under the Credit Agreement. On April 10, 2013, Mr. Pappajohn converted $4.0 million and NNJCA converted $500,000 into 450,000 shares of our common stock at the IPO price of $10.00 per share concurrent with our IPO. The remaining outstanding balance of $1.5 million was repaid on August 19, 2013 using a portion of the proceeds from our Secondary Offering.

The loan bore an annual interest rate equal to the prime rate plus 6.25% (9.50% at August 19, 2013). We accrued a fee due to Pecora and NNJCA of $130,000 of which $32,667 was paid upon conversion of the notes and the remaining balance paid on August 19, 2013. The loan was secured by all of our assets, including our intellectual property, subject to prior first and second liens in favor of Wells Fargo Bank and DAM Holdings, LLC (“DAM”).

2012 Convertible Debt Financing Transaction

On April 10, 2013, the entire $3 million outstanding under a Restated Credit Agreement dated as of August 27, 2012, as amended and restated as of October 17, 2012, ($1,750,000 provided by Mr. Pappajohn and $1,250,000 provided by Mr. Oman) was converted into 300,000 shares of common stock at the IPO price of $10 per share.

Through April 10, 2013, the loan bore interest at the prime rate plus 6.25% (9.50% at April 10, 2013). In February 2013, because we did not consummate our IPO within 181 days of funding, the lenders received ten-year warrants to purchase an aggregate of 7,059 shares of our common stock (issued in proportion to their respective funding amounts) with an exercise price equal to the lesser of (i) $42.50 per share or (ii) the IPO price per share, which was $10.00. Pursuant to a subsequent agreement, described below, the warrants held by Mr. Pappajohn have an exercise price of $15.00 per share. The warrant exercise price is subject to standard anti-dilution protection in the event of stock splits, stock dividends, stock combinations, reclassifications and the like.

December 2012 Bridge Financing Transaction

On April 10, 2013, the entire $1 million outstanding under a credit agreement dated as of December 7, 2012, (all of which was provided by Mr. Pappajohn), was converted into 100,000 shares of common stock at the IPO price of $10.00 per share.

Through April 10, 2013, the loan bore interest at the prime rate plus 6.25% (9.50% at April 10, 2013). The credit agreement required Mr. Pappajohn to convert the outstanding principal balance into shares of our common stock at a conversion price equal to the lesser of $42.50 or our IPO price and as a result all debt was converted on April 10, 2013 at the IPO price of $10.00 per share. In March 2013, Mr. Pappajohn received ten-year warrants to purchase an aggregate of 2,353 shares of our common stock with an exercise price equal to the lesser of (i) $42.50 per share or (ii) the IPO or merger price per share, because we did not consummate our IPO by March 7, 2013. Mr. Pappajohn subsequently agreed that if our final IPO price was below $15.00, there would be no further adjustment to the price or number of shares covered by the warrants held by him. The warrant exercise price is subject to standard anti-dilution protection in the event of stock splits, stock dividends, stock combinations, reclassifications and the like.

Business Line of Credit – DAM

At September 30, 2013 and December 31, 2012, $0.0 million and $3 million, respectively, were outstanding under a line of credit agreement with DAM.

On April 10, 2013, $1 million of indebtedness under this line was converted into 100,000 shares of common stock at the IPO price of $10 per share. The remaining outstanding balance of $2.0 million was repaid on August 19, 2013 using a portion of the proceeds from our Secondary Offering.

Pursuant to an intercreditor agreement between Mr. Pappajohn and DAM (the “Intercreditor Agreement”), we were required to use the proceeds from our IPO to repay the full amount outstanding under the DAM Loan Agreement before any proceeds can be used to repay any debt outstanding under the Wells Fargo Line of Credit. On February 13, 2013, DAM agreed to convert $1.0 million which had been due April 1, 2013 of outstanding indebtedness into shares of common stock at the IPO price per share. We had accrued a fee

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due to DAM of $52,500 which was paid upon conversion of the line of credit. On March 19, 2013, the maturity date for $2 million of the DAM debt was extended to mature on August 15, 2013. The DAM debt bore an annual interest rate of 10% payable in equal monthly installments.

Other Note Payable

At December 31, 2012, notes payable included a $100,000 note payable to Dr. Chaganti, our Chairman of the Board. Accrued interest at December 31, 2012 was approximately $34,300. The note bore interest at 8.5% per annum. On April 10, 2013, the note and accrued interest converted into 13,430 shares of common stock at the IPO price of $10.00 per share.

Note 5. Letter of Credit

Pursuant to the terms of our lease for our Rutherford facility, during the second fiscal quarter of 2013 we restricted an additional $50,000 in cash in addition to the $250,000 that was previously restricted in order to secure a $300,000 letter of credit in favor of our landlord.

Note 6. Capital Stock

On April 10, 2013, we completed our IPO in which we issued and sold 690,000 shares of common stock (including the underwriter’s overallotment of 90,000 shares) at a public offering price of $10.00 per share. In connection with the offering, all outstanding shares of Series A preferred stock were converted into 376,525 shares of common stock, and all outstanding shares of Series B preferred stock were converted into 910,800 shares of common stock. Concurrent with the IPO, we issued 2,000 shares of common stock to Cleveland Clinic pursuant to our license agreement with Cleveland Clinic.

On August 19, 2013, we sold 1,500,000 shares of common stock at a public offering price of $10.00 per share resulting in gross proceeds of $15.0 million ($13.3 million of net proceeds after offering expenses and underwriting discounts).

On September 5, 2013, we sold 105,000 additional common shares pursuant to the underwriter’s partial exercise of the over-allotment option which resulted in gross proceeds of $1.1 million ($947,000 of net proceeds after offering expenses and underwriting discounts).

We are currently authorized to issue up to 9,764,000 shares of preferred stock.

Subsequent Event

On October 28, 2013, we sold 3,286,700 shares of common stock, (including the underwriter’s overallotment of 428,700 shares), at a public offering price of $14.00 per share resulting in gross proceeds of $46.0 million (net proceeds of $42.2 million).

Note 7. Stock Option Plans

We have two equity incentive plans: the 2008 Stock Option Plan (the “2008 Plan”) and the 2011 Equity Incentive Plan (the “2011 Plan”, and together with the 2008 Plan, the “Stock Option Plans”). The 2011 Plan was approved by the Board of Directors on June 30, 2011 and was subsequently ratified by stockholders. The 2011 Plan authorizes the issuance of up to 350,000 shares of common stock under several types of equity awards including stock options, stock appreciation rights, restricted stock awards and other awards defined in the 2011 Plan. There have been no awards under the 2011 Plan.

The Board of Directors adopted the 2008 Plan on April 29, 2008 and reserved 251,475 shares of common stock for issuance under the plan. On April 1, 2010, the stockholders voted to increase the number of shares reserved by the plan to 550,000. The 2008 Plan is meant to provide additional incentive to officers, employees and consultants to remain in our employment. We are authorized to issue incentive stock options or non-statutory stock options to eligible participants. Options granted are generally exercisable for up to 10 years.

At September 30, 2013, 91,706 shares remain available for future awards under the 2008 Plan and 350,000 shares remain available for future awards under the 2011 Plan.

As of September 30, 2013, no stock appreciation rights, restricted stock, or awards other than stock options had been awarded under the Stock Option Plans.

We have also issued 48,000 options outside of the Stock Option Plans.

The Board of Directors authorized an offer to certain employee options holders on the following terms: those employees holding stock options with a strike price of $25.00 or more had the opportunity to exchange their options for 60% of the number of options currently held with an exercise price equal to the IPO price, which was $10.00 per share, and those employees holding stock options with a

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strike price of $12.50 had the opportunity to exchange their options for 80% of the number of options currently held with an exercise price equal to the IPO price which was $10.00 per share. On April 5, 2013, our initial public offering became effective and 336,300 options with exercise prices ranging from $12.50 to $33.80 were exchanged for 242,070 options with an exercise price of $10.00. In addition, 53,500 options which were approved to be issued and priced at the IPO price were issued to employees with an exercise price of $10.00 per share.

On April 17, 2013, we issued 5,850 options to employees with an exercise price of $11.75 per share as approved by the Board of Directors.

A summary of employee and nonemployee stock option activity for year ended December 31, 2012 and the nine months ended September 30, 2013 is as follows:

	Options Outstanding					Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
	Number of Shares			Weighted- Average Exercise Price
Outstanding January 1, 2012		559,990		$	12.85		8.10	$	11,737,710
Granted		2,400			33.80
Cancelled or expired		(9,050	)		23.43
Outstanding December 31, 2012		553,340		$	12.76		7.13	$	1,142,432
Granted		59,350			10.17
Cancelled or expired		(106,396	)		20.46
Outstanding September 30, 2013		506,294		$	7.60		6.53	$	6,407,644
Exercisable, September 30, 2013		393,580		$	7.00		6.24	$	5,220,243

Aggregate intrinsic value represents the difference between the estimated fair value of our common stock and the exercise price of outstanding, in-the-money options. The estimated fair value of our common stock was $20.26 and $9.60 as of September 30, 2013 and December 31, 2012, respectively. No options were exercised during the nine months ended September 30, 2013 and 2012.

As of September 30, 2013 and December 31, 2012, total unrecognized compensation cost related to nonvested stock options granted to employees was $768,129 and $846,810 respectively, which we expect to recognize over the next 2.57 and 2.61 years, respectively.

As of September 30, 2013 there was no unrecognized compensation cost related to nonvested stock options granted to non-employees. As of December 31, 2012, total unrecognized compensation cost related to nonvested stock options granted to non-employees was $190,500, which was recognized over the first six months of 2013. The estimate of unrecognized nonemployee compensation is based on the fair value of the nonvested options as of December 31, 2012.

The following table summarizes information about outstanding and vested stock options granted to employees and non-employees as of September 30, 2013 as follows:

	Options Outstanding						Options Vested and Exercisable
Exercise Price	Number of Shares Outstanding		Weighted- Average Remaining Contractual Life (in years)		Weighted- Average Exercise Price		Number of Shares		Weighted- Average Exercise Price
4.00		175,000		5.58	$	4.00		175,000	$	4.00
4.80		33,340		6.30		4.80		25,459		4.80
10.00		292,154		7.06		10.00		193,011		10.00
11.75		5,600		9.54		11.75		—		11.75
12.50		200		7.19		12.50		110		12.50
Total		506,294		6.53	$	7.60		393,580	$	7.00

The fair value of options granted to employees is estimated on the grant date using the Black-Scholes option valuation model. This valuation model for stock-based compensation expense requires us to make assumptions and judgments about the variables used in the calculation, including the fair value of our common stock (see Note 9), the expected term (the period of time that the options granted are expected to be outstanding), the volatility of our common stock, a risk-free interest rate, and expected dividends. We also estimate forfeitures of unvested stock options. To the extent actual forfeitures differ from the estimates, the difference will be recorded as a

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cumulative adjustment in the period estimates are revised. No compensation cost is recorded for options that do not vest. We use the simplified calculation of expected life described in the SEC’s Staff Accounting Bulletin No. 107, Share-Based Payment, and volatility is based on an average of the historical volatilities of the common stock of four entities with characteristics similar to those of the Company. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option. We use an expected dividend yield of zero, as we do not anticipate paying any dividends in the foreseeable future. Expected forfeitures are assumed to be zero due to the small number of plan participants and the plan design which has monthly vesting after an initial cliff vesting period.

The following table presents the weighted-average assumptions used to estimate the fair value of options granted to employees during the periods presented:

	Nine Months Ended September 30,
	2013			2012
Volatility		77.11	%		77.39	%
Risk free interest rate		0.76	%		1.43	%
Dividend yield		0.00	%		0.00	%
Term (years)		5.95			6.50
Weighted-average fair value of options granted during the period	$	6.72		$	9.34

There were no options granted during the three months ended September 30, 2013 and 2012.

In 2010, we issued an aggregate of 80,000 options to non-employees with an exercise price of $25.00. As described above, on April 5, 2013, these options were exchanged for 48,000 options with an exercise price of $10.00. The following table presents the weighted-average assumptions used to estimate the fair value of options reaching their measurement date for non-employees during the periods presented:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Volatility		75.32	%		75.23	%		75.87	%		75.01	%
Risk free interest rate		1.93	%		1.04	%		1.40	%		1.31	%
Dividend yield		0.00	%		0.00	%		0.00	%		0.00	%
Term (years)		7.21			8.10			7.50			8.35

The following table presents the effects of stock-based compensation related to stock option awards to employees and nonemployees on our Statement of Operations during the periods presented:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Cost of revenues	$	8,442	$	1,126	$	22,621	$	9,557
Research and development		28,516		120,183		119,314		389,295
General and administrative		71,268		62,426		223,535		223,150
Sales and marketing		9,107		17,748		41,731		144,165
Total stock-based compensation	$	117,333	$	201,483	$	407,202	$	766,167

Subsequent Events

On October 3, 2013, the Company received $1,640 from a former employee who exercised options to purchase 164 shares of common stock at $10.00 per share.

On October 8, 2013, the Compensation Committee of the Company’s Board of Directors (the “Compensation Committee”) granted eight employees incentive stock options to purchase a total of 19,600 shares of the Company’s common stock at an exercise price of $19.88 per share (the closing price of a share of common stock on The NASDAQ Capital Market on October 7, 2013). The options are scheduled to vest over a period of five years.

On October 10, 2013 (the “Grant Date”), the Compensation Committee granted each the Company’s Chief Executive Officer and Vice President Research and Development an option to purchase 200,000 shares and 10,000 shares, respectively, of the Company’s common stock at an exercise price of $15.39 per share (the closing price of a share of common stock on The NASDAQ Capital

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Market on the business day immediately prior to the Grant Date). The options are scheduled to expire on the tenth anniversary of the Grant Date and are scheduled to vest over a period of five years from the Grant Date. The vesting of the option granted to the Chief Executive Officer may be accelerated upon the achievement of certain milestones. In addition, the Company committed to issue 50,000 restricted shares of common stock to the Chief Executive Officer.

On October 10, 2013, the Company granted each non-employee director, other than the chairman of the board, options to purchase 10,000 shares of Common Stock at an exercise price of $15.39 (the closing price of a share of common stock on The NASDAQ Capital Market on October 9, 2013), resulting in a total grant of 60,000 options. In addition, the Company granted Mr. Brownlie, the chairman of the audit committee, options to purchase 12,312 shares of Common Stock at an exercise price of $15.39 and the Company granted Mr. Thompson 2,500 fully vested shares of restricted stock in recognition of his past service as chairman of the audit committee.

On October 10, 2013, the Compensation Committee granted 12 employees incentive stock options to purchase a total of 77,000 shares of the Company’s common stock at an exercise price of $15.39 per share (the closing price of a share of common stock on The NASDAQ Capital Market on October 9, 2013). The options are scheduled to vest over a period of five years.

On October 10, 2013, the Company’s board of directors adopted a compensation policy for its non-employee directors, other than the chairman of the board who is compensated pursuant to the terms of a separate consulting agreement. This policy provides for the following cash compensation to the Company’s non-employee directors, other than the chairman of the board:

• each non-employee director will receive an annual base fee of $10,000; and

• in addition to the $10,000 annual base fee, the chairman of the audit committee will receive an annual fee of $10,000.

This policy provides for the following equity compensation to the Company’s non-employee directors, other than our chairman of the board:

• each non-employee director, other than the chairman of the board, will receive bi-annual restricted stock awards of 5,000 shares of common stock; and

• each non-employee director, other than the chairman of the board, will receive annual option grants to purchase 10,000 shares of common stock.

The restricted stock awards and option grants will each vest in two equal annual installments. Equity grants under the director compensation policy are subject to the adoption of a new equity plan or amendment to increase the shares available for issuance under the 2011 Plan.

All fees under the director compensation policy will be paid on a quarterly basis and no per meeting fees will be paid. The Company will also reimburse non-employee directors for reasonable expenses incurred in connection with attending board and committee meetings.

Note 8. Warrants

We have issued certain warrants which contain an exercise price adjustment feature in the event we issue additional equity instruments at a price lower than the exercise price of the warrant. The warrants are described herein as derivative warrants. For all derivative warrants, in the event equity instruments are issued at a price lower than the exercise price of the warrant, the exercise price is adjusted to the price of the new equity instruments issued (price adjustment feature). For certain of these warrants, the number of shares underlying the warrant is also adjusted to an amount computed by dividing the proceeds of the warrant under its original terms by the revised exercise price (share adjustment feature). These warrants are initially recorded as a warrant liability at fair value with a corresponding entry to the loan guarantee fee asset, debt discount, additional paid-in capital or expense dependent upon the service provided in exchange for the warrant grant. Subsequently, any change in fair value is recognized in earnings until such time as the warrants are exercised, amended or expire.

In connection with the 2012 Convertible Debt Financing Transaction, we granted 4,118 warrants to Mr. Pappajohn and 2,941 warrants to Mr. Oman on February 22, 2013. The warrants have a ten-year term and an exercise price equal to the IPO price of $10.00 per share. Pursuant to a subsequent agreement, the warrants held by Mr. Pappajohn have an exercise price of $15.00 per share. These warrants were initially recorded at fair value as a financing fee asset and were amortized over the period of the note to interest expense. The issue date fair value of these warrants was $221,000.

In connection with the December 2012 Bridge Financing Transaction, we granted 2,353 ten-year warrants with an exercise price equal to the IPO price of $10.00 per share to Mr. Pappajohn on March 7, 2013. Mr. Pappajohn subsequently agreed that if our final IPO price was below $15.00, there would be no further adjustment to the price or number of shares covered by the warrants held by him. These warrants were initially recorded at fair value as a financing fee asset and were amortized over the period of the note to interest expense. The issue date fair value of these warrants was $47,000.

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On February 11, 2013, John Pappajohn agreed to limit certain anti-dilution rights in his warrants to purchase shares of the Company’s common stock. Subject to the consummation of an IPO prior to April 13, 2013, Mr. Pappajohn agreed that if the final IPO price was below $15.00, the exercise price of the warrants held by him would adjust to $15.00 and the number of shares underlying the warrants would be adjusted as if the IPO price were $15.00 and then there would be no further adjustment to the price or number of shares covered by warrants held by him. In February 2013, certain warrant holders agreed to waive the price and share adjustment provisions of their warrants, except for the anti-dilution provisions related to stock splits, subdivisions and combinations, with respect to an aggregate of 114,030 shares of common stock underlying such warrants, effective immediately following the consummation of our IPO on April 10, 2013 at $10.00 per share.

On April 10, 2013, the Company completed the IPO at $10.00 per share. The shares of common stock issuable upon the exercise of warrants increased by 838,889 shares and the exercise prices of 1,656,860 warrants were adjusted as a result of share and exercise price adjustment features in certain warrants.

On April 29, 2013, the Company received $96,000 from shareholders who exercised warrants to purchase 24,000 shares of common stock at $4.00 per share.

On July 6, 2013, a warrant holder exercised a warrant to purchase 6,000 shares of common stock at an exercise price of $4.00 per share using the net issuance exercise method whereby 2,072 shares were surrendered as payment in full of the exercise price resulting in a net issuance of 3,928 shares.

On July 8, 2013, the Company received $96,000 from shareholders who exercised warrants to purchase 24,000 shares of common stock at $4.00 per share.

On September 10, 2013 and September 27, 2013, the Company extended the expiration date of 42,468 warrants for 17 days and 11 days respectively.

On September 30, 2013, warrant holders exercised warrants to purchase 30,034 shares of common stock at an exercise price of $10.00 per share using the net issuance exercise method whereby 14,313 shares were surrendered as payment in full of the exercise price resulting in a net issuance of 15,721 shares.

The following table summarizes the warrant activity for the nine months ended September 30, 2013:

Issued With / For	Exercise Price			Warrants Outstanding January 1, 2013		2013 Warrants Issued		2013 Warrants Exercised			2013 Warrants Expired			IPO Adjustments (E)			Warrants Outstanding September 30, 2013
Non-Derivative Warrants:
Financing	$	10.00			—		—		—			—			243,334			243,334
Financing		15.00			—		—		—			—			436,079			436,079
Debt Guarantee		4.00			228,288		—		(54,000	)		—			—			174,288
Debt Guarantee		10.00			—		—		—			—			237,500			237,500
Debt Guarantee		15.00			—		—		—			—			585,645			585,645
Series A Pref. Stock		14.10			65,329		—		—			(22,861	)		—			42,468
Consulting		10.00			—		—		—			—			29,138			29,138
		12.42	F		293,617		—		(54,000	)		(22,861	)		1,531,696			1,748,452
Derivative Warrants:
Financing		10.00	B		—		—		—			—			60,000			60,000
Financing		25.00	B		60,000		—		—			—			(60,000	)		—
Financing		42.50	BCD		75,294		—		—			—			(75,294	)		—
Financing		42.50	AD		54,314		2,941		—			—			(57,255	)		—
Financing		42.50	ACD		120,865		6,471		—			—			(127,336	)		—
Debt Guarantee		10.00	A		—		—		—			—			12,500			12,500
Debt Guarantee		25.00	ACD		212,000		—		—			—			(212,000	)		—
Debt Guarantee		25.00	AD		95,000		—		—			—			(95,000	)		—
Debt Guarantee		25.00	A		5,000		—		—			—			(5,000	)		—
Debt Guarantee		32.45	ACD		40,000		—		—			—			(40,000	)		—
Debt Guarantee		42.50	ACD		38,392		—		—			—			(38,392	)		—
Debt Guarantee		42.50	BCD		37,000		—		—			—			(37,000	)		—
Series B Pref. Stock		10.00	B		—		—		(30,034	)		—			52,464			22,430
Series B Pref. Stock		25.00	B		52,464		—		—			—			(52,464	)		—
Consulting		10.00	B		—		—		—			—			200			200
Consulting		12.50	AD		4,030		—		—			—			(4,030	)		—
Consulting		14.10	AD		10,000		—		—			—			(10,000	)		—
Consulting		25.00	B		200		—		—			—			(200	)		—
Consulting		25.00	AD		4,000		—		—			—			(4,000	)		—
		10.00	F		808,559		9,412		(30,034	)		—			(692,807	)		95,130
	$	12.30	F		1,102,176		9,412		(84,034	)		(22,861	)		838,889			1,843,582

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^A  These warrants are subject to fair value accounting and contain exercise price and number of share adjustment features. See Note 9.

^B  These warrants are subject to fair value accounting and contain an exercise price adjustment feature. See Note 9.

^C  On February 11, 2013, these warrants held by John Pappajohn were amended to limit the adjustment feature(s) to $15.00 per share in an initial public offering (totaling 530,022 warrants).

^D  The exercise price and/or number of share adjustment features of these warrants expired and are no longer subject to fair value accounting after our initial public offering.

^E  On April 10, 2013 the Company completed the IPO at $10.00 per share. The shares of common stock issuable upon the exercise of warrants outstanding as of April 10, 2013 increased by 838,889 shares and the exercise prices of 1,656,860 warrants were adjusted as a result of the share and exercise price adjustment features described above.

^F  Weighted average exercise prices are as of September 30, 2013.

Subsequent Event

On October 28, 2013, warrant holders exercised warrants to purchase 33,868 shares of common stock, at exercise prices ranging from $10.00 – $14.10 per share, using the net issuance exercise method whereby 23,188 shares were surrendered as payment in full of the exercise price resulting in a net issuance of 10,680 shares.

Note 9. Fair Value of Warrants

The following tables summarize the assumptions used in computing the fair value of derivative warrants subject to fair value accounting at the date of issue during the nine months ended September 30, 2013 and 2012 and at September 30, 2013, April 5, 2013 (IPO valuation date) and December 31, 2012. In computing the fair value of the warrants, if the stated exercise price of the warrants exceeded the assumed value of the Company stock at the date the fair value was being computed, the exercise price and number of shares (if applicable) underlying the warrants were adjusted to reflect an assumed trigger of the price and/or share adjustment features related to the applicable warrants:

Debt Guarantee	Issued During the Nine Months Ended September 30, 2012			As of September 30, 2013			As of April 5, 2013			As of December 31, 2012
Exercise Price	$	42.50		$	10.00		$	13.56		$	9.60
Expected life (years)		4.73			1.08			2.42			2.66
Expected volatility		80.47	%		57.51	%		66.37	%		67.71	%
Risk-free interest rate		0.90	%		0.10	%		0.32	%		0.37	%
Expected dividend yield		0.00	%		0.00	%		0.00	%		0.00	%

Series B	As of September 30, 2013			As of December 31, 2012
Exercise Price	$	10.00		$	9.60
Expected life (years)		2.17			2.92
Expected volatility		65.18	%		61.44	%
Risk-free interest rate		0.33	%		0.36	%
Expected dividend yield		0.00	%		0.00	%

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Consulting	As of September 30, 2013			As of April 5, 2013			As of December 31, 2012
Exercise Price	$	10.00		$	10.00		$	9.60
Expected life (years)		2.39			2.33			2.48
Expected volatility		63.81	%		63.20	%		63.29	%
Risk-free interest rate		0.33	%		0.27	%		0.28	%
Expected dividend yield		0.00	%		0.00	%		0.00	%

	Issued During the Nine Months Ended September 30,						Issued During the Three Months Ended September 30, 2012			As of September  30, 2013			As of April  5, 2013			As of December  31, 2012
Financing	2013			2012
Exercise Price	$	13.34		$	42.50		$	42.50		$	10.00		$	13.21		$	9.60
Expected life (years)		9.78			4.93			5.08			2.50			8.30			6.66
Expected volatility		74.70	%		79.41	%		79.36	%		63.12	%		73.22	%		73.38	%
Risk-free interest rate		1.95	%		0.79	%		0.71	%		0.63	%		1.44	%		1.06	%
Expected dividend yield		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%

The assumed Company stock price used in computing the warrant fair value for warrants issued during the nine months ended September 30, 2013 was $9.60 – $20.26 and $18.70 – $33.80 for the nine months ended September 30, 2012. In determining the fair value of warrants issued at each reporting date, the assumed Company stock price was $20.26 at September 30, 2013 and $9.60 at December 31, 2012.

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The following table summarizes the derivative warrant activity subject to fair value accounting for the nine months ended September 30, 2013:

Issued with/for	Fair value of warrants outstanding as of December 31, 2012		Fair value of warrants issued		Reclassification to equity in IPO			Warrants Exercised			Change in fair value of warrants			Fair value of warrants outstanding as of September 30, 2013
Series B Preferred Stock	$	230,000	$	—	$	—		$	(373,000	)	$	422,000		$	279,000
Debt Guarantee		5,679,000		—		(2,514,000	)		—			(3,026,000	)		139,000
Consulting		147,000		—		(108,000	)		—			(36,000	)		3,000
Financing		6,493,000		268,000		(4,548,000	)		—			(1,456,000	)		757,000
	$	12,549,000	$	268,000	$	(7,170,000	)	$	(373,000	)	$	(4,096,000	)	$	1,178,000

Note 10. Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The Fair Value Measurements and Disclosures Topic of the FASB Accounting Standards Codification requires the use of valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. Inputs to valuation techniques refer to the assumptions that market participants would use in pricing the asset or liability. Inputs may be observable, meaning those that reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from independent sources, or unobservable, meaning those that reflect our own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. In that regard, the Topic establishes a fair value hierarchy for valuation inputs that give the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that we have the ability to access as of the measurement date.

Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect our own assumptions about the assumptions that market participants would use in pricing an asset or liability.

The following table summarizes the financial liabilities measured at fair value on a recurring basis segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value:

	September 30, 2013
	Total		Quoted Prices in         Active Markets for         Identical Assets         (Level 1)		Significant Other         Observable         Inputs         (Level 2)		Significant         Unobservable         Inputs         (Level 3)
Warrant liability	$	1,178,000		—		—	$	1,178,000

	December 31, 2012
	Total		Quoted Prices in         Active Markets for         Identical Assets         (Level 1)		Significant Other         Observable         Inputs         (Level 2)		Significant         Unobservable         Inputs         (Level 3)
Warrant liability	$	12,549,000		—		—	$	12,549,000

The warrant liability consists of stock warrants we issued that contain an exercise price adjustment feature. In accordance with derivative accounting for warrants, we calculated the fair value of warrants and the assumptions used are described in Note 9, “Fair Value of Warrants”. Realized and unrealized gains and losses related to the change in fair value of the warrant liability are included in Other income (expense) on the Statement of Operations.

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The following table reflects the activity for liabilities measured at fair value using Level 3 inputs for the nine months ended September 30:

	2013			2012
Balance as of January 1	$	12,549,000		$	11,113,000
Issuances of derivative financial instruments		268,000			3,678,000
Derivative financial instruments reclassified to equity in IPO		(7,170,000	)		—
Derivative financial instruments reclassified to equity upon exercise		(373,000	)		—
Unrealized (gain) loss related to change in fair value		(4,096,000	)		(6,370,000	)
Balance as of September 30	$	1,178,000		$	8,421,000

Note 11. Joint Venture Agreement

In November 2011, we entered into an affiliation agreement with the Mayo Foundation for Medical Education and Research (“Mayo”), subsequently amended. Under the agreement, we formed a joint venture with Mayo in May 2013 to focus on developing oncology diagnostic services and tests utilizing next generation sequencing. The joint venture will take the form of a limited liability company, with each party initially holding fifty percent of the issued and outstanding membership interests of the new entity (the “JV”). The agreement also requires aggregate total capital contributions by us of up to $5.0 million over the next two and a half years, with $4.0 million of such amount subject to the joint venture achieving certain operational milestones. In exchange for its membership interests, Mayo’s capital contribution will take the form of cash, staff, services, hardware and software resources, laboratory space and instrumentation, the fair market value of which will be approximately equal to $6 million. Mayo’s continued contribution will also be conditioned upon the JV’s achievement of certain milestones. The operation of the joint venture may also divert management time from operating our business. No assurances can be given that we will be able to fully fund the joint venture agreement, or that, even if funded, the joint venture will ever achieve the research, development and commercial objectives currently contemplated by the parties, such as the discovery and commercialization of new diagnostic tests utilizing next-generation sequencing. If the development efforts of the joint venture do not result in commercially successful tests or services, it will have an adverse effect on our business, financial condition and results of operations.

Subsequent Event

In exchange for the membership interests in the JV, we made an initial capital contribution of $1.0 million in October 2013. In addition, in October 2013, we issued 10,000 shares of our common stock to Mayo pursuant to our affiliation agreement with Mayo.

Note 12. Related Party Transactions

John Pappajohn, a member of the Board of Directors and stockholder, personally guarantees our revolving line of credit with Wells Fargo Bank. As consideration for his guarantee, as well as each of the eight extensions of this facility through September 30, 2013, Mr. Pappajohn received warrants to purchase an aggregate of 1,051,506 shares of common stock of which Mr. Pappajohn assigned warrants to purchase 284,000 shares of common stock to certain third parties. Warrants to purchase 395,825 shares of common stock have been exercised by Mr. Pappajohn through September 30, 2013. After adjustment pursuant to the terms of the warrants in conjunction with our IPO, the number of these warrants outstanding retained by Mr. Pappajohn was 585,645 at $15.00 per share and 44,288 at $4.00 per share.

In addition, John Pappajohn also had loaned us an aggregate of $6,750,000. In connection with these loans, Mr. Pappajohn received warrants to purchase an aggregate of 202,630 shares of common stock. After adjustment pursuant to the terms of the warrants in conjunction with our IPO, the number of warrants outstanding was 436,079 at $15.00 per share at September 30, 2013.

Andrew Pecora (indirectly through an investment company), a member of our board of directors, and NNJCA, a limited liability company of which Dr. Pecora is a member originally provided $500,000 and $1.5 million of financing, respectively, under a Credit Agreement dated as of December 21, 2011, as amended and restated as of February 13, 2012. On April 10, 2013, NNJCA converted $500,000 of its outstanding indebtedness into 50,000 shares of our common stock at the IPO price of $10.00 per share concurrent with our IPO. On August 19, 2013, the remaining principal under these notes were repaid to Dr. Pecora and NNJCA using a portion of the proceeds from our Secondary Offering.

The loan bore an annual interest rate equal to the prime rate plus 6.25% (9.50% at September 30, 2013). We accrued a fee due to Pecora and NNJCA of $130,000 of which $32,667 was paid upon conversion of the notes and the remaining balance paid on August 19, 2013.

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On May 19, 2006, we issued a convertible promissory note in favor of our Chairman and founder, Dr. Chaganti, the holder, which obligated us to pay the holder the sum of $100,000, together with interest at the rate of 8.5% per annum, due April 1, 2014. Interest expense for the nine months ended September 30, 2013 and 2012 totaled $2,357 and $6,300, respectively. (see Note 4 for additional information regarding the conversion of the promissory note into common stock concurrent with our IPO on April 10, 2013.). Pursuant to a consulting and advisory agreement, Dr. Chaganti also received options to purchase a total of 36,000 shares of common stock at price of $10.00 per share which vested over a two year period. Total non-cash stock-based compensation recognized under the consulting agreement for the nine months ended September 30, 2013 and 2012 were $76,220 and $367,050, respectively. Additionally, we entered into a three-year consulting agreement with Dr. Chaganti expiring on September 30, 2013 pursuant to which Dr. Chaganti received $5,000 per month for providing consulting and technical support services. Total expenses for each of the nine month periods ended September 30, 2013 and 2012 were $45,000.

On August 15, 2010, we entered into a two-year consulting agreement with Dr. Pecora, a member of our board of directors, pursuant to which Dr. Pecora received $5,000 per month for providing consulting and advisory services. Dr. Pecora also received stock options under the consulting and advisory agreement to purchase a total of 12,000 shares of common stock at price of $10.00 per share which vested over a two year period. The cash component of this agreement was terminated by mutual consent in 2011. Total non-cash stock-based compensation recognized under the consulting agreement for the nine months ended September 30, 2013 and 2012 were $0 and $142,740, respectively.

In August 2010, we entered into a consulting agreement with Equity Dynamics, Inc., an entity controlled by John Pappajohn, pursuant to which Equity Dynamics, Inc. receives a monthly fee of $10,000 plus reimbursement of expenses. Total consulting fees for each of the nine month periods ended September 30, 2013 and 2012 were $90,000. As of September 30, 2013, we owed Equity Dynamics, Inc. $20,000.

Note 13. Contingencies

In the normal course of business, the Company may become involved in various claims and legal proceedings. In the opinion of management, the ultimate liability or disposition thereof is not expected to have a material adverse effect on our financial condition, results of operations, or liquidity.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

As used herein, the “Company,” “we,” “us,” “our” or similar terms, refer to Cancer Genetics, Inc. and its wholly owned subsidiary, Cancer Genetics Italia, S.R.L. except as expressly indicated or unless the context otherwise requires. The following Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) is intended to help facilitate an understanding of our financial condition and our historical results of operations for the periods presented. This MD&A should be read in conjunction with the accompanying unaudited consolidated financial statements and the audited consolidated financial statements and notes thereto included in our Prospectus filed with the SEC pursuant to Rule 424 (b) under the Securities Exchange Act of 1933. This MD&A may contain forward-looking statements that involve risks and uncertainties. See “Forward-Looking Statements” below.

Overview

We are an early-stage diagnostics company focused on developing and commercializing proprietary genomic tests and services to improve and personalize the diagnosis, prognosis and response to treatment (theranosis) of cancer. Our proprietary tests target cancers that are complicated to prognose and for which it is difficult to predict treatment outcomes using currently available mainstream techniques. These cancers include hematological, urogenital and HPV-associated cancers. We provide our proprietary tests and services along with a comprehensive range of non-proprietary oncology-focused tests and laboratory services, to oncologists and pathologists at hospitals, cancer centers, reference laboratories and physician offices, as well as to biopharmaceutical companies and clinical research organizations for their clinical trials. To date, we have engaged in only limited sales and marketing activities and have generated most of our revenue through sales of our non-proprietary testing services to a limited number of oncologists, pathologists, community hospitals and biotechnology and pharmaceutical companies located mostly in the eastern and midwestern United States. Our non-proprietary laboratory testing services include molecular testing, sequencing, mutational analysis, flow cytometry testing, histology testing and cytology testing. We are currently offering our tests and laboratory services in our 17,936 square foot state-of-the-art laboratory located in Rutherford, New Jersey, which has been accredited by the College of American Pathologists, which is one of nine approved accreditation methods under the Clinical Laboratory Improvement Amendments of 1988 (“CLIA”), to perform high complexity testing.

Our proprietary tests are based principally on our expertise in specific cancer types, test development methodologies and proprietary algorithms correlating genetic events with disease specific information. We have commercially launched MatBA^®-CLL, our first proprietary microarray test for chronic lymphocytic leukemia (“CLL”) for use in our CLIA-accredited clinical laboratory. In January 2012, we received CLIA approval for MatBA^®-SLL, our proprietary microarray for risk stratification in small lymphocytic lymphoma (“SLL”), and we are currently offering MatBA^®-SLL in our laboratory. In February 2013, we received CLIA approval for MatBA^®-DLBCL, our proprietary microarray for diagnosis, prognosis and patient monitoring in diffuse large B cell lymphoma (“DLBCL”). In May 2013, we commercially launched UroGenRA^TM, our proprietary microarray for the diagnosis and prognosis of patients with kidney cancer for use in our CLIA-accredited clinical laboratory. We have also launched FHACT™ for cervical cancer outside the United States. In addition, we are developing a series of other proprietary genomic tests in our core oncology markets. Due to the recent introduction of these proprietary tests, the small numbers involved in our revenues, and the variability expected with the adoption of any new tests, no assurance or prediction can be given with respect to the level of revenues from our proprietary tests in the future.

We have established collaborative relationships with key thought leaders in oncology, which enable us to develop and validate the effectiveness and utility of our tests in a clinical setting and which provide us access to clinically-robust patient data. For example, we formed a joint venture in May 2013 with Mayo Foundation for Medical Education and Research which will focus on developing oncology diagnostic services and tests utilizing next-generation sequencing. Additionally, we agreed to a research collaboration with Memorial Sloan-Kettering Cancer Center and the Cleveland Clinic to validate our renal-cancer microarray, UroGenRA™-Renal.

The non-proprietary testing services we offer are entirely focused on specific oncology categories where we are developing our proprietary arrays and probe panels. We believe that there is significant synergy in developing and marketing a complete set of tests and services that are disease-focused and delivering those tests and services in a comprehensive manner to help with treatment decisions. The insight that we develop in delivering the non-proprietary services are often leveraged in the development of our proprietary programs and now increasingly in the validation of our proprietary programs (such as MatBA^®) for clinical use.

We believe that we can be successful by offering cancer professionals a fully-integrated menu of oncology-focused proprietary and non-proprietary tests and customized laboratory services. Based on our discussions with leading researchers in the oncology field and interactions with our collaborators, as well as information we learn through performing the non-proprietary genetic diagnostic testing services, which are focused on the specific oncology categories where we are developing our proprietary tests, we believe our proprietary tests provide superior diagnostic and prognostic values than currently available tests. In particular, our proprietary tests deliver a level of genomic information not provided by other currently available tests. For example, the majority of current cytogenetic analysis for CLL and SLL that is available in clinical laboratories today assesses gain and loss in genomic material at four specific sites. There are two other marketed arrays for CLL (GenPath/Bioreference Laboratories and Quest) of which we are aware. Both of these arrays report out gains and losses at four to five genomic sites. MatBA^®-CLL, on the other hand, is designed to report out gains and losses at twenty

22

genomic sites and MatBA^®-SLL can report out gains and losses at thirteen genomic sites. We believe our ability to rapidly translate research insights about the genetics and molecular mechanisms of cancer into the clinical setting will improve patient treatment and management and that this approach will become a key component in the standard of care for personalized cancer treatment.

We will offer our proprietary tests in the United States as laboratory developed tests (“LDTs”) and internationally as CE-marked in vitro diagnostic products. In addition, as part of our long-term strategy we plan to seek Food and Drug Administration (“FDA”) clearance or approval to expand the commercial use of our tests to other laboratories and testing sites. We believe it would likely take two years or more to conduct the studies and trials necessary to obtain approval from FDA to commercially launch our propriety tests outside of our clinical laboratory. Our sales strategy is focused on direct sales to oncologists and pathologists at hospitals, cancer centers, and physician offices in the United States and expanding our relationships with leading distributors and medical facilities in emerging markets. We intend to emphasize partnering with community hospitals, where nearly 85% of all cancers are initially diagnosed, through our program called Expand Dx™, which was specifically designed to meet the needs of community hospitals. We believe our proprietary tests and services will enable community hospitals to optimize and expand their oncology services to better serve their cancer patients.

We expect to continue to incur significant losses for the near future. We incurred losses of $6.7 million and $19.9 million for fiscal years ended December 31, 2012 and 2011, respectively. As of September 30, 2013, we had an accumulated deficit of $58.8 million. Changes in fair value of some of our common stock warrants have significantly impacted our results in recent periods. In particular, changes in the fair value of some of our common stock warrants accounted for a large portion of our losses in 2011 and 2010, whereas in 2012 and for the nine months ended September 30, 2013 we recognized non-cash income as a result of the change in fair value of such warrants. Accounting rules require us to record certain of our warrants as a liability, measure the fair value of these warrants each quarter and record changes in that value in earnings. Consequently, we may be exposed to non-cash charges, or we may record non-cash income, as a result of this warrant exposure in future periods. During 2012 we borrowed additional funds and restructured certain of our outstanding debt obligations, and issued additional warrants to our debt holders. As a result of these borrowings and restructurings, we incurred a significant one-time, non-cash debt and warrant restructuring charge and increased interest expense in 2012 and may incur additional non-cash income or expense related to our outstanding warrants in future periods.

For the nine months ended September 30, 2013, the change in the fair value of our warrant liability resulted in $4.1 million in non-cash income. The fair market value of certain of our outstanding common stock warrants that we are required to account for as liabilities decreased during the nine months ended September 30, 2013. The decrease principally resulted from a shareholder, Mr. John Pappajohn, limiting certain anti-dilution rights in his warrants to purchase shares of the Company’s common stock resulting in a lower fair value of the warrant liability and non-cash income during this period.

On April 10, 2013, we completed our IPO. In connection with the IPO, $9.6 million of debt was converted into common stock at the IPO price of $10.00 per share. In connection with the conversion of debt into common stock, we expensed the applicable remaining debt discounts of $3.5 million, financing fees of $419,000 and a contingently recognizable beneficial conversion feature in the converted debt of $3.0 million.

On August 19, 2013, we sold 1,500,000 shares of common stock at a public offering price of $10.00 per share resulting in gross proceeds of $15.0 million (net proceeds of $13.3 million). We used $3.5 million of the proceeds to repay certain indebtedness which was due on August 15, 2013 (see Note 4 for further discussion of the Company’s debt). On September 5, 2013, we sold 105,000 additional common shares pursuant to partial exercise of the underwriter’s over-allotment option which resulted in gross proceeds of $1.1 million (net proceeds of $947,000).

On October 28, 2013, we sold 3,286,700 shares of common stock, (including the underwriter’s overallotment of 428,700 shares), at a public offering price of $14.00 per share resulting in gross proceeds of $46.0 million (net proceeds of $42.2 million).

Key Factors Affecting our Results of Operations and Financial Condition

Our overall long-term growth plan is predicated on our ability to develop and commercialize our proprietary tests outside of our clinical laboratory and to increase comprehensive oncology testing volumes in our laboratory. We launched MatBA^®-CLL in the first quarter 2011 for use in our clinical laboratory, we received CLIA approval for MatBA^®-SLL in January 2012, we received CLIA approval for MatBA^®-DLBCL in February 2013, we commercially launched UroGenRA^TM in May 2013 for use in our clinical laboratory and we are developing additional proprietary tests. In order to market our tests to independent laboratories and testing facilities, we believe we will need to obtain approvals or clearances from the appropriate regulatory authorities, including FDA. Without these approvals, the success of these commercialization efforts will be limited. To obtain these approvals and facilitate market adoption of our proprietary tests, we anticipate having to successfully complete additional studies with clinical samples and publish our results in peer-reviewed scientific journals. Our ability to complete such studies is dependent upon our ability to leverage our collaborative relationships with leading institutions to facilitate our research and obtain data for our quality assurance and test validation efforts.

We believe that the factors discussed in the following paragraphs have had and are expected to continue to have a material impact on our results of operations and financial condition.

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Revenues

Our revenue in 2013 was generated principally through our clinical laboratory services, with approximately 3% of our revenue from sales of our DNA probes, which are only sold outside the United States and approximately 2% of our revenue from government research grants such as the National Cancer Institute. The clinical laboratory industry is highly competitive, and our relationship with the decision-maker at hospitals, cancer centers or physician offices is a critical component of securing their business. Consequently, our ability to attract and maintain productive sales personnel that have and can grow these relationships will largely determine our ability to grow our clinical services revenue. In order to grow our clinical laboratory revenue, we must continue to pursue validation studies and work with oncology thought leaders to develop data that is helpful in supporting the need for our tests and services.

Due to the early stage nature of our business and our limited sales and marketing activities to date, we have historically derived a significant portion of our revenue from a limited number of test ordering sites, although the test ordering sites that generate a significant portion of our revenue have changed from period to period. Our test ordering sites are largely hospitals, cancer centers, reference laboratories and physician offices, as well as biopharmaceutical companies as part of a clinical trial. Oncologists and pathologists at these sites order the tests on behalf of the needs of their oncology patients or as part of a clinical trial sponsored by a biopharmaceutical company in which the patient is being enrolled. The loss of any one of these test ordering sites would not materially adversely affect our results of operations. The top five test ordering sites during the nine months ended September 30, 2013 and 2012 accounted for 71% and 61%, respectively, of our clinical testing volumes, with 37% and 47%, respectively, of the volume coming from community hospitals. During the nine months ended September 30, 2013, there was one site which accounted for more than 10% of our revenue: a clinical trial client accounted for approximately 40% of our revenue. During the nine months ended September 30, 2012, there were three sites which each accounted for approximately 10% or more of our clinical revenue: a university teaching center accounting for approximately 15%; a clinical trial client accounted for approximately 12%, and; a community hospital accounted for approximately 11%. The top five test ordering sites during the three months ended September 30, 2013 and 2012 accounted for 75% and 61% respectively, of our clinical testing volumes, with 36% and 56% respectively, of the volume coming from community hospitals. During the three months ended September 30, 2013, there were two sites which accounted for more than 10% of our revenue: a clinical trial client accounted for approximately 44% of our revenue, and; a community hospital accounted for approximately 10%. During the three months ended September 30, 2012, there were three sites which each accounted for 10% or more of our clinical revenue: a clinical trial client accounted for approximately 15%; a university teaching center accounting for approximately 12%, and; a community hospital network accounted for approximately 10%.

We receive revenue for our clinical laboratory services from private insurance carriers and other non-Medicare payors (such as unions and self-insured plans), Medicare, “direct bill” customers, and grants. Direct bill customers are institutions that choose, generally at the beginning of our relationship, to pay for our laboratory services directly, as opposed to having patients (or their insurers) pay for those services and providing us with the patients’ insurance information. For instance, bio-pharmaceutical companies generally are direct bill customers. A hospital may elect to be a direct bill customer, and pay our bills directly, or may provide us with patient information so that their patients pay our bills, in which case we generally look to payment from their private insurance carrier or Medicare. In a few instances, we have arrangements where a hospital may have two accounts with us, so that certain tests are direct billed to the hospital, and certain tests are billed to and paid by a patient’s insurer. The billing arrangements generally are dictated by our customers and in accordance with state and federal law. For the nine months ended September 30, 2013, private insurance accounted for approximately 23% of our total revenue, Medicare accounted for approximately 13% of our total revenue, direct bill clients accounted for 59% of our total revenue and the balance of our revenue was attributable to grants and sales of our DNA probes. As we expand our portfolio of tests and services, our sales activities and our ExpandDX™ program, we expect the percentage of revenue from direct-bill customers may decrease over the long term. However, during 2012 we started working with a community hospital that preferred the direct bill model and a new direct bill clinical trial services customer, which resulted in a significant increase in direct bill customers as a percentage of revenue for 2012. It is too early in our development to predict whether our experience during 2012 indicates a reversal in the trend we had seen in prior years or simply a variation as we attempt to expand our business and introduce new community hospitals, regional laboratories or clinical trial services customers in a particular period. On average, we generate less revenue per test from direct-bill customers than from other third-party payors but we also have reduced sales cost associated with direct bill clients and significantly reduced collections risk from direct-bill customers and have not experienced any significant collection issues or expenses as a result. Typically, we negotiate discounts in the range of 5% to 20% with direct bill clients depending on the volume of business in a twelve month period.

Cost of Revenues

Our cost of revenues consists principally of internal personnel costs, including stock-based compensation, laboratory consumables, shipping costs, overhead and other direct expenses, such as specimen procurement and third party validation studies. We are pursuing various strategies to reduce and control our cost of revenues, including automating our processes through more efficient technology, attempting to negotiate improved terms with our suppliers and exploring relocating our manufacturing operations to a lower cost-base country.

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Operating Expenses

We classify our operating expenses into three categories: research and development, sales and marketing, and general and administrative. Our operating expenses principally consist of personnel costs, including stock-based compensation, outside services, laboratory consumables and overhead, development costs, marketing program costs and legal and accounting fees.

Research and Development Expenses. We incur research and development expenses principally in connection with our efforts to develop our proprietary tests. Our primary research and development expenses consist of direct personnel costs, laboratory equipment and consumables and overhead expenses. We anticipate that research and development expenses will increase in the near-term, principally as a result of hiring additional personnel to develop and validate tests in our pipeline and to perform work associated with our research collaborations. In addition, we expect that our costs related to collaborations with research and academic institutions will increase. For example, we recently entered into an affiliation agreement to form a joint venture with the Mayo Foundation for Medical Education and Research. All research and development expenses are charged to operations in the periods they are incurred.

Sales and Marketing Expenses. Our sales and marketing expenses consist principally of personnel and related overhead costs for our sales team and their support personnel, travel and entertainment expenses, and other selling costs including sales collaterals and trade shows. We expect our sales and marketing expenses to increase significantly after we complete our initial public offering as we expand into new geographies and add new clinical tests and services.

General and Administrative Expenses. General and administrative expenses consist principally of personnel-related expenses, professional fees, such as legal, accounting and business consultants, occupancy costs, bad debt and other general expenses. We expect that our general and administrative expenses will increase as we expand our business operations. We further expect that general and administrative expenses will increase significantly due to increased information technology (“IT”), legal, insurance, accounting and financial reporting expenses associated with being a public company.

Seasonality

Our business experiences decreased demand during spring vacation season, summer months and the December holiday season when patients are less likely to visit their health care providers. We expect this trend in seasonality to continue for the foreseeable future.

Results of Operations

Three Months Ended September 30, 2013 and 2012

The following table sets forth certain information concerning our results of operations for the periods shown:

	Three Months  Ended September 30,						Change
	2013			2012			$			%
(dollars in thousands)
Revenue	$	1,705		$	1,243		$	462			37	%
Cost of revenues		1,211			972			239			25	%
Research and development expenses		433			501			(68	)		(14	%)
Sales and marketing expenses		443			334			109			33	%
General and administrative expenses		1,298			1,146			152			13	%
Total Operating Loss		(1,680	)		(1,710	)		30			2	%
Interest expense, net		(353	)		(1,312	)		959			73	%
Change in fair value of warrant liability		(1,033	)		3,334			(4,367	)		(131	%)
(Loss) income before income taxes		(3,066	)		312			(3,378	)		(1,083	%)
Income tax (benefit) expense		—			—			—			—
Net (Loss) income	$	(3,066	)	$	312		$	(3,378	)		(1,083	%)

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Revenue

Revenue increased 37%, or $462,000, to $1.7 million for the three months ended September 30, 2013, from $1.2 million for the three months ended September 30, 2012, primarily due to an increase in test volume. Our average revenue (excluding grant revenue and probe revenue) per test decreased by 4% to $531 per test for the three months ended September 30, 2013, from $551 per test for the three months ended September 30, 2012, principally due to a decrease in the average revenue per test for tests reimbursed under Medicare. Our test volume increased by 71% to 2,920 for the three months ended September 30, 2013, from 1,704 for the three months ended September 30, 2012 due to an increase in tests performed for a significant clinical trials client. Grant revenue decreased $180,000 to $100,000 for the three months ended September 30, 2013, from the three months ended September 30, 2012, due to the completion of scheduled drawdowns.

Revenue from direct bill customers increased 124%, or $587,000, to $1.1 million for the three months ended September 30, 2013, from $474,000 for the three months ended September 30, 2012, principally due to an increase in revenue from a significant clinical trial client. Revenue from direct bill customers as a percentage of total revenue increased to 62% for the three months ended September 30, 2013, from 38% for the three months ended September 30, 2012. Revenue from private insurance carriers and other non-Medicare payors decreased 9%, or $27,000, to $260,000 for the three months ended September 30, 2013, from $287,000 for the three months ended September 30, 2012, principally due to a change in test mix. Revenue from private insurance carriers and other non-Medicare payors as a percentage of total revenue decreased to 15% of total revenue for the three months ended September 30, 2013, from 23% of total revenue for the three months ended September 30, 2012. Revenue from Medicare increased 29%, or $52,000, to $230,000 for the three months ended September 30, 2013, from $178,000 for the three months ended September 30, 2012, principally due to an increase in testing volume. Revenue from Medicare as a percentage of total revenue decreased to 13% for the three months ended September 30, 2013, from 14% for the three months ended September 30, 2012. Revenue from DNA probe sales by CGI Italia increased 130%, or $31,000, to $55,000 for the three months ended September 30, 2013, from $24,000 for the three months ended September 30, 2012, principally due to an increase in sales volume.

Cost of Revenues

Cost of revenues increased 25%, or $239,000, to $1.2 million for the three months ended September 30, 2013, from $1.0 million for the three months ended September 30, 2012, principally due to clinical supply costs related to higher test volumes. However, due to scaling efficiencies associated with performing a large amount of tests for a significant clinical trials client, costs did not increase proportionately relative to the increase in revenues.

Operating Expenses

Research and Development Expenses. Research and development expenses decreased 14%, or $68,000, to $433,000 for the three months ended September 30, 2013, from $501,000 for the three months ended September 30, 2012, principally as a result of a decrease in non-employee stock-based compensation related expenses of $91,000 and a decrease of $30,000 in employee compensation related expenses, both of which were partially offset by an increase in supplies expense of $76,000.

Sales and Marketing Expenses. Sales and marketing expenses increased 33%, or $109,000, to $443,000 for the three months ended September 30, 2013, from $334,000 for the three months ended September 30, 2012, principally due to an increase in headcount and compensation-related costs.

General and Administrative Expenses. General and administrative expenses increased 13%, or $152,000, to $1.3 million for the three months ended September 30, 2013, from $1.1 million for the three months ended September 30, 2012, principally due to an increase in professional fees of $255,000 as a result of being a public company, an increase of $89,000 in insurance costs coincident with the additional risk of a public company, both of which were partially offset by $144,000 related to non-cash expense incurred in 2012 in connection with the extension of Series A Preferred warrants and an $84,000 decrease in compensation expenses (resulting from the payout of bonuses in 2012).

Interest Income and Expense

Interest expense decreased 73%, or $1.0 million, to $353,000 for the three months ended September 30, 2013, from $1.3 million for the three months ended September 30, 2012. The decrease is attributable to the conversion of $9.6 million of debt into common stock which occurred concurrently with our IPO on April 10, 2013 and the repayment of $3.5 million in indebtedness in August 2013.

Change in Fair Value of Warrant Liability

The change in the fair value of our warrant liability resulted in $1.0 million in non-cash expense for the three months ended September 30, 2013, as compared to non-cash income of $3.3 million for the three months ended September 30, 2012. Certain of our outstanding common stock warrants, which we are required to account for as liabilities, are re-valued each quarter at amounts that

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correspond with changes in the value of our common stock. Concurrent with the IPO date of April 10, 2013, derivative warrants with a fair value of $7.2 million were reclassified into equity due to the lapsing of anti-dilution provisions in the warrants. Since the re-classification, future changes in the value of these particular warrants are no longer required to be recorded in our financial statements. Also since the re-classification, there are significantly less warrants that are subject to revaluation each quarter. During the three months ended September 30, 2013, the fair market value of the 95,130 remaining common stock warrants that are subject to revaluation increased as a consequence of an increase in our stock price and resulted in $1.0 million of non-cash expense during this period.

During the three months ended September 30, 2012, the fair market value of these common stock warrants decreased as a consequence of a decrease in our assumed stock price and resulted in $3.3 million of non-cash income during that period.

Results of Operations

Nine Months Ended September 30, 2013 and 2012

The following table sets forth certain information concerning our results of operations for the periods shown:

	Nine Months  Ended September 30,						Change
	2013			2012			$			%
(dollars in thousands)
Revenue	$	4,755		$	3,226		$	1,529			47	%
Cost of revenues		3,560			2,880			680			24	%
Research and development expenses		1,384			1,552			(168	)		(11	%)
Sales and marketing expenses		1,275			1,050			225			21	%
General and administrative expenses		4,259			3,475			784			23	%
Total Operating Loss		(5,723	)		(5,731	)		8			0	%
Interest expense, net		(2,035	)		(3,260	)		1,225			38	%
Debt conversion costs		(6,850	)		—			(6,850	)		n/a
Change in fair value of warrant liability		4,096			6,370			(2,274	)		(36	%)
Loss before income taxes		(10,512	)		(2,621	)		(7,891	)		(301	%)
Income tax (benefit) expense		(664	)		—			(664	)		n/a
Net loss	$	(9,848	)	$	(2,621	)	$	(7,227	)		(276	%)

Revenue

Revenue increased 47%, or $1.5 million, to $4.8 million for the nine months ended September 30, 2013, from $3.2 million for the nine months ended September 30, 2012, due to increases in test volume and average revenue per test. Our average revenue (excluding grant revenue and probe revenue) per test increased by 3% to $562 per test for the nine months ended September 30, 2013, from $545 per test for the nine months ended September 30, 2012, principally due to an increase in the average revenue per test attributable to clinical trial services. Our test volume increased by 63% to 8,035 for the nine months ended September 30, 2013, from 4,937 for the nine months ended September 30, 2012 principally due to an increase in tests performed for a significant clinical trials client. Grant revenue decreased $375,000 to $100,000 for the nine months ended September 30, 2013, from the nine months ended September 30, 2012, due to the completion of scheduled drawdowns.

Revenue from direct bill customers increased 142%, or $1.6 million, to $2.8 million for the nine months ended September 30, 2013, from $1.2 million for the nine months ended September 30, 2012, principally due to an increase in revenue from a significant clinical trials client. Revenue from direct bill customers as a percentage of total revenue increased to 59% for the nine months ended September 30, 2013, from 36% for the nine months ended September 30, 2012. Revenue from private insurance carriers and other non-Medicare payors increased 13%, or $125,000, to $1.1 million for the nine months ended September 30, 2013, from $946,000 for the nine months ended September 30, 2012, principally due to an increase in testing volume. Revenue from private insurance carriers and other non-Medicare payors as a percentage of total revenue decreased to 23% of total revenue for the nine months ended September 30, 2013, from 29% of total revenue for the nine months ended September 30, 2012. Revenue from Medicare increased 9%, or $51,000, to $638,000 for the nine months ended September 30, 2013, from $587,000 for the nine months ended September 30, 2012, principally due to a higher number of Medicare reimbursed tests. Revenue from Medicare as a percentage of total revenue decreased to 13% for the nine months ended September 30, 2013, from 18% for the nine months ended September 30, 2012. Revenue from DNA probe sales by CGI Italia increased 147%, or $88,000, to $147,000 for the nine months ended September 30, 2013, from $60,000 for the nine months ended September 30, 2012, principally due to an increase in sales volume.

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Cost of Revenues

Cost of revenues increased 24%, or $680,000, to $3.6 million for the nine months ended September 30, 2013, from $2.9 million for the nine months ended September 30, 2012, principally due to clinical supply costs related to higher test volumes. However, due to scaling efficiencies associated with performing a large amount of tests for a clinical trials client, costs did not increase proportionately relative to the increase in revenues.

Operating Expenses

Research and Development Expenses. Research and development expenses decreased 11%, or $168,000, to $1.4 million for the nine months ended September 30, 2013, from $1.6 million for the nine months ended September 30, 2012, principally as a result of a decrease in non-employee stock-based compensation related expenses of $271,000 and a decrease of $204,000 in employee compensation related expenses, both of which were partially offset by an increase in supplies expense of $286,000.

Sales and Marketing Expenses. Sales and marketing expenses increased 21%, or $225,000, to $1.3 million for the nine months ended September 30, 2013, from $1.1 million for the nine months ended September 30, 2012, principally due to an increase in headcount and compensation-related costs.

General and Administrative Expenses. General and administrative expenses increased 23%, or $784,000 to $4.3 million for the nine months ended September 30, 2013, from $3.5 million for the nine months ended September 30, 2012, principally due to the write-off of $618,000 of deferred IPO costs and an increase of $244,000 in compensation and headcount-related expenses (including IPO bonuses paid in 2013 and stock-based compensation), an increase of $133,000 in insurance costs coincident with the additional risk of a public company, and an increase of $136,000 professional fees as a result of being a public company. These increases were partially offset by a decrease of $350,000 for the legal settlement which was recorded in the prior year period.

Interest Income and Expense

Interest expense decreased 38%, or $1.2 million, to $2.0 million for the nine months ended September 30, 2013, from $3.3 million for the nine months ended September 30, 2012. The decrease is attributable to the conversion of $9.6 million of debt into common stock which occurred concurrently with the closing of our IPO on April 10, 2013 and the repayment of $3.5 million in indebtedness in August 2013.

Debt Conversion Costs

On April 10, 2013, we completed our IPO. In connection with the IPO, $9.6 million of debt was converted into common stock at the IPO price of $10.00 per share. In connection with the conversion of debt into common stock, we expensed the applicable remaining debt discounts of $3.5 million, financing fees of $419,000 and a contingently recognizable beneficial conversion feature in the converted debt of $3.0 million, the total of which resulted in a $6.9 million write-off.

Change in Fair Value of Warrant Liability

The change in the fair value of our warrant liability resulted in $4.1 million in non-cash income for the nine months ended September 30, 2013, as compared to non-cash income of $6.4 million for the nine months ended September 30, 2012. The fair market value of certain of our outstanding common stock warrants, that we are required to account for as liabilities, decreased during the period from December 31, 2012 through September 30, 2013, and principally resulted from a shareholder, Mr. John Pappajohn, limiting certain anti-dilution rights in his warrants to purchase shares of the Company’s common stock, resulting in a lower fair value of the warrant liability and non-cash income during this period. Concurrent with the IPO on April 10, 2013, derivative warrants with a fair value of $7.2 million were reclassified into equity due to the lapsing of anti-dilution provisions in the warrants. Since the re-classification, future changes in the value of these specific warrants are no longer required to be recorded in our financial statements although there are 95,130 warrants that are still subject to future revaluation.

During the nine months ended September 30, 2012, the fair market value of these common stock warrants decreased as a consequence of a decrease in our stock price and resulted in $6.4 million of non-cash income during this period.

Income Taxes

During the nine months ended September 30, 2013, we received $664,000 in cash for the sale of certain state NOL carryforwards.

Liquidity and Capital Resources

Sources of Liquidity

Our primary sources of liquidity have been funds generated from our debt financings and equity financings. In addition, we have generated funds from the following sources: (i) the grants received in lieu of federal income tax credits under the Qualifying Therapeutic Discovery Project Program; (ii) grants from the National Institutes of Health and (iii) cash payments generated from operations.

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During January 2013, we received $664,000 in cash in from sales of state NOL’s.

On April 10, 2013, we sold 690,000 shares of common stock at a public offering price of $10.00 per share and completed our IPO with net proceeds of $5 million. Upon the closing of the IPO, all shares of our then-outstanding Series A and Series B convertible preferred stock automatically converted into an aggregate of 1,287,325 shares of common stock. Concurrent with the IPO, certain derivative warrants with a fair value of $7.2 million were reclassified into equity due to the lapsing of anti-dilution provisions in the warrants. Also concurrent with the IPO, $9.6 million of debt converted into 963,430 shares of common stock. Refer to Notes 1, 4 and 6 to the Consolidated Financial Statements accompanying this filing.

On April 29, 2013, the Company received $96,000 from shareholders who exercised warrants to purchase 24,000 shares of common stock at $4.00 per share.

On July 8, 2013, the Company received $96,000 from shareholders who exercised warrants to purchase 24,000 shares of common stock at $4.00 per share.

On August 19, 2013, we sold 1,500,000 shares of common stock at a public offering price of $10.00 per share which resulted in gross proceeds of $15.0 million ($13.3 million of net proceeds after offering expenses and underwriting discounts). On September 5, 2013, we sold 105,000 additional common shares pursuant to the underwriter’s partial exercise of the over-allotment option which resulted in gross proceeds of $1.1 million ($947,000 of net proceeds after offering expenses and underwriting discounts). Upon completion of the Secondary Offering we repaid indebtedness in the aggregate principal amount of $3.5 million plus accrued interest to DAM and to one of our directors, Andrew Pecora, and an affiliated company NJCCA, all of which indebtedness was due on August 15, 2013.

On October 28, 2013, we sold 3,286,700 shares of common stock, (including the underwriter’s overallotment of 428,700 shares), at a public offering price of $14.00 per share resulting in gross proceeds of $46.0 million (net proceeds of $42.2 million).

Following our IPO, Secondary Offering, and the related debt repayments, we have the following credit facility outstanding:

Wells Fargo Line of Credit. In April 2008, we entered into and thereafter fully utilized a line of credit with Wells Fargo in the amount of $1.5 million for the purposes of meeting operating expenses and working capital needs. In July 2008, we increased the line of credit with Wells Fargo to $3.5 million. In March 2009, we increased the facility to $4.5 million. In July 2009, we increased the facility to $5.5 million and in October 2009, we increased the facility to $6.0 million, which we have fully utilized. In July 2010, we extended the maturity date of the facility from July 31, 2010 to July 31, 2011. In June 2011, we extended the maturity date on the facility to July 31, 2012. In February 2012, we extended the maturity date of the facility to July 31, 2013. In October 2012, we extended the maturity date to April 1, 2014. The interest is computed at LIBOR + 1.75%, which was 2.0% as of December 31, 2012. Mr. Pappajohn, a member of our board of directors, has guaranteed the Wells Fargo Line of Credit.

In general, our primary uses of cash are providing for working capital purposes (which principally represent payroll costs, the purchase of supplies, rent expense and insurance costs) and servicing debt. Our largest source of operating cash flow is cash collections from our customers.

Cash Flows

Our net cash flow from operating, investing and financing activities for the periods below were as follows:

	Nine Months  Ended September 30
	2013			2012
(in thousands)	(unaudited)
Cash provided by (used in):
Operating activities	$	(6,601	)	$	(5,763	)
Investing activities		(176	)		(268	)
Financing activities		15,835			4,517
Net increase (decrease) in cash and cash equivalents	$	9,058		$	(1,514	)

We had cash and cash equivalents of $9.9 million at September 30, 2013, and $820,000 at December 31, 2012.

The $9.1 million increase in cash and cash equivalents for the nine months ended September 30, 2013, was principally the result of the receipt of $5.0 million in proceeds received in our IPO on April 10, 2013 and the receipt of $14.2 in net proceeds from our Secondary Offering offset by $6.6 million of net cash used in operations and the repayment of $3.5 million in indebtedness.

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The $1.5 million decrease in cash and cash equivalents from December 31, 2011, to September 30, 2012, was principally the result of our $5.8 million net cash used in operations and $1.2 million of cash used in financing activities for offering costs offset by $5.7 million in net proceeds from borrowings under new notes payable and warrant exercises.

Cash Used in Operating Activities

Net cash used in operating activities was $6.6 million for the nine months ended September 30, 2013. We used $4.9 million in net cash to run our core operations, which included $571,000 in cash paid for interest. We incurred additional uses of cash as follows: $1.3 for a net decrease in accounts payable, accrued expenses and deferred revenue; $224,000 to increase other current assets which included prepayments for our insurance policies as well as prepayments for consumables and other supplies used to run our operations, and; accounts receivable increased by $766,000. All of these uses of cash were partially offset by the receipt of $664,000 from the sale of certain state NOL carryforwards in January, 2013.

Net cash used in operating activities was $5.8 million for the nine months ended September 30, 2012, consisting primarily of a $2.6 million net loss during the period, which includes $761,000 in cash interest payments, and non-cash income from a change in fair value of warrant liability of $6.4 million offset by non-cash debt costs of $2.5 million and $900,000 in equity and warrant-based non-cash compensatory transactions.

Cash Used in Investing Activities

Net cash used in investing activities was $176,000 for the nine months ended September 30, 2013 and principally resulted from: purchases of fixed assets of $73,000; an increase in our restricted cash related to a $50,000 increase in the Letter of Credit related to our lease; and $53,000 in patent application costs.

Net cash used in investing activities was $268,000 for the nine months ended September 30, 2012 due to an increase in our restricted cash related to a $50,000 increase in the Letter of Credit related to our lease as well as $184,000 in patent application costs.

Cash Provided by Financing Activities

Net cash provided by financing activities was $15.8 million for the nine months ended September 30, 2013, and primarily consisted of the receipt of $19.2 million in net proceeds raised in our IPO and Secondary Offering offset by the repayment of $3.5 million in indebtedness.

Net cash provided by financing activities was $4.5 million for the nine months ended September 30, 2012, principally due to our receipt of $5.1 million in net proceeds from the December 2011 financing transaction which closed in February 2012 and $620,000 in net proceeds from the exercise of certain warrants. We paid $1.2 million in equity issuance costs related to our IPO in the nine months ended September 30, 2012.

Capital Resources and Expenditure Requirements

We expect to continue to incur substantial operating losses in the future. It may take several years, if ever, to achieve positive operational cash flow. Until we can generate a sufficient amount of revenues to finance our cash requirements, which we may never do, we will need to continue to raise additional capital to fund our operations.

To augment our cash position, in August and September of 2013 we sold 1,605,000 shares of common stock in our Secondary Offering at a price of $10.00 per share for net proceeds of $14.2 million. Upon completion of the Secondary Offering we repaid indebtedness in the aggregate principal amount of $3.5 million plus accrued interest. In addition, on October 28, 2013, we sold 3,286,700 shares of common stock, (including the underwriter’s overallotment of 428,700 shares), at a public offering price of $14.00 per share resulting in gross proceeds of $46.0 million (net proceeds of $42.2 million).

We believe our cash resources, prior to our latest offering of common stock, which was consummated on October 28, 2013, were sufficient to satisfy our liquidity requirements at our current level of operations through September 2014 and assuming we are able to secure an extension of the $6.0 million of indebtedness due April 1, 2014 through March 2015. We have commenced negotiations with Wells Fargo and with Mr. Pappajohn, who serves as a guarantor for such outstanding indebtedness, to further extend the maturity date. However, there can be no assurances that we will be successful. If we are not successful in obtaining an extension, we expect that we would use a portion of the net proceeds received from our latest offering of common stock, which was consummated on October 28, 2013, to repay that debt. Including the funds raised through the offering of common stock which was consummated on October 28, 2013, we believe that our current cash resources are sufficient to satisfy our liquidity requirements for at least two years even if we are unable to secure an extension of the Wells Fargo debt.

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We expect our operating expenses, particularly those relating to sales and marketing, to increase as we use a portion of the net proceeds received from our latest offering of common stock, which was consummated on October 28, 2013, to hire additional sales and marketing personnel and increase sales and marketing activities.

Our forecast of the period of time through which our current financial resources will be adequate to support our operations and the costs to support our general and administrative, sales and marketing and research and development activities are forward-looking statements and involve risks and uncertainties. Actual results could vary materially and negatively as a result of a number of factors, including:

• our ability to secure financing and the amount thereof;

• the timing of and the costs involved in obtaining regulatory approvals and clearances for our tests;

• the costs of operating and enhancing our laboratory facilities;

• if our new diagnostic tests are approved, our commercialization activities;

• the scope, progress and results of our research and development programs;

• the scope, progress, results, costs, timing and outcomes of the clinical trials of our diagnostic tests;

• our ability to manage the costs for manufacturing our microarrays and probes;

• the costs of maintaining, expanding and protecting our intellectual property portfolio, including potential litigation costs and liabilities;

• our ability to obtain adequate reimbursement from governmental and other third-party payors for our tests and services;

• revenues received from sales of our tests, if approved by FDA and accepted by the market;

• the costs of additional general and administrative personnel, including accounting and finance, legal and human resources, as a result of becoming a public company;

• the costs of developing our anticipated internal sales, marketing and distribution capabilities;

• our ability to collect revenues; and

• other risks discussed in the section entitled “Risk Factors”.

We expect that our operating expenses and capital expenditures will increase in the future as we expand our business. We plan to increase our sales and marketing headcount to promote our new clinical tests and services and to expand into new geographies and to increase our research and development headcount to develop and validate the proprietary tests currently in our pipeline, to expand our pipeline and to perform work associated with our research collaborations. We also expect that our costs of collaborations with research and academic institutions will increase in the future as such institutions begin to view us as a commercial company. For example, in 2011 we entered into an affiliation agreement to form a joint venture with the Mayo Foundation for Medical Education and Research pursuant to which we made an initial $1.0 million capital contribution in October 2013 and expect to make additional capital contributions of up to $5.0 million over the next two and a half years, of which $4.0 million is subject to the joint venture entity’s achievement of certain operational milestones. Until we can generate a sufficient amount of revenues to finance our cash requirements, which we may never do, we may need to raise additional capital to fund our operations.

We may raise additional capital to fund our current operations, to repay certain outstanding indebtedness and to fund expansion of our business to meet our long-term business objectives through public or private equity offerings, debt financings, borrowings or strategic partnerships coupled with an investment in our company or a combination thereof. If we raise additional funds through the issuance of convertible debt securities, or other debt securities, these securities could be secured and could have rights senior to those of our common stock. In addition, any new debt incurred by the Company could impose covenants that restrict our operations. The issuance of any new equity securities will also dilute the interest of our current stockholders. Given the risks associated with our business, including our unprofitable operating history and our ability to develop additional proprietary tests, additional capital may not be available when needed on acceptable terms, or at all. If adequate funds are not available, we will need to curb our expansion plans or limit our research and development activities, which would have a material adverse impact on our business prospects and results of operations.

Income Taxes

Over the past several years we have generated operating losses in all jurisdictions in which we may be subject to income taxes. As a result, we have accumulated significant net operating losses and other deferred tax assets. Because of our history of losses and the uncertainty as to the realization of those deferred tax assets, a full valuation allowance has been recognized. We do not expect to report a provision for income taxes until we have a history of earnings, if ever, that would support the realization of our deferred tax assets.

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Off-Balance Sheet Arrangements

Since inception, we have not engaged in any off balance sheet activities as defined in Item 303(a)(4) of Regulation S-K.

Critical Accounting Policies and Significant Judgment and Estimates

Our management’s discussion and analysis of financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with U.S. GAAP. The preparation of our consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates based on historical experience and make various assumptions, which management believes to be reasonable under the circumstances, which form the basis for judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Section 107 of the JOBS Act provides that an “emerging growth company can take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act for complying with new or revised accounting standards. In other words, an “emerging growth company” can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. However, we are choosing to “opt out” of such extended transition period, and as a result, we will comply with new or revised accounting standards on the relevant dates on which adoption of such standards is required for non-emerging growth companies. Section 107 of the JOBS Act provides that our decision to opt out of the extended transition period for complying with new or revised accounting standards is irrevocable.

The notes to our audited consolidated financial statements, which are included in our Prospectus, contain a summary of our significant accounting policies. We consider the following accounting policies critical to the understanding of the results of our operations:

• Revenue recognition;

• Accounts receivable and bad debts;

• Stock-based compensation; and

• Warrant liability.

Forward-Looking Statements

Forward-looking statements include all statements that are not historical facts. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “could,” “would,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “projects,” “predicts,” “potential,” or the negative of those terms, and similar expressions and comparable terminology intended to identify forward-looking statements. These statements reflect our current views with respect to future events and are based on assumptions and subject to risks and uncertainties including those set forth below under Part II, Item 1A, “Risk Factors” in this quarterly report on Form 10-Q. Given these uncertainties, you should not place undue reliance on these forward-looking statements. These forward-looking statements represent our estimates and assumptions only as of the date of this quarterly report on Form 10-Q and, except as required by law, we undertake no obligation to update or review publicly any forward-looking statements, whether as a result of new information, future events or otherwise after the date of this quarterly report on Form 10-Q. You should read this quarterly report on Form 10-Q and the documents referenced in this quarterly report on Form 10-Q and filed as exhibits completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements. Such statements may include, but are not limited to, statements concerning the following:

• our ability to achieve profitability by increasing sales of our laboratory tests and services and to continually develop and commercialize novel and innovative genomic-based diagnostic tests and services for cancer patients;

• our ability to raise additional capital to meet our liquidity short-term and long-term liquidity needs;

• our ability to clinically validate our pipeline of genomic microarray tests currently in development;

• our ability to execute on our marketing and sales strategy for our genomic tests and gain acceptance of our tests in the market;

• our ability to keep pace with a rapidly advancing market;

• our ability to satisfy U.S. (including FDA) and international regulatory requirements with respect to our tests and services, many of which are new and still evolving;

• our ability to obtain reimbursement from governmental and other third-party payors for our tests and services;

• competition from clinical laboratory services companies, genomic-based diagnostic tests currently available or new tests that may emerge;

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• our ability to maintain our clinical collaborations and enter into new collaboration agreements with highly regarded organizations in the cancer field so that, among other things, have access to thought leaders in the field and to a robust number of samples to validate our genomic tests;

• our ability to maintain our present customer base and retain new customers;

• potential product liability or intellectual property infringement claims;

• our dependency on third-party manufacturers to supply or manufacture our products;

• our ability to attract and retain a sufficient number of scientists, clinicians, sales personnel and other key personnel with extensive experience in oncology, who are in short supply;

• our ability to obtain or maintain patents or other appropriate protection for the intellectual property in our proprietary tests and services;

• our dependency on the intellectual property licensed to us or possessed by third parties;

• our ability to expand internationally and launch our tests in emerging markets, such as India and Brazil; and

• our ability to adequately support future growth

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Our exposure to market risk is limited to our cash, cash equivalents and marketable securities, all of which have maturities of one year or less. The goals of our investment policy are preservation of capital, fulfillment of liquidity needs and fiduciary control of cash and investments. We also seek to maximize income from our investments without assuming significant risk. To achieve our goals, we maintain a portfolio of cash equivalents and investments in a variety of securities that management believes to be of high credit quality. The securities in our investment portfolio are not leveraged, are classified as available for sale and are, due to their short-term nature, subject to minimal interest rate risk. We currently do not hedge interest rate exposure. Because of the short-term maturities of our investments, we do not believe that an increase in market rates would have a material negative impact on the value of our investment portfolio.

We do not have any material foreign currency exposure.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed by the issuer in the reports that it files or submits under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, and that such information is accumulated and communicated to the issuer’s management, including the principal executive officer and principal financial officer, or persons performing similar functions, as appropriate, to allow timely decisions regarding required disclosure. Any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. As of September 30, 2013, we carried out an evaluation, under the supervision and with the participation of our management, including our principal executive officer and our principal financial officer, of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended. Based on this evaluation, our principal executive officer and our principal financial officer concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of September 30, 2013.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during the three months ended September 30, 2013 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II — OTHER INFORMATION

Item 1. Legal Proceedings

None.

Item 1A. Risk Factors

In addition to the other information set forth in this report, you should carefully consider the factors discussed in Part II, “Item 1A. Risk Factors” in our Quarterly Report on Form 10-Q for the six months ended June 30, 2013, which could materially affect our business, financial condition or future results. The risks described in our Quarterly Report on Form 10-Q may not be the only risks facing the Company. Additional risks and uncertainties not currently known to the Company or that the Company currently deems to be immaterial also may materially adversely affect the Company’s business, financial condition and/or operating results.

Except as set forth below, there were no material changes to the risk factors previously disclosed in our Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on August 5, 2013.

Risks Relating to Our Financial Condition and Common Stock

There has been a limited trading market for our common stock.

We only recently received approval to list our common stock on The NASDAQ Capital Market. Prior to August 2013, our common stock had been quoted on the OTCQB, and prior to our initial public offering in April 2013, there was no trading activity in our common stock. Although the NASDAQ listing improved the liquidity of our common stock, such listing has been of limited duration and no assurance can be given that recent levels of trading activity will continue. A lack of an active market may impair our stockholders’ ability to sell shares of our common stock at the time such shareholders wish to sell them or at a price that they consider reasonable. The lack of an active market may also reduce the fair market value of our common stock. An inactive market may also impair our ability to raise capital by selling shares of capital stock and may impair our ability to acquire other companies or technologies by using our common stock as consideration.

Our failure to meet the continued listing requirements of The NASDAQ Capital Market could result in a de-listing of our common stock.

If we fail to satisfy the continued listing requirements of The NASDAQ Capital Market, such as the corporate governance requirements or the minimum closing bid price requirement, NASDAQ may take steps to de-list our common stock. Such a de-listing would likely have a negative effect on the price of our common stock and would impair our stockholders’ ability to sell our common stock when such shareholders wish to do so. In the event of a de-listing, we would take actions to restore our compliance with NASDAQ’s listing requirements, but we can provide no assurance that any such action taken by us would allow our common stock to become listed again, stabilize the market price or improve the liquidity of our common stock, prevent our common stock from dropping below the NASDAQ minimum bid price requirement or prevent future non-compliance with NASDAQ’s listing requirements.

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Item 2. Unregistered Sales of Equity Securities and Use of Proceeds from Sales of Registered Securities

Recent Sales of Unregistered Securities

On July 6, 2013, a warrant holder exercised a warrant to purchase 6,000 shares of common stock at an exercise price of $4.00 per share using the net issuance exercise method whereby 2,072 shares were surrendered as payment in full of the exercise price resulting in a net issuance of 3,928 shares.

On July 8, 2013, the Company received $96,000 from shareholders who exercised warrants to purchase 24,000 shares of common stock at $4.00 per share.

On September 30, 2013, warrant holders exercised warrants to purchase 30,034 shares of common stock at an exercise price of $4.00 per share using the net issuance exercise method whereby 14,313 shares were surrendered as payment in full of the exercise price resulting in a net issuance of 15,721 shares.

Use of Proceeds

IPO

In connection with our IPO, we offered and sold 690,000 shares of common stock (including the over allotment option) at a price of $10.00 per share. The offer and sale of the shares in the IPO were registered under the Securities Act of 1933, as amended, pursuant to a registration statement on Form S-1 effective on April 4, 2013. The underwriters in the offering were Aegis Capital Corp and Feltl and Company. After deducting underwriting discounts and commissions, transaction fees and offering related expenses not previously paid, our net proceeds from the initial public offering (including the over allotment option) were approximately $5 million.

In connection with the offering, we paid underwriting discounts, expenses and commissions of approximately $637,000, and paid approximately $1.3 million in offering expenses.

From the date of our IPO until September 30, 2013, we used all of the net proceeds from our IPO. The net proceeds were used to fund our cash losses from operations (approximately $6.0 million) and approximately $176,000 was used for investing activities, including approximately $73,000 for the purchase of fixed assets and $50,000 to increase the security deposit for our landlord.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

None.

Item 5. Other Information

None.

Item 6. Exhibits

See the Index to Exhibits immediately following the signature page hereto, which Index to Exhibits is incorporated herein by reference.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Cancer Genetics, Inc.
	(Registrant)
Date: November 13, 2013	/s/    Panna L. Sharma
	Panna L. Sharma
	President and Chief Executive Officer (Duly authorized signatory)
Date: November 13, 2013	/s/    Elizabeth Czerepak
	Elizabeth Czerepak
	Chief Financial Officer (Principal Financial and Accounting Officer)

36

INDEX TO EXHIBITS

Exhibit No.	Description
10.1	Underwriting Agreement, dated August 13, 2013, by and between Cancer Genetics, Inc. and Aegis Capital Corp., as Representative of the Several Underwriters, filed as Exhibit 1.1 to Form 8-K filed on August 14, 2013 and incorporated herein by reference
10.2	Form of Underwriting Agreement between Cancer Genetics, Inc. and Aegis Capital Corp., as Representative of the Several Underwriters, filed as Exhibit 1.1 to Form S-1/A filed on October 21, 2013 (File No. 333-191633) and incorporated herein by reference
31.1	Certification of Principal Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) promulgated under The Securities Exchange Act of 1934, as amended
31.2	Certification of Principal Financial Officer pursuant to Rules 13a-14(a) and 15d-14(a) promulgated under The Securities Exchange Act of 1934, as amended
32.1	Certifications of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of The Sarbanes-Oxley Act of 2002
32.2	Certifications of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of The Sarbanes-Oxley Act of 2002
101	The following materials from the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2013, formatted in XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheet at December 31, 2012 and September 30, 2013 (unaudited), (ii) Consolidated Statements of Operations and Comprehensive Loss for the three and nine month periods ended September 30, 2012 and 2013, (iii) Consolidated Statements of Cash Flows for the nine month period ended September 30, 2012 (unaudited) and (iv) Notes to Consolidated Financial Statements (unaudited)

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EX-31.1

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Panna L. Sharma, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Cancer Genetics, Inc. (the “Registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4. The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

5. The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date: November 13, 2013

/s/ Panna L. Sharma

Panna L. Sharma

President, Chief Executive Officer and Director

(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Elizabeth A. Czerepak, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Cancer Genetics, Inc. (the “Registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4. The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

5. The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date: November 13, 2013

/s/ Elizabeth A. Czerepak

Elizabeth A. Czerepak

Chief Financial Officer

(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of Cancer Genetics, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Panna L. Sharma, President, Chief Executive Officer and Director of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 13, 2013

/s/ Panna L. Sharma

Panna L. Sharma

President, Chief Executive Officer and Director

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Report or as a separate disclosure document.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of Cancer Genetics, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Elizabeth A. Czerepak, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 13, 2013

/s/ Elizabeth A. Czerepak

Elizabeth A. Czerepak

Chief Financial Officer

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Report or as a separate disclosure document.

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Joint Venture Agreement

9 Months Ended

Sep. 30, 2013

Equity Method Investments And Joint Ventures [Abstract]

Joint Venture Agreement

Note 11. Joint Venture Agreement

In November 2011, we entered into an affiliation agreement with the Mayo Foundation for Medical Education and Research (“Mayo”), subsequently amended. Under the agreement, we formed a joint venture with Mayo in May 2013 to focus on developing oncology diagnostic services and tests utilizing next generation sequencing. The joint venture will take the form of a limited liability company, with each party initially holding fifty percent of the issued and outstanding membership interests of the new entity (the “JV”). The agreement also requires aggregate total capital contributions by us of up to $5.0 million over the next two and a half years, with $4.0 million of such amount subject to the joint venture achieving certain operational milestones. In exchange for its membership interests, Mayo’s capital contribution will take the form of cash, staff, services, hardware and software resources, laboratory space and instrumentation, the fair market value of which will be approximately equal to $6 million. Mayo’s continued contribution will also be conditioned upon the JV’s achievement of certain milestones. The operation of the joint venture may also divert management time from operating our business. No assurances can be given that we will be able to fully fund the joint venture agreement, or that, even if funded, the joint venture will ever achieve the research, development and commercial objectives currently contemplated by the parties, such as the discovery and commercialization of new diagnostic tests utilizing next-generation sequencing. If the development efforts of the joint venture do not result in commercially successful tests or services, it will have an adverse effect on our business, financial condition and results of operations.

Subsequent Event

In exchange for the membership interests in the JV, we made an initial capital contribution of $1.0 million in October 2013. In addition, in October 2013, we issued 10,000 shares of our common stock to Mayo pursuant to our affiliation agreement with Mayo.

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Fair Value of Warrants - Summary of Derivative Warrant Activity (Detail) (USD $)	1 Months Ended	9 Months Ended
	Apr. 10, 2013	Sep. 30, 2013
Class of Warrant or Right [Line Items]
Beginning balance		$ 12,549,000
Fair value of warrants issued		268,000
Reclassification to equity in IPO	(7,200,000)	(7,170,000)
Warrants Exercised		(373,000)
Change in fair value of warrants		(4,096,000)
Ending balance		1,178,000
Series B Preferred Stock [Member]
Class of Warrant or Right [Line Items]
Beginning balance		230,000
Fair value of warrants issued
Reclassification to equity in IPO
Warrants Exercised		(373,000)
Change in fair value of warrants		422,000
Ending balance		279,000
Debt Guarantee [Member]
Class of Warrant or Right [Line Items]
Beginning balance		5,679,000
Fair value of warrants issued
Reclassification to equity in IPO		(2,514,000)
Warrants Exercised
Change in fair value of warrants		(3,026,000)
Ending balance		139,000
Consulting [Member]
Class of Warrant or Right [Line Items]
Beginning balance		147,000
Fair value of warrants issued
Reclassification to equity in IPO		(108,000)
Warrants Exercised
Change in fair value of warrants		(36,000)
Ending balance		3,000
Financing [Member]
Class of Warrant or Right [Line Items]
Beginning balance		6,493,000
Fair value of warrants issued		268,000
Reclassification to equity in IPO		(4,548,000)
Warrants Exercised
Change in fair value of warrants		(1,456,000)
Ending balance		$ 757,000

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Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]
Revenue	$ 1,705,146	$ 1,242,604	$ 4,755,462	$ 3,225,831
Cost of revenues	1,211,384	971,557	3,560,678	2,880,242
Gross profit	493,762	271,047	1,194,784	345,589
Operating expenses:
Research and development	433,525	501,431	1,384,122	1,551,672
Sales and marketing	442,665	334,147	1,274,620	1,049,996
General and administrative	1,297,801	1,145,649	4,259,175	3,475,301
Total operating expenses	2,173,991	1,981,227	6,917,917	6,076,969
Loss from operations	(1,680,229)	(1,710,180)	(5,723,133)	(5,731,380)
Other (expense) income:
Interest expense	(356,442)	(1,312,232)	(2,039,750)	(3,260,010)
Interest income	3,295		4,649
Debt conversion costs			(6,849,830)
Change in fair value of warrant liability	(1,033,000)	3,334,000	4,096,000	6,370,000
Total other (expense) income	(1,386,147)	2,021,768	(4,788,931)	3,109,990
(Loss) income before income taxes	(3,066,376)	311,588	(10,512,064)	(2,621,390)
Income tax provision (benefit)			(663,900)
Net (loss) income	$ (3,066,376)	$ 311,588	$ (9,848,164)	$ (2,621,390)
Basic net (loss) income per share	$ (0.61)	$ 0.23	$ (2.84)	$ (1.96)
Diluted net loss per share	$ (0.61)	$ (2.23)	$ (4.02)	$ (6.66)
Basic Weighted Average Shares Outstanding	5,055,591	1,346,124	3,463,730	1,340,530
Diluted Weighted Average Shares Outstanding	5,055,591	1,355,678	3,468,627	1,350,084

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Notes Payable and Lines of Credit

9 Months Ended

Sep. 30, 2013

Debt Disclosure [Abstract]

Notes Payable and Lines of Credit

Note 4. Notes Payable and Lines of Credit

Below is a summary of our short-term and long-term debt obligations as of September 30, 2013 and December 31, 2012:

	September 30, 2013		December 31, 2012
December 2011 Financing Transaction	$	—	$	4,000,000
Secured Note Payable, short-term		43,622		79,867
Unamortized debt discount		—		(243,300	)
Notes Payable, Current Portion	$	43,622	$	3,836,567
Lines of Credit, Current Portion	$	6,000,000	$	3,000,000
Unamortized Debt Discount		—		(128,800	)
Lines of Credit, Current Portion	$	6,000,000	$	2,871,200
December 2011 Financing Transaction	$	—	$	2,000,000
2012 Convertible Debt Financing Transaction		—		3,000,000
December 2012 Bridge Financing Transaction		—		1,000,000
Other Note Payable		—		100,000
Secured Note Payable		—		22,298
Unamortized debt discount		—		(3,681,615	)
Notes Payable, Long-Term	$	—	$	2,440,683
Lines of Credit, Long-Term	$	—	$	6,000,000

Business Line of Credit — Wells Fargo

At September 30, 2013 and December 31, 2012, we have fully utilized a line of credit with Wells Fargo Bank which provides for maximum borrowings of $6 million. Interest on the line of credit is due monthly equal to 1.75% above the Daily One Month LIBOR rate (2.0% at September 30, 2013). The line of credit requires the repayment of principal, and any unpaid interest, in a single payment due upon maturity. The line of credit matures April 1, 2014, is guaranteed by Mr. Pappajohn, and is collateralized by a first lien on all of our assets including the assignment of our approved and pending patent applications.

Secured Note Payable

On September 25, 2012, we entered into a note payable secured by lab equipment due March 25, 2014. The note requires monthly payments of principal and interest at 18% per annum. At September 30, 2013, and December 31, 2012, $43,622 and $102,165 was outstanding under the note.

Conversion of Debt concurrent with IPO

On April 10, 2013, we completed our IPO and converted the following indebtedness into shares of common stock at the IPO price of $10.00 per share:

	Converted Amount		Common Shares
December 2011 Financing Transaction	$	4,500,000		450,000
2012 Convertible Debt Financing Transaction		3,000,000		300,000
December 2012 Bridge Financing Transaction		1,000,000		100,000
Business Lines of Credit (DAM)		1,000,000		100,000
Other Note Payable and accrued interest		134,300		13,430
	$	9,634,300		963,430

In connection with the conversion of debt into common stock, we expensed the applicable remaining debt discounts of $3.5 million, financing fees of $419,000 and a contingently recognizable beneficial conversion feature in the converted debt of $3 million.

December 2011 Financing Transaction

At September 30, 2013 and December 31, 2012, $0.0 and $6.0 million, respectively, was outstanding under a Credit Agreement dated as of December 21, 2011, as amended and restated as of February 13, 2012.

The Credit Agreement was with John Pappajohn and Andrew Pecora (indirectly through an investment company), both members of our board of directors, and NNJCA Capital, LLC (“NNJCA”), a limited liability company of which Dr. Pecora is a member. Mr. Pappajohn originally provided $4.0 million of financing, NNJCA originally provided $1.5 million of financing and Dr. Pecora provided $500,000 of financing under the Credit Agreement. On April 10, 2013, Mr. Pappajohn converted $4.0 million and NNJCA converted $500,000 into 450,000 shares of our common stock at the IPO price of $10.00 per share concurrent with our IPO. The remaining outstanding balance of $1.5 million was repaid on August 19, 2013 using a portion of the proceeds from our Secondary Offering.

The loan bore an annual interest rate equal to the prime rate plus 6.25% (9.50% at August 19, 2013). We accrued a fee due to Pecora and NNJCA of $130,000 of which $32,667 was paid upon conversion of the notes and the remaining balance paid on August 19, 2013. The loan was secured by all of our assets, including our intellectual property, subject to prior first and second liens in favor of Wells Fargo Bank and DAM Holdings, LLC (“DAM”).

2012 Convertible Debt Financing Transaction

On April 10, 2013, the entire $3 million outstanding under a Restated Credit Agreement dated as of August 27, 2012, as amended and restated as of October 17, 2012, ($1,750,000 provided by Mr. Pappajohn and $1,250,000 provided by Mr. Oman) was converted into 300,000 shares of common stock at the IPO price of $10 per share.

Through April 10, 2013, the loan bore interest at the prime rate plus 6.25% (9.50% at April 10, 2013). In February 2013, because we did not consummate our IPO within 181 days of funding, the lenders received ten-year warrants to purchase an aggregate of 7,059 shares of our common stock (issued in proportion to their respective funding amounts) with an exercise price equal to the lesser of (i) $42.50 per share or (ii) the IPO price per share, which was $10.00. Pursuant to a subsequent agreement, described below, the warrants held by Mr. Pappajohn have an exercise price of $15.00 per share. The warrant exercise price is subject to standard anti-dilution protection in the event of stock splits, stock dividends, stock combinations, reclassifications and the like.

December 2012 Bridge Financing Transaction

On April 10, 2013, the entire $1 million outstanding under a credit agreement dated as of December 7, 2012, (all of which was provided by Mr. Pappajohn), was converted into 100,000 shares of common stock at the IPO price of $10.00 per share.

Through April 10, 2013, the loan bore interest at the prime rate plus 6.25% (9.50% at April 10, 2013). The credit agreement required Mr. Pappajohn to convert the outstanding principal balance into shares of our common stock at a conversion price equal to the lesser of $42.50 or our IPO price and as a result all debt was converted on April 10, 2013 at the IPO price of $10.00 per share. In March 2013, Mr. Pappajohn received ten-year warrants to purchase an aggregate of 2,353 shares of our common stock with an exercise price equal to the lesser of (i) $42.50 per share or (ii) the IPO or merger price per share, because we did not consummate our IPO by March 7, 2013. Mr. Pappajohn subsequently agreed that if our final IPO price was below $15.00, there would be no further adjustment to the price or number of shares covered by the warrants held by him. The warrant exercise price is subject to standard anti-dilution protection in the event of stock splits, stock dividends, stock combinations, reclassifications and the like.

Business Line of Credit – DAM

At September 30, 2013 and December 31, 2012, $0.0 million and $3 million, respectively, were outstanding under a line of credit agreement with DAM.

On April 10, 2013, $1 million of indebtedness under this line was converted into 100,000 shares of common stock at the IPO price of $10 per share. The remaining outstanding balance of $2.0 million was repaid on August 19, 2013 using a portion of the proceeds from our Secondary Offering.

Pursuant to an intercreditor agreement between Mr. Pappajohn and DAM (the “Intercreditor Agreement”), we were required to use the proceeds from our IPO to repay the full amount outstanding under the DAM Loan Agreement before any proceeds can be used to repay any debt outstanding under the Wells Fargo Line of Credit. On February 13, 2013, DAM agreed to convert $1.0 million which had been due April 1, 2013 of outstanding indebtedness into shares of common stock at the IPO price per share. We had accrued a fee due to DAM of $52,500 which was paid upon conversion of the line of credit. On March 19, 2013, the maturity date for $2 million of the DAM debt was extended to mature on August 15, 2013. The DAM debt bore an annual interest rate of 10% payable in equal monthly installments.

Other Note Payable

At December 31, 2012, notes payable included a $100,000 note payable to Dr. Chaganti, our Chairman of the Board. Accrued interest at December 31, 2012 was approximately $34,300. The note bore interest at 8.5% per annum. On April 10, 2013, the note and accrued interest converted into 13,430 shares of common stock at the IPO price of $10.00 per share.

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Notes Payable and Lines of Credit (Tables)

9 Months Ended

Sep. 30, 2013

Debt Disclosure [Abstract]

Summary of Short-Term and Long-Term Debt Obligations

Below is a summary of our short-term and long-term debt obligations as of September 30, 2013 and December 31, 2012:

	September 30, 2013		December 31, 2012
December 2011 Financing Transaction	$	—	$	4,000,000
Secured Note Payable, short-term		43,622		79,867
Unamortized debt discount		—		(243,300	)
Notes Payable, Current Portion	$	43,622	$	3,836,567
Lines of Credit, Current Portion	$	6,000,000	$	3,000,000
Unamortized Debt Discount		—		(128,800	)
Lines of Credit, Current Portion	$	6,000,000	$	2,871,200
December 2011 Financing Transaction	$	—	$	2,000,000
2012 Convertible Debt Financing Transaction		—		3,000,000
December 2012 Bridge Financing Transaction		—		1,000,000
Other Note Payable		—		100,000
Secured Note Payable		—		22,298
Unamortized debt discount		—		(3,681,615	)
Notes Payable, Long-Term	$	—	$	2,440,683
Lines of Credit, Long-Term	$	—	$	6,000,000

Conversion of Indebtedness into Shares of Common Stock

On April 10, 2013, we completed our IPO and converted the following indebtedness into shares of common stock at the IPO price of $10.00 per share:

	Converted Amount		Common Shares
December 2011 Financing Transaction	$	4,500,000		450,000
2012 Convertible Debt Financing Transaction		3,000,000		300,000
December 2012 Bridge Financing Transaction		1,000,000		100,000
Business Lines of Credit (DAM)		1,000,000		100,000
Other Note Payable and accrued interest		134,300		13,430
	$	9,634,300		963,430

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Joint Venture Agreement - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified						9 Months Ended	1 Months Ended	9 Months Ended
	Sep. 30, 2013	Apr. 10, 2013	Dec. 31, 2012	Oct. 31, 2013 Subsequent Event	Oct. 28, 2013 Subsequent Event	Sep. 30, 2013 Joint Venture Agreement [Member]	Oct. 31, 2013 Joint Venture Agreement [Member] Subsequent Event	Sep. 30, 2013 Joint Venture Agreement [Member] Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Entered into agreement date						Nov. 30, 2011
Percentage of outstanding membership interests in joint venture						50.00%
Capital contribution in exchange of membership interests						$ 4.0	$ 1.0	$ 5.0
Fair value of capital contribution in joint venture						$ 6
Common stock, shares issued	5,965,340	690,000	1,349,936	10,000	3,286,700

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Related Party Transactions

9 Months Ended

Sep. 30, 2013

Related Party Transactions [Abstract]

Related Party Transactions

Note 12. Related Party Transactions

John Pappajohn, a member of the Board of Directors and stockholder, personally guarantees our revolving line of credit with Wells Fargo Bank. As consideration for his guarantee, as well as each of the eight extensions of this facility through September 30, 2013, Mr. Pappajohn received warrants to purchase an aggregate of 1,051,506 shares of common stock of which Mr. Pappajohn assigned warrants to purchase 284,000 shares of common stock to certain third parties. Warrants to purchase 395,825 shares of common stock have been exercised by Mr. Pappajohn through September 30, 2013. After adjustment pursuant to the terms of the warrants in conjunction with our IPO, the number of these warrants outstanding retained by Mr. Pappajohn was 585,645 at $15.00 per share and 44,288 at $4.00 per share.

In addition, John Pappajohn also had loaned us an aggregate of $6,750,000. In connection with these loans, Mr. Pappajohn received warrants to purchase an aggregate of 202,630 shares of common stock. After adjustment pursuant to the terms of the warrants in conjunction with our IPO, the number of warrants outstanding was 436,079 at $15.00 per share at September 30, 2013.

Andrew Pecora (indirectly through an investment company), a member of our board of directors, and NNJCA, a limited liability company of which Dr. Pecora is a member originally provided $500,000 and $1.5 million of financing, respectively, under a Credit Agreement dated as of December 21, 2011, as amended and restated as of February 13, 2012. On April 10, 2013, NNJCA converted $500,000 of its outstanding indebtedness into 50,000 shares of our common stock at the IPO price of $10.00 per share concurrent with our IPO. On August 19, 2013, the remaining principal under these notes were repaid to Dr. Pecora and NNJCA using a portion of the proceeds from our Secondary Offering.

The loan bore an annual interest rate equal to the prime rate plus 6.25% (9.50% at September 30, 2013). We accrued a fee due to Pecora and NNJCA of $130,000 of which $32,667 was paid upon conversion of the notes and the remaining balance paid on August 19, 2013.

On May 19, 2006, we issued a convertible promissory note in favor of our Chairman and founder, Dr. Chaganti, the holder, which obligated us to pay the holder the sum of $100,000, together with interest at the rate of 8.5% per annum, due April 1, 2014. Interest expense for the nine months ended September 30, 2013 and 2012 totaled $2,357 and $6,300, respectively. (see Note 4 for additional information regarding the conversion of the promissory note into common stock concurrent with our IPO on April 10, 2013.). Pursuant to a consulting and advisory agreement, Dr. Chaganti also received options to purchase a total of 36,000 shares of common stock at price of $10.00 per share which vested over a two year period. Total non-cash stock-based compensation recognized under the consulting agreement for the nine months ended September 30, 2013 and 2012 were $76,220 and $367,050, respectively. Additionally, we entered into a three-year consulting agreement with Dr. Chaganti expiring on September 30, 2013 pursuant to which Dr. Chaganti received $5,000 per month for providing consulting and technical support services. Total expenses for each of the nine month periods ended September 30, 2013 and 2012 were $45,000.

On August 15, 2010, we entered into a two-year consulting agreement with Dr. Pecora, a member of our board of directors, pursuant to which Dr. Pecora received $5,000 per month for providing consulting and advisory services. Dr. Pecora also received stock options under the consulting and advisory agreement to purchase a total of 12,000 shares of common stock at price of $10.00 per share which vested over a two year period. The cash component of this agreement was terminated by mutual consent in 2011. Total non-cash stock-based compensation recognized under the consulting agreement for the nine months ended September 30, 2013 and 2012 were $0 and $142,740, respectively.

In August 2010, we entered into a consulting agreement with Equity Dynamics, Inc., an entity controlled by John Pappajohn, pursuant to which Equity Dynamics, Inc. receives a monthly fee of $10,000 plus reimbursement of expenses. Total consulting fees for each of the nine month periods ended September 30, 2013 and 2012 were $90,000. As of September 30, 2013, we owed Equity Dynamics, Inc. $20,000.

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Warrants - Additional Information (Detail) (USD $)	0 Months Ended		1 Months Ended				9 Months Ended		0 Months Ended			1 Months Ended	9 Months Ended		1 Months Ended		9 Months Ended		1 Months Ended
	Sep. 27, 2013	Sep. 10, 2013	Jul. 06, 2013	Jul. 08, 2013	Apr. 29, 2013	Apr. 10, 2013	Sep. 30, 2013	Dec. 31, 2012	Oct. 28, 2013 Subsequent Event	Oct. 28, 2013 Minimum [Member] Subsequent Event	Oct. 28, 2013 Maximum [Member] Subsequent Event	Feb. 22, 2013 2012 Convertible Debt Financing Transaction [Member]	Sep. 30, 2013 2012 Convertible Debt Financing Transaction [Member]	Sep. 30, 2013 December 2012 Bridge Financing Transaction [Member]	Feb. 11, 2013 John Pappajohn [Member]	Feb. 22, 2013 John Pappajohn [Member] 2012 Convertible Debt Financing Transaction [Member]	Sep. 30, 2013 John Pappajohn [Member] December 2012 Bridge Financing Transaction [Member]	Feb. 11, 2013 Certain Warrant Holders [Member]	Feb. 22, 2013 Mr. Oman [Member] 2012 Convertible Debt Financing Transaction [Member]
Class of Warrant or Right [Line Items]
Warrants granted														2,353		4,118			2,941
Fair value of warrants at the date of issue												$ 221,000		$ 47,000
Term of warrants												10 years		10 years
Price per share on equity offering						$ 10.00						$ 10.00		$ 10.00
Warrants exercise price							$ 12.30						$ 42.50	$ 42.50		$ 15.00
Maximum IPO price description																	If our final IPO price was below $15.00, there would be no further adjustment to the price or number of shares covered by the warrants held by him.
Final IPO price to determine exercise price of the warrants															$ 15.00
Adjusted exercise price of warrants on initial public offerings															$ 15.00
Warrants to purchase common stock, issued																		114,030
Shares issuable on exercise of warrants							838,889
Number of warrants effected with adjusted exercise price						1,656,860	1,656,860
Proceeds form warrants exercised				$ 96,000	$ 96,000
Warrants exercised to purchase common stock			6,000	24,000	24,000		30,034		33,868
Common stock per share value on warrant exercised			$ 4.00	$ 4.00	$ 4.00		$ 10.00			$ 10.00	$ 14.10
Warrants, surrendered			2,072				14,313		23,188
Warrants issued			3,928				9,412		10,680
Warrant outstanding							1,843,582	1,102,176
Extended expiration date of warrant	11 days	17 days

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Related Party Transactions - Additional Information (Detail) (USD $)	1 Months Ended	9 Months Ended		1 Months Ended	9 Months Ended			1 Months Ended	9 Months Ended		1 Months Ended			1 Months Ended	9 Months Ended		1 Months Ended	9 Months Ended
	Apr. 10, 2013	Sep. 30, 2013 Extension	Apr. 10, 2013 IPO [Member]	Sep. 30, 2013 Consulting and Advisory Agreement [Member]	Sep. 30, 2013 Consulting and Advisory Agreement [Member]	Sep. 30, 2012 Consulting and Advisory Agreement [Member]	Sep. 30, 2013 Financial Guarantee [Member]	Apr. 10, 2013 John Pappajohn [Member]	Sep. 30, 2013 John Pappajohn [Member]	Sep. 30, 2013 John Pappajohn [Member] Financial Guarantee [Member]	Apr. 10, 2013 NNJCA [Member]	Sep. 30, 2013 NNJCA [Member]	Sep. 30, 2013 NNJCA [Member] Financial Guarantee [Member]	Aug. 15, 2010 Dr. Pecora [Member]	Sep. 30, 2013 Dr. Pecora [Member]	Sep. 30, 2012 Dr. Pecora [Member]	Aug. 31, 2010 Equity Dynamics, Inc. [Member]	Sep. 30, 2013 Equity Dynamics, Inc. [Member]	Sep. 30, 2012 Equity Dynamics, Inc. [Member]	Sep. 30, 2013 Dr. Chaganti [Member]	Sep. 30, 2012 Dr. Chaganti [Member]
Related Party Transaction [Line Items]
Number of revolving line of credit extensions facility		8
Common stock purchased							284,000		202,630	1,051,506
Common stock exercised		84,034					395,825
Warrants adjusted in conjunction with IPO									436,079	585,645			44,288
Warrants outstanding per share									$ 15.00	$ 15.00			$ 4.00
Additional amount of loan received									$ 6,750,000
Debt outstanding under credit agreement									500,000			1,500,000
Conversion of outstanding indebtedness to common stock	9,600,000							500,000
Common Shares	963,430	12,596,066									50,000
Conversion price of notes			$ 10.00
Debt instrument spread on variable rate		6.25%
Interest rate at period end		9.50%
Accrued fee on debt instrument	419,000	130,000
Debt instrument amount paid upon conversion of the notes		32,667
Notes issued to related party																				100,000
Interest rate due to related party																				8.50%
Interest expenses on notes issued to related party																				2,357	6,300
Stock options issued to purchase shares of common stock				36,000	36,000										12,000
Common stock price				$ 10.00	$ 10.00										$ 10.00
Common stock, vesting period					2 years										2 years
Consulting and advisory agreement expenses under stock option plan					76,220	367,050									0	142,740
Consulting agreement period				3 years										2 years
Agreement with related party, fee														5,000			10,000			5,000
Agreement with related party, consulting fee																		90,000	90,000	45,000	45,000
Due to related party																		$ 20,000

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Notes Payable and Lines of Credit - Summary of Short-Term and Long-Term Debt Obligations (Detail) (USD $)	Sep. 30, 2013	Apr. 10, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Unamortized debt discount			$ (243,300)
Notes Payable, current portion	43,622		3,836,567
Line of Credit, Principal Balance	6,000,000		3,000,000
Unamortized Debt Discount		(3,500,000)	(128,800)
Line of Credit, Current Portion	6,000,000		2,871,200
Unamortized debt discount			(3,681,615)
Notes payable, long-term			2,440,683
Lines of Credit, Long-Term			6,000,000
December 2011 Financing Transaction [Member]
Debt Instrument [Line Items]
Notes Payable, current portion			4,000,000
Notes payable, long-term			2,000,000
2012 Convertible Debt Financing Transaction [Member]
Debt Instrument [Line Items]
Notes payable, long-term			3,000,000
Secured Note Payable [Member]
Debt Instrument [Line Items]
Notes Payable, current portion	43,622		79,867
Notes payable, long-term			22,298
December 2012 Bridge Financing Transaction [Member]
Debt Instrument [Line Items]
Notes payable, long-term			1,000,000
Other Note Payable [Member]
Debt Instrument [Line Items]
Notes payable, long-term			$ 100,000

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Fair Value of Warrants (Tables)

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Assumptions Used in Computing Fair Value of Derivative Warrants

The following tables summarize the assumptions used in computing the fair value of derivative warrants subject to fair value accounting at the date of issue during the nine months ended September 30, 2013 and 2012 and at September 30, 2013, April 5, 2013 (IPO valuation date) and December 31, 2012. In computing the fair value of the warrants, if the stated exercise price of the warrants exceeded the assumed value of the Company stock at the date the fair value was being computed, the exercise price and number of shares (if applicable) underlying the warrants were adjusted to reflect an assumed trigger of the price and/or share adjustment features related to the applicable warrants:

Debt Guarantee	Issued During the Nine Months Ended September 30, 2012			As of September 30, 2013			As of April 5, 2013			As of December 31, 2012
Exercise Price	$	42.50		$	10.00		$	13.56		$	9.60
Expected life (years)		4.73			1.08			2.42			2.66
Expected volatility		80.47	%		57.51	%		66.37	%		67.71	%
Risk-free interest rate		0.90	%		0.10	%		0.32	%		0.37	%
Expected dividend yield		0.00	%		0.00	%		0.00	%		0.00	%

Series B	As of September 30, 2013			As of December 31, 2012
Exercise Price	$	10.00		$	9.60
Expected life (years)		2.17			2.92
Expected volatility		65.18	%		61.44	%
Risk-free interest rate		0.33	%		0.36	%
Expected dividend yield		0.00	%		0.00	%

Consulting	As of September 30, 2013			As of April 5, 2013			As of December 31, 2012
Exercise Price	$	10.00		$	10.00		$	9.60
Expected life (years)		2.39			2.33			2.48
Expected volatility		63.81	%		63.20	%		63.29	%
Risk-free interest rate		0.33	%		0.27	%		0.28	%
Expected dividend yield		0.00	%		0.00	%		0.00	%

	Issued During the Nine Months Ended September 30,						Issued During the Three Months Ended September 30, 2012			As of September  30, 2013			As of April  5, 2013			As of December  31, 2012
Financing	2013			2012
Exercise Price	$	13.34		$	42.50		$	42.50		$	10.00		$	13.21		$	9.60
Expected life (years)		9.78			4.93			5.08			2.50			8.30			6.66
Expected volatility		74.70	%		79.41	%		79.36	%		63.12	%		73.22	%		73.38	%
Risk-free interest rate		1.95	%		0.79	%		0.71	%		0.63	%		1.44	%		1.06	%
Expected dividend yield		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%

Summary of Derivative Warrant Activity

The following table summarizes the derivative warrant activity subject to fair value accounting for the nine months ended September 30, 2013:

Issued with/for	Fair value of warrants outstanding as of December 31, 2012		Fair value of warrants issued		Reclassification to equity in IPO			Warrants Exercised			Change in fair value of warrants			Fair value of warrants outstanding as of September 30, 2013
Series B Preferred Stock	$	230,000	$	—	$	—		$	(373,000	)	$	422,000		$	279,000
Debt Guarantee		5,679,000		—		(2,514,000	)		—			(3,026,000	)		139,000
Consulting		147,000		—		(108,000	)		—			(36,000	)		3,000
Financing		6,493,000		268,000		(4,548,000	)		—			(1,456,000	)		757,000
	$	12,549,000	$	268,000	$	(7,170,000	)	$	(373,000	)	$	(4,096,000	)	$	1,178,000

XML

Warrants (Tables)

9 Months Ended

Sep. 30, 2013

Text Block [Abstract]

Summary of Warrant Activity

The following table summarizes the warrant activity for the nine months ended September 30, 2013:

Issued With / For	Exercise Price			Warrants Outstanding January 1, 2013		2013 Warrants Issued		2013 Warrants Exercised			2013 Warrants Expired			IPO Adjustments (E)			Warrants Outstanding September 30, 2013
Non-Derivative Warrants:
Financing	$	10.00			—		—		—			—			243,334			243,334
Financing		15.00			—		—		—			—			436,079			436,079
Debt Guarantee		4.00			228,288		—		(54,000	)		—			—			174,288
Debt Guarantee		10.00			—		—		—			—			237,500			237,500
Debt Guarantee		15.00			—		—		—			—			585,645			585,645
Series A Pref. Stock		14.10			65,329		—		—			(22,861	)		—			42,468
Consulting		10.00			—		—		—			—			29,138			29,138
		12.42	F		293,617		—		(54,000	)		(22,861	)		1,531,696			1,748,452
Derivative Warrants:
Financing		10.00	B		—		—		—			—			60,000			60,000
Financing		25.00	B		60,000		—		—			—			(60,000	)		—
Financing		42.50	BCD		75,294		—		—			—			(75,294	)		—
Financing		42.50	AD		54,314		2,941		—			—			(57,255	)		—
Financing		42.50	ACD		120,865		6,471		—			—			(127,336	)		—
Debt Guarantee		10.00	A		—		—		—			—			12,500			12,500
Debt Guarantee		25.00	ACD		212,000		—		—			—			(212,000	)		—
Debt Guarantee		25.00	AD		95,000		—		—			—			(95,000	)		—
Debt Guarantee		25.00	A		5,000		—		—			—			(5,000	)		—
Debt Guarantee		32.45	ACD		40,000		—		—			—			(40,000	)		—
Debt Guarantee		42.50	ACD		38,392		—		—			—			(38,392	)		—
Debt Guarantee		42.50	BCD		37,000		—		—			—			(37,000	)		—
Series B Pref. Stock		10.00	B		—		—		(30,034	)		—			52,464			22,430
Series B Pref. Stock		25.00	B		52,464		—		—			—			(52,464	)		—
Consulting		10.00	B		—		—		—			—			200			200
Consulting		12.50	AD		4,030		—		—			—			(4,030	)		—
Consulting		14.10	AD		10,000		—		—			—			(10,000	)		—
Consulting		25.00	B		200		—		—			—			(200	)		—
Consulting		25.00	AD		4,000		—		—			—			(4,000	)		—
		10.00	F		808,559		9,412		(30,034	)		—			(692,807	)		95,130
	$	12.30	F		1,102,176		9,412		(84,034	)		(22,861	)		838,889			1,843,582

^A  These warrants are subject to fair value accounting and contain exercise price and number of share adjustment features. See Note 9.

^B  These warrants are subject to fair value accounting and contain an exercise price adjustment feature. See Note 9.

^C  On February 11, 2013, these warrants held by John Pappajohn were amended to limit the adjustment feature(s) to $15.00 per share in an initial public offering (totaling 530,022 warrants).

^D  The exercise price and/or number of share adjustment features of these warrants expired and are no longer subject to fair value accounting after our initial public offering.

^E  On April 10, 2013 the Company completed the IPO at $10.00 per share. The shares of common stock issuable upon the exercise of warrants outstanding as of April 10, 2013 increased by 838,889 shares and the exercise prices of 1,656,860 warrants were adjusted as a result of the share and exercise price adjustment features described above.

^F  Weighted average exercise prices are as of September 30, 2013.

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Stock Option Plans - Weighted-Average Assumptions Used to Estimate the Fair Value of Options Granted (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility			77.11%	77.39%
Risk free interest rate			0.76%	1.43%
Dividend yield			0.00%	0.00%
Term (years)			5 years 11 months 12 days	6 years 6 months
Weighted-average fair value of options granted during the period			$ 6.72	$ 9.34
Non-Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	75.32%	75.23%	75.87%	75.01%
Risk free interest rate	1.93%	1.04%	1.40%	1.31%
Dividend yield	0.00%	0.00%	0.00%	0.00%
Term (years)	7 years 2 months 16 days	8 years 1 month 6 days	7 years 6 months	8 years 4 months 6 days

XML

Significant Accounting Policies - Summary of Potentially Dilutive Adjustments to Weighted Average Number of Common Shares Excluded from Calculation (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation	2,349,876	2,225,972	2,349,876	2,225,972
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation	1,843,582	955,458	1,843,582	955,458
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation	506,294	553,580	506,294	553,580
Series A Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation		352,614		352,614
Series B Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from calculation		364,320		364,320

XML

Notes Payable and Lines of Credit - Conversion of Indebtedness into Shares of Common Stock (Detail) (USD $)	1 Months Ended	9 Months Ended	1 Months Ended
	Apr. 10, 2013	Sep. 30, 2013	Apr. 10, 2013 December 2011 Financing Transaction [Member]	Apr. 10, 2013 2012 Convertible Debt Financing Transaction [Member]	Apr. 10, 2013 December 2012 Bridge Financing Transaction [Member]	Dec. 07, 2012 December 2012 Bridge Financing Transaction [Member]	Apr. 10, 2013 Business Lines of Credit (DAM) [Member]	Feb. 13, 2013 Business Lines of Credit (DAM) [Member]	Apr. 10, 2013 Other Notes Payable and Accrued Interest [Member]
Debt Conversion [Line Items]
Converted Amount	$ 9,600,000		$ 4,500,000	$ 3,000,000	$ 1,000,000		$ 1,000,000	$ 1,000,000	$ 134,300
Common Shares	963,430	12,596,066	450,000	300,000	100,000	100,000	100,000		13,430

XML

Warrants - Summary of Warrant Activity (Detail) (USD $)	1 Months Ended	9 Months Ended
	Jul. 06, 2013	Sep. 30, 2013
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 12.30
Warrants outstanding, beginning balance		1,102,176
Warrants issued	3,928	9,412
Warrants exercised		(84,034)
Warrants expired		(22,861)
IPO adjustments		838,889
Warrants outstanding, ending balance		1,843,582
Warrant Issued With [Member] | Warrants Other Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 12.42
Warrants outstanding, beginning balance		293,617
Warrants issued
Warrants exercised		(54,000)
Warrants expired		(22,861)
IPO adjustments		1,531,696
Warrants outstanding, ending balance		1,748,452
Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 10.00
Warrants outstanding, beginning balance		808,559
Warrants issued		9,412
Warrants exercised		(30,034)
Warrants expired
IPO adjustments		(692,807)
Warrants outstanding, ending balance		95,130
Debt Guarantee [Member] | Warrant Issued With [Member] | Warrants Other Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 4.00
Warrants outstanding, beginning balance		228,288
Warrants issued
Warrants exercised		(54,000)
Warrants expired
IPO adjustments
Warrants outstanding, ending balance		174,288
Debt Guarantee [Member] | Warrant Issued With [Member] | Warrants Other Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 10.00
Warrants outstanding, beginning balance
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		237,500
Warrants outstanding, ending balance		237,500
Debt Guarantee [Member] | Warrant Issued With [Member] | Warrants Other Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 15.00
Warrants outstanding, beginning balance
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		585,645
Warrants outstanding, ending balance		585,645
Debt Guarantee [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 10.00
Warrants outstanding, beginning balance
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		12,500
Warrants outstanding, ending balance		12,500
Debt Guarantee [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 25.00
Warrants outstanding, beginning balance		212,000
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(212,000)
Warrants outstanding, ending balance
Debt Guarantee [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 25.00
Warrants outstanding, beginning balance		95,000
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(95,000)
Warrants outstanding, ending balance
Debt Guarantee [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 25.00
Warrants outstanding, beginning balance		5,000
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(5,000)
Warrants outstanding, ending balance
Debt Guarantee [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 32.45
Warrants outstanding, beginning balance		40,000
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(40,000)
Warrants outstanding, ending balance
Debt Guarantee [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 42.50
Warrants outstanding, beginning balance		38,392
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(38,392)
Warrants outstanding, ending balance
Debt Guarantee [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 42.50
Warrants outstanding, beginning balance		37,000
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(37,000)
Warrants outstanding, ending balance
Series A Preferred Stock [Member] | Warrant Issued With [Member] | Warrants Other Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 14.10
Warrants outstanding, beginning balance		65,329
Warrants issued
Warrants exercised
Warrants expired		(22,861)
IPO adjustments
Warrants outstanding, ending balance		42,468
Series B Preferred Stock [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 10.00
Warrants outstanding, beginning balance
Warrants issued
Warrants exercised		(30,034)
Warrants expired
IPO adjustments		52,464
Warrants outstanding, ending balance		22,430
Series B Preferred Stock [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 25.00
Warrants outstanding, beginning balance		52,464
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(52,464)
Warrants outstanding, ending balance
Financing [Member] | Warrant Issued With [Member] | Warrants Other Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 10.00
Warrants outstanding, beginning balance
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		243,334
Warrants outstanding, ending balance		243,334
Financing [Member] | Warrant Issued With [Member] | Warrants Other Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 15.00
Warrants outstanding, beginning balance
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		436,079
Warrants outstanding, ending balance		436,079
Consulting [Member] | Warrant Issued With [Member] | Warrants Other Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 10.00
Warrants outstanding, beginning balance
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		29,138
Warrants outstanding, ending balance		29,138
Financing [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 10.00
Warrants outstanding, beginning balance
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		60,000
Warrants outstanding, ending balance		60,000
Financing [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 25.00
Warrants outstanding, beginning balance		60,000
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(60,000)
Warrants outstanding, ending balance
Financing [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 42.50
Warrants outstanding, beginning balance		75,294
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(75,294)
Warrants outstanding, ending balance
Financing [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 42.50
Warrants outstanding, beginning balance		54,314
Warrants issued		2,941
Warrants exercised
Warrants expired
IPO adjustments		(57,255)
Warrants outstanding, ending balance
Financing [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 42.50
Warrants outstanding, beginning balance		120,865
Warrants issued		6,471
Warrants exercised
Warrants expired
IPO adjustments		(127,336)
Warrants outstanding, ending balance
Consulting [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 10.00
Warrants outstanding, beginning balance
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		200
Warrants outstanding, ending balance		200
Consulting [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 12.50
Warrants outstanding, beginning balance		4,030
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(4,030)
Warrants outstanding, ending balance
Consulting [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 14.10
Warrants outstanding, beginning balance		10,000
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(10,000)
Warrants outstanding, ending balance
Consulting [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 25.00
Warrants outstanding, beginning balance		200
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(200)
Warrants outstanding, ending balance
Consulting [Member] | Warrant Issued For [Member] | Warrant Derivative [Member]
Class of Warrant or Right [Line Items]
Warrants, exercise price		$ 25.00
Warrants outstanding, beginning balance		4,000
Warrants issued
Warrants exercised
Warrants expired
IPO adjustments		(4,000)
Warrants outstanding, ending balance

XML

Organization, Description of Business, Reverse Stock Splits and Initial Public Offering - Schedule of Balance Sheet Data and Pro Forma Balance Sheet Data (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Subsequent Event [Line Items]
Cash and cash equivalents	$ 9,878,176	$ 819,906	$ 903,257	$ 2,417,256
Loan guarantee and financing fees	621,000
Accounts payable and accrued expenses	1,807,081	4,578,761
Notes Payable, current portion	43,622	3,836,567
Line of credit	6,000,000	2,871,200
Warrant liability	1,178,000	12,549,000
Common stock	597	135
Additional paid-in capital	63,681,317	24,970,255
Accumulated deficit	(58,800,191)	(48,934,585)
Pro Forma [Member]
Subsequent Event [Line Items]
Cash and cash equivalents	52,129,334
Loan guarantee and financing fees	621,000
Accounts payable and accrued expenses	1,807,081
Notes Payable, current portion	43,622
Line of credit	6,000,000
Warrant liability	1,178,000
Common stock	925
Additional paid-in capital	105,932,147
Accumulated deficit	$ (58,800,191)

XML

Stock Option Plans - Additional Information (Detail) (USD $)	1 Months Ended			9 Months Ended	12 Months Ended	0 Months Ended				9 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended		0 Months Ended							9 Months Ended			9 Months Ended		0 Months Ended
	Apr. 10, 2013	Apr. 17, 2013	Apr. 05, 2013	Sep. 30, 2013 Stock_Plan	Dec. 31, 2012	Oct. 10, 2013 Subsequent Event	Oct. 03, 2013 Subsequent Event	Oct. 08, 2013 Eight Employees Incentive Stock Options [Member] Subsequent Event	Oct. 10, 2013 Twelve Employees Incentive Stock Options [Member] Subsequent Event	Sep. 30, 2013 Employees [Member]	Dec. 31, 2012 Employees [Member]	Apr. 05, 2013 Non-Employees [Member]	Dec. 31, 2012 Non-Employees [Member]	Dec. 31, 2010 Non-Employees [Member]	Oct. 10, 2013 Chief Executive Officer [Member] Subsequent Event	Oct. 10, 2013 Vice President Research and Development [Member] Subsequent Event	Oct. 10, 2013 Non-employee Directors [Member] Subsequent Event	Oct. 10, 2013 Mr. Brownlie, Chairman Audit Committee [Member] Subsequent Event	Oct. 10, 2013 Mr. Thompson, Chairman Audit Committee [Member] Subsequent Event	Oct. 10, 2013 Chairman of Audit Committee [Member] Subsequent Event	Sep. 30, 2013 2011 Equity Incentive Plan [Member]	Sep. 30, 2013 2008 Stock Option Plan [Member]	Apr. 01, 2010 2008 Stock Option Plan [Member]	Apr. 29, 2008 2008 Stock Option Plan [Member]	Sep. 30, 2013 Strike Price of $25.00 or More [Member]	Sep. 30, 2013 Strike Price of $12.50 [Member]	Oct. 10, 2013 Restricted Stock Awards [Member] Non-employee Directors [Member] Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity incentive plans				2
Number of common stock shares authorized for issuance																					350,000
Shares of common stock reserved for issuance																							550,000	251,475
Options granted maximum exercisable period																						10 years
Shares available for future awards																					350,000	91,706
Issuance of shares under stock options plans				48,000										80,000
Stock options strike price														$ 25.00											$ 25.00	$ 12.50
Exchange options for number of options held with exercise price equal to initial public offering price, Percentage																									60.00%	80.00%
Price per share on equity offering	$ 10.00																								$ 10.00	$ 10.00
Outstanding stock options			336,300	506,294
Initial public offering exercisable lower price range			$ 12.50
Initial public offering exercisable upper price range			$ 33.80
Initial offering, options exchanged			242,070
Exercise price option		$ 11.75	$ 10.00			$ 15.39	$ 10.00	$ 19.88	$ 15.39								$ 15.39	$ 15.39
Approved options issued			53,500
Options issued, exercise price			$ 10.00
Shares approved by Board of Directors		5,850
Estimated fair value of common stock				$ 20.26	$ 9.60
Unrecognized compensation cost related to nonvested stock options granted										$ 768,129	$ 846,810		$ 190,500
Unrecognized compensation cost related to nonvested stock options granted expect to recognize, period (in years)										2 years 6 months 26 days	2 years 7 months 10 days		6 months
Options exchanged												48,000
Exercise price of options exchanged												$ 10.00
Amount received from employee options exercised							1,640
Employee stock option purchased				59,350	2,400		164	19,600	77,000						200,000	10,000	10,000	12,312
Options vesting period						5 years		5 years	5 years
Option expired						10 years
Restricted shares of common stock issued to Chief Executive Officer						50,000
Options granted, total						60,000
Restricted stock vested																			2,500
Annual base fee																	10,000			10,000
Annual fee																				$ 10,000
Issuance of common stock																											5,000
Stock options issued to purchase shares of common stock																	10,000

XML

Stock Option Plans (Tables)

9 Months Ended

Sep. 30, 2013

Summary of Employee and Nonemployee Stock Option Activity

A summary of employee and nonemployee stock option activity for year ended December 31, 2012 and the nine months ended September 30, 2013 is as follows:

	Options Outstanding					Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
	Number of Shares			Weighted- Average Exercise Price
Outstanding January 1, 2012		559,990		$	12.85		8.10	$	11,737,710
Granted		2,400			33.80
Cancelled or expired		(9,050	)		23.43
Outstanding December 31, 2012		553,340		$	12.76		7.13	$	1,142,432
Granted		59,350			10.17
Cancelled or expired		(106,396	)		20.46
Outstanding September 30, 2013		506,294		$	7.60		6.53	$	6,407,644
Exercisable, September 30, 2013		393,580		$	7.00		6.24	$	5,220,243

Summary of Outstanding and Vested Stock Options Granted

The following table summarizes information about outstanding and vested stock options granted to employees and non-employees as of September 30, 2013 as follows:

	Options Outstanding						Options Vested and Exercisable
Exercise Price	Number of Shares Outstanding		Weighted- Average Remaining Contractual Life (in years)		Weighted- Average Exercise Price		Number of Shares		Weighted- Average Exercise Price
4.00		175,000		5.58	$	4.00		175,000	$	4.00
4.80		33,340		6.30		4.80		25,459		4.80
10.00		292,154		7.06		10.00		193,011		10.00
11.75		5,600		9.54		11.75		—		11.75
12.50		200		7.19		12.50		110		12.50
Total		506,294		6.53	$	7.60		393,580	$	7.00

Effects of Stock-Based Compensation Related to Stock Option Awards

The following table presents the effects of stock-based compensation related to stock option awards to employees and nonemployees on our Statement of Operations during the periods presented:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Cost of revenues	$	8,442	$	1,126	$	22,621	$	9,557
Research and development		28,516		120,183		119,314		389,295
General and administrative		71,268		62,426		223,535		223,150
Sales and marketing		9,107		17,748		41,731		144,165
Total stock-based compensation	$	117,333	$	201,483	$	407,202	$	766,167

Non-Employees [Member]

Weighted-Average Assumptions Used to Estimate the Fair Value of Options Granted

The following table presents the weighted-average assumptions used to estimate the fair value of options reaching their measurement date for non-employees during the periods presented:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Volatility		75.32	%		75.23	%		75.87	%		75.01	%
Risk free interest rate		1.93	%		1.04	%		1.40	%		1.31	%
Dividend yield		0.00	%		0.00	%		0.00	%		0.00	%
Term (years)		7.21			8.10			7.50			8.35

Employees [Member]

Weighted-Average Assumptions Used to Estimate the Fair Value of Options Granted

The following table presents the weighted-average assumptions used to estimate the fair value of options granted to employees during the periods presented:

	Nine Months Ended September 30,
	2013			2012
Volatility		77.11	%		77.39	%
Risk free interest rate		0.76	%		1.43	%
Dividend yield		0.00	%		0.00	%
Term (years)		5.95			6.50
Weighted-average fair value of options granted during the period	$	6.72		$	9.34

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Consolidated Statements of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss)	$ (9,848,164)	$ (2,621,390)
Adjustments to reconcile net (loss) to net cash used in operating activities:
Depreciation	227,376	266,489
Amortization	11,422	11,422
Provision for bad debts		(528)
Equity-based consulting and compensation expenses	310,982	766,167
Equity-based research and development expenses	96,220
Change in fair value of warrant liability	(4,096,000)	(6,370,000)
Extension of warrants		144,000
Amortization of loan guarantee and financing fees	884,460	952,544
Accretion of discount on debt	584,692	1,559,009
Deferred rent	4,868	6,364
Deferred initial public offering costs expensed	617,706
Write-off of debt conversion costs	6,849,830
Change in working capital components:
Accounts receivable	(765,589)	(149,870)
Other current assets	(223,849)	(182,803)
Accounts payable, accrued expenses and deferred revenue	(1,255,166)	(144,773)
Net cash (used in) operating activities	(6,601,212)	(5,763,369)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of fixed assets	(72,840)	(33,540)
Patent costs	(52,771)	(184,456)
Increase in restricted cash	(50,000)	(50,000)
Net cash (used in) investing activities	(175,611)	(267,996)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments on capital lease obligations	(12,762)	(32,005)
Proceeds from initial public offering of common stock, net of offering costs	4,984,025	(1,190,609)
Proceeds from secondary public offering of common stock, net of offering costs	14,230,372
Proceeds from warrant exercises	192,000	619,980
Proceeds from borrowings on notes payable		5,120,000
Principal payments on notes payable	(3,558,542)
Net cash provided by financing activities	15,835,093	4,517,366
Net increase (decrease) in cash and cash equivalents	9,058,270	(1,513,999)
CASH AND CASH EQUIVALENTS
Beginning	819,906	2,417,256
Ending	9,878,176	903,257
SUPPLEMENTAL CASH FLOW DISCLOSURE
Cash paid for interest	570,601	761,458
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Warrants issued for financing fees	47,000	727,000
Warrants issued with debt		2,048,000
Warrants issued for debt guarantee fee		755,000
Accrued offering costs		1,384,123
Offering costs discounted	733,250
Accrued expenses reclassified as derivative warrant liability	221,000	148,000
Accrued expenses recorded as financing fees		184,000
Retirement of treasury stock	17,442
Conversion of notes payable, lines of credit and accrued interest to common stock	9,364,300
Conversion of preferred stock to common stock	241
Reclassification of derivative warrants	7,170,000
Cashless exercise of derivative warrants	373,000
Reclassification of deferred offering costs to additional paid-in capital	$ 1,992,333

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Significant Accounting Policies

9 Months Ended

Sep. 30, 2013

Accounting Policies [Abstract]

Significant Accounting Policies

Note 2. Significant Accounting Policies

Basis of presentation: The accompanying unaudited financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions for interim reporting as they are prescribed by the Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary to make the financial statements not misleading have been included. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the audited consolidated financial statements as of and for the year ended December 31, 2012 that are included in our prospectus filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933, on October 23, 2013 (Prospectus). The consolidated balance sheet as of December 31, 2012, included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP. Interim financial results are not necessarily indicative of the results that may be expected for future interim periods or for the year ending December 31, 2013.

Liquidity/Going Concern: Our primary sources of liquidity have been funds generated from debt financing, the sale of shares of common and preferred stock, grants in lieu of federal income tax credits, National Institute of Health grants and sales of state NOL carryforwards.

We believe our cash resources, prior to our latest offering of common stock, which was consummated on October 28, 2013, were sufficient to satisfy our liquidity requirements at our current level of operations through September 2014 and assuming we are able to secure an extension of the $6.0 million of indebtedness due April 1, 2014 through March 2015. We have commenced negotiations with Wells Fargo and with Mr. Pappajohn, who serves as a guarantor for such outstanding indebtedness, to further extend the maturity date. However, there can be no assurances that we will be successful. If we are not successful in obtaining an extension, we expect that we would use a portion of the net proceeds received from our latest offering of common stock, which was consummated on October 28, 2013, to repay that debt. Including the funds raised through the offering of common stock which was consummated on October 28, 2013, we believe that our current cash resources are sufficient to satisfy our liquidity requirements for at least two years even if we are unable to secure an extension of the Wells Fargo debt. Our forecast of the period of time through which our financial resources will be adequate to support our operations and the costs to support our general and administrative, sales and marketing and research and development activities are forward-looking statements and involve risks and uncertainties.

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. The Company has suffered recurring losses from operations and had negative working capital at September 30, 2013. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty. Refer to the section entitled “Capital Resources and Expenditure Requirements” in Item 2. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Form 10-Q of which these financial statements are a part.

Principles of consolidation: The accompanying consolidated financial statements include the accounts of Cancer Genetics, Inc. and our wholly owned subsidiary, Cancer Genetics Italia S.r.L. All significant intercompany account balances and transactions have been eliminated in consolidation.

Use of estimates and assumptions: The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates made by management include, among others, realization of amounts billed, realization of long-lived assets, realization of intangible assets, accruals for registration payments and assumptions used to value stock options and warrants. Actual results could differ from those estimates.

Risks and uncertainties: We operate in an industry that is subject to intense competition, government regulation and rapid technological change. Our operations are subject to significant risk and uncertainties including financial, operational, technological, regulatory and other risks, including the potential risk of business failure.

Cash and cash equivalents: Highly liquid investments with original maturities of three months or less when purchased are considered to be cash equivalents. Financial instruments which potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents. We maintain cash and cash equivalents with high-credit quality financial institutions. At times, such amounts may exceed insured limits. We have not experienced any losses in such accounts and believe we are not exposed to any significant credit risk on our cash and cash equivalents.

Revenue recognition: Revenue is recognized in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 605, Revenue Recognition, and ASC 954-605 Health Care Entities, Revenue Recognition which requires that four basic criteria must be met before revenue can be recognized: (1) persuasive evidence that an arrangement exists; (2) delivery has occurred and title and the risks and rewards of ownership have been transferred to the customer or services have been rendered; (3) the price is fixed or determinable; and (4) collectability is reasonably assured. In determining whether the price is fixed or determinable, we consider payment limits imposed by insurance carriers and Medicare and the amount of revenue recorded takes into account the historical percentage of revenue we have collected for each type of test for each payor category. Periodically, an adjustment is made to revenue to record differences between our anticipated cash receipts from insurance carriers and Medicare and actual receipts from such payors. For the periods presented, such adjustments were not significant. For direct bill customers (including clinical trials customers), revenue is recorded based upon the contractually agreed upon fee schedule. When assessing collectability, we consider whether we have sufficient payment history to reliably estimate a payor’s individual payment patterns. For new tests where there is no evidence of payment history at the time the tests are completed, we only recognize revenues once reimbursement experience can be established. We then recognize revenue equal to the amount of cash received. Sales of probes are recorded on the shipping date. We do not bill customers for shipping and handling fees and do not collect any sales or other taxes.

Revenues from grants to support product development are recognized when costs and expenses under the terms of the grant have been incurred and payments under the grants become contractually due.

Accounts receivable: Accounts receivable are carried at original invoice amount less an estimate for contractual adjustments and doubtful receivables, the amounts of which are determined by an analysis of individual accounts. Our policy for assessing the collectability of receivables is dependent upon the major payor source of the underlying revenue. For direct bill clients, an assessment of credit worthiness is performed prior to initial engagement and is reassessed periodically. If deemed necessary, an allowance is established on receivables from direct bill clients. For insurance carriers where there is not an established pattern of collection, revenue is not recorded until cash is received. For receivables where insurance carriers have made payments to patients instead of directing payments to the Company, an allowance is established for a portion of such receivables. After reasonable collection efforts are exhausted, amounts deemed to be uncollectible are written off against the allowance for doubtful accounts. Since the Company only recognizes revenue to the extent it expects to collect such amounts, bad debt expense related to receivables from patient service revenue is recorded in general and administrative expense in the consolidated statement of operations. Recoveries of accounts receivable previously written off are recorded when received.

Deferred Offering costs: Deferred offering costs represent legal, accounting and other direct costs related to our effort to raise capital through a stock offering. Future costs related to our offering activities will be deferred until the completion of the offering, at which time they will be reclassified to additional paid-in capital as a reduction of the offering proceeds. In connection with our IPO, $617,706 in deferred offering costs were expensed and approximately $2.5 million in deferred offering costs were reclassified to additional paid-in capital. Additionally, $733,250 in deferred offering costs were reduced due to discounts given by vendors associated with that offering and $120,000 was refunded. In connection with our Secondary Offering, we incurred $1.8 million in offering costs, all of which were reclassified to additional paid-in-capital.

Warrant liability: We have issued certain warrants which contain an exercise price adjustment feature in the event we issue additional equity instruments at a price lower than the exercise price of the warrant. The warrants are described herein as derivative warrants. We account for these derivative warrants as liabilities. These common stock purchase warrants do not trade in an active securities market, and as such, we estimate the fair value of these warrants using the binomial lattice valuation pricing model with the assumptions as follows: The risk-free interest rate for periods within the contractual life of the warrant is based on the U.S. Treasury yield curve. The expected life of the warrants is based upon the contractual life of the warrants. Volatility is estimated based on an average of the historical volatilities of the common stock of four entities with characteristics similar to those of the Company. Prior to our IPO, the measurement date fair value of the underlying common shares was based upon an external valuation of our shares. (See Notes 8 and 9). Subsequent to the IPO and Secondary Offering, we use the closing price of our shares on the OTC Bulletin Board and the NASDAQ Capital Market, respectively.

We compute the fair value of the warrant liability at each reporting period and the change in the fair value is recorded as non-cash expense or non-cash income. The key component in the value of the warrant liability is our stock price, which is subject to significant fluctuation and is not under our control. The resulting effect on our net income (loss) is therefore subject to significant fluctuation and will continue to be so until the warrants are exercised, amended or expire. Assuming all other fair value inputs remain constant, we will record non-cash expense when the stock price increases and non-cash income when the stock price decreases.

Income taxes: Income taxes are provided for the tax effects of transactions reported in the consolidated financial statements and consist of taxes currently due plus deferred income taxes. Deferred income taxes are recognized for temporary differences between the financial statement and tax bases of assets and liabilities that will result in taxable or deductible amounts in the future. Deferred income taxes are also recognized for net operating loss carryforwards that are available to offset future taxable income and research and development credits. On January 22, 2013, we sold certain state net operating loss carryforwards. The proceeds of $663,900 are included in our income tax benefit for the nine months ended September 30, 2013.

Registration payment arrangements: We account for our obligations under registration payment arrangements in accordance with ASC 825-20, Registration Payment Arrangements. ASC 825-20 requires us to record a liability if we determine a registration payment is probable and if it can reasonably be estimated. As of September 30, 2013 and December 31, 2012, we have an accrued liability of $300,000 and $541,000, respectively, related to registration rights obligations associated with the issuance of Series B preferred stock and certain notes payable.

Stock-based compensation: Stock-based compensation is accounted for in accordance with the provisions of ASC 718, Compensation-Stock Compensation, which requires the measurement and recognition of compensation expense for all stock-based awards made to employees and directors based on estimated fair values on the grant date. We estimate the fair value of stock-based awards on the date of grant using the Black-Scholes option pricing model. The value of the portion of the award that is ultimately expected to vest is recognized as expense over the requisite service periods using the straight-line method. See additional information in Note 7.

All issuances of stock options or other issuances of equity instruments to employees as the consideration for services received by us are accounted for based on the fair value of the equity instrument issued.

We account for stock-based compensation awards to non-employees in accordance with ASC 505-50, Equity Based Payments to Non-Employees. Under ASC 505-50, we determine the fair value of the warrants or stock-based compensation awards granted as either the fair value of the consideration received or the fair value of the equity instruments issued, whichever is more reliably measurable. Stock-based compensation awards issued to non-employees are recorded in expense and additional paid-in capital in stockholders’ deficit over the applicable service periods based on the fair value of the awards or consideration received at the vesting date.

Subsequent events: We have evaluated potential subsequent events through November 13, 2013, which is the date the financial statements were issued.

Earnings (loss) per share: Basic earnings (loss) per share is computed by dividing net income (loss) available to common stockholders by the weighted average number of common shares assumed to be outstanding during the period of computation. Diluted earnings per share is computed similar to basic earnings per share except that the numerator is adjusted for the change in fair value of the warrant liability (only if dilutive) and the denominator is increased to include the number of dilutive potential common shares outstanding during the period using the treasury stock method.

Basic net income (loss) and diluted net loss per share data were computed as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Numerator:
Net income (loss) for basic earnings per share	$	(3,066,376	)	$	311,588		$	(9,848,164	)	$	(2,621,390	)
Less gain in fair value of warrant liability		—			3,334,000			4,096,000			6,370,000
Net (loss) for diluted earnings per share	$	(3,066,376	)	$	(3,022,412	)	$	(13,944,164	)	$	(8,991,390	)
Denominator:
Weighted-average basic common shares outstanding		5,055,591			1,346,124			3,463,730			1,340,530
Assumed conversion of dilutive securities:
Common stock purchase warrants		—			9,554			4,897			9,554
Potentially dilutive common shares		—			9,554			4,897			9,554
Denominator for diluted earnings per share—adjusted weighted-average shares		5,055,591			1,355,678			3,468,627			1,350,084
Basic net income (loss) per share	$	(0.61	)	$	0.23		$	(2.84	)	$	(1.96	)
Diluted net loss per share	$	(0.61	)	$	(2.23	)	$	(4.02	)	$	(6.66	)

The following table summarizes potentially dilutive adjustments to the weighted average number of common shares which were excluded from the calculation:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Common stock purchase warrants		1,843,582		955,458		1,843,582		955,458
Stock options		506,294		553,580		506,294		553,580
Common shares issuable upon conversion of Series A Preferred Stock		—		352,614		—		352,614
Common shares issuable upon conversion of Series B Preferred Stock		—		364,320		—		364,320
		2,349,876		2,225,972		2,349,876		2,225,972

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Letter of Credit

9 Months Ended

Sep. 30, 2013

Text Block [Abstract]

Letter of Credit

Note 5. Letter of Credit

Pursuant to the terms of our lease for our Rutherford facility, during the second fiscal quarter of 2013 we restricted an additional $50,000 in cash in addition to the $250,000 that was previously restricted in order to secure a $300,000 letter of credit in favor of our landlord.

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Revenue and Accounts Receivable

9 Months Ended

Sep. 30, 2013

Text Block [Abstract]

Revenue and Accounts Receivable

Note 3. Revenue and Accounts Receivable

Revenue by payor type for the three and nine months ended September 30, 2013 and 2012 is comprised of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Medicare	$	229,723	$	178,291	$	637,838	$	586,896
Direct bill (including clinical trials clients)		1,060,684		473,965		2,798,883		1,158,212
Grants and royalty		100,000		279,973		100,000		474,973
Insurance carrier and all others		314,739		310,375		1,218,741		1,005,750
	$	1,705,146	$	1,242,604	$	4,755,462	$	3,225,831

Accounts receivable by payor type at September 30, 2013 and December 31, 2012 consists of the following:

	September 30, 2013			December 31, 2012
Medicare	$	520,153		$	193,024
Direct bill (including clinical trials clients)		585,034			339,763
Insurance carrier and all others		546,947			353,758
Allowance for doubtful accounts		(36,000	)		(36,000	)
	$	1,616,134		$	850,545

We have historically derived a significant portion of our revenue from a limited number of test ordering sites. Our test ordering sites are largely hospitals, cancer centers, reference laboratories and physician offices, as well as biopharmaceutical companies as part of a clinical trial. Oncologists and pathologists at these sites order the tests on behalf of the needs of their oncology patients or as part of a clinical trial sponsored by a biopharmaceutical company in which the patient is being enrolled. We generally do not have formal, long-term written agreements with such test ordering sites, and, as a result, we may lose these significant test ordering sites at any time.

The top five test ordering sites during the three months ended September 30, 2013 and 2012 accounted for 75% and 61% respectively, of our clinical testing volumes, with 36% and 56% respectively, of the volume coming from community hospitals. During the three months ended September 30, 2013, there were two sites which accounted for more than 10% of our revenue: a clinical trial client accounted for approximately 44% of our revenue, and; a community hospital accounted for approximately 10%. During the three months ended September 30, 2012, there were three sites which each accounted for 10% or more of our clinical revenue: a clinical trial client accounted for approximately 15%; a university teaching center accounting for approximately 12%, and; a community hospital network accounted for approximately 10%.

The top five test ordering sites during the nine months ended September 30, 2013 and 2012 accounted for 71% and 61%, respectively, of our clinical testing volumes, with 37% and 47%, respectively, of the volume coming from community hospitals. During the nine months ended September 30, 2013, there was one site which accounted for more than 10% of our revenue: a clinical trial client accounted for approximately 40% of our revenue. During the nine months ended September 30, 2012, there were three sites which each accounted for approximately 10% or more of our clinical revenue: a university teaching center accounting for approximately 15%; a clinical trial client accounted for approximately 12%, and; a community hospital accounted for approximately 11%.

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Letter of Credit - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended
	Jun. 30, 2013	Sep. 30, 2013
Debt Disclosure [Abstract]
Stand-by letter of credit		$ 300,000
Letter of credit facility restricted amount	$ 50,000	$ 250,000

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Summary of Financial Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes the financial liabilities measured at fair value on a recurring basis segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value:

	September 30, 2013
	Total		Quoted Prices in         Active Markets for         Identical Assets         (Level 1)		Significant Other         Observable         Inputs         (Level 2)		Significant         Unobservable         Inputs         (Level 3)
Warrant liability	$	1,178,000		—		—	$	1,178,000

	December 31, 2012
	Total		Quoted Prices in         Active Markets for         Identical Assets         (Level 1)		Significant Other         Observable         Inputs         (Level 2)		Significant         Unobservable         Inputs         (Level 3)
Warrant liability	$	12,549,000		—		—	$	12,549,000

Summary of Activity for Liabilities Measured at Fair Value Using Level 3 Inputs

The following table reflects the activity for liabilities measured at fair value using Level 3 inputs for the nine months ended September 30:

	2013			2012
Balance as of January 1	$	12,549,000		$	11,113,000
Issuances of derivative financial instruments		268,000			3,678,000
Derivative financial instruments reclassified to equity in IPO		(7,170,000	)		—
Derivative financial instruments reclassified to equity upon exercise		(373,000	)		—
Unrealized (gain) loss related to change in fair value		(4,096,000	)		(6,370,000	)
Balance as of September 30	$	1,178,000		$	8,421,000

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Significant Accounting Policies - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Accounting Policies [Abstract]
Outstanding indebtedness	$ 6,000,000
Outstanding indebtedness maturity date	Apr. 01, 2014
Deferred offering costs reclassified to additional paid-in capital	2,500,000
Deferred offering cost	617,706
Offering costs discounted	733,250
Deferred cost expected to be refunded	120,000
Reclassification of offering costs to additional paid-in-capital	1,800,000
Income tax benefit	663,900
Accrued liability related to registration rights obligations associated with the issuance of Series B preferred stock and certain notes payable	$ 300,000	$ 541,000

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Revenue and Accounts Receivable - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Sites accounted for approximately 10% or more of our revenue	2	3	2	3
Clinical Testing [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Percentage of revenue	75.00%	61.00%	71.00%	61.00%
Community Hospitals [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Percentage of revenue	36.00%	56.00%	37.00%	47.00%
Community Hospitals [Member] | 10% or More Clinical Revenue [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Percentage of revenue	10.00%			11.00%
Clinical Trials Client [Member] | 10% or More Clinical Revenue [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Percentage of revenue	44.00%	15.00%	40.00%	12.00%
University Teaching Center [Member] | 10% or More Clinical Revenue [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Percentage of revenue		12.00%		15.00%
Community Hospital Network [Member] | 10% or More Clinical Revenue [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Percentage of revenue		10.00%

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Fair Value Measurements - Summary of Activity for Liabilities Measured at Fair Value Using Level 3 Inputs (Detail) (USD $)	1 Months Ended	9 Months Ended
	Apr. 10, 2013	Sep. 30, 2013	Sep. 30, 2012
Fair Value Disclosures [Abstract]
Balance as of January 1		$ 12,549,000	$ 11,113,000
Issuances of derivative financial instruments		268,000	3,678,000
Derivative financial instruments reclassified to equity in IPO	(7,200,000)	(7,170,000)
Derivative financial instruments reclassified to equity upon exercise		(373,000)
Unrealized (gain) loss related to change in fair value		(4,096,000)	(6,370,000)
Balance as of September 30		$ 1,178,000	$ 8,421,000

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Warrants - Summary of Warrant Activity (Parenthetical) (Detail) (USD $)	1 Months Ended
	Apr. 10, 2013	Sep. 30, 2013	Feb. 11, 2013 IPO [Member]
Class of Warrant or Right [Line Items]
Share price of warrants held by related party			$ 15.00
Warrants held by director in total			530,022
Share price of common stock at the completion of IPO	$ 10.00
Shares issuable on exercise of warrants outstanding	838,889
Number of warrants effected with adjusted exercise price	1,656,860	1,656,860

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Stock Option Plans - Summary of Outstanding and Vested Stock Options Granted (Detail) (USD $)	1 Months Ended	9 Months Ended
	Apr. 05, 2013	Sep. 30, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price	$ 33.80
Number of Shares Options Outstanding	336,300	506,294
Weighted-Average Remaining Contractual Life, Options Outstanding (in years)		6 years 6 months 11 days
Weighted-Average Exercise Price, Options Outstanding		$ 7.60
Number of Shares Options Vested and Exercisable		393,580
Weighted-Average Exercise Price, Options Vested and Exercisable		$ 7.00
Exercise Price 4.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price		$ 4.00
Number of Shares Options Outstanding		175,000
Weighted-Average Remaining Contractual Life, Options Outstanding (in years)		5 years 6 months 29 days
Weighted-Average Exercise Price, Options Outstanding		$ 4.00
Number of Shares Options Vested and Exercisable		175,000
Weighted-Average Exercise Price, Options Vested and Exercisable		$ 4.00
Exercise Price 4.80 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price		$ 4.80
Number of Shares Options Outstanding		33,340
Weighted-Average Remaining Contractual Life, Options Outstanding (in years)		6 years 3 months 18 days
Weighted-Average Exercise Price, Options Outstanding		$ 4.80
Number of Shares Options Vested and Exercisable		25,459
Weighted-Average Exercise Price, Options Vested and Exercisable		$ 4.80
Exercise Price 10.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price		$ 10.00
Number of Shares Options Outstanding		292,154
Weighted-Average Remaining Contractual Life, Options Outstanding (in years)		7 years 22 days
Weighted-Average Exercise Price, Options Outstanding		$ 10.00
Number of Shares Options Vested and Exercisable		193,011
Weighted-Average Exercise Price, Options Vested and Exercisable		$ 10.00
Exercise Price 11.75 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price		$ 11.75
Number of Shares Options Outstanding		5,600
Weighted-Average Remaining Contractual Life, Options Outstanding (in years)		9 years 6 months 15 days
Weighted-Average Exercise Price, Options Outstanding		$ 11.75
Number of Shares Options Vested and Exercisable
Weighted-Average Exercise Price, Options Vested and Exercisable		$ 11.75
Exercise Price 12.50 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price		$ 12.50
Number of Shares Options Outstanding		200
Weighted-Average Remaining Contractual Life, Options Outstanding (in years)		7 years 2 months 9 days
Weighted-Average Exercise Price, Options Outstanding		$ 12.50
Number of Shares Options Vested and Exercisable		110
Weighted-Average Exercise Price, Options Vested and Exercisable		$ 12.50

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Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Accounts receivable, allowance for doubtful accounts receivables	$ 36,000	$ 36,000
Loan guarantee and financing fees, accumulated amortization	$ 207,000	$ 929,498
Preferred stock, shares authorized	9,764,000
Common stock, shares authorized	100,000,000	24,000,000
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares issued	5,965,340	1,349,936
Common stock, shares outstanding	5,965,340	1,349,936
Series A Preferred Stock [Member]
Preferred stock, shares authorized		588,000
Preferred stock, par value		$ 0.0001
Preferred stock, shares issued		587,691
Preferred stock, shares outstanding		587,691
Series B Preferred Stock [Member]
Preferred stock, shares authorized		2,000,000
Preferred stock, par value		$ 0.0001
Preferred stock, shares issued		1,821,600
Preferred stock, shares outstanding		1,821,600

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Warrants

9 Months Ended

Sep. 30, 2013

Text Block [Abstract]

Warrants

Note 8. Warrants

We have issued certain warrants which contain an exercise price adjustment feature in the event we issue additional equity instruments at a price lower than the exercise price of the warrant. The warrants are described herein as derivative warrants. For all derivative warrants, in the event equity instruments are issued at a price lower than the exercise price of the warrant, the exercise price is adjusted to the price of the new equity instruments issued (price adjustment feature). For certain of these warrants, the number of shares underlying the warrant is also adjusted to an amount computed by dividing the proceeds of the warrant under its original terms by the revised exercise price (share adjustment feature). These warrants are initially recorded as a warrant liability at fair value with a corresponding entry to the loan guarantee fee asset, debt discount, additional paid-in capital or expense dependent upon the service provided in exchange for the warrant grant. Subsequently, any change in fair value is recognized in earnings until such time as the warrants are exercised, amended or expire.

In connection with the 2012 Convertible Debt Financing Transaction, we granted 4,118 warrants to Mr. Pappajohn and 2,941 warrants to Mr. Oman on February 22, 2013. The warrants have a ten-year term and an exercise price equal to the IPO price of $10.00 per share. Pursuant to a subsequent agreement, the warrants held by Mr. Pappajohn have an exercise price of $15.00 per share. These warrants were initially recorded at fair value as a financing fee asset and were amortized over the period of the note to interest expense. The issue date fair value of these warrants was $221,000.

In connection with the December 2012 Bridge Financing Transaction, we granted 2,353 ten-year warrants with an exercise price equal to the IPO price of $10.00 per share to Mr. Pappajohn on March 7, 2013. Mr. Pappajohn subsequently agreed that if our final IPO price was below $15.00, there would be no further adjustment to the price or number of shares covered by the warrants held by him. These warrants were initially recorded at fair value as a financing fee asset and were amortized over the period of the note to interest expense. The issue date fair value of these warrants was $47,000.

On February 11, 2013, John Pappajohn agreed to limit certain anti-dilution rights in his warrants to purchase shares of the Company’s common stock. Subject to the consummation of an IPO prior to April 13, 2013, Mr. Pappajohn agreed that if the final IPO price was below $15.00, the exercise price of the warrants held by him would adjust to $15.00 and the number of shares underlying the warrants would be adjusted as if the IPO price were $15.00 and then there would be no further adjustment to the price or number of shares covered by warrants held by him. In February 2013, certain warrant holders agreed to waive the price and share adjustment provisions of their warrants, except for the anti-dilution provisions related to stock splits, subdivisions and combinations, with respect to an aggregate of 114,030 shares of common stock underlying such warrants, effective immediately following the consummation of our IPO on April 10, 2013 at $10.00 per share.

On April 10, 2013, the Company completed the IPO at $10.00 per share. The shares of common stock issuable upon the exercise of warrants increased by 838,889 shares and the exercise prices of 1,656,860 warrants were adjusted as a result of share and exercise price adjustment features in certain warrants.

On April 29, 2013, the Company received $96,000 from shareholders who exercised warrants to purchase 24,000 shares of common stock at $4.00 per share.

On July 6, 2013, a warrant holder exercised a warrant to purchase 6,000 shares of common stock at an exercise price of $4.00 per share using the net issuance exercise method whereby 2,072 shares were surrendered as payment in full of the exercise price resulting in a net issuance of 3,928 shares.

On July 8, 2013, the Company received $96,000 from shareholders who exercised warrants to purchase 24,000 shares of common stock at $4.00 per share.

On September 10, 2013 and September 27, 2013, the Company extended the expiration date of 42,468 warrants for 17 days and 11 days respectively.

On September 30, 2013, warrant holders exercised warrants to purchase 30,034 shares of common stock at an exercise price of $10.00 per share using the net issuance exercise method whereby 14,313 shares were surrendered as payment in full of the exercise price resulting in a net issuance of 15,721 shares.

The following table summarizes the warrant activity for the nine months ended September 30, 2013:

Issued With / For	Exercise Price			Warrants Outstanding January 1, 2013		2013 Warrants Issued		2013 Warrants Exercised			2013 Warrants Expired			IPO Adjustments (E)			Warrants Outstanding September 30, 2013
Non-Derivative Warrants:
Financing	$	10.00			—		—		—			—			243,334			243,334
Financing		15.00			—		—		—			—			436,079			436,079
Debt Guarantee		4.00			228,288		—		(54,000	)		—			—			174,288
Debt Guarantee		10.00			—		—		—			—			237,500			237,500
Debt Guarantee		15.00			—		—		—			—			585,645			585,645
Series A Pref. Stock		14.10			65,329		—		—			(22,861	)		—			42,468
Consulting		10.00			—		—		—			—			29,138			29,138
		12.42	F		293,617		—		(54,000	)		(22,861	)		1,531,696			1,748,452
Derivative Warrants:
Financing		10.00	B		—		—		—			—			60,000			60,000
Financing		25.00	B		60,000		—		—			—			(60,000	)		—
Financing		42.50	BCD		75,294		—		—			—			(75,294	)		—
Financing		42.50	AD		54,314		2,941		—			—			(57,255	)		—
Financing		42.50	ACD		120,865		6,471		—			—			(127,336	)		—
Debt Guarantee		10.00	A		—		—		—			—			12,500			12,500
Debt Guarantee		25.00	ACD		212,000		—		—			—			(212,000	)		—
Debt Guarantee		25.00	AD		95,000		—		—			—			(95,000	)		—
Debt Guarantee		25.00	A		5,000		—		—			—			(5,000	)		—
Debt Guarantee		32.45	ACD		40,000		—		—			—			(40,000	)		—
Debt Guarantee		42.50	ACD		38,392		—		—			—			(38,392	)		—
Debt Guarantee		42.50	BCD		37,000		—		—			—			(37,000	)		—
Series B Pref. Stock		10.00	B		—		—		(30,034	)		—			52,464			22,430
Series B Pref. Stock		25.00	B		52,464		—		—			—			(52,464	)		—
Consulting		10.00	B		—		—		—			—			200			200
Consulting		12.50	AD		4,030		—		—			—			(4,030	)		—
Consulting		14.10	AD		10,000		—		—			—			(10,000	)		—
Consulting		25.00	B		200		—		—			—			(200	)		—
Consulting		25.00	AD		4,000		—		—			—			(4,000	)		—
		10.00	F		808,559		9,412		(30,034	)		—			(692,807	)		95,130
	$	12.30	F		1,102,176		9,412		(84,034	)		(22,861	)		838,889			1,843,582

^A  These warrants are subject to fair value accounting and contain exercise price and number of share adjustment features. See Note 9.

^B  These warrants are subject to fair value accounting and contain an exercise price adjustment feature. See Note 9.

^C  On February 11, 2013, these warrants held by John Pappajohn were amended to limit the adjustment feature(s) to $15.00 per share in an initial public offering (totaling 530,022 warrants).

^D  The exercise price and/or number of share adjustment features of these warrants expired and are no longer subject to fair value accounting after our initial public offering.

^E  On April 10, 2013 the Company completed the IPO at $10.00 per share. The shares of common stock issuable upon the exercise of warrants outstanding as of April 10, 2013 increased by 838,889 shares and the exercise prices of 1,656,860 warrants were adjusted as a result of the share and exercise price adjustment features described above.

^F  Weighted average exercise prices are as of September 30, 2013.

Subsequent Event

On October 28, 2013, warrant holders exercised warrants to purchase 33,868 shares of common stock, at exercise prices ranging from $10.00 – $14.10 per share, using the net issuance exercise method whereby 23,188 shares were surrendered as payment in full of the exercise price resulting in a net issuance of 10,680 shares.

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Consolidated Statements of Changes in Stockholders' Equity (Deficit) (USD $)	Total	Series A Preferred Stock [Member]	Series B Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]
Balance at Dec. 31, 2012	$ (23,981,396)	$ 59	$ 182	$ 135	$ 24,970,255	$ (17,442)	$ (48,934,585)
Balance (in shares) at Dec. 31, 2012		587,691	1,821,600	1,349,936
Stock based compensation-employees	310,982				310,982
Stock based compensation-non-employees	76,220				76,220
Conversion of preferred stock into common stock		(59)	(182)	129	112
Conversion of preferred stock into common stock (in shares)		(587,691)	(1,821,600)	1,287,325
Conversion of debt into common stock	12,596,066			96	12,595,970
Conversion of debt into common stock (in shares)				963,430
Issuance of common stock in IPO, net of offering costs	3,742,643			69	3,742,574
Issuance of common stock in IPO, net of offering costs (in shares)				690,000
Issuance of common stock in Secondary Offering, net of offering costs	14,230,372			161	14,230,211
Issuance of common stock in Secondary Offering, net of offering costs (in shares)				1,605,000
Issuance of common stock pursuant to license agreement	20,000				20,000
Issuance of common stock pursuant to license agreement (in shares)				2,000
Reclassification of derivative warrants	7,170,000				7,170,000
Exercise of warrants	565,000			7	564,993
Exercise of warrants (in shares)				67,649
Retirement of treasury stock						17,442	(17,442)
Net loss	(9,848,164)						(9,848,164)
Balance at Sep. 30, 2013	$ 4,881,723			$ 597	$ 63,681,317		$ (58,800,191)
Balance (in shares) at Sep. 30, 2013				5,965,340

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Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
CURRENT ASSETS
Cash and cash equivalents	$ 9,878,176	$ 819,906
Accounts receivable, net of allowance for doubtful accounts of $36,000	1,616,134	850,545
Other current assets	713,127	489,278
Total current assets	12,207,437	2,159,729
FIXED ASSETS, net of accumulated depreciation	810,387	964,923
OTHER ASSETS
Security deposits	1,564	1,564
Restricted cash	300,000	250,000
Loan guarantee and financing fees, net of accumulated amortization of 2013 $207,000; 2012 $929,498	621,000	1,907,502
Patents	366,113	324,764
Deferred offering costs		3,343,289
Total other assets	1,288,677	5,827,119
Total Assets	14,306,501	8,951,771
CURRENT LIABILITIES
Accounts payable and accrued expenses	1,807,081	4,578,761
Obligations under capital leases, current portion	11,886	17,158
Deferred revenue	215,023	468,010
Notes Payable, current portion	43,622	3,836,567
Lines of credit	6,000,000	2,871,200
Total current liabilities	8,077,612	11,771,696
Obligations under capital leases		7,490
Deferred rent payable	169,166	164,298
Notes payable, long-term		2,440,683
Lines of credit		6,000,000
Warrant liability	1,178,000	12,549,000
Total liabilities	9,424,778	32,933,167
STOCKHOLDERS' EQUITY (DEFICIT)
Common stock, authorized 100,000,000 and 24,000,000 shares, respectively, $0.0001 par value, 5,965,340 and 1,349,936 shares issued and outstanding as of September 30, 2013 and December 31, 2012, respectively	597	135
Additional paid-in capital	63,681,317	24,970,255
Treasury stock		(17,442)
Accumulated deficit	(58,800,191)	(48,934,585)
Total Stockholders' Equity (Deficit)	4,881,723	(23,981,396)
Total Liabilities and Stockholders' Equity (Deficit)	14,306,501	8,951,771
Series A Preferred Stock [Member]
STOCKHOLDERS' EQUITY (DEFICIT)
Preferred Stock, value		59
Series B Preferred Stock [Member]
STOCKHOLDERS' EQUITY (DEFICIT)
Preferred Stock, value		$ 182

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Fair Value of Warrants - Assumptions Used in Computing Fair Value of Derivative Warrants (Detail) (USD $)	1 Months Ended			3 Months Ended	9 Months Ended
	Sep. 30, 2013	Apr. 05, 2013	Dec. 31, 2012	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Financing [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 10.00	$ 13.21	$ 9.60	$ 42.50	$ 13.34	$ 42.50
Expected life (years)	2 years 6 months	8 years 3 months 18 days	6 years 7 months 28 days	5 years 29 days	9 years 9 months 11 days	4 years 11 months 5 days
Expected volatility	63.12%	73.22%	73.38%	79.36%	74.70%	79.41%
Risk-free interest rate	0.63%	1.44%	1.06%	0.71%	1.95%	0.79%
Expected dividend yield	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
Consulting [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 10.00	$ 10.00	$ 9.60		$ 10.00
Expected life (years)	2 years 4 months 21 days	2 years 3 months 29 days	2 years 5 months 23 days
Expected volatility	63.81%	63.20%	63.29%
Risk-free interest rate	0.33%	0.27%	0.28%
Expected dividend yield	0.00%	0.00%	0.00%
Series B Preferred Stock [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 10.00		$ 9.60		$ 10.00
Expected life (years)	2 years 2 months 1 day		2 years 11 months 1 day
Expected volatility	65.18%		61.44%
Risk-free interest rate	0.33%		0.36%
Expected dividend yield	0.00%		0.00%
Debt Guarantee [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 10.00	$ 13.56	$ 9.60	$ 42.50	$ 10.00	$ 42.50
Expected life (years)	1 year 29 days	2 years 5 months 1 day	2 years 7 months 28 days			4 years 8 months 23 days
Expected volatility	57.51%	66.37%	67.71%			80.47%
Risk-free interest rate	0.10%	0.32%	0.37%			0.90%
Expected dividend yield	0.00%	0.00%	0.00%			0.00%

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Organization, Description of Business, Reverse Stock Splits and Initial Public Offering - Additional Information (Detail) (USD $)	1 Months Ended			3 Months Ended		9 Months Ended				0 Months Ended		3 Months Ended		9 Months Ended			1 Months Ended
	Apr. 10, 2013	Mar. 01, 2013	Feb. 08, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 05, 2013	Dec. 31, 2012	Oct. 28, 2013 Subsequent Event	Oct. 31, 2013 Subsequent Event	Sep. 30, 2013 Cancer Genetics Italia SRL [Member]	Sep. 30, 2012 Cancer Genetics Italia SRL [Member]	Sep. 30, 2013 Cancer Genetics Italia SRL [Member]	Sep. 30, 2012 Cancer Genetics Italia SRL [Member]	Dec. 31, 2012 Cancer Genetics Italia SRL [Member]	Apr. 10, 2013 IPO [Member]	Aug. 19, 2013 Secondary Offering [Member]	Sep. 30, 2013 Secondary Offering [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Total assets				$ 14,306,501		$ 14,306,501			$ 8,951,771			$ 349,000		$ 349,000		$ 329,000
Revenue				1,705,146	1,242,604	4,755,462	3,225,831					55,000	24,000	147,000	60,000
Reverse stock split ratio		0.4	0.5
Common stock, shares issued	690,000			5,965,340		5,965,340			1,349,936	3,286,700	10,000						690,000	1,500,000
Public offering price per share	$ 10.00									$ 14.00							$ 10.00	$ 10.00
Gross proceeds from public offering										46,000,000							6,900,000	15,000,000
Net proceeds from initial public offering						4,984,025	(1,190,609)			42,200,000							5,000,000
Aggregate number of Series A and Series B convertible preferred stock converted into common stock	1,287,325
Fair value of derivative warrants	7,200,000					7,170,000
Value of debt converted	9,600,000
Conversion of debt into common stock	963,430					12,596,066
Net proceeds from secondary public offering										42,200,000								13,300,000
Amount used for repayment of certain indebtedness																			3,500,000
Additional common stock sold at public offering								105,000											105,000
Additional gross proceeds from issuance of shares								1,100,000											1,100,000
Additional net proceeds from issuance of shares								$ 947,000											$ 947,000
Underwriter's overallotment shares	90,000									428,700

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Revenue and Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2013

Text Block [Abstract]

Schedule of Revenue by Payor Type

Revenue by payor type for the three and nine months ended September 30, 2013 and 2012 is comprised of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Medicare	$	229,723	$	178,291	$	637,838	$	586,896
Direct bill (including clinical trials clients)		1,060,684		473,965		2,798,883		1,158,212
Grants and royalty		100,000		279,973		100,000		474,973
Insurance carrier and all others		314,739		310,375		1,218,741		1,005,750
	$	1,705,146	$	1,242,604	$	4,755,462	$	3,225,831

Schedule of Accounts Receivable by Payor Type

Accounts receivable by payor type at September 30, 2013 and December 31, 2012 consists of the following:

	September 30, 2013			December 31, 2012
Medicare	$	520,153		$	193,024
Direct bill (including clinical trials clients)		585,034			339,763
Insurance carrier and all others		546,947			353,758
Allowance for doubtful accounts		(36,000	)		(36,000	)
	$	1,616,134		$	850,545

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Stock Option Plans - Summary of Employee and Nonemployee Stock Option Activity (Detail) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2011
Options Outstanding, Number of Shares Outstanding
Beginning balance	553,340	559,990
Granted	59,350	2,400
Cancelled or expired	(106,396)	(9,050)
Ending balance	506,294	553,340	559,990
Exercisable	393,580
Options Outstanding, Weighted-Average Exercise Price
Beginning balance	$ 12.76	$ 12.85
Granted	$ 10.17	$ 33.80
Cancelled or expired	$ 20.46	$ 23.43
Ending balance	$ 7.60	$ 12.76	$ 12.85
Exercisable	$ 7.00
Weighted-Average Remaining Contractual Term (in years)
Outstanding	6 years 6 months 11 days	7 years 1 month 17 days	8 years 1 month 6 days
Exercisable	6 years 2 months 27 days
Aggregate Intrinsic Value
Outstanding, beginning balance	$ 1,142,432	$ 11,737,710
Outstanding, ending balance	6,407,644	1,142,432	11,737,710
Exercisable	$ 5,220,243

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Fair Value Measurements - Summary of Financial Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability	$ 1,178,000	$ 12,549,000
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability	$ 1,178,000	$ 12,549,000

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Notes Payable and Lines of Credit - Additional Information (Detail) (USD $)	1 Months Ended	9 Months Ended				1 Months Ended			1 Months Ended			1 Months Ended	9 Months Ended				1 Months Ended		1 Months Ended			1 Months Ended	9 Months Ended				1 Months Ended				1 Months Ended			9 Months Ended					0 Months Ended			1 Months Ended		9 Months Ended						6 Months Ended
	Apr. 10, 2013	Sep. 30, 2013	Aug. 19, 2013	Dec. 31, 2012	Apr. 10, 2013 IPO [Member]	Apr. 10, 2013 John Pappajohn [Member]	Sep. 30, 2013 John Pappajohn [Member]	Sep. 30, 2013 John Pappajohn [Member] Financial Guarantee [Member]	Apr. 10, 2013 NNJCA [Member]	Sep. 30, 2013 NNJCA [Member]	Sep. 30, 2013 NNJCA [Member] Financial Guarantee [Member]	Apr. 10, 2013 December 2011 Financing Transaction [Member]	Sep. 30, 2013 December 2011 Financing Transaction [Member]	Aug. 19, 2013 December 2011 Financing Transaction [Member]	Dec. 31, 2012 December 2011 Financing Transaction [Member]	Apr. 10, 2013 December 2011 Financing Transaction [Member] IPO [Member]	Apr. 10, 2013 December 2011 Financing Transaction [Member] John Pappajohn [Member]	Sep. 30, 2013 December 2011 Financing Transaction [Member] John Pappajohn [Member]	Apr. 10, 2013 December 2011 Financing Transaction [Member] NNJCA [Member]	Sep. 30, 2013 December 2011 Financing Transaction [Member] NNJCA [Member]	Sep. 30, 2013 December 2011 Financing Transaction [Member] Dr. Pecora [Member]	Apr. 10, 2013 2012 Convertible Debt Financing Transaction [Member]	Sep. 30, 2013 2012 Convertible Debt Financing Transaction [Member]	Dec. 31, 2012 2012 Convertible Debt Financing Transaction [Member]	Sep. 30, 2013 2012 Convertible Debt Financing Transaction [Member] IPO [Member]	Apr. 10, 2013 2012 Convertible Debt Financing Transaction [Member] IPO [Member]	Feb. 22, 2013 2012 Convertible Debt Financing Transaction [Member] John Pappajohn [Member]	Apr. 10, 2013 2012 Convertible Debt Financing Transaction [Member] John Pappajohn [Member]	Sep. 30, 2013 2012 Convertible Debt Financing Transaction [Member] John Pappajohn [Member] Financial Guarantee [Member]	Apr. 10, 2013 2012 Convertible Debt Financing Transaction [Member] Mr. Oman [Member]	Aug. 19, 2013 Business Lines of Credit (DAM) [Member]	Apr. 10, 2013 Business Lines of Credit (DAM) [Member]	Feb. 13, 2013 Business Lines of Credit (DAM) [Member]	Sep. 30, 2012 Business Lines of Credit (DAM) [Member]	Sep. 30, 2013 Business Lines of Credit (DAM) [Member]	Mar. 19, 2013 Business Lines of Credit (DAM) [Member]	Dec. 31, 2012 Business Lines of Credit (DAM) [Member]	Apr. 10, 2013 Business Lines of Credit (DAM) [Member] IPO [Member]	Apr. 10, 2013 Other Note Payable [Member]	Sep. 30, 2013 Other Note Payable [Member]	Dec. 31, 2012 Other Note Payable [Member]	Apr. 10, 2013 December 2012 Bridge Financing Transaction [Member]	Dec. 07, 2012 December 2012 Bridge Financing Transaction [Member]	Sep. 30, 2013 December 2012 Bridge Financing Transaction [Member]	Dec. 31, 2012 December 2012 Bridge Financing Transaction [Member]	Sep. 30, 2013 December 2012 Bridge Financing Transaction [Member] IPO [Member]	Dec. 07, 2012 December 2012 Bridge Financing Transaction [Member] IPO [Member]	Dec. 07, 2012 December 2012 Bridge Financing Transaction [Member] John Pappajohn [Member]	Sep. 30, 2013 December 2012 Bridge Financing Transaction [Member] John Pappajohn [Member] Financial Guarantee [Member]	Sep. 30, 2013 Wells Fargo Bank [Member]	Sep. 30, 2013 Secured Note Payable [Member]	Dec. 31, 2012 Secured Note Payable [Member]
Debt Instrument [Line Items]
Borrowings from utilization of line of credit																																																		$ 6,000,000
Debt instrument spread on variable rate		6.25%											6.25%										6.25%																					6.25%						1.75%
Debt instrument maturity date		Apr. 01, 2014																																Aug. 15, 2013																Apr. 01, 2014
Interest on line of credit at end period																																																		2.00%
Secured note interest																																								8.50%											18.00%
Secured note outstanding																																																			43,622	102,165
Remaining debt discount after conversion	3,500,000			128,800
Accrued fee on debt instrument	419,000	130,000											130,000																					52,500
Recognizable conversion feature in converted debt	3,000,000
Debt outstanding under credit agreement							500,000			1,500,000			0		6,000,000			4,000,000		1,500,000	500,000	3,000,000						1,750,000		1,250,000																		1,000,000
Conversion of outstanding debt to common stock	9,600,000					500,000						4,500,000					4,000,000		500,000			3,000,000										1,000,000	1,000,000									1,000,000
Common Shares	963,430	12,596,066							50,000			450,000							450,000			300,000										100,000							13,430			100,000	100,000
Conversion price of notes					$ 10.00											$ 10.00									$ 10.00	$ 10.00												$ 10	$ 10.00					$ 42.50		$ 10.00	$ 10.00
Outstanding balance, repaid			1,500,000
Interest rate at period end		9.50%												9.50%									9.50%																					9.50%
Debt instrument amount paid upon conversion of the notes		32,667											32,667
IPO funding period																							181 days
Warrants duration																							10 years																					10 years
Warrants to purchase aggregate common stock																							7,059																					2,353
Exercise price		$ 12.30																					$ 42.50				$ 15.00																	$ 42.50
Warrants outstanding per share							$ 15.00	$ 15.00			$ 4.00																		$ 15.00																				$ 15.00
Line of credit outstanding under credit agreement																																			0	2,000,000	3,000,000
Line of credit, indebtedness																																1,000,000
Line of credit, repaid																															2,000,000
Annual interest rate equal to prime rate																																		10.00%
Notes payable, long-term				2,440,683											2,000,000									3,000,000																	100,000				1,000,000							22,298
Accrued interest on notes payable																																									$ 34,300

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Revenue and Accounts Receivable - Schedule of Revenue by Payor Type (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Revenue	$ 1,705,146	$ 1,242,604	$ 4,755,462	$ 3,225,831
Medicare [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Revenue	229,723	178,291	637,838	586,896
Direct Bill (Including Clinical Trials Clients) [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Revenue	1,060,684	473,965	2,798,883	1,158,212
Grants and Royalty [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Revenue	100,000	279,973	100,000	474,973
Insurance Carrier and All Others [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Revenue	$ 314,739	$ 310,375	$ 1,218,741	$ 1,005,750

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Revenue and Accounts Receivable - Schedule of Accounts Receivable by Payor Type (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	$ (36,000)	$ (36,000)
Accounts receivable, net	1,616,134	850,545
Medicare [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	520,153	193,024
Direct Bill (Including Clinical Trials Clients) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	585,034	339,763
Insurance Carrier and All Others [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 546,947	$ 353,758

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Stock Option Plans

9 Months Ended

Sep. 30, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Option Plans

Note 7. Stock Option Plans

We have two equity incentive plans: the 2008 Stock Option Plan (the “2008 Plan”) and the 2011 Equity Incentive Plan (the “2011 Plan”, and together with the 2008 Plan, the “Stock Option Plans”). The 2011 Plan was approved by the Board of Directors on June 30, 2011 and was subsequently ratified by stockholders. The 2011 Plan authorizes the issuance of up to 350,000 shares of common stock under several types of equity awards including stock options, stock appreciation rights, restricted stock awards and other awards defined in the 2011 Plan. There have been no awards under the 2011 Plan.

The Board of Directors adopted the 2008 Plan on April 29, 2008 and reserved 251,475 shares of common stock for issuance under the plan. On April 1, 2010, the stockholders voted to increase the number of shares reserved by the plan to 550,000. The 2008 Plan is meant to provide additional incentive to officers, employees and consultants to remain in our employment. We are authorized to issue incentive stock options or non-statutory stock options to eligible participants. Options granted are generally exercisable for up to 10 years.

At September 30, 2013, 91,706 shares remain available for future awards under the 2008 Plan and 350,000 shares remain available for future awards under the 2011 Plan.

As of September 30, 2013, no stock appreciation rights, restricted stock, or awards other than stock options had been awarded under the Stock Option Plans.

We have also issued 48,000 options outside of the Stock Option Plans.

The Board of Directors authorized an offer to certain employee options holders on the following terms: those employees holding stock options with a strike price of $25.00 or more had the opportunity to exchange their options for 60% of the number of options currently held with an exercise price equal to the IPO price, which was $10.00 per share, and those employees holding stock options with a strike price of $12.50 had the opportunity to exchange their options for 80% of the number of options currently held with an exercise price equal to the IPO price which was $10.00 per share. On April 5, 2013, our initial public offering became effective and 336,300 options with exercise prices ranging from $12.50 to $33.80 were exchanged for 242,070 options with an exercise price of $10.00. In addition, 53,500 options which were approved to be issued and priced at the IPO price were issued to employees with an exercise price of $10.00 per share.

On April 17, 2013, we issued 5,850 options to employees with an exercise price of $11.75 per share as approved by the Board of Directors.

A summary of employee and nonemployee stock option activity for year ended December 31, 2012 and the nine months ended September 30, 2013 is as follows:

	Options Outstanding					Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
	Number of Shares			Weighted- Average Exercise Price
Outstanding January 1, 2012		559,990		$	12.85		8.10	$	11,737,710
Granted		2,400			33.80
Cancelled or expired		(9,050	)		23.43
Outstanding December 31, 2012		553,340		$	12.76		7.13	$	1,142,432
Granted		59,350			10.17
Cancelled or expired		(106,396	)		20.46
Outstanding September 30, 2013		506,294		$	7.60		6.53	$	6,407,644
Exercisable, September 30, 2013		393,580		$	7.00		6.24	$	5,220,243

Aggregate intrinsic value represents the difference between the estimated fair value of our common stock and the exercise price of outstanding, in-the-money options. The estimated fair value of our common stock was $20.26 and $9.60 as of September 30, 2013 and December 31, 2012, respectively. No options were exercised during the nine months ended September 30, 2013 and 2012.

As of September 30, 2013 and December 31, 2012, total unrecognized compensation cost related to nonvested stock options granted to employees was $768,129 and $846,810 respectively, which we expect to recognize over the next 2.57 and 2.61 years, respectively.

As of September 30, 2013 there was no unrecognized compensation cost related to nonvested stock options granted to non-employees. As of December 31, 2012, total unrecognized compensation cost related to nonvested stock options granted to non-employees was $190,500, which was recognized over the first six months of 2013. The estimate of unrecognized nonemployee compensation is based on the fair value of the nonvested options as of December 31, 2012.

The following table summarizes information about outstanding and vested stock options granted to employees and non-employees as of September 30, 2013 as follows:

	Options Outstanding						Options Vested and Exercisable
Exercise Price	Number of Shares Outstanding		Weighted- Average Remaining Contractual Life (in years)		Weighted- Average Exercise Price		Number of Shares		Weighted- Average Exercise Price
4.00		175,000		5.58	$	4.00		175,000	$	4.00
4.80		33,340		6.30		4.80		25,459		4.80
10.00		292,154		7.06		10.00		193,011		10.00
11.75		5,600		9.54		11.75		—		11.75
12.50		200		7.19		12.50		110		12.50
Total		506,294		6.53	$	7.60		393,580	$	7.00

The fair value of options granted to employees is estimated on the grant date using the Black-Scholes option valuation model. This valuation model for stock-based compensation expense requires us to make assumptions and judgments about the variables used in the calculation, including the fair value of our common stock (see Note 9), the expected term (the period of time that the options granted are expected to be outstanding), the volatility of our common stock, a risk-free interest rate, and expected dividends. We also estimate forfeitures of unvested stock options. To the extent actual forfeitures differ from the estimates, the difference will be recorded as a cumulative adjustment in the period estimates are revised. No compensation cost is recorded for options that do not vest. We use the simplified calculation of expected life described in the SEC’s Staff Accounting Bulletin No. 107, Share-Based Payment, and volatility is based on an average of the historical volatilities of the common stock of four entities with characteristics similar to those of the Company. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option. We use an expected dividend yield of zero, as we do not anticipate paying any dividends in the foreseeable future. Expected forfeitures are assumed to be zero due to the small number of plan participants and the plan design which has monthly vesting after an initial cliff vesting period.

The following table presents the weighted-average assumptions used to estimate the fair value of options granted to employees during the periods presented:

	Nine Months Ended September 30,
	2013			2012
Volatility		77.11	%		77.39	%
Risk free interest rate		0.76	%		1.43	%
Dividend yield		0.00	%		0.00	%
Term (years)		5.95			6.50
Weighted-average fair value of options granted during the period	$	6.72		$	9.34

There were no options granted during the three months ended September 30, 2013 and 2012.

In 2010, we issued an aggregate of 80,000 options to non-employees with an exercise price of $25.00. As described above, on April 5, 2013, these options were exchanged for 48,000 options with an exercise price of $10.00. The following table presents the weighted-average assumptions used to estimate the fair value of options reaching their measurement date for non-employees during the periods presented:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Volatility		75.32	%		75.23	%		75.87	%		75.01	%
Risk free interest rate		1.93	%		1.04	%		1.40	%		1.31	%
Dividend yield		0.00	%		0.00	%		0.00	%		0.00	%
Term (years)		7.21			8.10			7.50			8.35

The following table presents the effects of stock-based compensation related to stock option awards to employees and nonemployees on our Statement of Operations during the periods presented:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Cost of revenues	$	8,442	$	1,126	$	22,621	$	9,557
Research and development		28,516		120,183		119,314		389,295
General and administrative		71,268		62,426		223,535		223,150
Sales and marketing		9,107		17,748		41,731		144,165
Total stock-based compensation	$	117,333	$	201,483	$	407,202	$	766,167

Subsequent Events

On October 3, 2013, the Company received $1,640 from a former employee who exercised options to purchase 164 shares of common stock at $10.00 per share.

On October 8, 2013, the Compensation Committee of the Company’s Board of Directors (the “Compensation Committee”) granted eight employees incentive stock options to purchase a total of 19,600 shares of the Company’s common stock at an exercise price of $19.88 per share (the closing price of a share of common stock on The NASDAQ Capital Market on October 7, 2013). The options are scheduled to vest over a period of five years.

On October 10, 2013 (the “Grant Date”), the Compensation Committee granted each the Company’s Chief Executive Officer and Vice President Research and Development an option to purchase 200,000 shares and 10,000 shares, respectively, of the Company’s common stock at an exercise price of $15.39 per share (the closing price of a share of common stock on The NASDAQ Capital Market on the business day immediately prior to the Grant Date). The options are scheduled to expire on the tenth anniversary of the Grant Date and are scheduled to vest over a period of five years from the Grant Date. The vesting of the option granted to the Chief Executive Officer may be accelerated upon the achievement of certain milestones. In addition, the Company committed to issue 50,000 restricted shares of common stock to the Chief Executive Officer.

On October 10, 2013, the Company granted each non-employee director, other than the chairman of the board, options to purchase 10,000 shares of Common Stock at an exercise price of $15.39 (the closing price of a share of common stock on The NASDAQ Capital Market on October 9, 2013), resulting in a total grant of 60,000 options. In addition, the Company granted Mr. Brownlie, the chairman of the audit committee, options to purchase 12,312 shares of Common Stock at an exercise price of $15.39 and the Company granted Mr. Thompson 2,500 fully vested shares of restricted stock in recognition of his past service as chairman of the audit committee.

On October 10, 2013, the Compensation Committee granted 12 employees incentive stock options to purchase a total of 77,000 shares of the Company’s common stock at an exercise price of $15.39 per share (the closing price of a share of common stock on The NASDAQ Capital Market on October 9, 2013). The options are scheduled to vest over a period of five years.

On October 10, 2013, the Company’s board of directors adopted a compensation policy for its non-employee directors, other than the chairman of the board who is compensated pursuant to the terms of a separate consulting agreement. This policy provides for the following cash compensation to the Company’s non-employee directors, other than the chairman of the board:

• each non-employee director will receive an annual base fee of $10,000; and

• in addition to the $10,000 annual base fee, the chairman of the audit committee will receive an annual fee of $10,000.

This policy provides for the following equity compensation to the Company’s non-employee directors, other than our chairman of the board:

• each non-employee director, other than the chairman of the board, will receive bi-annual restricted stock awards of 5,000 shares of common stock; and

• each non-employee director, other than the chairman of the board, will receive annual option grants to purchase 10,000 shares of common stock.

The restricted stock awards and option grants will each vest in two equal annual installments. Equity grants under the director compensation policy are subject to the adoption of a new equity plan or amendment to increase the shares available for issuance under the 2011 Plan.

All fees under the director compensation policy will be paid on a quarterly basis and no per meeting fees will be paid. The Company will also reimburse non-employee directors for reasonable expenses incurred in connection with attending board and committee meetings.

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Organization, Description of Business, Reverse Stock Splits and Initial Public Offering - Schedule of Net Proceeds from Public Offering (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Subsequent Event [Line Items]
Estimated other offering costs			$ (3,343,289)
Pro forma net proceeds	4,984,025	(1,190,609)
Pro Forma [Member]
Subsequent Event [Line Items]
Gross proceeds (including over-allotment)	46,013,800
Underwriting discounts, expenses and commissions	(3,446,792)
Estimated other offering costs	(315,850)
Pro forma net proceeds	$ 42,251,158.0

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Capital Stock - Additional Information (Detail) (USD $)	1 Months Ended				1 Months Ended		0 Months Ended			1 Months Ended		1 Months Ended
	Apr. 10, 2013	Sep. 30, 2013	Sep. 05, 2013	Dec. 31, 2012	Aug. 19, 2013 Secondary Offering [Member]	Sep. 30, 2013 Secondary Offering [Member]	Oct. 28, 2013 Subsequent Event	Oct. 31, 2013 Subsequent Event	Apr. 10, 2013 Cleveland Clinic [Member]	Apr. 10, 2013 Series A Preferred Stock [Member]	Dec. 31, 2012 Series A Preferred Stock [Member]	Apr. 10, 2013 Series B Preferred Stock [Member]	Dec. 31, 2012 Series B Preferred Stock [Member]
Common stock, shares issued	690,000	5,965,340		1,349,936	1,500,000		3,286,700	10,000	2,000
Underwriter's overallotment shares	90,000						428,700
Common stock sold at IPO, price per share	$ 10.00				$ 10.00		$ 14.00
Number of shares converted to common stock	1,287,325									376,525		910,800
Gross proceeds from public offering					$ 15,000,000		$ 46,000,000
Net proceeds from secondary public offering					13,300,000		42,200,000
Additional common stock sold at public offering			105,000			105,000
Gross proceeds from issuance of shares			1,100,000			1,100,000
Additional net proceeds from issuance of shares			$ 947,000			$ 947,000
Preferred stock, shares authorized		9,764,000									588,000		2,000,000

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Fair Value Measurements

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 10. Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The Fair Value Measurements and Disclosures Topic of the FASB Accounting Standards Codification requires the use of valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. Inputs to valuation techniques refer to the assumptions that market participants would use in pricing the asset or liability. Inputs may be observable, meaning those that reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from independent sources, or unobservable, meaning those that reflect our own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. In that regard, the Topic establishes a fair value hierarchy for valuation inputs that give the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that we have the ability to access as of the measurement date.

Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect our own assumptions about the assumptions that market participants would use in pricing an asset or liability.

The following table summarizes the financial liabilities measured at fair value on a recurring basis segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value:

	September 30, 2013
	Total		Quoted Prices in         Active Markets for         Identical Assets         (Level 1)		Significant Other         Observable         Inputs         (Level 2)		Significant         Unobservable         Inputs         (Level 3)
Warrant liability	$	1,178,000		—		—	$	1,178,000

	December 31, 2012
	Total		Quoted Prices in         Active Markets for         Identical Assets         (Level 1)		Significant Other         Observable         Inputs         (Level 2)		Significant         Unobservable         Inputs         (Level 3)
Warrant liability	$	12,549,000		—		—	$	12,549,000

The warrant liability consists of stock warrants we issued that contain an exercise price adjustment feature. In accordance with derivative accounting for warrants, we calculated the fair value of warrants and the assumptions used are described in Note 9, “Fair Value of Warrants”. Realized and unrealized gains and losses related to the change in fair value of the warrant liability are included in Other income (expense) on the Statement of Operations.

The following table reflects the activity for liabilities measured at fair value using Level 3 inputs for the nine months ended September 30:

	2013			2012
Balance as of January 1	$	12,549,000		$	11,113,000
Issuances of derivative financial instruments		268,000			3,678,000
Derivative financial instruments reclassified to equity in IPO		(7,170,000	)		—
Derivative financial instruments reclassified to equity upon exercise		(373,000	)		—
Unrealized (gain) loss related to change in fair value		(4,096,000	)		(6,370,000	)
Balance as of September 30	$	1,178,000		$	8,421,000

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Capital Stock

9 Months Ended

Sep. 30, 2013

Equity [Abstract]

Capital Stock

Note 6. Capital Stock

On April 10, 2013, we completed our IPO in which we issued and sold 690,000 shares of common stock (including the underwriter’s overallotment of 90,000 shares) at a public offering price of $10.00 per share. In connection with the offering, all outstanding shares of Series A preferred stock were converted into 376,525 shares of common stock, and all outstanding shares of Series B preferred stock were converted into 910,800 shares of common stock. Concurrent with the IPO, we issued 2,000 shares of common stock to Cleveland Clinic pursuant to our license agreement with Cleveland Clinic.

On August 19, 2013, we sold 1,500,000 shares of common stock at a public offering price of $10.00 per share resulting in gross proceeds of $15.0 million ($13.3 million of net proceeds after offering expenses and underwriting discounts).

On September 5, 2013, we sold 105,000 additional common shares pursuant to the underwriter’s partial exercise of the over-allotment option which resulted in gross proceeds of $1.1 million ($947,000 of net proceeds after offering expenses and underwriting discounts).

We are currently authorized to issue up to 9,764,000 shares of preferred stock.

Subsequent Event

On October 28, 2013, we sold 3,286,700 shares of common stock, (including the underwriter’s overallotment of 428,700 shares), at a public offering price of $14.00 per share resulting in gross proceeds of $46.0 million (net proceeds of $42.2 million).

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Organization, Description of Business, Reverse Stock Splits and Initial Public Offering

9 Months Ended

Sep. 30, 2013

Accounting Policies [Abstract]

Organization, Description of Business, Reverse Stock Splits and Initial Public Offering

Note 1. Organization, Description of Business, Reverse Stock Splits and Initial Public Offering

We were incorporated in the State of Delaware on April 8, 1999 and have offices and a laboratory located in Rutherford, New Jersey. Our wholly owned subsidiary, Cancer Genetics Italia SRL (“CGI Italia”), manages the manufacturing and manufactures DNA probes. CGI Italia had approximately $349,000 and $329,000 in total assets at September 30, 2013 and December 31, 2012, respectively, and approximately $55,000 and $24,000 in total revenue for the three months ended September 30, 2013 and 2012, and approximately $147,000 and $60,000 in total revenue for the nine months ended September 30, 2013 and 2012 respectively.

We are a diagnostics company focused on developing and commercializing proprietary genomic tests and services to improve the diagnosis, prognosis and response to treatment of cancer (theranosis). Our proprietary tests target cancers where prognosis information is critical and where predicting treatment outcomes using currently available techniques is limited. These cancers include hematological, urogenital and HPV-associated cancers. We have commercially launched MatBA^® -CLL, -SLL, DLBCL and UroGenRA kidney as lab developed tests in the United States, and seek to provide our tests and services to oncologists and pathologists at hospitals, cancer centers and physician offices, as well as to biopharmaceutical companies and clinical research organizations for their clinical trials.

Reverse Stock Splits

On February 8, 2013, we filed a charter amendment with the Secretary of State for the State of Delaware and effected a 1-for-2 reverse stock split of our common stock. On March 1, 2013, we filed another charter amendment with the Secretary of State for the State of Delaware and effected a 1-for-2.5 reverse stock split of our common stock. All shares and per share information referenced throughout the consolidated financial statements have been retroactively adjusted to reflect both reverse stock splits.

Public Offerings

On April 10, 2013, we sold 690,000 shares of common stock at a public offering price of $10.00 per share and completed our initial public offering (“IPO”) with gross proceeds of $6.9 million (net proceeds of $5 million). Upon the closing of the IPO, all shares of our then-outstanding Series A and Series B convertible preferred stock automatically converted into an aggregate of 1,287,325 shares of common stock. Concurrent with the IPO, certain derivative warrants with a fair value of $7.2 million were reclassified into equity due to the lapsing of anti-dilution provisions in the warrants. Also concurrent with the IPO, $9.6 million of debt converted into 963,430 shares of common stock. All references to our Series A convertible preferred stock in this quarterly report on Form 10-Q refer collectively to the Series A and Series A-1 convertible preferred shares.

On August 19, 2013, we sold 1,500,000 shares of common stock at a public offering price of $10.00 per share resulting in gross proceeds of $15.0 million (net proceeds of $13.3 million). We used $3.5 million of the proceeds to repay certain indebtedness which was due on August 15, 2013 (see Note 4 for further discussion of the Company’s debt). On September 5, 2013, we sold 105,000 additional common shares pursuant to partial exercise of the underwriter’s over-allotment option which resulted in gross proceeds of $1.1 million (net proceeds of $947,000). All references to the sales of common stock mentioned in this paragraph are referred to as the “Secondary Offering” in this quarterly report on Form 10-Q.

Subsequent Event

On October 28, 2013, we sold 3,286,700 shares of common stock, (including the underwriter’s overallotment of 428,700 shares), at a public offering price of $14.00 per share resulting in gross proceeds of $46.0 million. Net proceeds of $42.2 million were available to us from the public offering and were determined as follows:

Gross proceeds (including over-allotment)	$	46,013,800
Underwriting discounts, expenses and commissions		(3,446,792	)
Estimated other offering costs		(315,850	)
Pro forma net proceeds	$	42,251,158

The following table summarizes certain actual balance sheet data and pro forma balance sheet data to reflect the activities related to our recent public offering noted above, as of September 30, 2013:

	September 30, 2013			Pro forma September 30, 2013
Cash and cash equivalents	$	9,878,176		$	52,129,334
Loan guarantee and financing fees		621,000			621,000
Accounts payable and accrued expenses		1,807,081			1,807,081
Notes payable, current portion		43,622			43,622
Line of credit		6,000,000			6,000,000
Warrant liability		1,178,000			1,178,000
Common stock		597			925
Additional paid-in capital		63,681,317			105,932,147
Accumulated deficit	$	(58,800,191	)	$	(58,800,191	)

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Fair Value of Warrants - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Minimum [Member]	Sep. 30, 2012 Minimum [Member]	Sep. 30, 2013 Maximum [Member]	Sep. 30, 2012 Maximum [Member]
Class of Warrant or Right [Line Items]
Fair value of stock price in computing fair value for warrants issued			$ 9.60	$ 18.70	$ 20.26	$ 33.80
Fair value of warrants issue price	$ 20.26	$ 9.60

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Stock Option Plans - Effects of Stock-Based Compensation Related to Stock Option Awards (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Total stock-based compensation	$ 117,333	$ 201,483	$ 310,982	$ 766,167
Cost of Revenues [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Total stock-based compensation	8,442	1,126	22,621	9,557
Research and Development [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Total stock-based compensation	28,516	120,183	119,314	389,295
General and Administrative [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Total stock-based compensation	71,268	62,426	223,535	223,150
Selling and Marketing [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Total stock-based compensation	$ 9,107	$ 17,748	$ 41,731	$ 144,165

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Significant Accounting Policies - Computation of Basic Net Income (Loss) and Diluted Net Loss Per Share Data (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:
Net income (loss)	$ (3,066,376)	$ 311,588	$ (9,848,164)	$ (2,621,390)
Less gain in fair value of warrant liability	(1,033,000)	3,334,000	4,096,000	6,370,000
Net (loss) for diluted earnings per share	$ (3,066,376)	$ (3,022,412)	$ (13,944,164)	$ (8,991,390)
Denominator:
Weighted-average basic common shares outstanding	5,055,591	1,346,124	3,463,730	1,340,530
Assumed conversion of dilutive securities:
Common stock purchase warrants		9,554	4,897	9,554
Potentially dilutive common shares		9,554	4,897	9,554
Denominator for diluted earnings per share-adjusted weighted-average shares	5,055,591	1,355,678	3,468,627	1,350,084
Basic net income (loss) per share	$ (0.61)	$ 0.23	$ (2.84)	$ (1.96)
Diluted net loss per share	$ (0.61)	$ (2.23)	$ (4.02)	$ (6.66)

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Contingencies

9 Months Ended

Sep. 30, 2013

Commitments And Contingencies Disclosure [Abstract]

Contingencies

Note 13. Contingencies

In the normal course of business, the Company may become involved in various claims and legal proceedings. In the opinion of management, the ultimate liability or disposition thereof is not expected to have a material adverse effect on our financial condition, results of operations, or liquidity.

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Fair Value of Warrants

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Fair Value of Warrants

Note 9. Fair Value of Warrants

The following tables summarize the assumptions used in computing the fair value of derivative warrants subject to fair value accounting at the date of issue during the nine months ended September 30, 2013 and 2012 and at September 30, 2013, April 5, 2013 (IPO valuation date) and December 31, 2012. In computing the fair value of the warrants, if the stated exercise price of the warrants exceeded the assumed value of the Company stock at the date the fair value was being computed, the exercise price and number of shares (if applicable) underlying the warrants were adjusted to reflect an assumed trigger of the price and/or share adjustment features related to the applicable warrants:

Debt Guarantee	Issued During the Nine Months Ended September 30, 2012			As of September 30, 2013			As of April 5, 2013			As of December 31, 2012
Exercise Price	$	42.50		$	10.00		$	13.56		$	9.60
Expected life (years)		4.73			1.08			2.42			2.66
Expected volatility		80.47	%		57.51	%		66.37	%		67.71	%
Risk-free interest rate		0.90	%		0.10	%		0.32	%		0.37	%
Expected dividend yield		0.00	%		0.00	%		0.00	%		0.00	%

Series B	As of September 30, 2013			As of December 31, 2012
Exercise Price	$	10.00		$	9.60
Expected life (years)		2.17			2.92
Expected volatility		65.18	%		61.44	%
Risk-free interest rate		0.33	%		0.36	%
Expected dividend yield		0.00	%		0.00	%

Consulting	As of September 30, 2013			As of April 5, 2013			As of December 31, 2012
Exercise Price	$	10.00		$	10.00		$	9.60
Expected life (years)		2.39			2.33			2.48
Expected volatility		63.81	%		63.20	%		63.29	%
Risk-free interest rate		0.33	%		0.27	%		0.28	%
Expected dividend yield		0.00	%		0.00	%		0.00	%

	Issued During the Nine Months Ended September 30,						Issued During the Three Months Ended September 30, 2012			As of September  30, 2013			As of April  5, 2013			As of December  31, 2012
Financing	2013			2012
Exercise Price	$	13.34		$	42.50		$	42.50		$	10.00		$	13.21		$	9.60
Expected life (years)		9.78			4.93			5.08			2.50			8.30			6.66
Expected volatility		74.70	%		79.41	%		79.36	%		63.12	%		73.22	%		73.38	%
Risk-free interest rate		1.95	%		0.79	%		0.71	%		0.63	%		1.44	%		1.06	%
Expected dividend yield		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%		0.00	%

The assumed Company stock price used in computing the warrant fair value for warrants issued during the nine months ended September 30, 2013 was $9.60 – $20.26 and $18.70 – $33.80 for the nine months ended September 30, 2012. In determining the fair value of warrants issued at each reporting date, the assumed Company stock price was $20.26 at September 30, 2013 and $9.60 at December 31, 2012.

The following table summarizes the derivative warrant activity subject to fair value accounting for the nine months ended September 30, 2013:

Issued with/for	Fair value of warrants outstanding as of December 31, 2012		Fair value of warrants issued		Reclassification to equity in IPO			Warrants Exercised			Change in fair value of warrants			Fair value of warrants outstanding as of September 30, 2013
Series B Preferred Stock	$	230,000	$	—	$	—		$	(373,000	)	$	422,000		$	279,000
Debt Guarantee		5,679,000		—		(2,514,000	)		—			(3,026,000	)		139,000
Consulting		147,000		—		(108,000	)		—			(36,000	)		3,000
Financing		6,493,000		268,000		(4,548,000	)		—			(1,456,000	)		757,000
	$	12,549,000	$	268,000	$	(7,170,000	)	$	(373,000	)	$	(4,096,000	)	$	1,178,000

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Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2013

Accounting Policies [Abstract]

Computation of Basic Net Income (Loss) and Diluted Net Loss Per Share Data

Basic net income (loss) and diluted net loss per share data were computed as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Numerator:
Net income (loss) for basic earnings per share	$	(3,066,376	)	$	311,588		$	(9,848,164	)	$	(2,621,390	)
Less gain in fair value of warrant liability		—			3,334,000			4,096,000			6,370,000
Net (loss) for diluted earnings per share	$	(3,066,376	)	$	(3,022,412	)	$	(13,944,164	)	$	(8,991,390	)
Denominator:
Weighted-average basic common shares outstanding		5,055,591			1,346,124			3,463,730			1,340,530
Assumed conversion of dilutive securities:
Common stock purchase warrants		—			9,554			4,897			9,554
Potentially dilutive common shares		—			9,554			4,897			9,554
Denominator for diluted earnings per share—adjusted weighted-average shares		5,055,591			1,355,678			3,468,627			1,350,084
Basic net income (loss) per share	$	(0.61	)	$	0.23		$	(2.84	)	$	(1.96	)
Diluted net loss per share	$	(0.61	)	$	(2.23	)	$	(4.02	)	$	(6.66	)

Summary of Potentially Dilutive Adjustments to Weighted Average Number of Common Shares Excluded from Calculation

The following table summarizes potentially dilutive adjustments to the weighted average number of common shares which were excluded from the calculation:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Common stock purchase warrants		1,843,582		955,458		1,843,582		955,458
Stock options		506,294		553,580		506,294		553,580
Common shares issuable upon conversion of Series A Preferred Stock		—		352,614		—		352,614
Common shares issuable upon conversion of Series B Preferred Stock		—		364,320		—		364,320
		2,349,876		2,225,972		2,349,876		2,225,972

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Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2013

Accounting Policies [Abstract]

Basis of presentation

Basis of presentation: The accompanying unaudited financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions for interim reporting as they are prescribed by the Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary to make the financial statements not misleading have been included. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the audited consolidated financial statements as of and for the year ended December 31, 2012 that are included in our prospectus filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933, on October 23, 2013 (Prospectus). The consolidated balance sheet as of December 31, 2012, included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP. Interim financial results are not necessarily indicative of the results that may be expected for future interim periods or for the year ending December 31, 2013.

Liquidity/Going Concern

Liquidity/Going Concern: Our primary sources of liquidity have been funds generated from debt financing, the sale of shares of common and preferred stock, grants in lieu of federal income tax credits, National Institute of Health grants and sales of state NOL carryforwards.

We believe our cash resources, prior to our latest offering of common stock, which was consummated on October 28, 2013, were sufficient to satisfy our liquidity requirements at our current level of operations through September 2014 and assuming we are able to secure an extension of the $6.0 million of indebtedness due April 1, 2014 through March 2015. We have commenced negotiations with Wells Fargo and with Mr. Pappajohn, who serves as a guarantor for such outstanding indebtedness, to further extend the maturity date. However, there can be no assurances that we will be successful. If we are not successful in obtaining an extension, we expect that we would use a portion of the net proceeds received from our latest offering of common stock, which was consummated on October 28, 2013, to repay that debt. Including the funds raised through the offering of common stock which was consummated on October 28, 2013, we believe that our current cash resources are sufficient to satisfy our liquidity requirements for at least two years even if we are unable to secure an extension of the Wells Fargo debt. Our forecast of the period of time through which our financial resources will be adequate to support our operations and the costs to support our general and administrative, sales and marketing and research and development activities are forward-looking statements and involve risks and uncertainties.

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. The Company has suffered recurring losses from operations and had negative working capital at September 30, 2013. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty. Refer to the section entitled “Capital Resources and Expenditure Requirements” in Item 2. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Form 10-Q of which these financial statements are a part.

Principles of consolidation

Principles of consolidation: The accompanying consolidated financial statements include the accounts of Cancer Genetics, Inc. and our wholly owned subsidiary, Cancer Genetics Italia S.r.L. All significant intercompany account balances and transactions have been eliminated in consolidation.

Use of estimates and assumptions

Use of estimates and assumptions: The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates made by management include, among others, realization of amounts billed, realization of long-lived assets, realization of intangible assets, accruals for registration payments and assumptions used to value stock options and warrants. Actual results could differ from those estimates.

Risks and uncertainties

Risks and uncertainties: We operate in an industry that is subject to intense competition, government regulation and rapid technological change. Our operations are subject to significant risk and uncertainties including financial, operational, technological, regulatory and other risks, including the potential risk of business failure.

Cash and cash equivalents

Cash and cash equivalents: Highly liquid investments with original maturities of three months or less when purchased are considered to be cash equivalents. Financial instruments which potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents. We maintain cash and cash equivalents with high-credit quality financial institutions. At times, such amounts may exceed insured limits. We have not experienced any losses in such accounts and believe we are not exposed to any significant credit risk on our cash and cash equivalents.

Revenue recognition

Revenue recognition: Revenue is recognized in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 605, Revenue Recognition, and ASC 954-605 Health Care Entities, Revenue Recognition which requires that four basic criteria must be met before revenue can be recognized: (1) persuasive evidence that an arrangement exists; (2) delivery has occurred and title and the risks and rewards of ownership have been transferred to the customer or services have been rendered; (3) the price is fixed or determinable; and (4) collectability is reasonably assured. In determining whether the price is fixed or determinable, we consider payment limits imposed by insurance carriers and Medicare and the amount of revenue recorded takes into account the historical percentage of revenue we have collected for each type of test for each payor category. Periodically, an adjustment is made to revenue to record differences between our anticipated cash receipts from insurance carriers and Medicare and actual receipts from such payors. For the periods presented, such adjustments were not significant. For direct bill customers (including clinical trials customers), revenue is recorded based upon the contractually agreed upon fee schedule. When assessing collectability, we consider whether we have sufficient payment history to reliably estimate a payor’s individual payment patterns. For new tests where there is no evidence of payment history at the time the tests are completed, we only recognize revenues once reimbursement experience can be established. We then recognize revenue equal to the amount of cash received. Sales of probes are recorded on the shipping date. We do not bill customers for shipping and handling fees and do not collect any sales or other taxes.

Revenues from grants to support product development are recognized when costs and expenses under the terms of the grant have been incurred and payments under the grants become contractually due.

Accounts receivable

Accounts receivable: Accounts receivable are carried at original invoice amount less an estimate for contractual adjustments and doubtful receivables, the amounts of which are determined by an analysis of individual accounts. Our policy for assessing the collectability of receivables is dependent upon the major payor source of the underlying revenue. For direct bill clients, an assessment of credit worthiness is performed prior to initial engagement and is reassessed periodically. If deemed necessary, an allowance is established on receivables from direct bill clients. For insurance carriers where there is not an established pattern of collection, revenue is not recorded until cash is received. For receivables where insurance carriers have made payments to patients instead of directing payments to the Company, an allowance is established for a portion of such receivables. After reasonable collection efforts are exhausted, amounts deemed to be uncollectible are written off against the allowance for doubtful accounts. Since the Company only recognizes revenue to the extent it expects to collect such amounts, bad debt expense related to receivables from patient service revenue is recorded in general and administrative expense in the consolidated statement of operations. Recoveries of accounts receivable previously written off are recorded when received.

Deferred Offering costs

Deferred Offering costs: Deferred offering costs represent legal, accounting and other direct costs related to our effort to raise capital through a stock offering. Future costs related to our offering activities will be deferred until the completion of the offering, at which time they will be reclassified to additional paid-in capital as a reduction of the offering proceeds. In connection with our IPO, $617,706 in deferred offering costs were expensed and approximately $2.5 million in deferred offering costs were reclassified to additional paid-in capital. Additionally, $733,250 in deferred offering costs were reduced due to discounts given by vendors associated with that offering and $120,000 was refunded. In connection with our Secondary Offering, we incurred $1.8 million in offering costs, all of which were reclassified to additional paid-in-capital.

Warrant liability

Warrant liability: We have issued certain warrants which contain an exercise price adjustment feature in the event we issue additional equity instruments at a price lower than the exercise price of the warrant. The warrants are described herein as derivative warrants. We account for these derivative warrants as liabilities. These common stock purchase warrants do not trade in an active securities market, and as such, we estimate the fair value of these warrants using the binomial lattice valuation pricing model with the assumptions as follows: The risk-free interest rate for periods within the contractual life of the warrant is based on the U.S. Treasury yield curve. The expected life of the warrants is based upon the contractual life of the warrants. Volatility is estimated based on an average of the historical volatilities of the common stock of four entities with characteristics similar to those of the Company. Prior to our IPO, the measurement date fair value of the underlying common shares was based upon an external valuation of our shares. (See Notes 8 and 9). Subsequent to the IPO and Secondary Offering, we use the closing price of our shares on the OTC Bulletin Board and the NASDAQ Capital Market, respectively.

We compute the fair value of the warrant liability at each reporting period and the change in the fair value is recorded as non-cash expense or non-cash income. The key component in the value of the warrant liability is our stock price, which is subject to significant fluctuation and is not under our control. The resulting effect on our net income (loss) is therefore subject to significant fluctuation and will continue to be so until the warrants are exercised, amended or expire. Assuming all other fair value inputs remain constant, we will record non-cash expense when the stock price increases and non-cash income when the stock price decreases.

Income taxes

Income taxes: Income taxes are provided for the tax effects of transactions reported in the consolidated financial statements and consist of taxes currently due plus deferred income taxes. Deferred income taxes are recognized for temporary differences between the financial statement and tax bases of assets and liabilities that will result in taxable or deductible amounts in the future. Deferred income taxes are also recognized for net operating loss carryforwards that are available to offset future taxable income and research and development credits. On January 22, 2013, we sold certain state net operating loss carryforwards. The proceeds of $663,900 are included in our income tax benefit for the nine months ended September 30, 2013.

Registration payment arrangements

Registration payment arrangements: We account for our obligations under registration payment arrangements in accordance with ASC 825-20, Registration Payment Arrangements. ASC 825-20 requires us to record a liability if we determine a registration payment is probable and if it can reasonably be estimated. As of September 30, 2013 and December 31, 2012, we have an accrued liability of $300,000 and $541,000, respectively, related to registration rights obligations associated with the issuance of Series B preferred stock and certain notes payable.

Stock-based compensation

Stock-based compensation: Stock-based compensation is accounted for in accordance with the provisions of ASC 718, Compensation-Stock Compensation, which requires the measurement and recognition of compensation expense for all stock-based awards made to employees and directors based on estimated fair values on the grant date. We estimate the fair value of stock-based awards on the date of grant using the Black-Scholes option pricing model. The value of the portion of the award that is ultimately expected to vest is recognized as expense over the requisite service periods using the straight-line method. See additional information in Note 7.

All issuances of stock options or other issuances of equity instruments to employees as the consideration for services received by us are accounted for based on the fair value of the equity instrument issued.

We account for stock-based compensation awards to non-employees in accordance with ASC 505-50, Equity Based Payments to Non-Employees. Under ASC 505-50, we determine the fair value of the warrants or stock-based compensation awards granted as either the fair value of the consideration received or the fair value of the equity instruments issued, whichever is more reliably measurable. Stock-based compensation awards issued to non-employees are recorded in expense and additional paid-in capital in stockholders’ deficit over the applicable service periods based on the fair value of the awards or consideration received at the vesting date.

Subsequent events

Subsequent events: We have evaluated potential subsequent events through November 13, 2013, which is the date the financial statements were issued.

Earnings (loss) per share

Earnings (loss) per share: Basic earnings (loss) per share is computed by dividing net income (loss) available to common stockholders by the weighted average number of common shares assumed to be outstanding during the period of computation. Diluted earnings per share is computed similar to basic earnings per share except that the numerator is adjusted for the change in fair value of the warrant liability (only if dilutive) and the denominator is increased to include the number of dilutive potential common shares outstanding during the period using the treasury stock method.

Basic net income (loss) and diluted net loss per share data were computed as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Numerator:
Net income (loss) for basic earnings per share	$	(3,066,376	)	$	311,588		$	(9,848,164	)	$	(2,621,390	)
Less gain in fair value of warrant liability		—			3,334,000			4,096,000			6,370,000
Net (loss) for diluted earnings per share	$	(3,066,376	)	$	(3,022,412	)	$	(13,944,164	)	$	(8,991,390	)
Denominator:
Weighted-average basic common shares outstanding		5,055,591			1,346,124			3,463,730			1,340,530
Assumed conversion of dilutive securities:
Common stock purchase warrants		—			9,554			4,897			9,554
Potentially dilutive common shares		—			9,554			4,897			9,554
Denominator for diluted earnings per share—adjusted weighted-average shares		5,055,591			1,355,678			3,468,627			1,350,084
Basic net income (loss) per share	$	(0.61	)	$	0.23		$	(2.84	)	$	(1.96	)
Diluted net loss per share	$	(0.61	)	$	(2.23	)	$	(4.02	)	$	(6.66	)

The following table summarizes potentially dilutive adjustments to the weighted average number of common shares which were excluded from the calculation:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Common stock purchase warrants		1,843,582		955,458		1,843,582		955,458
Stock options		506,294		553,580		506,294		553,580
Common shares issuable upon conversion of Series A Preferred Stock		—		352,614		—		352,614
Common shares issuable upon conversion of Series B Preferred Stock		—		364,320		—		364,320
		2,349,876		2,225,972		2,349,876		2,225,972

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Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 01, 2013
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Trading Symbol	CGIX
Entity Registrant Name	CANCER GENETICS, INC
Entity Central Index Key	0001349929
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		9,265,384

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Organization, Description of Business, Reverse Stock Splits and Initial Public Offering (Tables)

9 Months Ended

Sep. 30, 2013

Accounting Policies [Abstract]

Schedule of Net Proceeds from Public Offering

Net proceeds of $42.2 million were available to us from the public offering and were determined as follows:

Gross proceeds (including over-allotment)	$	46,013,800
Underwriting discounts, expenses and commissions		(3,446,792	)
Estimated other offering costs		(315,850	)
Pro forma net proceeds	$	42,251,158

Schedule of Balance Sheet Data and Pro Forma Balance Sheet Data

The following table summarizes certain actual balance sheet data and pro forma balance sheet data to reflect the activities related to our recent public offering noted above, as of September 30, 2013:

	September 30, 2013			Pro forma September 30, 2013
Cash and cash equivalents	$	9,878,176		$	52,129,334
Loan guarantee and financing fees		621,000			621,000
Accounts payable and accrued expenses		1,807,081			1,807,081
Notes payable, current portion		43,622			43,622
Line of credit		6,000,000			6,000,000
Warrant liability		1,178,000			1,178,000
Common stock		597			925
Additional paid-in capital		63,681,317			105,932,147
Accumulated deficit	$	(58,800,191	)	$	(58,800,191	)