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, 2017

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: 001-34753

GenMark Diagnostics, Inc.

(Exact name of registrant as specified in its charter)

Delaware	27-2053069
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
5964 La Place Court Carlsbad, California	92008-8829
(Address of principal executive offices)	(Zip code)

Registrant’s telephone number, including area code: 760-448-4300

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, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act (Check one):

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

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

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

The number of outstanding shares of the registrant’s common stock on October 27, 2017, was 54,795,061.

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GENMARK DIAGNOSTICS, INC.

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements	4
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	25
Item 4.	Controls and Procedures	25
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	26
Item 1A.	Risk Factors	26
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	38
Item 3.	Defaults Upon Senior Securities	38
Item 4.	Mine Safety Disclosures	38
Item 5.	Other Information	38
Item 6.	Exhibits	39

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PART I. FINANCIAL INFORMATION

ITEM 1.     FINANCIAL STATEMENTS

GENMARK DIAGNOSTICS, INC.

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except par value)

	September 30, 2017		December 31, 2016
Current assets
Cash and cash equivalents	$	27,161	$	15,959
Marketable securities	59,756		25,607
Accounts receivable, net of allowances of $2,792 and $2,740, respectively	7,800		9,048
Inventories	7,109		6,633
Prepaid expenses and other current assets	1,971		1,202
Total current assets	103,797		58,449
Property and equipment, net	21,586		18,268
Intangible assets, net	2,772		2,670
Restricted cash	758		758
Other long-term assets	194		179
Total assets	$	129,107	$	80,324
Current liabilities
Accounts payable	$	7,242	$	8,703
Accrued compensation	5,227		5,650
Loan payable	19,548		7,935
Other current liabilities	2,923		4,133
Total current liabilities	34,940		26,421
Long-term liabilities
Deferred rent	3,225		3,652
Long-term debt	9,918		11,880
Other non-current liabilities	387		220
Total liabilities	48,470		42,173
Stockholders’ equity
Preferred stock, $0.0001 par value; 5,000 authorized, none issued	—		—
Common stock, $0.0001 par value; 100,000 authorized; 54,792 and 46,554 shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively	5		4
Additional paid-in capital	483,242		393,322
Accumulated deficit	(402,584)		(355,270)
Accumulated other comprehensive income	(26)		95
Total stockholders’ equity	80,637		38,151
Total liabilities and stockholders’ equity	$	129,107	$	80,324

See accompanying notes to unaudited condensed consolidated financial statements.

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GENMARK DIAGNOSTICS, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(In thousands, except per share data)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2017			2016			2017			2016
Revenue
Product revenue	$	11,552		$	10,727		$	36,313		$	34,111
License and other revenue	51			86			184			278
Total revenue	11,603			10,813			36,497			34,389
Cost of revenue	7,400			4,362			21,227			13,457
Gross profit	4,203			6,451			15,270			20,932
Operating expenses
Sales and marketing	5,121			3,223			14,974			10,232
General and administrative	3,565			3,227			11,553			10,522
Research and development	10,248			11,628			34,297			37,100
Total operating expenses	18,934			18,078			60,824			57,854
Loss from operations	(14,731		)	(11,627		)	(45,554		)	(36,922		)
Other income (expense)
Interest income	247			43			353			98
Interest expense	(1,009		)	(476		)	(2,270		)	(1,061		)
Other income	76			16			227			7
Total other income (expense)	(686		)	(417		)	(1,690		)	(956		)
Loss before provision for income taxes	(15,417		)	(12,044		)	(47,244		)	(37,878		)
Income tax expense (benefit)	(9		)	14			68			45
Net loss	$	(15,408	)	$	(12,058	)	$	(47,312	)	$	(37,923	)
Net loss per share, basic and diluted	$	(0.28	)	$	(0.27	)	$	(0.95	)	$	(0.88	)
Weighted average number of shares outstanding, basic and diluted	54,726			44,377			49,908			43,308
Other comprehensive loss
Net loss	$	(15,408	)	$	(12,058	)	$	(47,312	)	$	(37,923	)
Foreign currency translation adjustments	51			(4		)	145			9
Net unrealized gains (losses) on marketable securities, net of tax	(9		)	20			(24		)	(2		)
Comprehensive loss	$	(15,366	)	$	(12,042	)	$	(47,191	)	$	(37,916	)

See accompanying notes to unaudited condensed consolidated financial statements.

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GENMARK DIAGNOSTICS, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

	Nine Months Ended September 30,
	2017			2016
Operating activities
Net loss	$	(47,312	)	$	(37,923	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	3,811			2,739
Amortization of premiums on investments	4			61
Amortization of deferred debt issuance costs	891			277
Gain on sale of investment in preferred stock	—			(9		)
Stock-based compensation	8,386			6,788
Provision for bad debt	51			13
Non-cash inventory adjustments	911			120
Other non-cash adjustments	(190		)	20
Changes in operating assets and liabilities:
Accounts receivable	1,272			1,719
Inventories	(4,813		)	(1,048		)
Prepaid expenses and other assets	(767		)	(596		)
Other long-term assets	(16		)	—
Accounts payable	(1,468		)	916
Accrued compensation	(452		)	1,731
Other liabilities	(913		)	33
Net cash used in operating activities	(40,605		)	(25,159		)
Investing activities
Payments for intellectual property licenses	(500		)	(800		)
Purchases of property and equipment	(3,816		)	(5,105		)
Purchases of marketable securities	(56,525		)	(32,895		)
Proceeds from sales of marketable securities	13,896			9
Maturities of marketable securities	8,500			8,050
Net cash used in investing activities	(38,445		)	(30,741		)
Financing activities
Proceeds from issuance of common stock	86,835			30,448
Costs incurred in conjunction with stock issuance	(5,469		)	(1,091		)
Principal repayment of borrowings	(6,123		)	(28		)
Proceeds from borrowings	15,000			10,000
Costs associated with debt issuance	(187		)	(30		)
Proceeds from stock option exercises	213			507
Net cash provided by financing activities	90,269			39,806
Effect of exchange rate changes on cash	(17		)	2
Net increase (decrease) in cash and cash equivalents	11,202			(16,092		)
Cash and cash equivalents at beginning of period	15,959			35,385
Cash and cash equivalents at end of period	$	27,161		$	19,293
Non-cash investing and financing activities
Transfer of instruments from (to) property and equipment to (from) inventory	$	(3,438	)	$	234
Property and equipment costs included in accounts payable	$	330		$	1,040
Intellectual property acquisitions included in other current liabilities	$	—		$	700
Supplemental cash flow disclosures
Cash paid for income taxes, net	$	58		$	38
Cash received for interest	$	367		$	58
Cash paid for interest	$	1,143		$	761

See accompanying notes to unaudited condensed consolidated financial statements.

6

GENMARK DIAGNOSTICS, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1. Organization and Basis of Presentation

GenMark Diagnostics, Inc., the Company or GenMark, was formed by Osmetech plc as a Delaware corporation in February 2010, and had no operations prior to its initial public offering, which was completed in June 2010. The Company is a leading provider of multiplex molecular solutions designed to enhance patient care, improve key quality metrics, and reduce the total cost-of-care.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles, or U.S. GAAP, and applicable regulations of the U.S. Securities and Exchange Commission, or the SEC, and should be read in conjunction with the audited financial statements included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2016 filed with the SEC on February 28, 2017. These unaudited condensed consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods presented. These adjustments are of a normal, recurring nature. Interim period operating results may not be indicative of the operating results for the full year or any future period.

The Company has experienced net losses and negative cash flows from operating activities since its inception and had an accumulated deficit of $402,584,000 as of September 30, 2017. The Company's ability to transition to profitable operations is dependent upon achieving a level of revenues adequate to support its cost structure through expanding its product offerings and consequently increasing its product revenues. As of September 30, 2017, the Company had available cash, cash equivalents, and marketable securities of $86,917,000 and working capital of $68,857,000 available to fund future operations. The Company has prepared cash flow forecasts which indicate, based on the Company's current cash resources available and working capital, that the Company will have sufficient resources to fund its operations for at least one year after the date the financial statements are issued.

Principles of Consolidation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates

The preparation of these unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and the notes thereto. The Company’s significant estimates included in the preparation of the financial statements are related to accounts receivable, inventories, property and equipment, intangible assets, employee-related compensation accruals, warranty liabilities, tax valuation accounts and stock-based compensation. Actual results could differ from those estimates.

Segment Information

The Company currently operates in one reportable business segment, which encompasses the development, manufacturing, sales and support of instruments and molecular tests based on its proprietary eSensor® detection technology. Substantially all of the Company’s operations and assets are in the United States of America.

Recent Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board, or FASB, or other standard setting bodies that the Company adopts as of the specified effective date.

In November 2016, the FASB issued Accounting Standards Update, or ASU, 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires amounts generally described as restricted cash and restricted cash equivalents to be included in the cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU 2016-08 is effective for fiscal years beginning after December 15, 2017 (including interim periods within those periods) using a retrospective transition method for each period presented. Early adoption is permitted. The Company will adopt ASU 2016-18 in the first quarter of 2018 and anticipates the impact of adoption will result in a beginning and ending cash balance increase of approximately $758,000. The Company does not anticipate a material impact in the cash flow resulting from fluctuations in the restricted cash balance.

7

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting. This guidance simplifies how several aspects of share-based payments are accounted for and presented in the financial statements and is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. The Company's adoption of this guidance in the first quarter of 2017 resulted in excess tax benefits for which a benefit could not be previously recognized of approximately $1,979,000. Upon adoption, the balance of the unrecognized excess tax benefits was reversed with the impact recorded to retained earnings, including a corresponding change to the valuation allowance. Due to the full valuation allowance on the Company's U.S. deferred tax assets, there was no impact to the unaudited condensed consolidated financial statements as a result of adoption. The Company continues to record stock-based compensation expense net of estimated forfeitures.

In February 2016, the FASB issued ASU 2016-02, Leases. This ASU outlines a comprehensive lease accounting model and supersedes the current lease guidance. The new guidance requires lessees to recognize lease liabilities and corresponding right-of-use assets for all leases with lease terms of greater than 12 months. It also changes the definition of a lease and expands the disclosure requirements of lease arrangements. The new guidance must be adopted using the modified retrospective approach and will be effective for the Company starting in the first quarter of 2019, with early adoption permitted. The Company believes that adoption will modify its analysis and disclosures of lease agreements as operating agreements are a significant portion of the Company's total lease commitments. The Company is in the process of determining the effects adoption of this guidance will have on its consolidated financial statements, as well as whether to adopt this guidance early.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, an updated standard on revenue recognition. ASU 2014-09 provides enhancements to the quality and consistency of how revenue is reported by companies while also improving comparability in the financial statements of companies reporting using International Financial Reporting Standards or U.S. GAAP. The main purpose of the new standard is for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which a company expects to be entitled in exchange for those goods or services. The new standard also will result in enhanced disclosures of revenue, provide guidance for transactions that were not previously addressed comprehensively, and improves guidance for multiple-element arrangements. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, which deferred the effective date of the new revenue standard from periods beginning after December 15, 2016 to December l5, 2017, with early adoption permitted but not earlier than the original effective date. Accordingly, the updated standard is effective for the Company in the first quarter of 2018. The Company performed a preliminary assessment of the impact of ASU 2014-09 on its consolidated financial statements, and considered all items outlined in the standard. In assessing the impact, the Company has outlined all revenue generating activities, mapped those activities to deliverables and traced those deliverables to the standard. The Company is now assessing what impact the change in standard will have on those deliverables. The Company will continue to evaluate the future impact and method of adoption of ASU 2014-09 and related amendments on its consolidated financial statements and related disclosures during the remainder of 2017. The Company believes the adoption of this guidance will modify the manner in which the Company analyzes its revenue generating contracts. The Company will adopt the new standard beginning January 2018.

Cash, Cash Equivalents and Marketable Securities

Cash and cash equivalents consist of cash on deposit with banks, money market instruments and certificates of deposit with original maturities of three months or less at the date of purchase. Marketable securities consist of certificates of deposits that mature in greater than three months. Marketable securities are accounted for as "available-for-sale" with the carrying amounts reported in the balance sheets stated at cost, which approximates their fair market value, with unrealized gains and losses, if any, reported as a separate component of stockholders' equity and included in comprehensive loss.

Restricted Cash

Restricted cash represents amounts designated for uses other than current operations and included $758,000 as of September 30, 2017, held as security for the Company’s letter of credit with Banc of California.

Receivables

Accounts receivable consist of amounts due to the Company for sales to customers and are recorded net of an allowance for doubtful accounts. The allowance for doubtful accounts is determined based on an assessment of the collectability of specific customer accounts, the aging of accounts receivable, and a reserve for unknown items based upon the Company’s historical experience.

Product Warranties

The Company generally offers a one-year warranty for its instruments sold to customers and typically up to a 60 day warranty for consumables. Factors that affect the Company’s warranty reserves include the number of units sold, historical and anticipated rates of warranty repairs, and the cost per repair. The Company periodically assesses the adequacy of its warranty reserve and adjusts the amount as appropriate.

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Intangible Assets

Intangible assets comprise licenses or sublicenses to technology covered by patents owned by third parties, and are amortized on a straight-line basis over the expected useful lives of these assets, which is generally 10 years. Amortization of licenses typically begins upon the Company obtaining access to the licensed technology and is recorded in cost of revenues for licenses supporting commercialized products. The amortization of licenses to technology supporting products in development is recorded in research and development expenses.

Impairment of Long-Lived Assets

The Company assesses the recoverability of long-lived assets, including intangible assets, by periodically evaluating the carrying value whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If impairment is indicated, the Company writes down the carrying value of the asset to its estimated fair value. This fair value is primarily determined based on estimated discounted future cash flows.

Inventories

Inventories are stated at the lower of cost (first-in, first-out) or net realizable value and include direct labor, materials, and manufacturing overhead. The Company periodically reviews inventory for evidence of slow-moving or obsolete parts, and writes inventory down to net realizable value, as needed. This write-down is based on management’s review of inventories on hand, compared to estimated future usage and sales, shelf-life assumptions, and assumptions about the likelihood of obsolescence. If actual market conditions are less favorable than those projected by the Company, additional inventory write-downs may be required. Inventory impairment charges establish a new cost basis for inventory and charges are not reversed subsequently to income, even if circumstances later suggest that increased carrying amounts are recoverable.

Property and Equipment, net

Property, equipment and leasehold improvements are recorded at cost and depreciated using the straight-line method over the estimated useful lives of the assets, which are identified below. Repair and maintenance costs are expensed as incurred.

Machinery and laboratory equipment	3 - 5 years
Instruments	4 - 5 years
Office equipment	3 - 7 years
Leasehold improvements	over the shorter of the remaining life of the lease or the useful economic life of the asset

Income Taxes

Current income tax expense is the amount of income taxes expected to be payable for the current year. A deferred income tax liability or asset is established for the expected future tax consequences resulting from the differences in financial reporting and tax bases of assets and liabilities. A valuation allowance is provided if it is more likely than not that some or all of the deferred tax assets will not be realized. A full valuation allowance has been recorded against the Company’s net deferred tax assets due to the uncertainty surrounding the Company’s ability to utilize these assets in the future. The Company provides for uncertain tax positions when such tax positions do not meet the recognition thresholds or measurement standards prescribed by the authoritative guidance on income taxes. Amounts for uncertain tax positions are adjusted in periods when new information becomes available or when positions are effectively settled. The Company recognizes accrued interest related to uncertain tax positions as a component of income tax expense.

A tax position that is more likely than not to be realized is measured at the largest amount of tax benefit that is greater than 50% likely of being realized upon settlement with the taxing authority that has full knowledge of all relevant information. Measurement of a tax position that meets the more-likely-than-not threshold considers the amounts and probabilities of the outcomes that could be realized upon settlement using the facts, circumstances and information available at the reporting date.

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2. Stock-Based Compensation

The Company recognizes stock-based compensation expense related to stock options, restricted stock awards, restricted stock units, and market-based stock units granted to employees and directors in exchange for services under the Company's 2010 Equity Incentive Plan, or the 2010 Plan, and employee stock purchases under the Company's 2013 Employee Stock Purchase Plan, or the ESPP. Employee participation in the 2010 Plan is at the discretion of the Compensation Committee of the Board of Directors of the Company. Each equity award grant under the 2010 Plan reduces the number of shares available for grant thereunder. Stock-based compensation expense is based on the fair value of the applicable award utilizing various assumptions regarding the underlying attributes of the award. Stock-based compensation expense is recorded in cost of sales, sales and marketing, research and development, and/or general and administrative expenses based on the employee's respective function. During the nine months ended September 30, 2017 and 2016, aggregate stock-based compensation expense was $8,386,000 and $6,788,000, respectively.

The estimated fair value, net of forfeitures expected to occur during the vesting period, is amortized as compensation expense that approximates straight-line expense to reflect vesting as it occurs. The stock option expense is derived from the Black-Scholes Option Pricing Model that uses several judgment-based variables to calculate the expense. The market-based stock unit expense is derived from the Monte Carlo Simulation Valuation. The inputs utilized in the valuation of the stock-based awards include the following factors:

• Expected Term. Expected term represents the period that the stock-based awards are expected to be outstanding and is determined by using the simplified method.

• Expected Volatility. Expected volatility represents the estimated volatility in the Company’s stock price over the expected term of the option or market-based award and is determined by review of the Company’s and similar companies’ historical experience.

• Expected Dividend. The valuation methods require a single expected dividend yield as an input. The Company assumed no dividends as it has never paid dividends and has no current plans to do so.

• Risk-Free Interest Rate. The risk-free interest rate used in the Black-Scholes Option Pricing Model is based on published U.S. Treasury rates in effect at the time of grant for periods corresponding with the expected term of the option or market-based award.

All stock options granted under the 2010 Plan are exercisable at a per share price equal to the closing quoted market price of a share of the Company’s common stock on the NASDAQ Global Market on the grant date and generally vest over a period of between one and four years. Stock options are generally exercisable for a period of up to 10 years after grant and are typically forfeited if employment is terminated before the options vest.

The following table summarizes stock option activity during the nine months ended September 30, 2017:

	Number of Shares		Weighted Average Exercise Price
Outstanding at December 31, 2016	2,569,550		$	9.53
Granted	—		$	—
Exercised	(28,966	)	$	7.36
Cancelled	(14,427	)	$	10.04
Outstanding at September 30, 2017	2,526,157		$	9.56
Vested and expected to vest at September 30, 2017	2,500,450		$	9.52
Exercisable at September 30, 2017	2,167,970		$	9.18

Options that were exercisable as of September 30, 2017 had a remaining weighted average contractual term of 5.11 years, and an aggregate intrinsic value of $6,478,000. As of September 30, 2017, there were 2,526,157 stock options outstanding, which had a remaining weighted average contractual term of 5.42 years and an aggregate intrinsic value of $6,783,000. No stock options were granted during the nine months ended September 30, 2017.

Restricted stock awards or units may be granted in connection with the hiring or retention of personnel and are subject to certain conditions. In March 2013, the Company transitioned to granting restricted stock units under the 2010 Plan in lieu of granting restricted stock awards. The compensation expense related to the restricted stock awards or units is calculated as the fair market value of the Company's stock on the grant date and is adjusted for estimated forfeitures. The Company’s restricted stock award and restricted stock unit activity for the nine months ended September 30, 2017 was as follows:

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	Restricted Stock Awards				Restricted Stock Units
	Number of Shares		Weighted Average Grant Date Fair Value		Number of Shares		Weighted Average Grant Date Fair Value
Unvested at December 31, 2016	156		$	11.19	1,766,123		$	7.18
Granted	—		$	—	1,164,250		$	10.90
Vested	(156	)	$	11.19	(614,457	)	$	6.80
Cancelled	—		$	—	(165,501	)	$	8.99
Unvested at September 30, 2017	—		$	—	2,150,415		$	9.16

As of September 30, 2017, all compensation expense related to restricted stock awards has been recognized. The total fair value of restricted stock awards that vested during the nine months ended September 30, 2017 and 2016 was $2,000 and $152,000, respectively.

As of September 30, 2017, there was $13,142,000 of unrecognized compensation cost related to unvested restricted stock units, which is expected to be recognized over a weighted average period of 2.76 years. The total fair value of restricted stock units that vested during the nine months ended September 30, 2017 and 2016 was $4,181,000 and $4,526,000, respectively.

The Company issued market-based stock units in February 2017 and February 2016, which may in each case result in the recipient receiving shares of stock equal to 200% of the target number of units granted. The vesting and issuance of Company stock pursuant to these awards depends on the Company's stock performance as compared to the NASDAQ Composite Index over a three-year period following the grant, subject to continued service with the Company. As of September 30, 2017, there was $1,502,000 of unrecognized stock-based compensation expense related to these awards, which is expected to be recognized over a weighted average period of 1.59 years. The Company’s market-based stock unit activity for the nine months ended September 30, 2017 was as follows:

	Market-Based Stock Units
	Number of Shares		Weighted Average Grant Date Fair Value
Unvested at December 31, 2016	150,871		$	11.10
Units granted	166,434		$	13.82
Vested	—		$	—
Cancelled	(12,762	)	$	11.90
Unvested at September 30, 2017	304,543		$	12.55

    The fair value of these market-based stock units was estimated on the grant date using the Monte Carlo Simulation Valuation Model, which estimates the potential outcome of achieving the market condition based on simulated future stock prices, with the following assumptions for the nine months ended September 30, 2017:

	Nine Months Ended
	September 30,
	2017			2016
Expected volatility	54		%	49		%
Risk-free interest rate	1.50		%	0.90		%
Expected dividend	—		%	—		%
Weighted average fair value	$	13.82		$	4.94

The Company issued 43,200 performance-based restricted stock units in March 2014 with a grant date fair value of $12.30 per share. The vesting and issuance of Company stock pursuant to these awards depends on obtaining regulatory clearance of various products within a defined time. Stock-based compensation expense for performance-based awards is recognized when it is probable that the applicable performance criteria will be satisfied. The probability of achieving the relevant performance criteria is evaluated on a quarterly basis. As of September 30, 2017, there was $133,000 of unrecognized stock-based compensation expense related to these awards.

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Employee Stock Purchase Plan

The Company's stockholders approved the ESPP in May 2013. A total of 650,000 shares of the Company’s common stock were originally reserved for issuance under the ESPP, which permits eligible employees to purchase common stock at a discount through payroll deductions.

The price at which stock is purchased under the ESPP is equal to 85% of the fair market value of the Company's common stock on the first or the last day of the offering period, whichever is lower. Generally, each offering under the ESPP will be for a period of six months as determined by the Company's Board of Directors; provided that no offering period may exceed 27 months. Employees may invest up to 10% of their qualifying gross compensation through payroll deductions. In no event may an employee purchase more than 1,500 shares of common stock during any six-month offering period. As of September 30, 2017, there were 207,183 shares of common stock available for issuance under the ESPP. The ESPP is a compensatory plan as defined by the authoritative guidance for stock compensation; therefore, stock-based compensation expense related to the ESPP has been recorded during the nine months ended September 30, 2017.

3. Net Loss per Common Share

Basic net loss per share is calculated by dividing loss available to stockholders of the Company's common stock (the numerator) by the weighted average number of shares of the Company's common stock outstanding during the period (the denominator). Shares issued during the period and shares reacquired during the period are weighted for the portion of the period that they were outstanding. Diluted loss per share is calculated in a similar way to basic loss per share except that the denominator is increased to include the number of additional shares that would have been outstanding if the dilutive potential shares had been issued, unless the effect would be anti-dilutive.

The computations of diluted net loss per share for the three and nine month periods ended September 30, 2017 and 2016 did not include the effects of the following stock options and other equity awards which were outstanding as of the end of each period because the inclusion of these securities would have been anti-dilutive (in thousands):

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Options outstanding to purchase common stock	2,526	2,611	2,526	2,611
Other unvested equity awards	2,466	2,057	2,466	2,057
Total	4,992	4,668	4,992	4,668

4. Inventories

Inventory on hand as of September 30, 2017 and December 31, 2016 comprised the following (in thousands):

	September 30, 2017		December 31, 2016
Raw materials	$	2,795	$	2,171
Work-in-process	2,709		1,488
Finished goods	1,605		2,974
Total inventories	$	7,109	$	6,633

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5. Property and Equipment, net

Property and equipment as of September 30, 2017 and December 31, 2016 comprised the following (in thousands):

	September 30, 2017			December 31, 2016
Property and equipment — at cost:
Machinery and laboratory equipment	$	12,607		$	10,145
Instruments	13,203			9,869
Office equipment	1,970			1,714
Leasehold improvements	10,497			10,100
Total property and equipment — at cost	38,277			31,828
Less: accumulated depreciation	(16,691		)	(13,560		)
Property and equipment, net	$	21,586		$	18,268

Depreciation expense was $1,206,000 and $854,000 for the three months ended September 30, 2017 and 2016, respectively, and was $3,413,000 and $2,458,000 for the nine months ended September 30, 2017 and 2016, respectively.

6. Intangible Assets, net

Intangible assets as of September 30, 2017 and December 31, 2016 comprised the following (in thousands):

	September 30, 2017							December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Licensed intellectual property	$	4,750	$	(1,978	)	$	2,772	$	4,250	$	(1,580	)	$	2,670

In July 2012, the Company entered into a development collaboration and license agreement with Advanced Liquid Logic, Inc., or ALL, which was acquired by Illumina, Inc. in July 2013. Under the terms of the agreement, the Company established a collaborative program to develop in-vitro diagnostic products incorporating ALL’s proprietary electro-wetting technology in conjunction with the Company’s electrochemical detection technology. During the nine months ended September 30, 2017, the Company satisfied certain commercial milestones under this agreement requiring the payment of $500,000, which was recorded as licensed intellectual property.

Intellectual property licenses had a weighted average remaining amortization period of 4.68 years as of September 30, 2017. Amortization expense for these licenses was $151,000 and $94,000 for the three months ended September 30, 2017 and 2016, respectively, and was $398,000 and $281,000 for the nine months ended September 30, 2017 and 2016, respectively. Estimated future amortization expense for these licenses is as follows (in thousands):

Fiscal Years Ending	Future Amortization Expense
Remaining in 2017	$	148
2018	593
2019	593
2020	593
2021	593
Thereafter	252
Total	$	2,772

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7. Loan Payable

As of September 30, 2017 and December 31, 2016, long-term debt comprised the following (in thousands):

	September 30, 2017			December 31, 2016
Term Loans
Term Loan A - 6.9% principal	$	10,000		$	10,000
Term Loan B - 6.9% principal	10,000			10,000
Term Loan C - 7.4% principal	15,000			—
Final fee obligation	1,537			400
Repayment of principal	(6,060		)	—
Unamortized issuance costs	(1,011		)	(585		)
Total debt, net	29,466			19,815
Current portion of long-term debt	(19,548		)	(7,935		)
Long-term debt	$	9,918		$	11,880

Term Loans

In January 2015, the Company entered into a Loan and Security Agreement, or the LSA, with Solar Capital Partners (as successor-in-interest to General Electric Capital Corporation), and certain other financial institutions party thereto, as lenders, pursuant to which the Company obtained up to $35,000,000 in a series of term loans and a revolving loan in the maximum amount of $5,000,000. As of June 2017, the Company had borrowed all $35,000,000 under the term loans as provided in the LSA.

The term loans accrue interest at a rate equal to, (a) the greater of 1.00% or the 3-year treasury rate in effect at the time of funding, plus (b) an applicable margin between 4.95% and 5.90% per annum. The Company was only required to make interest payments on amounts borrowed pursuant to the Term Loans from the applicable funding date until June 15, 2017, or the Interest Only Period. Following the Interest Only Period, monthly installments of principal and interest under the Term Loans will be due until the original principal amount and applicable interest is fully repaid by January 12, 2019, or the Maturity Date.

Under the LSA, the Company is required to comply with certain affirmative and negative covenants, including, without limitation, delivering reports and notices relating to the Company’s financial condition and certain regulatory events and intellectual property matters, as well as limiting the creation of liens, the incurrence of indebtedness, and the making of certain investments, dividends, payments and acquisitions, other than as specifically permitted by the LSA. As of September 30, 2017, the Company was in compliance with all covenants under the LSA.

Revolving Loan

Pursuant to the LSA, the Company may borrow up to $5,000,000 under a revolving loan facility. Borrowings under the revolving loan would accrue interest at a rate equal to (a) the greater of 1.25% per annum or a base rate as determined by a three-month LIBOR-based formula, plus (b) an applicable margin between 2.95% and 3.95% based on certain criteria as set forth in the LSA. All principal and interest outstanding under the revolving loan is due and payable on the Maturity Date. The Company is required to pay a commitment fee equal to 0.75% per annum of the amounts made available but unborrowed under the revolving loan. As of September 30, 2017, the Company had not borrowed any of the $5,000,000 available under the revolving loan.

Debt Issuance Costs

As of September 30, 2017 and December 31, 2016, the Company had $1,011,000 and $585,000, respectively, of unamortized debt issuance discount, which is offset against borrowings in long-term and short-term debt.

Amortization of debt issuance costs was $398,000 and $108,000, for the three months ended September 30, 2017 and 2016, respectively, and was $891,000 and $277,000 for the nine months ended September 30, 2017 and 2016, respectively. Amortization of debt issuance costs is included as interest expense in the Company's unaudited condensed consolidated statements of comprehensive loss for the periods presented.

Letter of Credit

In September 2012, the Company provided a $758,000 letter of credit issued by Banc of California to the landlord of its executive office facility in Carlsbad, California. This letter of credit was secured with $758,000 of restricted cash as of September 30, 2017.

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8. Leases

The Company has operating and capital lease agreements for its office, manufacturing, warehousing and laboratory space and for office equipment. Rent and operating expenses charged under these arrangements was $399,000 and $476,000 for the three months ended September 30, 2017 and 2016, respectively, and was $1,211,000 and $1,460,000 for the nine months ended September 30, 2017 and 2016, respectively. Pursuant to the Company's lease agreements, a portion of the monthly rent has been deferred. The balance of deferred rent as of September 30, 2017 and December 31, 2016 was $3,781,000 and $4,097,000, respectively.

As of September 30, 2017, the future minimum lease payments required over the next five years under the Company's lease arrangements are as follows (in thousands):

Fiscal Years Ending	Future Minimum Lease Payments
Remaining in 2017	$	447
2018	1,868
2019	1,989
2020	1,997
2021	1,372
Thereafter	1,366
Total	$	9,039

9. Fair Value of Financial Instruments

The carrying amounts of financial instruments, such as cash equivalents, restricted cash, accounts receivable, and accounts payable approximate the related fair values due to the short-term maturities of these instruments.

The Company uses a fair value hierarchy with three levels of inputs, of which the first two are considered observable and the last unobservable, to measure fair value:

• Level 1 — Quoted prices in active markets for identical assets or liabilities.

• Level 2 — Inputs, other than Level 1, that are observable, either directly or indirectly, 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 for substantially the full term of the assets or liabilities.

• Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

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The following table presents the financial instruments measured at fair value on a recurring basis and the valuation approach applied to each class of financial instruments as of September 30, 2017 and December 31, 2016 (in thousands):

	September 30, 2017
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Cash equivalents
Money market funds	$	9,129	$	—	$	—	$	9,129
Corporate notes and bonds	—		4,000		—		4,000
Marketable securities
Corporate notes and bonds	—		41,787		—		41,787
U.S. government and agency securities	—		13,984		—		13,984
Commercial paper	—		3,985		—		3,985
Total	$	9,129	$	63,756	$	—	$	72,885
	December 31, 2016
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Cash equivalents
Money market funds	$	556	$	—	$	—	$	556
Marketable securities
Corporate notes and bonds	—		18,821		—		18,821
U.S. government and agency securities	—		3,503		—		3,503
Commercial paper	—		3,283		—		3,283
Total	$	556	$	25,607	$	—	$	26,163

Level 2 marketable securities are priced using quoted market prices for similar instruments or nonbinding market prices that are corroborated by observable market data. The Company uses inputs such as actual trade data, benchmark yields, broker/dealer quotes, and other similar data, which are obtained from quoted market prices, independent pricing vendors, or other sources, to determine the ultimate fair value of these assets and liabilities. The Company uses such pricing data as the primary input to make its assessments and determinations as to the ultimate valuation of its investment portfolio and has not made, during the periods presented, any material adjustments to such inputs.

10. Marketable Securities

The following table summarizes the Company’s marketable securities as of September 30, 2017 and December 31, 2016 (in thousands):

September 30, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Corporate notes and bonds	$	41,793	$	1	$	(7	)	$	41,787
U.S. government and agency securities	13,982		2		—			13,984
Commercial paper	3,985		—		—			3,985
Total	$	59,760	$	3	$	(7	)	$	59,756
December 31, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Corporate notes and bonds	$	18,846	$	—	$	(25	)	$	18,821
U.S. government and agency securities	3,506		—		(3		)	3,503
Commercial paper	3,283		—		—			3,283
Total	$	25,635	$	—	$	(28	)	$	25,607

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The following table summarizes the maturities of the Company’s marketable securities as of September 30, 2017 (in thousands):

	Amortized Cost		Estimated Fair Value
Due in one year or less	$	59,760	$	59,756
Due after one year through two years	—		—
Total	$	59,760	$	59,756

11. Income Taxes

The Company uses an estimated annual effective tax rate, which is based on expected annual income, statutory tax rates and tax planning opportunities available in the various jurisdictions in which the Company operates, to determine its quarterly provision for income taxes. Certain significant or unusual items are separately recognized in the quarter in which they occur and can be a source of variability in the effective tax rates from quarter to quarter.

As of September 30, 2017, the Company recorded a full valuation allowance against all of its net deferred tax assets due to the uncertainty surrounding the Company’s ability to utilize these assets in the future. Due to the Company's losses, it only records a tax provision or benefit related to uncertain tax positions and related interest and minimum tax payments or refunds. The Company recorded an income tax benefit of $9,000 for the three months ended September 30, 2017 and income tax expense of $14,000 for the three months ended September 30, 2016, and income tax expense of $68,000 and $45,000 for the nine months ended September 30, 2017 and 2016, respectively.

The Company is subject to taxation in the United States and in various state and foreign jurisdictions. The Company's federal and state returns since inception are subject to examination due to the carryover of net operating losses. As of September 30, 2017, the Company’s tax years from 2011 through 2012 are subject to examination by the United Kingdom tax authorities related to its legacy operations. The statute of limitations for the assessment and collection of income taxes related to other foreign tax returns varies by country. In the foreign countries where the Company has operations, these time periods generally range from three to five years after the year for which the tax return is due or the tax is assessed.

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ITEM 2.     MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward Looking Statements

The following discussion of our financial condition and results of operations should be read together with our unaudited condensed consolidated financial statements for the nine months ended September 30, 2017 and the notes thereto included in Part I, Item 1 of this Quarterly Report, as well as the audited financial statements and notes thereto and Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2016.

This Management’s Discussion and Analysis of Financial Condition and Results of Operations contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. These forward-looking statements regarding future events and our future results are based on current expectations, estimates, forecasts, and projections and the beliefs and assumptions of our management, including, without limitation, our expectations regarding our results of operations, sales and marketing expenses, general and administrative expenses, research and development expenses, and the sufficiency of our cash for future operations. Words such as “expect,” “anticipate,” “target,” “project,” “believe,” “goals,” “estimate,” “potential,” “predict,” “plan,” “may,” “will,” “might,” “could,” “intend,” variations of these terms or the negative of those terms and similar expressions are intended to identify these forward-looking statements. Readers are cautioned that these forward-looking statements are subject to risks, uncertainties, and assumptions that are difficult to predict. Therefore, actual results may differ materially and adversely from those expressed in or implied by any forward-looking statements.

Among the important factors that could cause actual results to differ materially from those indicated by our forward-looking statements are those discussed under the heading “Risk Factors” in Part II, Item 1A of this Quarterly Report. We assume no obligation to update these forward looking statements to reflect future events or circumstances.

Trademarks and Trade Names

GenMark®, eSensor®, XT-8® and ePlex® and our other logos and trademarks are the property of GenMark Diagnostics, Inc. or its subsidiaries. All other brand names or trademarks appearing in this Quarterly Report are the property of their respective holders. Our use or display of other parties’ trademarks, trade dress or products in this Quarterly Report does not imply that we have a relationship with, or the endorsement or sponsorship of, the trademark or trade dress owners. 

Overview

GenMark Diagnostics, Inc, or GenMark, was formed by Osmetech plc, or Osmetech, as a Delaware corporation in February 2010, and had no operations prior to its initial public offering, which was completed in June 2010. Immediately prior to the closing of the initial public offering, GenMark acquired all of the outstanding ordinary shares of Osmetech in a reorganization under the applicable laws of the United Kingdom. Following the reorganization, Osmetech became a wholly-owned subsidiary controlled by GenMark, and the former shareholders of Osmetech received shares of GenMark. Any historical discussion of GenMark relates to Osmetech and its consolidated subsidiaries prior to the reorganization. In September 2012, GenMark placed Osmetech into liquidation to simplify its corporate structure. The liquidation of Osmetech was competed in the fourth quarter of 2013.

We currently develop and commercialize high-value, simple to perform, clinically relevant multiplex molecular tests based on our proprietary eSensor electrochemical detection technology. We currently sell our XT-8 instrument, which received 510(k) market clearance from the U.S. Food and Drug Administration, or the FDA, in July 2008, and related diagnostic and research tests, as well as certain custom manufactured reagents, which collectively we refer to as our XT-8 system. Our XT-8 system supports a broad range of molecular tests with a compact and easy-to-use workstation and disposable test cartridges. In June 2016, we obtained CE Mark for our ePlex instrument and ePlex Respiratory Pathogen (RP) Panel; in April 2017, we obtained CE Mark for our ePlex Blood Culture Identification (BCID) Fungal Pathogen (FP) Panel; and in June 2017, we obtained CE Mark for our ePlex BCID Gram-Positive (GP) Panel and BCID Gram-Negative (GN) Panel. Additionally, in June 2017 we received 510(k) market clearance from the FDA for both our ePlex instrument and RP Panel. We intend to offer a number of additional associated diagnostic tests for use with our ePlex instrument, which we collectively refer to as our ePlex system.

Since inception, we have incurred net losses from operations each year, and we expect to continue to incur losses for the foreseeable future. Our net losses for the nine months ended September 30, 2017 and 2016 were approximately $47,312,000 and $37,923,000, respectively. As of September 30, 2017, we had an accumulated deficit of $402,584,000. Our operations to date have been funded principally through sales of capital stock, borrowings and cash from operations. We expect to incur increasing expenses over the next several years, principally to further expand our diagnostic test menu for our ePlex system, as well as to further increase our manufacturing capabilities and domestic and international commercial organization. 

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Our Products and Technology

We offer four FDA-cleared diagnostic tests which run on our XT-8 instrument: our Respiratory Viral Panel; our Cystic Fibrosis Genotyping Test; our Warfarin Sensitivity Test; and our Thrombophilia Risk Test. We have also developed a number of hepatitis C virus, or HCV, genotyping tests and custom manufactured reagents, as well as other research-based and pharmacogenomics products, versions of which are available for use with our XT-8 instrument for research use only (RUO).

In addition, we offer our sample-to-answer ePlex instrument and Respiratory Pathogen (RP) Panel for sale in the United States and Europe. We have also obtained CE Mark for our ePlex BCID-FP Panel, ePlex BCID-GP Panel, and ePlex BCID-GN Panel. We intend to submit 510(k) applications to the FDA for all three of our ePlex BCID panels in 2018 and we continue to actively evaluate the development of additional assay panels that we believe will meet important unmet clinical needs, which our ePlex system is uniquely positioned to address.

Revenue

Revenue from operations is derived from product sales, principally of our diagnostic tests. We sell our instruments and place our instruments with customers through a reagent rental agreement, under which we retain title to the instrument and customers commit to purchasing minimum quantities of reagents and test cartridges over a period of one to five years.

Cost of Revenues

Cost of revenues includes the cost of materials, direct labor and manufacturing overhead costs used in the manufacture of our consumable tests, including royalties on product sales. Cost of revenues also includes depreciation on revenue generating instruments that have been placed with our customers under a reagent rental agreement, cost of instruments sold to customers, amortization of licenses related to our products and other costs such as warranty, royalty and customer and product technical support. We manufacture our test cartridges in our facilities and have recently invested in significant capacity for expansion. Any potential underutilized capacity may result in a high cost of revenues relative to revenue, if manufacturing volumes are not able to fully absorb operating costs. Our instruments are procured from contract manufacturers. We expect our cost of revenues to increase as we place additional instruments and manufacture and sell additional diagnostic tests; however, we expect our gross margins related to our product sales to increase as production volume increases, manufacturing efficiencies are realized, improvements to procurement practices are made, instrument reliability increases and other improvements decrease costs as a percentage of sales.

Sales and Marketing Expenses

Sales and marketing expenses include costs associated with our direct sales force, sales management, marketing, technical support and business development activities. These expenses primarily consist of salaries, commissions, benefits, stock-based compensation, travel, advertising, promotions, product samples and trade show expenses. We expect sales and marketing expenses to continue to increase as we scale-up our domestic and international commercial efforts and expand our customer base.

Research and Development Expenses

Research and development expenses primarily include costs associated with the development of our ePlex system and its expanding test menu. These expenses also include certain clinical study expenses incurred in preparation for FDA clearance for these products, intellectual property prosecution and maintenance costs, and quality assurance expenses. The expenses primarily consist of salaries, benefits, stock-based compensation, outside design and consulting services, laboratory supplies, costs of consumables and materials used in product development, contract research organization costs, clinical studies and facility costs. We expense all research and development costs in the periods in which they are incurred.

General and Administrative Expenses

Our general and administrative expenses include costs associated with our executive, accounting and finance, compliance, information technology, legal, facilities, human resource, administrative and investor relations activities. These expenses consist primarily of salaries, benefits, stock-based compensation costs, independent auditor costs, legal fees, consultants, insurance, and public company expenses, such as stock transfer agent fees and listing fees for NASDAQ.

Foreign Exchange Gains and Losses

Transactions in currencies other than our functional currency are translated at the prevailing rates on the dates of the applicable transaction. Foreign exchange gains and losses arise from differences in exchange rates during the period between the date a transaction denominated in a foreign currency is consummated and the date on which it is settled or translated.

Interest Income and Interest Expense

Interest income includes interest earned on our cash and cash equivalents and investments. Interest expense represents interest incurred on our loan payable and on other liabilities.

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Provision for Income Taxes

We make certain estimates and judgments in determining income tax expense for financial statement purposes. These estimates and judgments occur in the calculation of certain tax assets and liabilities, which arise from differences in the timing of recognition of revenue and expense for tax and financial statement purposes.

We assess the likelihood that we will be able to recover our deferred tax assets. We consider all available evidence, both positive and negative, including historical levels of income, expectations and risks associated with estimates of future taxable income, and ongoing prudent and feasible tax planning strategies in assessing the need for the valuation allowance. If it is more likely than not that we will not recover our deferred tax assets, we will increase our provision for income taxes by recording a valuation allowance against the deferred tax assets that we estimate will not ultimately be recoverable.

Our income tax returns are based on calculations and assumptions that are subject to examination by the Internal Revenue Service and other tax authorities. In addition, the calculation of our tax liabilities involves dealing with uncertainties in the application of complex tax regulations. We recognize liabilities for uncertain tax positions based on a two-step process. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon settlement. While we believe we have appropriate support for the positions taken on our tax returns, we regularly assess the potential outcomes of examinations by tax authorities in determining the adequacy of our provision for income taxes. We continually assess the likelihood and amount of potential adjustments and adjust the income tax provision, income taxes payable and deferred taxes in the period in which the facts that give rise to a revision become known.

Results of Operations — Three and nine months ended September 30, 2017 compared to the three and nine months ended September 30, 2016:

	Three Months Ended September 30,								Nine Months Ended September 30,
	2017		2016		$ Change		% Change		2017		2016		$ Change		% Change
	(dollars in thousands)								(dollars in thousands)
Revenue	$	11,603	$	10,813	$	790	7	%	$	36,497	$	34,389	$	2,108	6	%

Our revenue consists primarily of revenue from the sale of test cartridges (which we refer to as consumables), with the remaining portion resulting from the sale of instruments and other revenues.

The increase in revenue for the three months ended September 30, 2017 was primarily driven by an increase in instrument revenues of $1,465,000 compared to $540,000 for the same period of the prior year. Consumable revenue for the three months ended September 30, 2017 was $9,994,000 compared to $10,111,000 for the same period of the prior year. The decrease in consumable revenue was primarily driven by changes in customer purchasing patterns. Pricing changes did not have a material impact on revenue during the current quarter.

The increase in revenue for the nine months ended September 30, 2017 was primarily due to an increase in instrument revenues of $2,507,000 compared to $756,000 for the same period of the prior year. Additionally, consumable revenue for the nine months ended September 30, 2017 increased to $33,539,000 compared to $33,081,000 for the same period of the prior year. The increase was primarily due to an increase in purchases of our infectious disease assays to an expanding customer base. Pricing changes did not have a material impact on revenue for the nine month period.

	Three Months Ended September 30,									Nine Months Ended September 30,
	2017		2016		$ Change			% Change		2017		2016		$ Change			% Change
	(dollars in thousands)									(dollars in thousands)
Cost of Revenue	$	7,400	$	4,362	$	3,038		70	%	$	21,227	$	13,457	$	7,770		58	%
Gross Profit	$	4,203	$	6,451	$	(2,248	)	(35	)%	$	15,270	$	20,932	$	(5,662	)	(27	)%

The increase in cost of revenue for the three months ended September 30, 2017, compared to the same period of the prior year, was primarily related to production-related investments associated with manufacturing expansion for continued commercialization of the ePlex system. Increases in our cost of revenue were attributable to increased product support expenses of $887,000, product costs of $829,000, increased inventory reserve expense of $246,000, unfavorable absorption variances of $654,000, increased royalties expense of $95,000, and a decrease in other production efficiencies of $314,000.

The increase in cost of revenue for the nine months ended September 30, 2017, compared to the same period of the prior year, was primarily related to increased production and production-related investments associated with manufacturing expansion for continued commercialization of the ePlex system. Increases in our cost of revenue were attributable to product costs of $2,277,000

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corresponding to volume increases, increased product warranty expense of $222,000 driven by a greater instrument installed base, increased product support expenses of $2,442,000, increased inventory reserve expense of $587,000, increased royalties expense of $204,000, and unfavorable absorption variances of $1,780,000, and a decrease in other production efficiencies of $142,000.

	Three Months Ended September 30,								Nine Months Ended September 30,
	2017		2016		$ Change		% Change		2017		2016		$ Change		% Change
	(dollars in thousands)								(dollars in thousands)
Sales and Marketing	$	5,121	$	3,223	$	1,898	59	%	$	14,974	$	10,232	$	4,742	46	%

The increase in sales and marketing expense for the three months ended September 30, 2017, when compared to the same period of the prior year, was primarily driven by an increase in employee-related expenses of $1,429,000, increased travel expenses of $114,000, an increase in supplies and equipment of $236,000 associated with additional instrument placements and an increase of $90,000 in outside service expense, primarily related to increased activity associated with our international distribution center and other consulting costs.

The increase in sales and marketing expense for the nine months ended September 30, 2017, when compared to the same period of the prior year, was primarily driven by an increase in employee-related expenses of $3,368,000, increased travel expenses of $340,000, increased supplies and equipment of $531,000 associated with additional instrument placements, increased marketing expenses of $247,000 associated with the commercial launch of the ePlex system, and an increase of $141,000 in outside service expense, primarily related to increased activity associated with our international distribution center.

	Three Months Ended September 30,								Nine Months Ended September 30,
	2017		2016		$ Change		% Change		2017		2016		$ Change		% Change
	(dollars in thousands)								(dollars in thousands)
General and Administrative	$	3,565	$	3,227	$	338	10	%	$	11,553	$	10,522	$	1,031	10	%

The increase in general and administrative expense for the three months ended September 30, 2017, compared to the same period of the prior year, was primarily driven by an increase in employee-related expenses of $47,000, increased travel expenses of $31,000, an increase in audit and tax expenses of $145,000 related to the timing of services provided, and an increase in miscellaneous expenses of $67,000.

The increase in general and administrative expense for the nine months ended September 30, 2017, compared to the same period of the prior year, was primarily driven by an increase in employee-related expenses of $934,000, including a $731,000 increase in stock-based compensation expense due to additional headcount and an increase in travel expense of $113,000.

	Three Months Ended September 30,									Nine Months Ended September 30,
	2017		2016		$ Change			% Change		2017		2016		$ Change			% Change
	(dollars in thousands)									(dollars in thousands)
Research and Development	$	10,248	$	11,628	$	(1,380	)	(12	)%	$	34,297	$	37,100	$	(2,803	)	(8	)%

The decrease in research and development expense for the three months ended September 30, 2017, compared to the same period of the prior year, was primarily driven by a decrease in ePlex system development expenses of $2,125,000 following the system's commercial launch, partially offset by an increase in supplies and prototype materials utilized by our assay development teams of $769,000.

The decrease in research and development expense for the nine months ended September 30, 2017, compared to the same period of the prior year, was primarily driven by a decrease in ePlex system development expenses of $7,421,000, a decrease in clinical trial expense of $211,000 due to the timing of trials, and a decrease in freight expense of $294,000, partially offset by an increase in supplies and prototype materials utilized by our assay development teams of $5,061,000 and increase in intellectual property prosecution and maintenance expenses of $237,000.

	Three Months Ended September 30,											Nine Months Ended September 30,
	2017			2016			$ Change			% Change		2017			2016			$ Change			% Change
	(dollars in thousands)											(dollars in thousands)
Other Income (Expense)	$	(686	)	$	(417	)	$	(269	)	65	%	$	(1,690	)	$	(956	)	$	(734	)	77	%

Other income (expense) represents non-operating income and expense, including, but not limited to, earnings on cash, cash equivalents, restricted cash, marketable securities, foreign exchange gains and losses of foreign currency denominated balances, and interest expense related to debt.

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The change in other income (expense) for the three months ended September 30, 2017, compared to the same period of the prior year, was primarily due to an increase in net interest expense of $329,000 on amounts due under our credit facility, partially offset by an increase in unrealized gains related to foreign currency remeasurement.

The change in other income (expense) for the nine months ended September 30, 2017, compared to the same period of the prior year, was primarily due to an increase in net interest expense of $955,000 on amounts due under our credit facility, partially offset by an increase in unrealized gains related to foreign currency remeasurement.

	Three Months Ended September 30,										Nine Months Ended September 30,
	2017			2016		$ Change			% Change		2017		2016		$ Change		% Change
	(dollars in thousands)										(dollars in thousands)
Income tax expense (benefit)	$	(9	)	$	14	$	(23	)	(164	)%	$	68	$	45	$	23	51	%

Due to net losses incurred, we have only recorded tax provisions related to minimum tax payments in the United States and tax liabilities generated by our foreign subsidiaries.

Liquidity and Capital Resources

To date, we have funded our operations primarily from the sale of our common stock, borrowings, and cash from operations. We have incurred net losses from continuing operations each year and have not yet achieved profitability. As of September 30, 2017, we had $68,857,000 of working capital, including $86,917,000 in cash, cash equivalents, and marketable securities. We believe our existing cash, cash equivalents and marketable securities as of September 30, 2017 will enable us to fund our operations for at least the next 12 months.

The following table summarizes, for the periods indicated, selected items in our unaudited condensed consolidated statements of cash flows:

	September 30,
Nine months ended (in thousands):	2017			2016
Net cash used in operating activities	$	(40,605	)	$	(25,159	)
Net cash used in investing activities	(38,445		)	(30,741		)
Net cash provided by financing activities	90,269			39,806
Effect of exchange rate on cash	(17		)	2
Net increase (decrease) in cash and cash equivalents	$	11,202		$	(16,092	)

Cash flows used in operating activities

Net cash used in operating activities increased $15,446,000 for the nine months ended September 30, 2017 compared to the same period of the prior year. The increase in cash used in operating activities was primarily due to an increase of $9,912,000 from changes in operating assets and liabilities and a $9,389,000 increase in net loss, partially offset by non-cash adjustments of $3,855,000. The main factors affecting the change in operating assets and liabilities included an increase in inventory purchases and decreases in accounts payables, accrued compensation, and other liabilities, partially offset by a decrease in accounts receivable and other assets.

Cash flows used in investing activities

Net cash used in investing activities increased by $7,704,000 for the nine months ended September 30, 2017, compared to the same period of the prior year, primarily due to an increase in net purchases and sale of marketable securities of $9,743,000, partially offset by decreases in purchases of property, plant, and equipment of $1,289,000, intellectual property milestone payments of $300,000, and the maturities of marketable securities of $450,000.

Cash flows provided by financing activities

Net cash provided by financing activities increased by $50,463,000 for the nine months ended September 30, 2017,compared to the same period of the prior year, primarily due to an increase in proceeds from sale of common stock of $56,387,000 and increase in proceeds from debt issuance of $5,000,000, partially offset by an increase in the repayments of principal borrowings of $6,095,000 and costs associated with our sale of common stock of $4,378,000.

We have prepared cash flow forecasts which indicate, based on our current cash resources available, that we will have sufficient resources to fund our business for at least the next 12 months. We expect capital outlays and operating expenditures to increase over the next several years as we grow our customer base and revenues, and expand our research and development,

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commercialization and manufacturing activities. Factors that could affect our capital requirements, in addition to those previously identified, include, but are not limited to: 

• the level of revenues and the rate of our revenue growth;

• change in demand from our customers;

• the level of expenses required to expand our commercial (sales and marketing) activities;

• the level of research and development investment required to develop and commercialize our ePlex system and maintain our XT-8 system;

• our need to acquire or license complementary technologies;

• the costs of filing, prosecuting, defending and enforcing patent claims and other intellectual property rights;

• competing technological and market developments; and

• changes in regulatory policies or laws that affect our operations.

Loan and Security Agreement

In January 2015, we entered into a Loan and Security Agreement, or the LSA, with Solar Capital Partners (as successor-in-interest to General Electric Capital Corporation), and certain other financial institutions party thereto, as lenders, pursuant to which we obtained up to $35,000,000 in a series of term loans and a revolving loan in the maximum amount of $5,000,000. As of June 2017, we borrowed all $35,000,000 under the terms loans as provided in the LSA. As of September 30, 2017, we had not borrowed any of the $5,000,000 available under the revolving loan.

Pursuant to the terms of the LSA, the lenders are granted a security interest in (a) all of our personal property, other than intellectual property (which is subject to a negative pledge), but including our rights to payment in respect of intellectual property, (b) the stock of all of our domestic subsidiaries, and (c) 65% of the voting stock and 100% of the non-voting stock of each of our non-U.S. subsidiaries.

The LSA contains customary affirmative and negative covenants, including, without limitation, delivering reports and notices relating to our financial condition and certain regulatory events and intellectual property matters, as well as limiting the creation of liens, the incurrence of indebtedness, and the making of certain investments, payments and acquisitions, other than as specifically permitted by the LSA.

Common Stock Equity Offering

On June 13, 2017, we entered into an Underwriting Agreement, or the Underwriting Agreement, with J.P. Morgan Securities LLC and Merrill Lynch, Pierce, Fenner & Smith Incorporated acting as joint book-running managers and as representatives of the underwriters, or the Underwriters, relating to the issuance and sale of 6,382,978 shares of our common stock, or the Offering. The price to the public in the Underwriting Agreement was $11.75 per share, before underwriting discounts and commissions. Under the terms of the Underwriting Agreement, we granted the Underwriters an option, exercisable for 30 days, to purchase up to an additional 957,446 shares of our common stock.

The Offering was completed on June 19, 2017, pursuant to which we sold a total of 7,340,424 shares of our common stock for gross proceeds of $86,250,000. We incurred $5,175,000 in related transaction costs, comprised of underwriting discounts and commissions paid in accordance with the Underwriting Agreement, and approximately $338,000 in additional miscellaneous offering expenses.

Letter of Credit

In September 2012, we provided a $758,000 letter of credit issued by Banc of California to the landlord of our executive office facility in Carlsbad, California. This letter of credit was secured with $758,000 of restricted cash at September 30, 2017.

Contractual Obligations

As of September 30, 2017, there were no material changes to our contractual obligations from those disclosed within the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2016.

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Critical Accounting Policies and Estimates

Our discussion and analysis of our financial condition and results of operations are based upon our unaudited condensed consolidated financial statements, which have been prepared in accordance with U.S. GAAP. The preparation of these financial statements requires us to make certain estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses. We evaluate our estimates on an ongoing basis, including those related to doubtful accounts, inventories, valuation of intangible assets and other long-term assets, income taxes, and stock-based compensation. We base our estimates on historical experience and on various other assumptions we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities not readily apparent from other sources. Actual results may differ from these estimates. Our critical accounting policies and estimates are discussed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2016. There have been no material changes to our critical accounting policies and estimates during the nine months ended September 30, 2017.

Off-Balance Sheet Arrangements

We have no off-balance sheet arrangements. We have provided a $758,000 standby letter of credit to our landlord as security for future rent in connection the lease of our executive office facility in Carlsbad, California, which is recorded as restricted cash on our unaudited condensed consolidated balance sheets.

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ITEM 3.     QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There have been no material changes in our market risks during the nine months ended September 30, 2017.    

Our exposure to market risk is currently limited to our cash and cash equivalents, all of which have maturities of less than three months, and marketable securities, which have maturities of greater than three months. 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 may in the future maintain a portfolio of cash equivalents and investments in a variety of securities that management believes to be of high credit quality. We currently do not hedge interest rate exposure. Because of the short-term nature of our cash equivalents and investments, we do not believe that an increase in market rates would have a material negative impact on the value of our portfolio.

Interest Rate Risk

As of September 30, 2017, based on current interest rates and total borrowings outstanding, a hypothetical 100 basis point increase or decrease in interest rates would have an immaterial pre-tax impact on our results of operations.

Foreign Currency Exchange Risks

We are a U.S. entity and our functional currency is the U.S. dollar. Substantially all of our revenues were derived from sales in the United States. We have business transactions in foreign currencies, however, we believe we do not have significant exposure to risk from changes in foreign currency exchange rates at this time. We do not currently engage in hedging or similar transactions to reduce our foreign currency risks. We will continue to monitor and evaluate our internal processes relating to foreign currency exchange, including the potential use of hedging strategies.

ITEM 4.    CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures designed to provide reasonable assurance that information required to be disclosed in reports we file under the Exchange Act is recorded, processed, summarized and reported within the specified time periods and accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. The design of any system of controls is based, in part, upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

As of the end of the period covered by this report, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based on this evaluation, our Chief Executive Officer and Chief Financial Officer, with the participation of management, concluded that, as of September 30, 2017, our disclosure controls and procedures were effective.

Changes in Internal Control over Financial Reporting

There has been no change in our internal controls over financial reporting that occurred in the quarterly period covered by this report that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

ITEM 1.    LEGAL PROCEEDINGS

We are from time to time subject to various claims and legal actions in the ordinary course of our business. We believe that there are currently no legal actions that would reasonably be expected to have a material adverse effect on our results of operations or financial condition.

ITEM 1A.RISK FACTORS

You should consider the risks described below and all of the other information set forth in this Quarterly Report on Form 10-Q, including our unaudited condensed consolidated financial statements and the related notes and “Management's Discussion and Analysis of Financial Condition and Results of Operations,” in evaluating our business and prospects. If any of the risks described below occurs, our business, financial condition or results of operations could be negatively affected. In that case, the market price of our common stock could decline.

We have marked with an asterisk (*) those risks described below that reflect new risks or substantive changes from the risks described under Part I, Item 1A “Risk Factors” included in our Annual Report on Form 10-K for the year ended December 31, 2016.

We may not successfully commercialize our ePlex system at the levels we anticipate.*

Our current plan for achieving positive cash flow and our future growth projections relies upon the successful international and domestic commercialization of our ePlex system at the levels we project. Our ePlex system integrates automated nucleic acid extraction and amplification with our eSensor technology to allow operators to place raw or minimally prepared patient samples directly into our test cartridges and obtain clinically relevant results. We believe that our ePlex system offers certain advantages over competitive systems, including superior multiplexing capability, reduced hands-on processing time, testing capacity and flexibility, and other attributes. However, the commercial success of ePlex will depend on a number of factors, including, but not limited to:

• our ability to manage the risks associated with scaling our manufacturing operations;

• our and our supplier's ability to consistently manufacture highly complex products that deliver valid and accurate results at the level required for large-scale market adoption;

• product reliability;

• overall market acceptance;

• our ability to offer a broad and clinically relevant test menu at a competitive price;

• the effective management of purchase and supply commitments and inventory levels in line with anticipated product demand;

• the availability of products in appropriate quantities and at expected costs to meet anticipated demand and drive market adoption; and

• increased repair or re-engineering costs due to product returns or warranty claims.

If we are unsuccessful in effectively commercializing our ePlex system at the levels we project within our expected time frame, or at all, our investment in anticipation of growth that does not materialize, or which develops more slowly than we expect, may harm our financial results, reduce our cash balances, and result in overcapacity, which may adversely affect our business and future prospects.

Our financial results will depend on the acceptance and increased demand among our target customers and the medical community of our molecular diagnostic technologies and products.

Our future success depends on the belief by our target customers and the medical community that our molecular diagnostic products, including our ePlex instrument and test menu, are a reliable, medically-relevant, accurate and cost-effective replacement for other diagnostic testing methods. Our business success depends on our ability to convince our target customers to perform these tests internally with our products if they have historically outsourced their testing needs or have historically used non-molecular methods to perform such testing, or to replace their current molecular testing platforms with our system and its related test offerings.

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Many other factors may affect the market acceptance and commercial success of our molecular diagnostic technology and products, including:

• the relative convenience, ease of use, accuracy, reliability, scalability, cost, and time-to-result of our diagnostic products over competing products;

• the introduction of new technologies and competing products that may make our technologies and products a less attractive solution for our target customers;

• the breadth and relevance of our menu of available diagnostic tests relative to our competitors;

• our success in training our customers in the proper use of our products;

• the acceptance in the medical community and key opinion leaders of our molecular diagnostic technology and products;

• the extent and success of our marketing and sales efforts; and

• general economic conditions.

Professional societies, government agencies, practice management groups, private health/science foundations and organizations involved in healthcare issues may publish guidelines, recommendations or studies for the healthcare and patient communities. Recommendations of government agencies or these other organizations may relate to such matters as cost-effectiveness and use of related products. Organizations like these have in the past made recommendations about our competitors’ products, such as the need for less frequent screening tests, which could result in reduced product sales. Moreover, the perception by the investment community or stockholders that recommendations, guidelines or studies will result in decreased use of our products could adversely affect the prevailing market price for our common stock.

We face intense competition from established and new companies in the molecular diagnostics field and expect to face increased competition in the future.*

The markets for our technologies and products are highly competitive and we expect the intensity of competition to increase. We compete with companies engaged in the development, commercialization and distribution of similar products intended for clinical molecular diagnostic applications. Categories of our competitors include:

• companies developing and marketing multiplex molecular diagnostics systems, including: Luminex; Nanosphere, Inc. (which was acquired by Luminex in June 2016); bioMerieux (which acquired BioFire Diagnostics, Inc.); Abbott Molecular Diagnostics; Hologic, Inc.; Seegene and Cepheid (which was acquired by Danaher Corporation);

• large hospital-based laboratories and reference laboratories who provide large-scale testing using their own proprietary testing methods, including Quest Diagnostics Incorporated and Laboratory Corporation of America; and

• companies that manufacture laboratory-based tests and analyzers, including: Cepheid; Siemens; Hologic, Inc.; Qiagen NV; bioMérieux; Roche Diagnostics; and Abbott Molecular Diagnostics.

Our diagnostic tests also face competition from laboratory developed tests, or LDTs, developed by national and regional reference laboratories and hospitals. LDTs may not currently be subject to the same regulatory requirements, including those requiring clinical trials and FDA review and clearance or approval that may apply to our diagnostic products.

We anticipate that we will face increased competition in the future as new companies enter the market with new technologies, our competitors improve their current products and expand their menu of diagnostic tests, and as we expand our operations internationally. Many of our current and potential competitors have greater name recognition, more substantial intellectual property portfolios, longer operating histories, additional test menu, significantly greater resources to invest in new technologies, more substantial experience in new product development, greater regulatory expertise, and more extensive manufacturing and distribution capabilities. It is critical to our success that we anticipate changes in technology and customer requirements and successfully introduce enhanced and competitive technology to meet our customers’ and prospective customers’ needs on a timely basis.

In addition, we have limited marketing, sales and distribution experience and capabilities. Our ability to achieve profitability depends on attracting customers for our products and building brand loyalty. To successfully perform sales, marketing, distribution and customer support functions ourselves, we face a number of risks, including:

• our ability to attract and retain the skilled support team, marketing staff and sales force necessary to commercialize and gain market acceptance for our technology and our products;

• the ability of our sales and marketing team to identify and penetrate the potential customer base, including hospitals and national and regional reference laboratories; and

• the difficulty of establishing brand recognition and loyalty for our products.

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Some hospital-based and reference laboratories may not consider adopting our instrument systems unless we offer a broader menu of diagnostic tests or may choose not to convert from competitive products. In addition, in order to commercialize our products, we are required to undertake time consuming and costly development activities, including clinical studies for which the outcome is uncertain. Products that appear promising during early development and preclinical studies may, nonetheless, fail to demonstrate the results needed to support regulatory approval or, if approved, may not generate the demand we expect. If we are unable to effectively compete, our revenues and our ability to achieve profitability will be significantly impaired.

We may not expand sales of our ePlex system outside the United States at the levels we anticipate.*

In June 2016, we obtained CE Mark under the European In-Vitro Diagnostic Devices Directive (98/79/EC) for our ePlex instrument and ePlex RP Panel; in April 2017, we obtained CE Mark for our ePlex BCID-FP Panel; and in June 2017, we obtained CE Mark for our ePlex BCID-GP Panel and BCID-GN Panel. We are commercializing our ePlex system in Europe utilizing a direct sales and technical support team in certain key European countries, which we have augmented with a third party logistics provider that is responsible for managing the international delivery of our products and providing certain other related services. We have also engaged a number of distributors in certain European countries and intend to further expand internationally over time. If we are unable to establish the infrastructure or recruit highly qualified personnel to support our international direct sales and support organization, if we fail to adequately plan for or integrate our direct sales activities with those of our third party logistics provider, or if we are unsuccessful in developing awareness and acceptance of our products and technology internationally, our anticipated revenue growth internationally may not materialize at the levels we expect, our customers may not receive the level of service or product dependability they expect from us, and our future financial performance may be adversely affected. Furthermore, any distributors we establish in particular geographic regions may not commit the necessary resources to market and sell our products to meet our expectations. If distributors do not perform adequately or in compliance with applicable laws and regulations in particular geographic areas, or if we are unable to locate distributors in particular geographic areas, our ability to realize revenue growth based on sales outside the United States would be harmed.

If our customers are not adequately reimbursed or compensated for the use of our products we may have difficulty selling our products.*

Our ability to sell our products depends in part on the extent to which reimbursement related to performing tests using our products is available from governmental authorities, such as Medicare and other domestic and foreign governmental programs, private insurance plans, managed care organizations and other organizations. There are ongoing efforts by governmental and third-party payors to contain or reduce the costs of healthcare coverage. For example, certain Medicare Administrative Contractors (MACs) recently issued draft local coverage determinations proposing to limit or eliminate Medicare reimbursement for the use of multiplex molecular respiratory tests on certain patient populations, which, if ultimately implemented, could negatively impact the use of our and our competitors’ respiratory tests in those particular situations. In addition, efforts to reform the healthcare delivery system in the United States and Europe has increased pressure on healthcare providers to reduce costs, which has, in turn, increased pressure on medical device manufacturers to decrease prices charged for their products. If purchasers or users of our products are not able to obtain adequate reimbursement for the cost of using our products, either directly or indirectly, they may forego or reduce their purchase and use of our products.

Obtaining coverage and reimbursement approval for a product from each government or third-party payor is a time consuming and costly process that could require us to provide supporting scientific, clinical and cost-effectiveness data for the use of our product to each government or third-party payor. We may not be able to provide data sufficient to gain acceptance with respect to coverage and reimbursement. In addition, eligibility for coverage does not imply that any product will be covered and reimbursed in all cases or reimbursed at a rate that allows our potential customers to make a profit or even cover their costs. Further, third-party payors may choose to reimburse our customers per test based on individual biomarker detection, rather than on the basis of the number of results given by the test. This may result in our customers electing to use separate tests to screen for each disease or condition so that they can receive reimbursement for each test they conduct. In that event, these entities may purchase separate tests for each disease, rather than products, such as ours, that can be used to return highly multiplexed test results.

From time to time we and our key suppliers experience, and may in the future experience, difficulties scaling manufacturing operations to the levels required to support our anticipated growth.

To date, we have produced our products in limited quantities relative to the quantities necessary to achieve our desired revenue growth. Developing the necessary manufacturing and quality procedures internally and in conjunction with our key suppliers for a significant number of our newly developed, highly complex products and product components is a challenging process. From time to time we and our suppliers experience, and may in the future experience, manufacturing variability and may

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not be able to consistently produce sufficient quantities of high quality products and product components at the levels necessary to achieve our revenue growth expectations or to support our product development timelines. If we or our key suppliers continue to encounter difficulties in producing sufficient yields of high quality products or product components, or scaling manufacturing operations as a result of, among other things, process and manufacturing transfer complexities, quality control and quality assurance issues, and/or availability of subcomponents, equipment and raw material supplies, our reputation may be harmed and we may not achieve our anticipated financial results or product development goals within the time frame we expect, or at all. In addition, finding solutions to product quality, reliability, and variability issues is time consuming and expensive, and we may incur significant additional costs or lose revenue as a result of, among other things, delayed product introduction, product recalls, shipment holds, scrapped material, and warranty and service obligations.

To manage our anticipated future growth effectively, we must enhance our manufacturing and supply chain capabilities, infrastructure and operations, information technology infrastructure, and financial and accounting systems and controls. Organizational growth and scale-up of operations could strain our existing managerial, operational, financial and other resources. If our management is unable to effectively prepare for our expected future growth, our expenses may increase more than anticipated, our revenue could grow more slowly than expected, and we may not be able to achieve our commercialization or product development goals. Our failure to effectively implement the necessary processes and procedures and otherwise prepare for our anticipated growth could have a material adverse effect on our future financial condition and prospects.

Disruptions in the supply of raw materials, consumable goods or other key product components, or issues associated with their cost or quality from our single source suppliers, could result in delays or difficulties successfully commercializing our ePlex system or a significant disruption in sales and profitability.

We must manufacture or engage third parties to manufacture components of our products in sufficient quantities and on a timely basis, while maintaining product quality, acceptable manufacturing costs and complying with regulatory requirements. Our instrument systems and certain critical components are custom-made by only a few outside suppliers. In certain instances, we and our customers have a sole source supply for certain key products, product components and ancillary items used to run our tests. If we are unable to satisfy our forecasted demand from existing suppliers for our products, or we or our customers are unable to find alternative suppliers for key product components or ancillary items at reasonably comparable prices, it could have a material adverse effect on our financial condition and results of operations. Additionally, although we have entered into supply agreements with most of our suppliers of strategic reagents and parts to help ensure component availability and flexible purchasing terms with respect to the purchase of such components, if our suppliers discontinue production of a key component for one or more of our products, we may be unable to identify or secure a viable, cost-effective alternative on reasonable terms, or at all, which could limit our ability to manufacture our products.

In determining the required quantities of our products and the manufacturing schedule, we must make significant judgments and estimates based on seasonality, inventory levels, current market trends and other related factors. Because of the inherent nature of estimates and our limited experience in marketing our products, there could be significant differences between our estimates and the actual amounts of products we require. This can result in shortages if we fail to anticipate demand, or excess inventory and write-offs if we order more than we need.

Reliance on third-party manufacturers entails risks to which we would not be subject if we manufactured these components ourselves, including:

• reliance on third parties for regulatory compliance and quality assurance;

• possible breaches of manufacturing agreements by the third parties because of factors beyond our control;

• possible regulatory violations or manufacturing problems experienced by our suppliers;

• possible termination or non-renewal of agreements by third parties, based on their own business priorities, at times that are costly or inconvenient for us;

• the potential obsolescence and/or inability of our suppliers to obtain required components;

• the potential delays and expenses of seeking alternate sources of supply or manufacturing services;

• the inability to qualify alternate sources without impacting performance claims of our products;

• reduced control over pricing, quality and timely delivery due to the difficulties in switching to alternate suppliers or assemblers;

• the potential for financial hardship or other detrimental circumstances at key suppliers that may impact our ability to source key materials or services required for the manufacturing of our products; and

• increases in prices of raw materials and key components.

The manufacturing operations for our test cartridges use highly technical processes involving unique, proprietary techniques. In addition, the manufacturing equipment we use would be costly and time consuming to repair or replace. Any

29

interruption in our operations or decrease in the production capacity of our manufacturing facility or the facilities of any of our key suppliers because of equipment failure, natural disasters such as earthquakes, tornadoes and fires, or otherwise, would limit our ability to meet customer demand for our products and would have a material adverse effect on our business, financial condition and results of operations. In the event of a disruption, we may lose customers and we may be unable to regain those customers thereafter. Our insurance may not be sufficient to cover all of our potential losses and may not continue to be available to us on acceptable terms, or at all.

If our products do not perform as expected or the reliability of the technology on which our products are based is questioned, our operating results and business would suffer.

Our success depends on the market’s confidence that we can provide reliable, high quality, molecular diagnostic products. We believe that customers in our target markets are likely to be particularly sensitive to product defects and errors. As a result, our reputation and the public image of our products and technologies will be significantly impaired if our products fail to perform as expected. Although our diagnostic systems are designed to be user friendly, the functions they perform are complex and our products may develop or contain undetected defects or errors.

We currently manufacture our proprietary test cartridges at our Carlsbad, California manufacturing facilities. We outsource manufacturing of our instruments and much of the disposable component molding for our test cartridges. Leica, the contract manufacturer of our XT-8 instruments, and Plexus Corp., the contract manufacturer of our ePlex instrument, both specialize in the manufacturing of electronic and electro-mechanical devices. While we work closely with Plexus and Leica to ensure continuity of supply while maintaining high quality and reliability, we cannot guarantee that these efforts will be successful.

If we experience a material defect or error in any of our current or future products, it could result in the loss or delay of revenues, increased costs, delayed or reduced market acceptance, damaged reputation, diversion of development and management resources, legal and/or regulatory claims, recalls, increased insurance costs or increased service and warranty costs, any of which could materially harm our business, financial condition and results of operations.

We also face the risk of product liability exposure related to the sale of our products. We currently carry product liability insurance that covers us against specific product liability claims. We also carry a separate general liability and umbrella policy that covers us against certain claims but excludes coverage for product liability. Any claim in excess of our insurance coverage, or for which we do not have insurance coverage, would need to be paid out of our cash reserves, which would harm our financial condition. We cannot assure you that we have obtained sufficient insurance or broad enough coverage to cover potential claims. Also, we cannot assure you that we can or will maintain our insurance policies on commercially acceptable terms, or at all. A product liability claim could significantly harm our business, financial condition and results of operations.

Our quarterly revenue and operating results may vary significantly and we may experience constraints or inefficiencies caused by unanticipated acceleration and deceleration of customer demand.

Revenue from our infectious disease products fluctuates based upon the occurrence of related outbreaks and changes in testing recommendations and available therapies. Influenza and other respiratory-related outbreaks are usually more concentrated in the first and fourth quarters of the year. New information or the introduction of advanced treatment options with respect to a particular disease may also affect the rate of related diagnostic testing. Although certain infectious disease outbreaks tend to occur each year, the timing, severity and length of these incidents varies from one year to another and can vary across different patient populations. In addition, we may not accurately predict the impact of new therapies on disease prevalence or changes to infectious disease testing recommendations affecting our products. As a result of one or more of these factors, we may not be able to accurately forecast sales from our infectious disease products.

Also, unanticipated changes in customer demand for our products may result in constraints or inefficiencies related to our manufacturing, sales force, customer service and administrative infrastructure. These constraints or inefficiencies may adversely affect us as a result of delays, lost potential product sales or loss of current or potential customers due to their dissatisfaction.

Our revenue, results of operations and cash flows would suffer upon the loss of a significant customer.

Our largest customer, Laboratory Corporation of America, Inc., accounted for approximately 27% of our total revenue for the fiscal year ended December 31, 2016. The loss of a significant customer or a significant reduction in the amount of product ordered by our significant customers may adversely affect our revenue, results of operations and cash flows.

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We may not be able to correctly estimate or control our future operating expenses, which could lead to cash shortfalls.

Our operating expenses may fluctuate significantly in the future as a result of a variety of factors, many of which may be outside of our control. These factors include, but are not limited to:

• the time and resources required to develop, and conduct clinical studies and obtain regulatory clearances for, our diagnostic tests;

• the expenses we incur for research and development required to maintain and improve our technology, including developing our ePlex test menu;

• the costs of preparing, filing, prosecuting, defending and enforcing patent claims and other patent related costs, including litigation costs and the results of such litigation;

• the expenses we incur in connection with commercialization activities, including product marketing, sales, and distribution expenses;

• the expenses we incur in licensing technologies from third parties to expand the menu of diagnostics tests we plan to offer;

• our sales strategy and whether the revenues from sales of our test cartridges or systems will be sufficient to offset our expenses;

• the costs to attract and retain personnel with the skills required for effective operations; and

• the costs associated with being a public company.

Our budgeted expense levels are based in part on our expectations concerning future revenues from sales of our products, as well as our assessment of the future investments needed to expand our commercial organization and support research and development activities in connection with our ePlex system. We may be unable to reduce our expenditures in a timely manner to compensate for any unexpected events or a shortfall in revenue. Accordingly, a shortfall in demand for our products or other unexpected events could have an immediate and material impact on our business and financial condition.

The regulatory clearance or approval process for certain products is expensive, time consuming and uncertain, and the failure to obtain and maintain required clearances or approvals could prevent us from commercializing our products.*

We are investing significantly in the development of new ePlex molecular diagnostic tests to expand our future product offerings. Our newly developed ePlex tests will require 510(k) clearance or pre-market approval by the FDA prior to marketing those tests for commercial use in the United States. There are a number of potential risks associated with conducting clinical studies and obtaining regulatory clearance. For example, we may have difficulty maintaining the level of reliability and clinical accuracy required to timely complete clinical studies and obtain FDA clearance or approval. In addition, the FDA may require that we conduct additional studies that could impact the cost associated with product clearance and could potentially delay commercial launch of newly developed tests in the United States. We may be unsuccessful in obtaining FDA clearance for our expanding ePlex test menu within our expected timeframe, or at all, which could adversely impact our future financial performance and cause our stock price to decline.

The regulatory environment is constantly evolving. For example, the FDA conducted a review of the pre-market clearance process in response to internal and external concerns regarding the 510(k) program and, in January 2011, announced 25 action items designed to make the process more rigorous and transparent. Some of these proposals, if enacted, could impose additional regulatory requirements for device manufacturers which could delay our ability to obtain new 510(k) clearances, increase the costs of compliance or restrict our ability to maintain our current clearances. Similarly, the European Union, or EU, is transitioning from the existing European Directive 98/79/EC on in vitro diagnostic medical devices, or IVD Directive (IVDD), to the In Vitro Diagnostic Device Regulation, or IVDR. Under the IVDR, the classification of our molecular diagnostic products are impacted, and will result in additional regulatory requirements, which could delay our ability to CE Mark our products. Delays in receipt of, or failure to obtain, clearances or approvals for future products would result in delayed, or no, realization of revenues from such products and in substantial additional costs, which could decrease our profitability.

We must also comply with the applicable FDA and foreign regulatory agency post-market requirements. Any failure to maintain post-market compliance with FDA or foreign regulatory requirements could harm our business, operations, and/or financial condition.

We derive revenues from the sale of research use only, or RUO, tests and custom manufactured reagents, which are not intended for diagnostic purposes. Clinical laboratories are regulated under CLIA and may validate the clinical diagnostic use of an LDT specifically for use in their laboratory using any labeled products. The FDA has traditionally practiced enforcement discretion regarding the use of the LDTs for clinical diagnostic purposes. However, the FDA has promulgated draft guidance which outlines stringent regulatory requirements for CLIA labs in order to use LDTs for clinical diagnostic application. These proposed

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requirements, if implemented, may result in a significant reduction in the sale of our RUO or custom manufactured products, which could reduce our revenues and adversely affect our operations and/or financial condition.

We are subject to various federal and state laws pertaining to health care fraud and abuse, including anti-kickback, self-referral, false claims and fraud laws, and any violations by us of such laws could result in fines or other penalties.

Our commercial, research and other financial relationships with healthcare providers and institutions are subject to various federal and state laws intended to prevent health care fraud and abuse. The federal anti-kickback statute prohibits the knowing offer, receipt or payment of remuneration in exchange for or to induce the referral of patients or the use of products or services that would be paid for in whole or part by Medicare, Medicaid or other federal health care programs. Remuneration has been broadly defined to include anything of value, including cash, improper discounts, and free or reduced price items and services. Many states have similar laws that apply to their state health care programs as well as private payors. Violations of the anti-kickback laws can result in exclusion from federal health care programs and substantial civil and criminal penalties.

The FCA imposes liability on persons who, among other things, present or cause to be presented false or fraudulent claims for payment by a federal health care program. The FCA has been used to prosecute persons submitting claims for payment that are inaccurate or fraudulent, that are for services not provided as claimed, or for services that are not medically necessary. We have implemented procedures designed to ensure our compliance with relevant legal requirements. Nevertheless, if our marketing, sales or other arrangements, including our reagent rental arrangements, were determined to violate anti-kickback or related laws, including the FCA, then our revenues could be adversely affected, which would likely harm our business, financial condition and results of operations.

The Health Care Act also imposes reporting and disclosure requirements on device manufacturers for payments to healthcare providers and ownership of their stock by healthcare providers. In February 2013, the Centers for Medicare and Medicaid Services, or, CMS, released the final rule implementing the federal Physician Payments Sunshine Act, or the Sunshine Act. The law requires certain pharmaceutical, biologic, and medical device manufacturers to annually report to CMS payments or other transfers of value they furnish to physicians and teaching hospitals. These reporting requirements took effect on August 1, 2013. Failure to submit required information may result in significant civil monetary penalties. We expect compliance with the Sunshine Act to impose significant administrative and financial burdens on us.

In addition, there has been a recent trend of increased federal and state regulation of payments made to physicians for marketing. Some states, such as California, Massachusetts and Vermont, mandate implementation of corporate compliance programs, along with the tracking and reporting of gifts, compensation and other remuneration to physicians. The shifting commercial compliance environment and the need to build and maintain robust and expandable systems to comply with different compliance and/or reporting requirements in multiple jurisdictions increase the possibility that a healthcare company may run afoul of one or more of the requirements.

We are also subject to the U.S. Foreign Corrupt Practices Act, or the FCPA, and other countries’ anti-corruption/anti-bribery regimes, such as the U.K. Bribery Act. The FCPA prohibits improper payments or offers of payments to foreign governments and their officials for the purpose of obtaining or retaining business. Safeguards we implement to discourage improper payments or offers of payments by our employees, consultants, sales agents or distributors may be ineffective, and violations of the FCPA and similar laws may result in severe criminal or civil sanctions, or other liabilities or proceedings against us, any of which would likely harm our reputation, business, financial condition and results of operations.

Legislative or regulatory healthcare reforms may have a material adverse effect on our business and results of operations.

Federal and state governments in the United States are undertaking efforts to control growing health care costs through legislation, regulation and voluntary agreements with medical care providers and third-party payors. In March 2010, Congress enacted the Patient Protection and Affordable Care Act, or the PPACA. While the PPACA involves expanding coverage to more individuals, it includes regulatory mandates and other measures designed to constrain medical costs. Among other requirements, the PPACA imposes a 2.3% excise tax on sales of medical devices by manufacturers. In December 2015, the excise tax was suspended for 2016 and 2017. Taxable devices include certain medical devices intended for use by humans, with limited exclusions for devices purchased by the general public at retail for individual use. There is no exemption for small companies, and we paid the tax from 2013 through 2015. Recently, Congress and the new administration have proposed and taken various steps to revise, repeal, or delay implementation of various aspects of PPACA. If the PPACA is significantly revised, repealed, or if implementation of various aspects are delayed, such modification, repeal, or delay may impact our business, financial condition, results of operations, cash flows and the trading price of our securities. Complying with PPACA may significantly increase our tax liabilities and costs, which could adversely affect our business and financial condition.

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In August 2011, President Obama signed into law the Budget Control Act of 2011, which among other things, created automatic reductions to several government programs, including aggregate reductions of Medicare payments to providers of up to 2% per fiscal year. In April 2013, the 2% Medicare payment reductions went into effect. In addition to the potential impacts to PPACA under the new administration, there could be sweeping changes to the Budget Control Act and other healthcare reforms. We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced demand for our products or additional pricing pressure.

Our products could infringe patent rights of others, which may require costly litigation and, if we are not successful, could cause us to pay substantial damages or limit our ability to commercialize our products.

Our commercial success depends on our ability to develop, manufacture and market our systems and tests and use our proprietary technology without infringing the patents and other proprietary rights of third parties. As the molecular diagnostics industry expands and more patents are issued, the risk increases that there may be patents issued to third parties that relate to our products and technology of which we are not aware or that we must challenge to continue our operations as currently contemplated. Our products may infringe or may be alleged to infringe these patents.

The patent positions of medical device companies can be highly uncertain and involve complex legal and factual questions for which important legal principles remain unresolved. No consistent policy regarding the breadth of claims allowed in patents in these fields has emerged to date in the United States or in many foreign jurisdictions. Both the U.S. Supreme Court and the Court of Appeals for the Federal Circuit have made, and will likely continue to make, changes in how the patent laws of the United States are interpreted. For example, three Supreme Court cases, Association for Molecular Pathology et al. v. Myriad Genetics, Inc., et al., Mayo Collaborative Services v. Prometheus Laboratories, and Alice v. CLS Bank, have introduced additional questions regarding the patentability of isolated naturally occurring genes and gene fragments, proteins, peptides, natural products, and related diagnostic and therapeutic methods, which are likely to be resolved only through continued litigation. The overall impact of these decisions and others on the molecular diagnostics industry remains uncertain and our interpretation of the scope of these rulings on existing or future patents may be inaccurate.

There is a significant amount of uncertainty regarding the extent of patent protection and infringement. Companies may have filed pending patent applications that cover technologies we incorporate in our products. As a result, we could be subjected to substantial damages for past infringement or be required to modify our products or stop selling them if it is ultimately determined that our products infringe a third party’s proprietary rights. Even if we are successful in defending against potential intellectual property infringement claims, we could incur substantial costs in doing so. Any litigation related to such claims could consume our resources and lead to significant damages, royalty payments, or an injunction on the sale of certain products. Any additional licenses to patented technology could obligate us to pay substantial additional royalties, which could adversely impact our product costs and harm our business.

If we are unable to obtain, maintain and enforce intellectual property protection covering our products, others may be able to make, use or sell products substantially the same as ours, which could adversely affect our ability to compete in the market.

Our commercial success is dependent in part on obtaining, maintaining and enforcing intellectual property rights, including our patents and other intellectual property rights. If we are unable to obtain, maintain and enforce intellectual property protection covering our products, others may be able to make, use or sell products that are substantially the same as ours without incurring the sizeable development and licensing costs that we have incurred, which would adversely affect our ability to compete in the market.

We seek to obtain and maintain patents and other intellectual property rights to restrict the ability of others to market products that compete with our products. Currently, our patent portfolio is comprised on a worldwide basis of more than 100 owned and exclusively licensed patents and approximately 30 additional pending patent applications. In general, patents have a term of at least 20 years from the application filing date or earlier claimed priority date. A majority of our issued and exclusively licensed patents are scheduled to expire by 2021, with approximately one half of the patents expiring by 2018. Several of our pending applications have the potential to mature into patents that may expire between 2028 and 2034. However, not all of the pending or future patent applications owned by or licensed to us are guaranteed to mature into patents, and, moreover, issued patents owned by or licensed to us now or in the future may be found by a court to be invalid or otherwise unenforceable. Also, even if our patents are determined by a court to be valid and enforceable, they may not be sufficiently broad to prevent others from marketing products similar to ours or designing around our patents, despite our patent rights, nor provide us with freedom to operate unimpeded by the patent rights of others.

We also rely on trade-secret protection to protect our interests in proprietary know-how and for processes for which patents are difficult to obtain or enforce. We may not be able to protect our trade secrets adequately. We have limited control over the

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protection of trade secrets used by our licensors, collaborators and suppliers. Although we use reasonable efforts to protect our trade secrets, our employees, consultants, contractors, outside scientific collaborators and other advisors may unintentionally or willfully disclose our information to competitors. Enforcing a claim that a third party illegally obtained and is using any of our trade secrets is difficult, expensive and time consuming, and the outcome is unpredictable. We rely, in part, on non-disclosure and confidentiality agreements with our employees, consultants and other parties to protect our trade secrets and other proprietary technology. These agreements may be breached and we may not have adequate remedies for any breach. Moreover, others may independently develop equivalent proprietary information, and third parties may otherwise gain access to our trade secrets and proprietary knowledge. Any disclosure of confidential data into the public domain or to third parties could allow our competitors to learn our trade secrets and use the information in competition against us.

We and our suppliers, contract manufacturers and customers are subject to various governmental regulations, and we may incur significant expenses to comply with, and experience delays in our product commercialization as a result of, these regulations.

Our manufacturing processes and facilities and those of some of our contract manufacturers must comply with the federal Quality System Regulation, or QSR, which covers the procedures and documentation of the design, testing, production, control, quality assurance, labeling, packaging, storage and shipping of our devices. The FDA enforces the QSR through periodic announced and/or unannounced inspections of manufacturing facilities. We and our contract manufacturers have been, and anticipate in the future being, subject to such inspections, as well as to inspections by other federal and state regulatory agencies.

We must also file reports of device corrections and removals and adhere to the FDA’s rules on labeling and promotion. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses, and a company that is found to have improperly promoted off-label uses may be subject to significant liability, including substantial monetary penalties and criminal prosecution.

Failure to comply with applicable FDA requirements, or later discovery of previously unknown problems with our products or manufacturing processes, including our failure or the failure of one of our contract manufacturers to take satisfactory corrective action in response to an adverse QSR inspection, can result in, among other things:

• administrative or judicially imposed sanctions;

• injunctions or the imposition of civil penalties;

• recall or seizure of our products;

• total or partial suspension of production or distribution;

• withdrawal or suspension of marketing clearances or approvals;

• clinical holds;

• warning letters;

• refusal to permit the import or export of our products; and

• criminal prosecution.

Any of these actions, in combination or alone, could prevent us from marketing, distributing or selling our products and would likely harm our business.

In addition, a product defect or regulatory violation could lead to a government-mandated or voluntary recall by us. We believe that the FDA would request that we initiate a voluntary recall if a product was defective or presented a reasonable risk of injury or gross deception. Regulatory agencies in other countries have similar authority to recall devices because of material deficiencies or defects in design or manufacture that could endanger health. Any recall would divert management attention and financial resources, could cause the price of our common stock to decline and expose us to product liability or other claims, including contractual claims from parties to whom we sold products, and harm our reputation with customers.

The use of our diagnostic products by our customers is also affected by CLIA and related federal and state regulations that provide for regulation of laboratory testing. CLIA is intended to ensure the quality and reliability of clinical laboratories in the United States by mandating specific standards in the areas of personnel qualifications, administration, participation in proficiency testing, patient test management, quality assurance, quality control and inspections. Current or future CLIA requirements or the promulgation of additional regulations affecting laboratory testing may prevent some laboratories from using some or all of our diagnostic products.

Our credit facility contains restrictions that limit our flexibility in operating our business.*

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We must comply with certain affirmative and negative covenants under our credit facility, including covenants that limit or restrict our ability to, among other things:

• incur additional indebtedness or issue certain preferred shares;

• pay dividends on, repurchase or make distributions in respect of, our capital stock or make other restricted payments;

• make certain investments or acquisitions;

• sell certain assets;

• create liens; or

• enter into certain transactions with our affiliates.

If we default under the agreement, because of a covenant breach or otherwise, the outstanding amounts thereunder could become immediately due and payable and the lenders could terminate all commitments to extend further financing.

We may need to raise additional funds in the future, and such funds may not be available on a timely basis, or at all.

Until such time, if ever, as we can generate positive cash flows from operations, we will be required to finance our operations with our cash resources and amounts made available under our credit facility. We may need to raise additional funds in the future to support our operations. We cannot be certain that additional capital will be available as needed, on acceptable terms, or at all. If we require additional capital at a time when investment in our company, in molecular diagnostics companies, or the marketplace in general is limited, we may not be able to raise such funds at the time that we desire, or at all. If we do raise additional funds through the issuance of equity or convertible securities, the percentage ownership of holders of our common stock could be significantly diluted. In addition, newly issued securities may have rights, preferences or privileges senior to those of holders of our common stock. If we raise additional funds through collaborations and licensing arrangements, we could be required to relinquish significant rights to our technologies and products, or grant licenses on terms that are not favorable to us.

We have a history of net losses, and we may never achieve or maintain profitability.

We have a history of significant net losses and a limited history commercializing our molecular diagnostic products. Our net losses were approximately $50.6 million and $42.2 million for the years ended December 31, 2016 and 2015, respectively. As of September 30, 2017, we had an accumulated deficit of $402.6 million. We expect to continue to incur significant expenses for the foreseeable future in connection with our ongoing operations, primarily related to expanding our commercial organization (sales and marketing), research and development, manufacturing, clinical and regulatory activities related to our ePlex system, maintaining our existing intellectual property portfolio, obtaining additional intellectual property rights, and investing in corporate infrastructure. We cannot provide any assurance that we will achieve profitability and, even if we achieve profitability, that we will be able to sustain or increase profitability on a quarterly or annual basis. Further, because of our limited commercialization history and the rapidly evolving nature of our target market, we have limited insight into the trends that may emerge and affect our business. We may make errors in predicting and reacting to relevant business trends, which could harm our business and financial condition.

We incur costs and demands upon management as a result of complying with the laws and regulations affecting public companies in the United States, and failure to comply with these laws could harm our business and the price of our common stock.

As a public company listed in the United States, we incur significant legal, accounting and other expenses. In addition, changing laws, regulations and standards relating to corporate governance and public disclosure, including regulations implemented by the SEC, the Public Company Accounting Oversight Board (PCAOB), and The NASDAQ Global Market, may increase our legal and financial compliance costs and make some activities more time consuming. These laws, regulations and standards are subject to varying interpretations and, as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. We intend to invest resources to comply with evolving laws, regulations and standards, and this investment may result in increased general and administrative expenses and a diversion of management’s time and attention from revenue-generating activities to compliance activities. If we nevertheless fail to comply with new laws, regulations and standards, regulatory authorities may initiate legal proceedings against us and our business may be harmed.

Economic conditions and an uncertain economic outlook may adversely impact our business, results of operations, financial condition or liquidity.

Global economic conditions may remain challenging and uncertain for the foreseeable future. These conditions may not only limit our access to capital but also make it extremely difficult for our customers, our vendors and us to accurately forecast and plan future business activities, and they could cause U.S. and foreign businesses and consumers to slow spending on our products

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and services, which would delay and lengthen sales cycles. Some of our customers rely on government research grants to fund technology purchases. If negative trends in the economy affect the government’s allocation of funds to research, there may be less grant funding available for certain of our customers to purchase technologies from us. Certain of our customers may face challenges gaining timely access to sufficient credit or may otherwise be faced with budget constraints, which could result in decreased purchases of our products or in an impairment of their ability to make timely payments to us. If our customers do not make timely payments to us, we may be required to assume greater credit risk relating to those customers, increase our allowance for doubtful accounts, and our days sales outstanding would be negatively impacted. Although we maintain allowances for doubtful accounts for estimated losses resulting from the inability of our customers to make required payments, we may not continue to experience the same loss rates that we have in the past. Additionally, these economic conditions and market turbulence may also impact our suppliers, causing them to be unable to supply sufficient quantities of customized components in a timely manner, thereby impairing our ability to manufacture on schedule and at commercially reasonable costs.

We are exposed to risks associated with long-lived and intangible assets that may become impaired and result in an impairment charge.

The carrying amounts of long-lived and intangible assets are affected whenever events or changes in circumstances indicate that the carrying amount of any asset may not be recoverable. These events or changes might include an inability to successfully deliver an instrument to the marketplace and attain customer acceptance, a change in the rights or use of licensed intellectual property, adjustments to our depreciation assumptions, or other matters. Adverse events or changes in circumstances may affect the estimated discounted future cash flows expected to be derived from long-lived and intangible assets. If at any time we determine that an impairment has occurred, we will be required to reflect the impaired value as a charge, resulting in a reduction in earnings in the quarter such impairment is identified and a corresponding reduction in our net asset value. In the past we have incurred, and in the future we may incur, impairment charges. A material reduction in earnings resulting from such a charge could cause us to fail to meet the expectations of investors and securities analysts, which could cause the price of our stock to decline.

Providing instrument systems to our customers through reagent rental agreements may harm our liquidity.

Many of our systems are provided to customers via “reagent rental” agreements, under which customers are afforded the right to use the instrument in return for a commitment to purchase minimum quantities of reagents and test cartridges over a period of time. Accordingly, we must either incur the expense of manufacturing instruments well in advance of receiving sufficient revenues from test cartridges to recover our expenses or obtain third party financing sources for the purchase of our instrument. The amount of capital required to provide instrument systems to customers depends on the number of systems placed. Our ability to generate capital to cover these costs depends on the amount of our revenues from sales of reagents and test cartridges sold through our reagent rental agreements. We do not currently sell enough reagents and test cartridges to recover all of our fixed expenses, and therefore we currently have a net loss. If we cannot sell a sufficient number of reagents and test cartridges to offset our fixed expenses, our liquidity will continue to be adversely affected.

We use hazardous chemicals, biological materials and infectious agents in our business. Any claims relating to improper handling, storage or disposal of these materials could be time consuming and costly.

Our research, product development and manufacturing processes involve the controlled use of hazardous materials, including chemicals, biological materials and infectious disease agents. Our operations produce hazardous waste products. We cannot eliminate the risk of accidental contamination or discharge and any resulting injury from these materials. We may be sued for any injury or contamination that results from our use or the use by third parties of these materials, and our liability may exceed our insurance coverage and our total assets. Federal, state and local laws and regulations govern the use, manufacture, storage, handling and disposal of these hazardous materials and specified waste products, as well as the discharge of pollutants into the environment and human health and safety matters. Our operations are regulated and may require that environmental permits and approvals be issued by applicable government agencies. Compliance with environmental laws and regulations may be expensive and may impair our research, development and production efforts. If we fail to comply with these requirements, we could incur substantial costs, including civil or criminal fines and penalties, clean-up costs or capital expenditures for control equipment or operational changes necessary to achieve and maintain compliance. In addition, we cannot predict the impact on our business of new or amended environmental laws or regulations or any changes in the way existing and future laws and regulations are interpreted and enforced.

If we are unable to retain key employees or hire additional skilled employees, we may be unable to achieve our goals.

Our performance is substantially dependent on the performance of our senior management. Competition for top management personnel is intense and we may not be able to recruit and retain the personnel we need. Our senior managers can terminate their relationship with us at any time. The loss of services of any of these key personnel could significantly reduce our

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operational effectiveness and investor confidence and our stock price could decline. We do not maintain key-man life insurance on any of our employees.

In addition, our product development and marketing efforts could be delayed or curtailed if we are unable to attract, train and retain highly skilled technical employees and scientific advisors. To expand our research, product development and commercial efforts, we will need to retain additional people skilled in areas such as electrochemical and molecular science, information technology, manufacturing, sales, marketing and technical support. Because of the complex and technical nature of our systems and the dynamic market in which we compete, any failure to attract and retain a sufficient number of qualified employees could materially harm our ability to develop and commercialize our technology. We may not be successful in hiring or retaining qualified personnel, and any failure to do so could have a material adverse effect on our business, financial condition and results of operations.

Cyberattacks and other security breaches could compromise our proprietary information which could harm our business and reputation.

In the ordinary course of our business, we generate, collect and store proprietary information, including intellectual property and business information. The secure storage, maintenance, and transmission of and access to this information is critical to our operations, business strategy, and reputation. Computer hackers may attempt to penetrate our computer systems or our third party IT service providers' systems and, if successful, misappropriate our proprietary information. In addition, an employee, contractor, or other third-party with whom we do business may attempt to circumvent our security measures in order to obtain such information, and may purposefully or inadvertently cause a breach involving such information. While we will continue to implement additional protective measures to reduce the risk of and detect cyber-attacks, these incidents are becoming more sophisticated and frequent, and the techniques used in such attacks evolve rapidly and are difficult to detect. Despite our cybersecurity measures, our information technology networks and infrastructure may still be vulnerable to unpermitted access by hackers or other breaches, or employee error or malfeasance. Any such compromise of our, or our third party IT service providers' data security and access to, or public disclosure or loss of, confidential business or proprietary intellectual property information could disrupt our operations, damage our reputation, provide our competitors with valuable information, and subject us to additional costs which could adversely affect our business.

Information technology systems implementation issues could disrupt our internal operations and adversely affect our financial results.

Portions of our information technology infrastructure may experience interruptions, delays or cessations of service or produce errors in connection with ongoing systems implementation work. In particular, we have implemented an enterprise resource planning software system. To more fully realize the potential of this system, we are continually reassessing and upgrading processes and this may be more expensive, time consuming and resource intensive than planned. Any disruptions that may occur in the operation of this system or any future systems could increase our expenses and adversely affect our ability to report in an accurate and timely manner the results of our consolidated operations, our financial position and cash flows and to otherwise operate our business in a secure environment, all of which could adversely affect our financial results, stock price and reputation.

Our ability to use our net operating loss carryforwards may be limited.

As of December 31, 2016, we had net operating loss, or NOL, carryforwards available of approximately $206.9 million for U.S. federal income tax purposes. These loss carryforwards will expire in varying amounts through 2035. Section 382 of the U.S. Internal Revenue Code of 1986, as amended, or the Code, generally imposes an annual limitation on the amount of NOL carryforwards that may be used to offset taxable income when a corporation has undergone significant changes in stock ownership. We have determined that we have experienced multiple ownership changes under Section 382 of the Code. Our ability to use the current NOL carryforwards may also be limited by the issuance of common stock in the future. To the extent our use of NOL carryforwards is limited, our income may be subject to corporate income tax earlier than it would if we were able to use NOL carryforwards. We have recorded a full valuation allowance against our net deferred tax assets.

We also had state NOL carryforwards of approximately $165.0 million as of December 31, 2016. We have recorded a full valuation allowance against our net deferred tax assets.

Provisions of our certificate of incorporation, our bylaws and Delaware law could make an acquisition of our Company, which may be beneficial to our stockholders, more difficult and may prevent attempts by our stockholders to replace or remove the current members of our board and management.

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Certain provisions of our certificate of incorporation and bylaws could discourage, delay or prevent a merger, acquisition or other change of control that stockholders may consider favorable, including transactions in which you might otherwise receive a premium for your shares. Furthermore, these provisions could prevent or frustrate attempts by our stockholders to replace or remove members of our Board of Directors. These provisions also could limit the price that investors might be willing to pay in the future for our common stock, thereby depressing the market price of our common stock. Stockholders who wish to participate in these transactions may not have the opportunity to do so. These provisions:

• allow the authorized number of directors to be changed only by resolution of our Board of Directors;

• provide that our stockholders may remove our directors only for cause;

• establish a classified board of directors, such that not all members of the Board of Directors may be elected at one time;

• authorize our Board of Directors to issue without stockholder approval up to 100,000,000 shares of common stock, that, if issued, would dilute our stock ownership and could operate as a “poison pill” to dilute the stock ownership of a potential hostile acquirer to prevent an acquisition that is not approved by our Board of Directors;

• authorize our Board of Directors to issue without stockholder approval up to 5,000,000 shares of preferred stock, the rights of which will be determined at the discretion of the Board of Directors that, if issued, could operate as a “poison pill” to dilute the stock ownership of a potential hostile acquirer to prevent an acquisition that is not approved by our Board of Directors;

• require that stockholder actions must be effected at a duly called stockholder meeting or by unanimous written consent;

• establish advance notice requirements for stockholder nominations to our Board of Directors or for stockholder proposals that can be acted on at stockholder meetings;

• limit who may call stockholder meetings; and

• require the approval of the holders of 80% of the outstanding shares of our capital stock entitled to vote in order to amend certain provisions of our certificate of incorporation and bylaws.

In addition, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which may, unless certain criteria are met, prohibit large stockholders, in particular those owning 15% or more of the voting rights on our common stock, from merging or combining with us for a prescribed period of time.

ITEM 2.    UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

None.

ITEM 3.    DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4.    MINE SAFETY DISCLOSURES

None.

ITEM 5.    OTHER INFORMATION

None.

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ITEM 6.     EXHIBITS

Exhibit	Description
3.1	Certificate of Incorporation (incorporated by reference to our Registration Statement on Form S-1 (File No. 333-165562) filed with the Commission on March 19, 2010).
3.2	Amended and Restated Bylaws (incorporated by reference to our Current Report on Form 8-K filed with the SEC on October 31, 2014).
31.1*	Certification of Principal Executive Officer Required Under Rule 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended.
31.2*	Certification of Principal Financial Officer Required Under Rule 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended.
32.1*	Certification of Principal Executive Officer and Principal Financial Officer Required Under Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended, and 18 U.S.C. §1350.
101.INS	XBRL Instance Document.
101.SCH	XBRL Taxonomy Extension Schema Document.
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB	XBRL Taxonomy Extension Label Linkbase Document.
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document.

*Filed herewith.

39

SIGNATURES

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.

			GENMARK DIAGNOSTICS, INC.
Date:	11/2/2017	By:	/s/ HANY MASSARANY
			Hany Massarany
			President and Chief Executive Officer
			(Principal Executive Officer)
Date:	11/2/2017	By:	/s/ SCOTT MENDEL
			Scott Mendel
			Chief Financial Officer
			(Principal Financial and Accounting Officer)

40

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Hany Massarany, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2017 of GenMark Diagnostics, Inc.;

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:	11/2/2017	By:	/s/ Hany Massarany
			Hany Massarany
			President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Scott Mendel, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2017 of GenMark Diagnostics, Inc.;

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:	11/2/2017	By:	/s/ Scott Mendel
			Scott Mendel
			Chief 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 GenMark Diagnostic, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Periodic Report”), we, Hany Massarany, President and Chief Executive Officer of the Company, and Scott Mendel, 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:

(i) the Periodic Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

Date:	11/2/2017	By:	/s/ Hany Massarany
			Hany Massarany
			President and Chief Executive Officer
Date:	11/2/2017	By:	/s/ Scott Mendel
			Scott Mendel
			Chief Financial Officer

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 27, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	GenMark Diagnostics, Inc.
Entity Central Index Key	0001487371
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		54,795,061

XML

Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 27,161,000	$ 15,959,000
Marketable securities	59,756,000	25,607,000
Accounts receivable, net of allowances of $2,792 and $2,740, respectively	7,800,000	9,048,000
Inventories	7,109,000	6,633,000
Prepaid expenses and other current assets	1,971,000	1,202,000
Total current assets	103,797,000	58,449,000
Property and equipment, net	21,586,000	18,268,000
Intangible assets, net	2,772,000	2,670,000
Cash, Cash Equivalents, and Short-term Investments	86,917,000
Restricted cash	758,000	758,000
Other long-term assets	194,000	179,000
Total assets	129,107,000	80,324,000
Current liabilities
Accounts payable	7,242,000	8,703,000
Accrued compensation	5,227,000	5,650,000
Loan payable	19,548,000	7,935,000
Other current liabilities	2,923,000	4,133,000
Liabilities, Current	34,940,000	26,421,000
Long-term liabilities
Deferred rent	3,225,000	3,652,000
Long-term Debt, Excluding Current Maturities	9,918,000	11,880,000
Other non-current liabilities	387,000	220,000
Total liabilities	48,470,000	42,173,000
Stockholders’ equity
Preferred stock, $0.0001 par value; 5,000 authorized, none issued	0	0
Common stock, $0.0001 par value; 100,000 authorized; 54,792 and 46,554 shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively	5,000	4,000
Additional paid-in capital	483,242,000	393,322,000
Accumulated deficit	(402,584,000)	(355,270,000)
Accumulated other comprehensive income	(26,000)	95,000
Total stockholders’ equity	80,637,000	38,151,000
Total liabilities and stockholders’ equity	$ 129,107,000	$ 80,324,000

XML

Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for Doubtful Accounts Receivable, Current	$ 2,792	$ 2,740
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, authorized	5,000,000	5,000,000
Preferred stock, issued	0	0
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, authorized	100,000,000	100,000,000
Common stock, issued	54,665,000	46,554,000
Common stock, outstanding	54,665,000	46,554,000

XML

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue
Product revenue	$ 11,552,000	$ 10,727,000	$ 36,313,000	$ 34,111,000
License and other revenue	51,000	86,000	184,000	278,000
Total revenue	11,603,000	10,813,000	36,497,000	34,389,000
Cost of revenue	7,400,000	4,362,000	21,227,000	13,457,000
Gross profit	4,203,000	6,451,000	15,270,000	20,932,000
Operating expenses
Sales and marketing	5,121,000	3,223,000	14,974,000	10,232,000
General and administrative	3,565,000	3,227,000	11,553,000	10,522,000
Research and development	10,248,000	11,628,000	34,297,000	37,100,000
Total operating expenses	18,934,000	18,078,000	60,824,000	57,854,000
Loss from operations	(14,731,000)	(11,627,000)	(45,554,000)	(36,922,000)
Other income (expense)
Interest income	247,000	43,000	353,000	98,000
Interest expense	1,009,000	476,000	2,270,000	1,061,000
Other income	76,000	16,000	227,000	7,000
Total other income (expense)	(686,000)	(417,000)	(1,690,000)	(956,000)
Loss before provision for income taxes	(15,417,000)	(12,044,000)	(47,244,000)	(37,878,000)
Income tax expense (benefit)	(9,000)	14,000	68,000	45,000
Net loss	$ (15,408,000)	$ (12,058,000)	$ (47,312,000)	$ (37,923,000)
Net loss per share, basic and diluted	$ (0.28)	$ (0.27)	$ (0.95)	$ (0.88)
Weighted average number of shares outstanding, basic and diluted	54,726,000	44,377,000	49,908,000	43,308,000
Other comprehensive loss
Net loss	$ 15,408,000	$ 12,058,000	$ 47,312,000	$ 37,923,000
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	51,000	(4,000)	145,000	9,000
Net unrealized gains (losses) on marketable securities, net of tax	(9,000)	20,000	(24,000)	(2,000)
Comprehensive loss	$ (15,366,000)	$ (12,042,000)	$ (47,191,000)	$ (37,916,000)

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Condensed Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating activities
Net loss	$ 47,312	$ 37,923
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	3,811	2,739
Amortization of premiums on investments	4	61
Amortization of deferred debt issuance costs	891	277
Gain on sale of investment in preferred stock	0	(9)
Stock-based compensation	8,386	6,788
Provision for bad debt	51	13
Non-cash inventory adjustments	911	120
Other non-cash adjustments	(190)	20
Changes in operating assets and liabilities:
Accounts receivable	(1,272)	(1,719)
Inventories	(4,813)	(1,048)
Prepaid expenses and other assets	(767)	(596)
Other long-term assets	(16)	0
Accounts payable	(1,468)	916
Accrued compensation	(452)	1,731
Other liabilities	(913)	33
Net cash used in operating activities	(40,605)	(25,159)
Investing activities
Payments for intellectual property licenses	(500)	(800)
Purchases of property and equipment	(3,816)	(5,105)
Purchases of marketable securities	(56,525)	(32,895)
Proceeds from sales of marketable securities	13,896	9
Maturities of marketable securities	8,500	8,050
Net cash used in investing activities	(38,445)	(30,741)
Financing activities
Proceeds from issuance of common stock	86,835	30,448
Costs incurred in conjunction with stock issuance	(5,469)	(1,091)
Principal repayment of borrowings	(6,123)	(28)
Proceeds from borrowings	15,000	10,000
Costs associated with debt issuance	(187)	(30)
Proceeds from stock option exercises	(213)	(507)
Net cash provided by financing activities	90,269	39,806
Effect of exchange rate changes on cash	(17)	2
Net increase (decrease) in cash and cash equivalents	11,202	(16,092)
Cash and cash equivalents at beginning of period	15,959	35,385
Cash and cash equivalents at end of period	27,161	19,293
Non-cash investing and financing activities
Transfer of instruments from (to) property and equipment to (from) inventory	(3,438)	234
Property and equipment costs included in accounts payable	330	1,040
Intellectual property acquisitions included in other current liabilities	0	700
Supplemental cash flow disclosures
Cash paid for income taxes, net	58	38
Cash received for interest	367	58
Cash paid for interest	$ 1,143	$ 761

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Organization and Basis of Presentation

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Basis of Presentation

Organization and Basis of Presentation

GenMark Diagnostics, Inc., the Company or GenMark, was formed by Osmetech plc as a Delaware corporation in February 2010, and had no operations prior to its initial public offering, which was completed in June 2010. The Company is a leading provider of multiplex molecular solutions designed to enhance patient care, improve key quality metrics, and reduce the total cost-of-care.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles, or U.S. GAAP, and applicable regulations of the U.S. Securities and Exchange Commission, or the SEC, and should be read in conjunction with the audited financial statements included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2016 filed with the SEC on February 28, 2017. These unaudited condensed consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods presented. These adjustments are of a normal, recurring nature. Interim period operating results may not be indicative of the operating results for the full year or any future period.

The Company has experienced net losses and negative cash flows from operating activities since its inception and had an accumulated deficit of $402,584,000 as of September 30, 2017. The Company's ability to transition to profitable operations is dependent upon achieving a level of revenues adequate to support its cost structure through expanding its product offerings and consequently increasing its product revenues. As of September 30, 2017, the Company had available cash, cash equivalents, and marketable securities of $86,917,000 and working capital of $68,857,000 available to fund future operations. The Company has prepared cash flow forecasts which indicate, based on the Company's current cash resources available and working capital, that the Company will have sufficient resources to fund its operations for at least one year after the date the financial statements are issued.

Principles of Consolidation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates

The preparation of these unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and the notes thereto. The Company’s significant estimates included in the preparation of the financial statements are related to accounts receivable, inventories, property and equipment, intangible assets, employee-related compensation accruals, warranty liabilities, tax valuation accounts and stock-based compensation. Actual results could differ from those estimates.

Segment Information

The Company currently operates in one reportable business segment, which encompasses the development, manufacturing, sales and support of instruments and molecular tests based on its proprietary eSensor® detection technology. Substantially all of the Company’s operations and assets are in the United States of America.

Recent Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board, or FASB, or other standard setting bodies that the Company adopts as of the specified effective date.

In November 2016, the FASB issued Accounting Standards Update, or ASU, 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires amounts generally described as restricted cash and restricted cash equivalents to be included in the cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU 2016-08 is effective for fiscal years beginning after December 15, 2017 (including interim periods within those periods) using a retrospective transition method for each period presented. Early adoption is permitted. The Company will adopt ASU 2016-18 in the first quarter of 2018 and anticipates the impact of adoption will result in a beginning and ending cash balance increase of approximately $758,000. The Company does not anticipate a material impact in the cash flow resulting from fluctuations in the restricted cash balance.

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting. This guidance simplifies how several aspects of share-based payments are accounted for and presented in the financial statements and is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. The Company's adoption of this guidance in the first quarter of 2017 resulted in excess tax benefits for which a benefit could not be previously recognized of approximately $1,979,000. Upon adoption, the balance of the unrecognized excess tax benefits was reversed with the impact recorded to retained earnings, including a corresponding change to the valuation allowance. Due to the full valuation allowance on the Company's U.S. deferred tax assets, there was no impact to the unaudited condensed consolidated financial statements as a result of adoption. The Company continues to record stock-based compensation expense net of estimated forfeitures.

In February 2016, the FASB issued ASU 2016-02, Leases. This ASU outlines a comprehensive lease accounting model and supersedes the current lease guidance. The new guidance requires lessees to recognize lease liabilities and corresponding right-of-use assets for all leases with lease terms of greater than 12 months. It also changes the definition of a lease and expands the disclosure requirements of lease arrangements. The new guidance must be adopted using the modified retrospective approach and will be effective for the Company starting in the first quarter of 2019, with early adoption permitted. The Company believes that adoption will modify its analysis and disclosures of lease agreements as operating agreements are a significant portion of the Company's total lease commitments. The Company is in the process of determining the effects adoption of this guidance will have on its consolidated financial statements, as well as whether to adopt this guidance early.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, an updated standard on revenue recognition. ASU 2014-09 provides enhancements to the quality and consistency of how revenue is reported by companies while also improving comparability in the financial statements of companies reporting using International Financial Reporting Standards or U.S. GAAP. The main purpose of the new standard is for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which a company expects to be entitled in exchange for those goods or services. The new standard also will result in enhanced disclosures of revenue, provide guidance for transactions that were not previously addressed comprehensively, and improves guidance for multiple-element arrangements. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, which deferred the effective date of the new revenue standard from periods beginning after December 15, 2016 to December l5, 2017, with early adoption permitted but not earlier than the original effective date. Accordingly, the updated standard is effective for the Company in the first quarter of 2018. The Company performed a preliminary assessment of the impact of ASU 2014-09 on its consolidated financial statements, and considered all items outlined in the standard. In assessing the impact, the Company has outlined all revenue generating activities, mapped those activities to deliverables and traced those deliverables to the standard. The Company is now assessing what impact the change in standard will have on those deliverables. The Company will continue to evaluate the future impact and method of adoption of ASU 2014-09 and related amendments on its consolidated financial statements and related disclosures during the remainder of 2017. The Company believes the adoption of this guidance will modify the manner in which the Company analyzes its revenue generating contracts. The Company will adopt the new standard beginning January 2018.

Cash, Cash Equivalents and Marketable Securities

Cash and cash equivalents consist of cash on deposit with banks, money market instruments and certificates of deposit with original maturities of three months or less at the date of purchase. Marketable securities consist of certificates of deposits that mature in greater than three months. Marketable securities are accounted for as "available-for-sale" with the carrying amounts reported in the balance sheets stated at cost, which approximates their fair market value, with unrealized gains and losses, if any, reported as a separate component of stockholders' equity and included in comprehensive loss.

Restricted Cash

Restricted cash represents amounts designated for uses other than current operations and included $758,000 as of September 30, 2017, held as security for the Company’s letter of credit with Banc of California.

Receivables

Accounts receivable consist of amounts due to the Company for sales to customers and are recorded net of an allowance for doubtful accounts. The allowance for doubtful accounts is determined based on an assessment of the collectability of specific customer accounts, the aging of accounts receivable, and a reserve for unknown items based upon the Company’s historical experience.

Product Warranties

The Company generally offers a one-year warranty for its instruments sold to customers and typically up to a 60 day warranty for consumables. Factors that affect the Company’s warranty reserves include the number of units sold, historical and anticipated rates of warranty repairs, and the cost per repair. The Company periodically assesses the adequacy of its warranty reserve and adjusts the amount as appropriate.

Intangible Assets

Intangible assets comprise licenses or sublicenses to technology covered by patents owned by third parties, and are amortized on a straight-line basis over the expected useful lives of these assets, which is generally 10 years. Amortization of licenses typically begins upon the Company obtaining access to the licensed technology and is recorded in cost of revenues for licenses supporting commercialized products. The amortization of licenses to technology supporting products in development is recorded in research and development expenses.

Impairment of Long-Lived Assets

The Company assesses the recoverability of long-lived assets, including intangible assets, by periodically evaluating the carrying value whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If impairment is indicated, the Company writes down the carrying value of the asset to its estimated fair value. This fair value is primarily determined based on estimated discounted future cash flows.

Inventories

Inventories are stated at the lower of cost (first-in, first-out) or net realizable value and include direct labor, materials, and manufacturing overhead. The Company periodically reviews inventory for evidence of slow-moving or obsolete parts, and writes inventory down to net realizable value, as needed. This write-down is based on management’s review of inventories on hand, compared to estimated future usage and sales, shelf-life assumptions, and assumptions about the likelihood of obsolescence. If actual market conditions are less favorable than those projected by the Company, additional inventory write-downs may be required. Inventory impairment charges establish a new cost basis for inventory and charges are not reversed subsequently to income, even if circumstances later suggest that increased carrying amounts are recoverable.

Property and Equipment, net

Property, equipment and leasehold improvements are recorded at cost and depreciated using the straight-line method over the estimated useful lives of the assets, which are identified below. Repair and maintenance costs are expensed as incurred.

Machinery and laboratory equipment	3 - 5 years
Instruments	4 - 5 years
Office equipment	3 - 7 years
Leasehold improvements	over the shorter of the remaining life of the lease or the useful economic life of the asset

Income Taxes

Current income tax expense is the amount of income taxes expected to be payable for the current year. A deferred income tax liability or asset is established for the expected future tax consequences resulting from the differences in financial reporting and tax bases of assets and liabilities. A valuation allowance is provided if it is more likely than not that some or all of the deferred tax assets will not be realized. A full valuation allowance has been recorded against the Company’s net deferred tax assets due to the uncertainty surrounding the Company’s ability to utilize these assets in the future. The Company provides for uncertain tax positions when such tax positions do not meet the recognition thresholds or measurement standards prescribed by the authoritative guidance on income taxes. Amounts for uncertain tax positions are adjusted in periods when new information becomes available or when positions are effectively settled. The Company recognizes accrued interest related to uncertain tax positions as a component of income tax expense.

A tax position that is more likely than not to be realized is measured at the largest amount of tax benefit that is greater than 50% likely of being realized upon settlement with the taxing authority that has full knowledge of all relevant information. Measurement of a tax position that meets the more-likely-than-not threshold considers the amounts and probabilities of the outcomes that could be realized upon settlement using the facts, circumstances and information available at the reporting date.

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Stock-Based Compensation

9 Months Ended

Sep. 30, 2017

Compensation Related Costs [Abstract]

Stock-Based Compensation

Stock-Based Compensation

The Company recognizes stock-based compensation expense related to stock options, restricted stock awards, restricted stock units, and market-based stock units granted to employees and directors in exchange for services under the Company's 2010 Equity Incentive Plan, or the 2010 Plan, and employee stock purchases under the Company's 2013 Employee Stock Purchase Plan, or the ESPP. Employee participation in the 2010 Plan is at the discretion of the Compensation Committee of the Board of Directors of the Company. Each equity award grant under the 2010 Plan reduces the number of shares available for grant thereunder. Stock-based compensation expense is based on the fair value of the applicable award utilizing various assumptions regarding the underlying attributes of the award. Stock-based compensation expense is recorded in cost of sales, sales and marketing, research and development, and/or general and administrative expenses based on the employee's respective function. During the nine months ended September 30, 2017 and 2016, aggregate stock-based compensation expense was $8,386,000 and $6,788,000, respectively.

The estimated fair value, net of forfeitures expected to occur during the vesting period, is amortized as compensation expense that approximates straight-line expense to reflect vesting as it occurs. The stock option expense is derived from the Black-Scholes Option Pricing Model that uses several judgment-based variables to calculate the expense. The market-based stock unit expense is derived from the Monte Carlo Simulation Valuation. The inputs utilized in the valuation of the stock-based awards include the following factors:

• Expected Term. Expected term represents the period that the stock-based awards are expected to be outstanding and is determined by using the simplified method.

• Expected Volatility. Expected volatility represents the estimated volatility in the Company’s stock price over the expected term of the option or market-based award and is determined by review of the Company’s and similar companies’ historical experience.

• Expected Dividend. The valuation methods require a single expected dividend yield as an input. The Company assumed no dividends as it has never paid dividends and has no current plans to do so.

• Risk-Free Interest Rate. The risk-free interest rate used in the Black-Scholes Option Pricing Model is based on published U.S. Treasury rates in effect at the time of grant for periods corresponding with the expected term of the option or market-based award.

All stock options granted under the 2010 Plan are exercisable at a per share price equal to the closing quoted market price of a share of the Company’s common stock on the NASDAQ Global Market on the grant date and generally vest over a period of between one and four years. Stock options are generally exercisable for a period of up to 10 years after grant and are typically forfeited if employment is terminated before the options vest.

The following table summarizes stock option activity during the nine months ended September 30, 2017:

	Number of Shares		Weighted Average Exercise Price
Outstanding at December 31, 2016	2,569,550		$	9.53
Granted	—		$	—
Exercised	(28,966	)	$	7.36
Cancelled	(14,427	)	$	10.04
Outstanding at September 30, 2017	2,526,157		$	9.56
Vested and expected to vest at September 30, 2017	2,500,450		$	9.52
Exercisable at September 30, 2017	2,167,970		$	9.18

Options that were exercisable as of September 30, 2017 had a remaining weighted average contractual term of 5.11 years, and an aggregate intrinsic value of $6,478,000. As of September 30, 2017, there were 2,526,157 stock options outstanding, which had a remaining weighted average contractual term of 5.42 years and an aggregate intrinsic value of $6,783,000. No stock options were granted during the nine months ended September 30, 2017.

Restricted stock awards or units may be granted in connection with the hiring or retention of personnel and are subject to certain conditions. In March 2013, the Company transitioned to granting restricted stock units under the 2010 Plan in lieu of granting restricted stock awards. The compensation expense related to the restricted stock awards or units is calculated as the fair market value of the Company's stock on the grant date and is adjusted for estimated forfeitures. The Company’s restricted stock award and restricted stock unit activity for the nine months ended September 30, 2017 was as follows:

	Restricted Stock Awards				Restricted Stock Units
	Number of Shares		Weighted Average Grant Date Fair Value		Number of Shares		Weighted Average Grant Date Fair Value
Unvested at December 31, 2016	156		$	11.19	1,766,123		$	7.18
Granted	—		$	—	1,164,250		$	10.90
Vested	(156	)	$	11.19	(614,457	)	$	6.80
Cancelled	—		$	—	(165,501	)	$	8.99
Unvested at September 30, 2017	—		$	—	2,150,415		$	9.16

As of September 30, 2017, all compensation expense related to restricted stock awards has been recognized. The total fair value of restricted stock awards that vested during the nine months ended September 30, 2017 and 2016 was $2,000 and $152,000, respectively.

As of September 30, 2017, there was $13,142,000 of unrecognized compensation cost related to unvested restricted stock units, which is expected to be recognized over a weighted average period of 2.76 years. The total fair value of restricted stock units that vested during the nine months ended September 30, 2017 and 2016 was $4,181,000 and $4,526,000, respectively.

The Company issued market-based stock units in February 2017 and February 2016, which may in each case result in the recipient receiving shares of stock equal to 200% of the target number of units granted. The vesting and issuance of Company stock pursuant to these awards depends on the Company's stock performance as compared to the NASDAQ Composite Index over a three-year period following the grant, subject to continued service with the Company. As of September 30, 2017, there was $1,502,000 of unrecognized stock-based compensation expense related to these awards, which is expected to be recognized over a weighted average period of 1.59 years. The Company’s market-based stock unit activity for the nine months ended September 30, 2017 was as follows:

	Market-Based Stock Units
	Number of Shares		Weighted Average Grant Date Fair Value
Unvested at December 31, 2016	150,871		$	11.10
Units granted	166,434		$	13.82
Vested	—		$	—
Cancelled	(12,762	)	$	11.90
Unvested at September 30, 2017	304,543		$	12.55

    The fair value of these market-based stock units was estimated on the grant date using the Monte Carlo Simulation Valuation Model, which estimates the potential outcome of achieving the market condition based on simulated future stock prices, with the following assumptions for the nine months ended September 30, 2017:

	Nine Months Ended
	September 30,
	2017			2016
Expected volatility	54		%	49		%
Risk-free interest rate	1.50		%	0.90		%
Expected dividend	—		%	—		%
Weighted average fair value	$	13.82		$	4.94

The Company issued 43,200 performance-based restricted stock units in March 2014 with a grant date fair value of $12.30 per share. The vesting and issuance of Company stock pursuant to these awards depends on obtaining regulatory clearance of various products within a defined time. Stock-based compensation expense for performance-based awards is recognized when it is probable that the applicable performance criteria will be satisfied. The probability of achieving the relevant performance criteria is evaluated on a quarterly basis. As of September 30, 2017, there was $133,000 of unrecognized stock-based compensation expense related to these awards.

Employee Stock Purchase Plan

The Company's stockholders approved the ESPP in May 2013. A total of 650,000 shares of the Company’s common stock were originally reserved for issuance under the ESPP, which permits eligible employees to purchase common stock at a discount through payroll deductions.

The price at which stock is purchased under the ESPP is equal to 85% of the fair market value of the Company's common stock on the first or the last day of the offering period, whichever is lower. Generally, each offering under the ESPP will be for a period of six months as determined by the Company's Board of Directors; provided that no offering period may exceed 27 months. Employees may invest up to 10% of their qualifying gross compensation through payroll deductions. In no event may an employee purchase more than 1,500 shares of common stock during any six-month offering period. As of September 30, 2017, there were 207,183 shares of common stock available for issuance under the ESPP. The ESPP is a compensatory plan as defined by the authoritative guidance for stock compensation; therefore, stock-based compensation expense related to the ESPP has been recorded during the nine months ended September 30, 2017.

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Net Loss per Common Share

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Net Loss per Common Share

Net Loss per Common Share

Basic net loss per share is calculated by dividing loss available to stockholders of the Company's common stock (the numerator) by the weighted average number of shares of the Company's common stock outstanding during the period (the denominator). Shares issued during the period and shares reacquired during the period are weighted for the portion of the period that they were outstanding. Diluted loss per share is calculated in a similar way to basic loss per share except that the denominator is increased to include the number of additional shares that would have been outstanding if the dilutive potential shares had been issued, unless the effect would be anti-dilutive.

The computations of diluted net loss per share for the three and nine month periods ended September 30, 2017 and 2016 did not include the effects of the following stock options and other equity awards which were outstanding as of the end of each period because the inclusion of these securities would have been anti-dilutive (in thousands):

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Options outstanding to purchase common stock	2,526	2,611	2,526	2,611
Other unvested equity awards	2,466	2,057	2,466	2,057
Total	4,992	4,668	4,992	4,668

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Inventories

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventory on hand as of September 30, 2017 and December 31, 2016 comprised the following (in thousands):

	September 30, 2017		December 31, 2016
Raw materials	$	2,795	$	2,171
Work-in-process	2,709		1,488
Finished goods	1,605		2,974
Total inventories	$	7,109	$	6,633

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Property and Equipment, net

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment, Net [Abstract]

Property and Equipment, net

Property and Equipment, net

Property and equipment as of September 30, 2017 and December 31, 2016 comprised the following (in thousands):

	September 30, 2017			December 31, 2016
Property and equipment — at cost:
Machinery and laboratory equipment	$	12,607		$	10,145
Instruments	13,203			9,869
Office equipment	1,970			1,714
Leasehold improvements	10,497			10,100
Total property and equipment — at cost	38,277			31,828
Less: accumulated depreciation	(16,691		)	(13,560		)
Property and equipment, net	$	21,586		$	18,268

Depreciation expense was $1,206,000 and $854,000 for the three months ended September 30, 2017 and 2016, respectively, and was $3,413,000 and $2,458,000 for the nine months ended September 30, 2017 and 2016, respectively.

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Intangible Assets, net

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets, net

Intangible Assets, net

Intangible assets as of September 30, 2017 and December 31, 2016 comprised the following (in thousands):

	September 30, 2017							December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Licensed intellectual property	$	4,750	$	(1,978	)	$	2,772	$	4,250	$	(1,580	)	$	2,670

In July 2012, the Company entered into a development collaboration and license agreement with Advanced Liquid Logic, Inc., or ALL, which was acquired by Illumina, Inc. in July 2013. Under the terms of the agreement, the Company established a collaborative program to develop in-vitro diagnostic products incorporating ALL’s proprietary electro-wetting technology in conjunction with the Company’s electrochemical detection technology. During the nine months ended September 30, 2017, the Company satisfied certain commercial milestones under this agreement requiring the payment of $500,000, which was recorded as licensed intellectual property.

Intellectual property licenses had a weighted average remaining amortization period of 4.68 years as of September 30, 2017. Amortization expense for these licenses was $151,000 and $94,000 for the three months ended September 30, 2017 and 2016, respectively, and was $398,000 and $281,000 for the nine months ended September 30, 2017 and 2016, respectively. Estimated future amortization expense for these licenses is as follows (in thousands):

Fiscal Years Ending	Future Amortization Expense
Remaining in 2017	$	148
2018	593
2019	593
2020	593
2021	593
Thereafter	252
Total	$	2,772

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Loan Payable

9 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

Long-term Debt [Text Block]

Loan Payable

As of September 30, 2017 and December 31, 2016, long-term debt comprised the following (in thousands):

	September 30, 2017			December 31, 2016
Term Loans
Term Loan A - 6.9% principal	$	10,000		$	10,000
Term Loan B - 6.9% principal	10,000			10,000
Term Loan C - 7.4% principal	15,000			—
Final fee obligation	1,537			400
Repayment of principal	(6,060		)	—
Unamortized issuance costs	(1,011		)	(585		)
Total debt, net	29,466			19,815
Current portion of long-term debt	(19,548		)	(7,935		)
Long-term debt	$	9,918		$	11,880

Term Loans

In January 2015, the Company entered into a Loan and Security Agreement, or the LSA, with Solar Capital Partners (as successor-in-interest to General Electric Capital Corporation), and certain other financial institutions party thereto, as lenders, pursuant to which the Company obtained up to $35,000,000 in a series of term loans and a revolving loan in the maximum amount of $5,000,000. As of June 2017, the Company had borrowed all $35,000,000 under the term loans as provided in the LSA.

The term loans accrue interest at a rate equal to, (a) the greater of 1.00% or the 3-year treasury rate in effect at the time of funding, plus (b) an applicable margin between 4.95% and 5.90% per annum. The Company was only required to make interest payments on amounts borrowed pursuant to the Term Loans from the applicable funding date until June 15, 2017, or the Interest Only Period. Following the Interest Only Period, monthly installments of principal and interest under the Term Loans will be due until the original principal amount and applicable interest is fully repaid by January 12, 2019, or the Maturity Date.

Under the LSA, the Company is required to comply with certain affirmative and negative covenants, including, without limitation, delivering reports and notices relating to the Company’s financial condition and certain regulatory events and intellectual property matters, as well as limiting the creation of liens, the incurrence of indebtedness, and the making of certain investments, dividends, payments and acquisitions, other than as specifically permitted by the LSA. As of September 30, 2017, the Company was in compliance with all covenants under the LSA.

Revolving Loan

Pursuant to the LSA, the Company may borrow up to $5,000,000 under a revolving loan facility. Borrowings under the revolving loan would accrue interest at a rate equal to (a) the greater of 1.25% per annum or a base rate as determined by a three-month LIBOR-based formula, plus (b) an applicable margin between 2.95% and 3.95% based on certain criteria as set forth in the LSA. All principal and interest outstanding under the revolving loan is due and payable on the Maturity Date. The Company is required to pay a commitment fee equal to 0.75% per annum of the amounts made available but unborrowed under the revolving loan. As of September 30, 2017, the Company had not borrowed any of the $5,000,000 available under the revolving loan.

Debt Issuance Costs

As of September 30, 2017 and December 31, 2016, the Company had $1,011,000 and $585,000, respectively, of unamortized debt issuance discount, which is offset against borrowings in long-term and short-term debt.

Amortization of debt issuance costs was $398,000 and $108,000, for the three months ended September 30, 2017 and 2016, respectively, and was $891,000 and $277,000 for the nine months ended September 30, 2017 and 2016, respectively. Amortization of debt issuance costs is included as interest expense in the Company's unaudited condensed consolidated statements of comprehensive loss for the periods presented.

Letter of Credit

In September 2012, the Company provided a $758,000 letter of credit issued by Banc of California to the landlord of its executive office facility in Carlsbad, California. This letter of credit was secured with $758,000 of restricted cash as of September 30, 2017.

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Leases

9 Months Ended

Sep. 30, 2017

Leases [Abstract]

Leases

Leases

The Company has operating and capital lease agreements for its office, manufacturing, warehousing and laboratory space and for office equipment. Rent and operating expenses charged under these arrangements was $399,000 and $476,000 for the three months ended September 30, 2017 and 2016, respectively, and was $1,211,000 and $1,460,000 for the nine months ended September 30, 2017 and 2016, respectively. Pursuant to the Company's lease agreements, a portion of the monthly rent has been deferred. The balance of deferred rent as of September 30, 2017 and December 31, 2016 was $3,781,000 and $4,097,000, respectively.

As of September 30, 2017, the future minimum lease payments required over the next five years under the Company's lease arrangements are as follows (in thousands):

Fiscal Years Ending	Future Minimum Lease Payments
Remaining in 2017	$	447
2018	1,868
2019	1,989
2020	1,997
2021	1,372
Thereafter	1,366
Total	$	9,039

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Fair Value of Financial Instruments

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The carrying amounts of financial instruments, such as cash equivalents, restricted cash, accounts receivable, and accounts payable approximate the related fair values due to the short-term maturities of these instruments.

The Company uses a fair value hierarchy with three levels of inputs, of which the first two are considered observable and the last unobservable, to measure fair value:

• Level 1 — Quoted prices in active markets for identical assets or liabilities.

• Level 2 — Inputs, other than Level 1, that are observable, either directly or indirectly, 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 for substantially the full term of the assets or liabilities.

• Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

The following table presents the financial instruments measured at fair value on a recurring basis and the valuation approach applied to each class of financial instruments as of September 30, 2017 and December 31, 2016 (in thousands):

	September 30, 2017
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Cash equivalents
Money market funds	$	9,129	$	—	$	—	$	9,129
Corporate notes and bonds	—		4,000		—		4,000
Marketable securities
Corporate notes and bonds	—		41,787		—		41,787
U.S. government and agency securities	—		13,984		—		13,984
Commercial paper	—		3,985		—		3,985
Total	$	9,129	$	63,756	$	—	$	72,885
	December 31, 2016
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Cash equivalents
Money market funds	$	556	$	—	$	—	$	556
Marketable securities
Corporate notes and bonds	—		18,821		—		18,821
U.S. government and agency securities	—		3,503		—		3,503
Commercial paper	—		3,283		—		3,283
Total	$	556	$	25,607	$	—	$	26,163

Level 2 marketable securities are priced using quoted market prices for similar instruments or nonbinding market prices that are corroborated by observable market data. The Company uses inputs such as actual trade data, benchmark yields, broker/dealer quotes, and other similar data, which are obtained from quoted market prices, independent pricing vendors, or other sources, to determine the ultimate fair value of these assets and liabilities. The Company uses such pricing data as the primary input to make its assessments and determinations as to the ultimate valuation of its investment portfolio and has not made, during the periods presented, any material adjustments to such inputs.

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Marketable Securities (Notes)

9 Months Ended

Sep. 30, 2017

Marketable Securities [Abstract]

Marketable Securities

Marketable Securities

The following table summarizes the Company’s marketable securities as of September 30, 2017 and December 31, 2016 (in thousands):

September 30, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Corporate notes and bonds	$	41,793	$	1	$	(7	)	$	41,788
U.S. government and agency securities	13,982		2		—			13,984
Commercial paper	3,985		—		—			3,985
Total	$	59,760	$	3	$	(7	)	$	59,756
December 31, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Corporate notes and bonds	$	18,846	$	—	$	(25	)	$	18,821
U.S. government and agency securities	3,506		—		(3		)	3,503
Commercial paper	3,283		—		—			3,283
Total	$	25,635	$	—	$	(28	)	$	25,607

The following table summarizes the maturities of the Company’s marketable securities as of September 30, 2017 (in thousands):

	Amortized Cost		Estimated Fair Value
Due in one year or less	$	59,760	$	59,756
Due after one year through two years	—		—
Total	$	59,760	$	59,756

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Income Taxes

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company uses an estimated annual effective tax rate, which is based on expected annual income, statutory tax rates and tax planning opportunities available in the various jurisdictions in which the Company operates, to determine its quarterly provision for income taxes. Certain significant or unusual items are separately recognized in the quarter in which they occur and can be a source of variability in the effective tax rates from quarter to quarter.

As of September 30, 2017, the Company recorded a full valuation allowance against all of its net deferred tax assets due to the uncertainty surrounding the Company’s ability to utilize these assets in the future. Due to the Company's losses, it only records a tax provision or benefit related to uncertain tax positions and related interest and minimum tax payments or refunds. The Company recorded an income tax benefit of $9,000 for the three months ended September 30, 2017 and income tax expense of $14,000 for the three months ended September 30, 2016, and income tax expense of $68,000 and $45,000 for the nine months ended September 30, 2017 and 2016, respectively.

The Company is subject to taxation in the United States and in various state and foreign jurisdictions. The Company's federal and state returns since inception are subject to examination due to the carryover of net operating losses. As of September 30, 2017, the Company’s tax years from 2011 through 2012 are subject to examination by the United Kingdom tax authorities related to its legacy operations. The statute of limitations for the assessment and collection of income taxes related to other foreign tax returns varies by country. In the foreign countries where the Company has operations, these time periods generally range from three to five years after the year for which the tax return is due or the tax is assessed.

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Organization and Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles, or U.S. GAAP, and applicable regulations of the U.S. Securities and Exchange Commission, or the SEC, and should be read in conjunction with the audited financial statements included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2016 filed with the SEC on February 28, 2017. These unaudited condensed consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods presented. These adjustments are of a normal, recurring nature. Interim period operating results may not be indicative of the operating results for the full year or any future period.

The Company has experienced net losses and negative cash flows from operating activities since its inception and had an accumulated deficit of $402,584,000 as of September 30, 2017. The Company's ability to transition to profitable operations is dependent upon achieving a level of revenues adequate to support its cost structure through expanding its product offerings and consequently increasing its product revenues. As of September 30, 2017, the Company had available cash, cash equivalents, and marketable securities of $86,917,000 and working capital of $68,857,000 available to fund future operations. The Company has prepared cash flow forecasts which indicate, based on the Company's current cash resources available and working capital, that the Company will have sufficient resources to fund its operations for at least one year after the date the financial statements are issued.

Priniciples of Consolidation

Principles of Consolidation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

Segment Information

Segment Information

The Company currently operates in one reportable business segment, which encompasses the development, manufacturing, sales and support of instruments and molecular tests based on its proprietary eSensor® detection technology. Substantially all of the Company’s operations and assets are in the United States of America.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board, or FASB, or other standard setting bodies that the Company adopts as of the specified effective date.

In November 2016, the FASB issued Accounting Standards Update, or ASU, 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires amounts generally described as restricted cash and restricted cash equivalents to be included in the cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU 2016-08 is effective for fiscal years beginning after December 15, 2017 (including interim periods within those periods) using a retrospective transition method for each period presented. Early adoption is permitted. The Company will adopt ASU 2016-18 in the first quarter of 2018 and anticipates the impact of adoption will result in a beginning and ending cash balance increase of approximately $758,000. The Company does not anticipate a material impact in the cash flow resulting from fluctuations in the restricted cash balance.

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting. This guidance simplifies how several aspects of share-based payments are accounted for and presented in the financial statements and is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. The Company's adoption of this guidance in the first quarter of 2017 resulted in excess tax benefits for which a benefit could not be previously recognized of approximately $1,979,000. Upon adoption, the balance of the unrecognized excess tax benefits was reversed with the impact recorded to retained earnings, including a corresponding change to the valuation allowance. Due to the full valuation allowance on the Company's U.S. deferred tax assets, there was no impact to the unaudited condensed consolidated financial statements as a result of adoption. The Company continues to record stock-based compensation expense net of estimated forfeitures.

In February 2016, the FASB issued ASU 2016-02, Leases. This ASU outlines a comprehensive lease accounting model and supersedes the current lease guidance. The new guidance requires lessees to recognize lease liabilities and corresponding right-of-use assets for all leases with lease terms of greater than 12 months. It also changes the definition of a lease and expands the disclosure requirements of lease arrangements. The new guidance must be adopted using the modified retrospective approach and will be effective for the Company starting in the first quarter of 2019, with early adoption permitted. The Company believes that adoption will modify its analysis and disclosures of lease agreements as operating agreements are a significant portion of the Company's total lease commitments. The Company is in the process of determining the effects adoption of this guidance will have on its consolidated financial statements, as well as whether to adopt this guidance early.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, an updated standard on revenue recognition. ASU 2014-09 provides enhancements to the quality and consistency of how revenue is reported by companies while also improving comparability in the financial statements of companies reporting using International Financial Reporting Standards or U.S. GAAP. The main purpose of the new standard is for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which a company expects to be entitled in exchange for those goods or services. The new standard also will result in enhanced disclosures of revenue, provide guidance for transactions that were not previously addressed comprehensively, and improves guidance for multiple-element arrangements. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, which deferred the effective date of the new revenue standard from periods beginning after December 15, 2016 to December l5, 2017, with early adoption permitted but not earlier than the original effective date. Accordingly, the updated standard is effective for the Company in the first quarter of 2018. The Company performed a preliminary assessment of the impact of ASU 2014-09 on its consolidated financial statements, and considered all items outlined in the standard. In assessing the impact, the Company has outlined all revenue generating activities, mapped those activities to deliverables and traced those deliverables to the standard. The Company is now assessing what impact the change in standard will have on those deliverables. The Company will continue to evaluate the future impact and method of adoption of ASU 2014-09 and related amendments on its consolidated financial statements and related disclosures during the remainder of 2017. The Company believes the adoption of this guidance will modify the manner in which the Company analyzes its revenue generating contracts. The Company will adopt the new standard beginning January 2018.

Cash, Cash Equivalents and Marketable Securities

Cash, Cash Equivalents and Marketable Securities

Cash and cash equivalents consist of cash on deposit with banks, money market instruments and certificates of deposit with original maturities of three months or less at the date of purchase. Marketable securities consist of certificates of deposits that mature in greater than three months. Marketable securities are accounted for as "available-for-sale" with the carrying amounts reported in the balance sheets stated at cost, which approximates their fair market value, with unrealized gains and losses, if any, reported as a separate component of stockholders' equity and included in comprehensive loss.

Receivables

Receivables

Accounts receivable consist of amounts due to the Company for sales to customers and are recorded net of an allowance for doubtful accounts. The allowance for doubtful accounts is determined based on an assessment of the collectability of specific customer accounts, the aging of accounts receivable, and a reserve for unknown items based upon the Company’s historical experience.

Restricted Cash

Restricted Cash

Restricted cash represents amounts designated for uses other than current operations and included $758,000 as of September 30, 2017, held as security for the Company’s letter of credit with Banc of California.

Use of Estimates

Use of Estimates

The preparation of these unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and the notes thereto. The Company’s significant estimates included in the preparation of the financial statements are related to accounts receivable, inventories, property and equipment, intangible assets, employee-related compensation accruals, warranty liabilities, tax valuation accounts and stock-based compensation. Actual results could differ from those estimates.

Product Warranties

Product Warranties

The Company generally offers a one-year warranty for its instruments sold to customers and typically up to a 60 day warranty for consumables. Factors that affect the Company’s warranty reserves include the number of units sold, historical and anticipated rates of warranty repairs, and the cost per repair. The Company periodically assesses the adequacy of its warranty reserve and adjusts the amount as appropriate.

Intangible Assets

Intangible Assets

Intangible assets comprise licenses or sublicenses to technology covered by patents owned by third parties, and are amortized on a straight-line basis over the expected useful lives of these assets, which is generally 10 years. Amortization of licenses typically begins upon the Company obtaining access to the licensed technology and is recorded in cost of revenues for licenses supporting commercialized products. The amortization of licenses to technology supporting products in development is recorded in research and development expenses.

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets

The Company assesses the recoverability of long-lived assets, including intangible assets, by periodically evaluating the carrying value whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If impairment is indicated, the Company writes down the carrying value of the asset to its estimated fair value. This fair value is primarily determined based on estimated discounted future cash flows.

Inventories

Inventories

Inventories are stated at the lower of cost (first-in, first-out) or net realizable value and include direct labor, materials, and manufacturing overhead. The Company periodically reviews inventory for evidence of slow-moving or obsolete parts, and writes inventory down to net realizable value, as needed. This write-down is based on management’s review of inventories on hand, compared to estimated future usage and sales, shelf-life assumptions, and assumptions about the likelihood of obsolescence. If actual market conditions are less favorable than those projected by the Company, additional inventory write-downs may be required. Inventory impairment charges establish a new cost basis for inventory and charges are not reversed subsequently to income, even if circumstances later suggest that increased carrying amounts are recoverable.

Property, Plant and Equipment, net

Property and Equipment, net

Property, equipment and leasehold improvements are recorded at cost and depreciated using the straight-line method over the estimated useful lives of the assets, which are identified below. Repair and maintenance costs are expensed as incurred.

Machinery and laboratory equipment	3 - 5 years
Instruments	4 - 5 years
Office equipment	3 - 7 years
Leasehold improvements	over the shorter of the remaining life of the lease or the useful economic life of the asset

Income Taxes

Income Taxes

Current income tax expense is the amount of income taxes expected to be payable for the current year. A deferred income tax liability or asset is established for the expected future tax consequences resulting from the differences in financial reporting and tax bases of assets and liabilities. A valuation allowance is provided if it is more likely than not that some or all of the deferred tax assets will not be realized. A full valuation allowance has been recorded against the Company’s net deferred tax assets due to the uncertainty surrounding the Company’s ability to utilize these assets in the future. The Company provides for uncertain tax positions when such tax positions do not meet the recognition thresholds or measurement standards prescribed by the authoritative guidance on income taxes. Amounts for uncertain tax positions are adjusted in periods when new information becomes available or when positions are effectively settled. The Company recognizes accrued interest related to uncertain tax positions as a component of income tax expense.

A tax position that is more likely than not to be realized is measured at the largest amount of tax benefit that is greater than 50% likely of being realized upon settlement with the taxing authority that has full knowledge of all relevant information. Measurement of a tax position that meets the more-likely-than-not threshold considers the amounts and probabilities of the outcomes that could be realized upon settlement using the facts, circumstances and information available at the reporting date.

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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Compensation Related Costs [Abstract]

Schedule of stock option activity

The following table summarizes stock option activity during the nine months ended September 30, 2017:

	Number of Shares		Weighted Average Exercise Price
Outstanding at December 31, 2016	2,569,550		$	9.53
Granted	—		$	—
Exercised	(28,966	)	$	7.36
Cancelled	(14,427	)	$	10.04
Outstanding at September 30, 2017	2,526,157		$	9.56
Vested and expected to vest at September 30, 2017	2,500,450		$	9.52
Exercisable at September 30, 2017	2,167,970		$	9.18

Summary of restricted stock award and restricted stock units activity

The Company’s restricted stock award and restricted stock unit activity for the nine months ended September 30, 2017 was as follows:

	Restricted Stock Awards				Restricted Stock Units
	Number of Shares		Weighted Average Grant Date Fair Value		Number of Shares		Weighted Average Grant Date Fair Value
Unvested at December 31, 2016	156		$	11.19	1,766,123		$	7.18
Granted	—		$	—	1,164,250		$	10.90
Vested	(156	)	$	11.19	(614,457	)	$	6.80
Cancelled	—		$	—	(165,501	)	$	8.99
Unvested at September 30, 2017	—		$	—	2,150,415		$	9.16

Schedule of Market-Based Stock Units Activity

The Company’s market-based stock unit activity for the nine months ended September 30, 2017 was as follows:

	Market-Based Stock Units
	Number of Shares		Weighted Average Grant Date Fair Value
Unvested at December 31, 2016	150,871		$	11.10
Units granted	166,434		$	13.82
Vested	—		$	—
Cancelled	(12,762	)	$	11.90
Unvested at September 30, 2017	304,543		$	12.55

Market-Based Stock Units Valuation Assumptions

The fair value of these market-based stock units was estimated on the grant date using the Monte Carlo Simulation Valuation Model, which estimates the potential outcome of achieving the market condition based on simulated future stock prices, with the following assumptions for the nine months ended September 30, 2017:

	Nine Months Ended
	September 30,
	2017			2016
Expected volatility	54		%	49		%
Risk-free interest rate	1.50		%	0.90		%
Expected dividend	—		%	—		%
Weighted average fair value	$	13.82		$	4.94

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Net Loss per Common Share (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Antidilutive Securities Excluded from Computation of Earnings Per Share

The computations of diluted net loss per share for the three and nine month periods ended September 30, 2017 and 2016 did not include the effects of the following stock options and other equity awards which were outstanding as of the end of each period because the inclusion of these securities would have been anti-dilutive (in thousands):

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Options outstanding to purchase common stock	2,526	2,611	2,526	2,611
Other unvested equity awards	2,466	2,057	2,466	2,057
Total	4,992	4,668	4,992	4,668

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Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Summary of inventory on hand

Inventory on hand as of September 30, 2017 and December 31, 2016 comprised the following (in thousands):

	September 30, 2017		December 31, 2016
Raw materials	$	2,795	$	2,171
Work-in-process	2,709		1,488
Finished goods	1,605		2,974
Total inventories	$	7,109	$	6,633

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Property and Equipment, net (Tables)

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment, Net [Abstract]

Property and equipment, net

Property and equipment as of September 30, 2017 and December 31, 2016 comprised the following (in thousands):

	September 30, 2017			December 31, 2016
Property and equipment — at cost:
Machinery and laboratory equipment	$	12,607		$	10,145
Instruments	13,203			9,869
Office equipment	1,970			1,714
Leasehold improvements	10,497			10,100
Total property and equipment — at cost	38,277			31,828
Less: accumulated depreciation	(16,691		)	(13,560		)
Property and equipment, net	$	21,586		$	18,268

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Intangible Assets, net (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of intangible assets

Intangible assets as of September 30, 2017 and December 31, 2016 comprised the following (in thousands):

	September 30, 2017							December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Licensed intellectual property	$	4,750	$	(1,978	)	$	2,772	$	4,250	$	(1,580	)	$	2,670

Summary of estimated future amortization expense

Estimated future amortization expense for these licenses is as follows (in thousands):

Fiscal Years Ending	Future Amortization Expense
Remaining in 2017	$	148
2018	593
2019	593
2020	593
2021	593
Thereafter	252
Total	$	2,772

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Loan Payable Tables (Tables)

9 Months Ended

Sep. 30, 2017

Debt Instrument [Line Items]

Schedule of Long-term Debt Instruments [Table Text Block]

As of September 30, 2017 and December 31, 2016, long-term debt comprised the following (in thousands):

	September 30, 2017			December 31, 2016
Term Loans
Term Loan A - 6.9% principal	$	10,000		$	10,000
Term Loan B - 6.9% principal	10,000			10,000
Term Loan C - 7.4% principal	15,000			—
Final fee obligation	1,537			400
Repayment of principal	(6,060		)	—
Unamortized issuance costs	(1,011		)	(585		)
Total debt, net	29,466			19,815
Current portion of long-term debt	(19,548		)	(7,935		)
Long-term debt	$	9,918		$	11,880

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Leases (Tables)

9 Months Ended

Sep. 30, 2017

Leases [Abstract]

Schedule of future minimum lease payments

As of September 30, 2017, the future minimum lease payments required over the next five years under the Company's lease arrangements are as follows (in thousands):

Fiscal Years Ending	Future Minimum Lease Payments
Remaining in 2017	$	447
2018	1,868
2019	1,989
2020	1,997
2021	1,372
Thereafter	1,366
Total	$	9,039

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Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

The following table presents the financial instruments measured at fair value on a recurring basis and the valuation approach applied to each class of financial instruments as of September 30, 2017 and December 31, 2016 (in thousands):

	September 30, 2017
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Cash equivalents
Money market funds	$	9,129	$	—	$	—	$	9,129
Corporate notes and bonds	—		4,000		—		4,000
Marketable securities
Corporate notes and bonds	—		41,787		—		41,787
U.S. government and agency securities	—		13,984		—		13,984
Commercial paper	—		3,985		—		3,985
Total	$	9,129	$	63,756	$	—	$	72,885
	December 31, 2016
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Cash equivalents
Money market funds	$	556	$	—	$	—	$	556
Marketable securities
Corporate notes and bonds	—		18,821		—		18,821
U.S. government and agency securities	—		3,503		—		3,503
Commercial paper	—		3,283		—		3,283
Total	$	556	$	25,607	$	—	$	26,163

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Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2017

Marketable Securities [Abstract]

Available-for-sale Securities

The following table summarizes the Company’s marketable securities as of September 30, 2017 and December 31, 2016 (in thousands):

September 30, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Corporate notes and bonds	$	41,793	$	1	$	(7	)	$	41,788
U.S. government and agency securities	13,982		2		—			13,984
Commercial paper	3,985		—		—			3,985
Total	$	59,760	$	3	$	(7	)	$	59,756
December 31, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Corporate notes and bonds	$	18,846	$	—	$	(25	)	$	18,821
U.S. government and agency securities	3,506		—		(3		)	3,503
Commercial paper	3,283		—		—			3,283
Total	$	25,635	$	—	$	(28	)	$	25,607

Investments Classified by Contractual Maturity Date

The following table summarizes the maturities of the Company’s marketable securities as of September 30, 2017 (in thousands):

	Amortized Cost		Estimated Fair Value
Due in one year or less	$	59,760	$	59,756
Due after one year through two years	—		—
Total	$	59,760	$	59,756

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Organization and Basis of Presentation (Details)	9 Months Ended
	Sep. 30, 2017
Machinery and laboratory equipment | Minimum
Property, Plant and Equipment [Line Items]
Expected useful lives	3 years
Machinery and laboratory equipment | Maximum
Property, Plant and Equipment [Line Items]
Expected useful lives	5 years
Instruments | Minimum
Property, Plant and Equipment [Line Items]
Expected useful lives	4 years
Instruments | Maximum
Property, Plant and Equipment [Line Items]
Expected useful lives	5 years
Office equipment | Minimum
Property, Plant and Equipment [Line Items]
Expected useful lives	3 years
Office equipment | Maximum
Property, Plant and Equipment [Line Items]
Expected useful lives	7 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Expected useful lives	over the shorter of the remaining life of the lease or the useful economic life of the asset

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Organization and Basis of Presentation (Details Textual)	9 Months Ended
	Sep. 30, 2017 USD ($) Segment	Dec. 31, 2016 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Restricted cash	$ 758,000	$ 758,000
Number of operating segment | Segment	1
Working Capital	$ 68,857,000
Accumulated deficit	402,584,000	$ 355,270,000
Cash, Cash Equivalents, and Short-term Investments	86,917,000
Excess tax benefit, amount	$ 1,979,000
Sufficient capital to fund its operations	for at least one year
Products Warranty Period - Reagents	60 days
Product Warranty Period - Instruments	1 year
Finite Lived Intangible Asset Amortization Period	10 years

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Stock-Based Compensation Schedule of Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2016	Sep. 30, 2017
Compensation Related Costs [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term		5 years 1 month 11 days
Aggregate intrinsic value of options exercisable		$ 6,478
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value		$ 6,783
Weighted Average Remaining Contractual Life, Outstanding (in years)	6 years 8 months 27 days	5 years 5 months 2 days
Schedule of stock option activity
Number of Share options Outstanding, Beginning Balance		2,569,550
Number of Share options, Granted		0
Number of Share options, Exercised		(28,966)
Number of Share options, Cancelled		(14,427)
Number of Share options Outstanding, Ending Balance		2,526,157
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number		2,500,450
Number of Share options, Exercisable		2,167,970
Weighted average exercise price Outstanding, Beginning Balance		$ 9.53
Weighted average exercise price, Granted		0.00
Weighted average exercise price, Exercised		7.36
Weighted average exercise price, Cancelled		10.04
Weighted average exercise price Outstanding, Ending Balance		9.56
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price		9.52
Weighted average exercise price, Exercisable		$ 9.18

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Stock-Based Compensation (Details 2) - $ / shares	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Restricted Stock Awards [Member]
Summary of restricted stock award and restricted stock units activity
Non-vested, Number of shares, Beginning balance	156
Number of shares, Granted	0
Number of shares, Vested	(156)
Number of shares, Cancelled or expired	0
Non-vested, Number of shares, Ending balance	0
Non-vested, Weighted average Grant Date Fair Value, Beginning balance	$ 11.19
Weighted Average Grant Date Fair Value, Granted	0.00
Weighted average Grant Date Fair Value, Vested	11.19
Weighted average Grant Date Fair Value, Cancelled or expired	0.00
Non-vested, Weighted average Grant Date Fair Value, Ending balance	$ 0.00
Market Share Unit [Member]
Summary of restricted stock award and restricted stock units activity
Non-vested, Number of shares, Beginning balance	150,871
Number of shares, Granted	166,434
Number of shares, Cancelled or expired	(12,762)
Non-vested, Number of shares, Ending balance	304,543
Non-vested, Weighted average Grant Date Fair Value, Beginning balance	$ 11.10
Weighted Average Grant Date Fair Value, Granted	13.82	$ 4.94
Weighted average Grant Date Fair Value, Cancelled or expired	11.90
Non-vested, Weighted average Grant Date Fair Value, Ending balance	$ 12.55
Restricted Stock Units [Member]
Summary of restricted stock award and restricted stock units activity
Non-vested, Number of shares, Beginning balance	1,766,123
Number of shares, Granted	1,164,250
Number of shares, Vested	(614,457)
Number of shares, Cancelled or expired	(165,501)
Non-vested, Number of shares, Ending balance	2,150,415
Non-vested, Weighted average Grant Date Fair Value, Beginning balance	$ 7.18
Weighted Average Grant Date Fair Value, Granted	10.90
Weighted average Grant Date Fair Value, Vested	6.80
Weighted average Grant Date Fair Value, Cancelled or expired	8.99
Non-vested, Weighted average Grant Date Fair Value, Ending balance	$ 9.16

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Stock-Based Compensation - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2014	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Sep. 30, 2013
Share-based compensation (Textual) [Abstract]
Granted Stock option			0
Stock compensation expense			$ 8,386,000	$ 6,788,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number			2,526,157		2,569,550
Weighted average exercise price of stock option			$ 0.00
Remaining weighted average contractual term			5 years 1 month 11 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value			$ 6,478,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value			6,783,000
Restricted Stock Awards [Member]
Share-based compensation (Textual) [Abstract]
Total fair value of restricted stock vested			2,000	152,000
Stock compensation expense			$ 8,386,000	$ 6,788,000
Number of shares, Granted			0
Weighted Average Grant Date Fair Value, Granted			$ 0.00
Market Share Unit [Member]
Share-based compensation (Textual) [Abstract]
Shares received as percent of target number of units granted	200.00%
Unrecognized compensation cost			$ 1,502,000
Weighted average-period, cost is expected to be recognized			1 year 7 months 3 days
Number of shares, Granted			166,434
Weighted Average Grant Date Fair Value, Granted			$ 13.82	$ 4.94
Expected volatility			54.00%	49.00%
Risk-free interest rate			1.50%	0.90%
Expected dividend			0.00%	0.00%
Restricted Stock Units [Member]
Share-based compensation (Textual) [Abstract]
Total fair value of restricted stock vested			$ 4,181,000	$ 4,526,000
Unrecognized compensation cost			$ 13,142,000
Weighted average-period, cost is expected to be recognized			2 years 9 months 4 days
Number of shares, Granted			1,164,250
Weighted Average Grant Date Fair Value, Granted			$ 10.90
Performance Shares [Member]
Share-based compensation (Textual) [Abstract]
Unrecognized compensation cost			$ 133,000
Number of shares, Granted		43,200
Weighted Average Grant Date Fair Value, Granted		$ 12.30
2010 Plan [Member] | Minimum
Share-based compensation (Textual) [Abstract]
Options vesting period			1 year
2010 Plan [Member] | Maximum
Share-based compensation (Textual) [Abstract]
Options vesting period			4 years
2010 Plan [Member] | Options [Member]
Share-based compensation (Textual) [Abstract]
Expiration period			10 years
2013 Employee Stock Purchase Plan [Member]
Employee Stock Purchase Plan [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized						650,000
Common stock reserved for future issuance			207,183
Purchase price as a percent of the fair market value of the common stock			85.00%
Share-Based Compensation Arrangement By Share-Based Payment Award, Offering Period			6 months
Maximum offering period			27 months
Maximum employee investment in ESPP as a percentage of gross compensation			10.00%
Maximum shares of common stock that can be puchased by each employee			1,500

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Net Loss per Common Share (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Computations of diluted net loss per share
Antidilutive securities excluded from calculation	4,992	4,668
Options [Member]
Computations of diluted net loss per share
Antidilutive securities excluded from calculation	2,526	2,611
Unvested restricted stock [Member]
Computations of diluted net loss per share
Antidilutive securities excluded from calculation	2,466	2,057

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Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Summary of inventory on hand
Raw materials	$ 2,795	$ 2,171
Work-in-process	2,709	1,488
Finished goods	1,605	2,974
Total	$ 7,109	$ 6,633

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Property and Equipment, net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Property and equipment-at cost:
Total property and equipment-at cost	$ 38,277		$ 38,277		$ 31,828
Less accumulated depreciation	(16,691)		(16,691)		(13,560)
Property and equipment, net	21,586		21,586		18,268
Depreciation expense	1,206	$ 854	3,413	$ 2,458
Machinery and laboratory equipment
Property and equipment-at cost:
Total property and equipment-at cost	12,607		12,607		10,145
Instruments
Property and equipment-at cost:
Total property and equipment-at cost	13,203		13,203		9,869
Office equipment
Property and equipment-at cost:
Total property and equipment-at cost	1,970		1,970		1,714
Leasehold improvements
Property and equipment-at cost:
Total property and equipment-at cost	$ 10,497		$ 10,497		$ 10,100

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Intangible Assets, net - Gross and Net Carrying Values (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Gross	$ 4,750	$ 4,250
Finite-Lived Intangible Assets, Accumulated Amortization	(1,978)	(1,580)
Finite-Lived Intangible Assets, Net	$ 2,772	$ 2,670

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Intangible Assets, net - Future Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Remaining in 2017	$ 148
2018	593
2019	593
2020	593
2021	593
Thereafter	252
Finite-Lived Intangible Assets, Net	$ 2,772	$ 2,670

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Intangible Assets, net - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived Intangible Assets Acquired			$ 500,000
Amortization of Intangible Assets	$ 151,000	$ 94,000	$ 398,000	$ 281,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			4 years 8 months 6 days

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Loan Payable Term Loans (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Loans Payable	$ 35,000,000	$ 20,000,000
Final fee obligation	1,537,000	400,000
Repayment of principal	(6,060,000)	0
Unamortized issuance costs	(1,011,000)	(585,000)
Total debt, net	29,466,000	19,815,000
Current portion of long-term debt	(19,548,000)	(7,935,000)
Long-term debt	9,918,000	11,880,000
Term Loan A - 6.9% principal
Debt Instrument [Line Items]
Loans Payable	$ 10,000,000	$ 10,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.90%	6.90%
Term Loan B - 6.9% principal
Debt Instrument [Line Items]
Loans Payable	$ 10,000,000	$ 10,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.90%	6.90%
Term Loan C - 7.4% principal
Debt Instrument [Line Items]
Loans Payable	$ 15,000,000	$ 0
Debt Instrument, Interest Rate, Stated Percentage	7.40%	0.00%
Term Loans [Member]
Debt Instrument [Line Items]
Loans Payable	$ 35,000,000
Debt Instrument, Interest Rate Terms	a) the greater of 1.00% or the 3-year treasury rate in effect at the time of funding, plus (b) an applicable margin between 4.95% and 5.90% per annum.
Debt Interest only Period End	Jun. 15, 2017
Debt Instrument, Maturity Date	Jan. 12, 2019

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Loan Payable Revolving Credit Facility (Details) - Revolving Credit Facility [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000
Line of Credit Facility, Interest Rate Description	the greater of 1.25% per annum or a base rate as determined by a three-month LIBOR-based formula, plus (b) an applicable margin between 2.95% and 3.95%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.75%
Minimum
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.95%
Maximum
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	3.95%

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Loan Payable - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Debt Disclosure [Abstract]
Unamortized issuance costs	$ (1,011,000)		$ (1,011,000)		$ (585,000)
Amortization of deferred debt issuance costs	398,000	$ 108,000	891,000	$ 277,000
Letters of Credit Outstanding, Amount	$ 758,000		$ 758,000

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Leases (Details) $ in Thousands	Sep. 30, 2017 USD ($)
Schedule of future minimum lease payments
Remaining in 2017	$ 447
2015	1,868
2016	1,989
2017	1,997
2018	1,372
Thereafter	1,366
Total future minimum payments	$ 9,039

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Leases (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Leases [Abstract]
Rent and operating expenses	$ 398,777	$ 476,000	$ 1,211,264	$ 1,460,000
Operating lease, deferred expense	$ 3,780,528		$ 3,780,528		$ 4,097,000

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Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	$ 59,756	$ 25,607
Total financial instruments at fair value	72,885	26,163
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	9,129	556
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	63,756	25,607
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	0	0
Money market funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	9,129	556
Money market funds | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Money market funds | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Corporate notes and bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0
Marketable securities, fair value	0	0
Corporate notes and bonds | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	4,000
Marketable securities, fair value	41,787	18,821
Corporate notes and bonds | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0
Marketable securities, fair value	0	0
U.S. government and agency securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	0	0
U.S. government and agency securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	13,984	3,503
U.S. government and agency securities | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	0	0
Commercial paper | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	0	0
Commercial paper | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	3,985	3,283
Commercial paper | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	$ 0	$ 0

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Marketable Securities - Gross unrealized gains/losses on marketable securities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 59,760	$ 25,635
Gross Unrealized Gains	3	0
Gross Unrealized Losses	(7)	(28)
Marketable securities, fair value	59,756	25,607
Corporate notes and bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	41,793	18,846
Gross Unrealized Gains	1	0
Gross Unrealized Losses	(7)	(25)
Marketable securities, fair value	41,788	18,821
U.S. government and agency securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	13,982	3,506
Gross Unrealized Gains	2	0
Gross Unrealized Losses	0	(3)
Marketable securities, fair value	13,984	3,503
Commercial paper
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,985	3,283
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Marketable securities, fair value	$ 3,985	$ 3,283

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Marketable Securities - Contractual maturities of marketable securities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 59,760	$ 25,635
Marketable securities, fair value	59,756	$ 25,607
Due in one year or less [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	59,760
Marketable securities, fair value	59,756
Due after one year through two years [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	0
Marketable securities, fair value	$ 0

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Income Taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (9,000)	$ 14,000	$ 68,000	$ 45,000