10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

☒ 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: 001-37874

Everbridge, Inc.

(Exact Name of Registrant as Specified in its Charter)

Delaware	26-2919312
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
25 Corporate Drive, Suite 400 Burlington, Massachusetts	01803
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (818) 230-9700

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  ☒    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  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a 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.

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒  (Do not check if a small reporting company)	Small reporting company	☐
Emerging growth company	☒

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. ☒

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

As of November 1, 2017, the registrant had 28,254,691 shares of common stock issued and outstanding.

EVERBRIDGE, INC. AND SUBSIDIARIES

		Page
PART I.	FINANCIAL INFORMATION	3
Item 1.	Condensed Consolidated Financial Statements (unaudited)	3
	Condensed Consolidated Balance Sheets as of September 30, 2017 and December 31, 2016	3
	Condensed Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2017 and 2016	4
	Condensed Consolidated Statements of Comprehensive Loss for the Three and Nine Months Ended September 30, 2017 and 2016	5
	Condensed Consolidated Statements of Stockholders’ Equity for the Nine Months Ended September 30, 2017	6
	Condensed Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2017 and 2016	7
	Notes to the Condensed Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	24
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	37
Item 4.	Controls and Procedures	38
PART II.	OTHER INFORMATION	39
Item 1.	Legal Proceedings	39
Item 1A.	Risk Factors	39
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	39
Item 3.	Defaults Upon Senior Securities	39
Item 4.	Mine Safety Disclosures	39
Item 5.	Other Information	39
Item 6.	Exhibits	41
Signatures		42

2

PART I—FINANCIAL INFORMATION

Item 1. Condensed Consolidated Financial Statements (Unaudited).

EVERBRIDGE, INC. AND SUBSIDIARIES

Condensed Consolidated Balance Sheets

(in thousands, except share data)

(unaudited)

	As of September 30, 2017			As of December 31, 2016
Assets
Current assets:
Cash and cash equivalents	$	23,628		$	60,765
Restricted cash		297			—
Short-term investments		24,029			—
Accounts receivable, net		22,273			17,812
Prepaid expenses		3,564			1,770
Other current assets		2,780			2,536
Total current assets		76,571			82,883
Property and equipment, net		2,844			2,923
Capitalized software development costs, net		9,672			8,792
Goodwill		31,343			9,676
Intangible assets, net		9,499			3,940
Other assets		190			108
Total assets	$	130,119		$	108,322
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	3,223		$	2,434
Accrued payroll and employee related liabilities		9,778			7,456
Accrued expenses		2,003			1,957
Deferred revenue		63,040			51,388
Contingent liabilities		1,705			—
Other current liabilities		614			548
Total current liabilities		80,363			63,783
Long-term liabilities:
Deferred revenue, noncurrent		1,455			1,246
Deferred tax liabilities		594			494
Other long term liabilities		533			447
Total liabilities		82,945			65,970
Commitments and contingencies
Stockholders' equity:
Preferred stock, par value $0.001, 10,000,000 shares authorized, no shares issued or outstanding as of   September 30, 2017 and December 31, 2016, respectively		—			—
Common stock, $0.001 par value, 100,000,000 shares authorized, 28,203,369 and 27,150,674    shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively		28			27
Additional paid-in capital		150,614			132,246
Accumulated deficit		(103,488	)		(89,618	)
Accumulated other comprehensive income (loss)		20			(303	)
Total stockholders’ equity		47,174			42,352
Total liabilities and stockholders’ equity	$	130,119		$	108,322

See accompanying notes to condensed consolidated financial statements.

3

EVERBRIDGE, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Operations

(in thousands, except share and per share data)

(unaudited)

	Three Months Ended						Nine Months Ended
	September 30, 2017			September 30, 2016			September 30, 2017			September 30, 2016
Revenue	$	27,312		$	19,932		$	75,177		$	55,566
Cost of revenue		8,076			6,173			22,969			17,324
Gross profit		19,236			13,759			52,208			38,242
Operating expenses:
Sales and marketing		11,626			8,605			33,589			25,659
Research and development		5,626			3,917			16,082			10,560
General and administrative		6,375			3,666			16,640			10,252
Total operating expenses		23,627			16,188			66,311			46,471
Operating loss		(4,391	)		(2,429	)		(14,103	)		(8,229	)
Other income (expense), net:
Interest and investment income		106			—			234			—
Interest expense		(2	)		(195	)		(5	)		(506	)
Other income (expense), net		(23	)		30			(61	)		2
Total other income (expense), net		81			(165	)		168			(504	)
Loss before income taxes		(4,310	)		(2,594	)		(13,935	)		(8,733	)
(Provision for) benefit from income taxes		79			(35	)		65			75
Net loss	$	(4,231	)	$	(2,629	)	$	(13,870	)	$	(8,658	)
Net loss per share attributable to common stockholders:
Basic	$	(0.15	)	$	(0.18	)	$	(0.50	)	$	(0.66	)
Diluted	$	(0.15	)	$	(0.18	)	$	(0.50	)	$	(0.66	)
Weighted-average common shares outstanding:
Basic		28,100,172			14,772,006			27,719,519			13,124,480
Diluted		28,100,172			14,772,006			27,719,519			13,124,480

See accompanying notes to condensed consolidated financial statements.

4

EVERBRIDGE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(in thousands)

(unaudited)

	Three Months Ended						Nine Months Ended
	September 30, 2017			September 30, 2016			September 30, 2017			September 30, 2016
Net loss	$	(4,231	)	$	(2,629	)	$	(13,870	)	$	(8,658	)
Other comprehensive income (loss):
Foreign currency translation adjustment, net of taxes		197			66			323			(300	)
Total comprehensive loss	$	(4,034	)	$	(2,563	)	$	(13,547	)	$	(8,958	)

See accompanying notes to condensed consolidated financial statements.

5

EVERBRIDGE, INC. AND SUBSIDIARIES

Consolidated Statements of Stockholders’ Equity

(in thousands)

(unaudited)

	Common stock				Additional paid-in		Accumulated			Accumulated— other comprehensive
	Shares		Par value		capital		deficit			income (loss)			Total
Balance at December 31, 2016		27,150,674	$	27	$	132,246	$	(89,618	)	$	(303	)	$	42,352
Stock-based compensation		—		—		4,872		—			—			4,872
Issuance of common stock in follow-on    offering, net		553,825		1		9,869		—			—			9,870
Exercise of stock options		370,084		—		2,087		—			—			2,087
Issuance of shares under employee    stock purchase plan		128,786		—		1,540		—			—			1,540
Other comprehensive income		—		—		—		—			323			323
Net loss		—		—		—		(13,870	)		—			(13,870	)
Balance at September 30, 2017		28,203,369	$	28	$	150,614	$	(103,488	)	$	20		$	47,174

See accompanying notes to condensed consolidated financial statements.

6

EVERBRIDGE, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Cash Flows

(in thousands)

(unaudited)

	Nine Months Ended September 30,
	2017			2016
Cash flows from operating activities:
Net loss	$	(13,870	)	$	(8,658	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization		7,646			5,675
Loss on disposal of assets		15			74
Deferred income taxes		62			(224	)
Non-cash interest expense on line of credit and term loan		—			67
Non-cash investment income		(74	)		—
Provision for doubtful accounts and sales reserve		588			95
Stock-based compensation		4,838			2,127
Increase (decrease) in operating assets and liabilities:
Accounts receivable		(3,591	)		(391	)
Prepaid expenses		(1,552	)		(1,188	)
Other assets		(980	)		(1,743	)
Accounts payable		820			251
Accrued payroll and employee related liabilities		2,263			1,558
Accrued expenses		(54	)		305
Deferred revenue		7,801			8,605
Other liabilities		467			(18	)
Net cash provided by operating activities		4,379			6,535
Cash flows from investing activities:
Capital expenditures		(1,337	)		(739	)
Proceeds from sale leaseback transaction		794			—
Payments for acquisition of business, net of acquired cash		(21,235	)		—
Change in restricted cash		(294	)		—
Purchase of short-term investments		(29,955	)		—
Maturities of short-term investments		6,000			—
Additions to capitalized software development costs		(4,586	)		(4,294	)
Net cash used in investing activities		(50,613	)		(5,033	)
Cash flows from financing activities:
Proceeds from line of credit		—			9,500
Payments on line of credit		—			(19,500	)
Payment on term loan		—			(5,000	)
Payments of issuance costs relating to the line of credit and term loan		—			(19	)
Principal payments on capital leases		—			(58	)
Proceeds from public offering, net of underwriters discount and commissions		10,444			69,750
Payments of public offering costs		(872	)		(1,372	)
Payments of debt issuance costs		(40	)		—
Payment of contingent consideration		(3,750	)		—
Payments on notes payable		—			(2,018	)
Proceeds from employee stock purchase plan		1,540			—
Proceeds from option exercises		2,087			748
Proceeds from exercise of warrants		—			25
Net cash provided by financing activities		9,409			52,056
Effect of exchange rates on cash and cash equivalents		(312	)		160
Net (decrease) increase in cash and cash equivalents		(37,137	)		53,718
Cash and cash equivalents—beginning of period		60,765			8,578
Cash and cash equivalents—end of period	$	23,628		$	62,296
Supplemental disclosures of cash flow information:
Cash paid during the year for:
Interest	$	—		$	488
Taxes, net of refunds received		25			—
Supplemental disclosure of non-cash activities:
Capitalized assets included in accounts payable and accrued expenses		24			132
Deferred offering costs in accounts payable and accrued expenses		—			885
Debt issuance costs included in accounts payable and accrued expenses		100			—
Stock-based compensation capitalized for software development		34			38

See accompanying notes to condensed consolidated financial statements.

7

Everbridge, Inc.

Notes to the Condensed Consolidated Financial Statements

(Unaudited)

(1) Business and Nature of Operations

Everbridge, Inc., a Delaware corporation (together with its wholly-owned subsidiaries, referred to as “Everbridge” or the “Company”), is a global software company that provides critical event management and enterprise safety applications that enable customers to automate and accelerate the process of keeping people safe and businesses running during critical events. The Company’s SaaS-based platform enables the Company’s customers to quickly and reliably deliver messaging to a large group of people during critical situations. The Company’s enterprise applications, such as Mass Notification, Incident Management, IT Alerting, Safety Connection, Community Engagement, CareConverge, Crisis Commander and Visual Command Center, automate numerous critical event management and enterprise safety processes. The Company generates revenue primarily from subscription fees to the Company’s enterprise applications. The Company has operations in the United States, Sweden, the United Kingdom and China.

Initial and Follow-On Public Offering

On September 21, 2016, the Company completed an initial public offering (“IPO”) in which the Company sold 6,250,000 shares of its common stock at the public offering price of $12.00 per share. The Company received net proceeds of $66.1 million, after deducting underwriting discounts and commissions and offering expenses paid and payable by the Company, from sales of its shares in the IPO.   

In April 2017, the Company completed a follow-on public offering in which the Company sold 553,825 shares of its common stock, which included 26,825 shares sold pursuant to the exercise by the underwriters of an option to purchase additional shares, at a public offering price of $19.85 per share. In addition, 3,162,164 shares of the Company’s common stock were sold by selling stockholders of the Company, which included 73,000 shares sold pursuant to the exercise of employee stock options by certain selling stockholders. The Company received net proceeds of $9.9 million, after deducting underwriting discounts and commissions and offering expenses paid by the Company. The Company did not receive any proceeds from the sales by the selling stockholders.

(2) Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

The condensed consolidated balance sheet as of December 31, 2016, included herein, was derived from the audited financial statements as of that date, but does not include all disclosures including certain notes required by U.S. GAAP on an annual reporting basis.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year 2017 or any future period.

Principles of Consolidation

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

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amount of revenues and expenses during the reporting period. Actual results could differ from those estimates.

8

Assets and liabilities which are subject to judgment and use of estimates include allowances for doubtful accounts, the fair value of assets acquired and liabilities assumed in business combinations, the recoverability of goodwill and long-lived assets, valuation allowances with respect to deferred tax assets, useful lives associated with property and equipment and intangible assets, contingencies, and the valuation and assumptions underlying stock-based compensation. On an ongoing basis, the Company evaluates its estimates compared to historical experience and trends, which form the basis for making judgments about the carrying value of assets and liabilities. In addition, the Company engaged valuation specialists to assist with management’s determination of the valuation of its fair values of assets acquired and liabilities assumed in business combinations.

Concentrations of Credit and Business Risk

Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash and cash equivalents and accounts receivable.

The Company maintains cash balances at several banks. Accounts located in the United States are insured by the Federal Deposit Insurance Corporation, or FDIC, up to $250,000. From time to time, balances may exceed amounts insured by the FDIC. The Company has not experienced any losses in such amounts.

The Company’s accounts receivable are generally unsecured and are derived from revenue earned from customers located in the United States, Sweden and the United Kingdom and are generally denominated in U.S. dollars, Swedish kronor or British pounds. Each reporting period, the Company reevaluates each customer’s ability to satisfy credit obligations and maintains an allowance for doubtful accounts based on the evaluations. No single customer comprised more than 10% of the Company’s total revenue or accounts receivable for the three or nine months ended September 30, 2017 and 2016.  

Cash and Cash Equivalents

The Company considers all highly liquid instruments with original maturities of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents are recorded at cost, which approximates fair value. As of September 30, 2017, $19.5 million of the Company’s cash equivalents were invested in money market funds and U.S. government securities.

Short-Term Investments

Short-term investments consist of highly liquid investments, primarily commercial paper, U.S. Treasury and U.S. agency securities, with maturities over three months from the date of purchase. Debt securities, money market funds and U.S. agency bonds that the Company has the ability and positive intent to hold to maturity are carried at amortized cost, which approximates fair value. Short-term investments of $24.0 million and none at September 30, 2017 and December 31, 2016, respectively, were classified as held-to-maturity and primarily comprised of U.S. treasury and U.S. agency securities. All held-to-maturity securities at September 30, 2017 have maturity dates within one year.

Significant Accounting Policies

There have been no changes to the Company’s significant accounting policies described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

Recently Issued Accounting Guidance Not Yet Adopted

In January 2017, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or (“ASU”), ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This guidance eliminates Step 2 from the goodwill impairment test, instead requiring an entity to recognize a goodwill impairment charge for the amount by which the goodwill carrying amount exceeds the reporting unit’s fair value. This guidance is effective for interim and annual goodwill impairment tests in fiscal years beginning after December 15, 2019, and early adoption is permitted. This guidance must be applied on a prospective basis. The Company expects to adopt this guidance for interim and annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of this guidance to have a material impact on its financial position, results of operations or cash flows.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. This guidance narrows the definition of a business. This standard provides guidance to assist entities with evaluating when a set of transferred assets and activities is a business. This guidance is effective for interim and annual reporting periods beginning after December 15, 2017, and early adoption is permitted. This guidance must be applied prospectively to transactions occurring within the period of adoption. The Company expects to adopt this guidance effective January 1, 2018. The Company does not expect the adoption of this guidance to have a material impact on its financial position, results of operations or cash flows.

9

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. This guidance requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. As a result, restricted cash will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The new guidance is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, and the new guidance is to be applied retrospectively. The Company does not expect the adoption of this guidance to have a material impact on its cash flows.

In September 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This guidance clarifies the presentation requirements of eight specific issues within the statement of cash flows. The new guidance is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. The adoption of this guidance is not expected to have a significant impact on the Company’s financial statements, as the Company's treatment of the relevant affected items within its consolidated statement of cash flows is consistent with the requirements of this guidance.

In February 2016, the FASB issued ASU 2016-02, Leases, to require lessees to recognize most leases on the balance sheet, while recognition on the statement of operations will remain similar to current lease accounting. The ASU also eliminates real estate-specific provisions and modifies certain aspects of lessor accounting. The ASU is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted. Adoption of the ASU is modified retrospective. We are still in the process of evaluating the ASU but currently plan to adopt the ASU on January 1, 2019

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which amends the existing accounting standards for revenue recognition. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which delays the effective date of ASU 2014-09 by one year. The FASB also agreed to allow entities to choose to adopt the standard as of the original effective date. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies the implementation guidance on principal versus agent considerations. The guidance includes indicators to assist an entity in determining whether it controls a specified good or service before it is transferred to the customers. The new revenue recognition standard will be effective for the Company effective January 1, 2018. The new standard permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the modified retrospective method).

The Company currently anticipates adopting the standard using the modified retrospective method.

The Company is continuing to assess the impact of adopting ASU 2014-09 on its financial position, results of operations and related disclosures and has not yet determined whether the effect of the revenue portion will be material. Additionally, as the Company continues to assess the new standard along with industry trends and additional interpretive guidance, the Company may adjust its implementation plan accordingly.

The Company believes that the new standard will impact the following policies and disclosures:

• allocation of subscription and support revenue across different platforms and to professional services revenue;

• required disclosures including information about the transaction price and when the Company expects to recognize revenue; and

• accounting for deferred sales commissions including costs that qualify for deferral and the amortization period.

The sales commission accounting under the new standard is significantly different than the Company's current commission capitalization policy. The new standard will result in additional types of costs being capitalized. Additionally, all amounts capitalized are expected to be amortized over a period that is longer than the Company's current policy of amortizing the deferred amounts over the specific revenue contract terms. While the Company has not yet finalized its assessment of the impact will have on its financial position and results of operations, the Company believes it will be material.

The Company does not expect the adoption of ASU 2014-09 to have any impact on its operating cash flows.

10

(3) Accounts Receivable, Net

Accounts receivable, net is as follows (in thousands):

	As of			As of
	September 30, 2017			December 31, 2016
Accounts receivable	$	23,192		$	18,231
Allowance for doubtful accounts and sales reserve		(919	)		(419	)
Net accounts receivable	$	22,273		$	17,812

Bad debt expense and sales credits reserve were $0.2 million and $0.6 million for the three and nine months ended September 30, 2017, respectively, and $0.1 million and $0.1 million for the three and nine months ended September 30, 2016, respectively.  

The following table summarizes the changes in the allowance for doubtful accounts (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Balance, beginning of period	$	(610	)	$	(377	)	$	(374	)	$	(336	)
Additions		(195	)		(8	)		(484	)		(95	)
Write-offs		11			33			64			79
Balance, end of period	$	(794	)	$	(352	)	$	(794	)	$	(352	)

The following table summarizes the changes in the sales reserve (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Balance, beginning of period	$	(116	)	$	(45	)	$	(45	)	$	(45	)
Additions		(24	)		—			(104	)		—
Write-offs		15			—			24			—
Balance, end of period	$	(125	)	$	(45	)	$	(125	)	$	(45	)

(4) Property and Equipment

Property and equipment consisted of the following (in thousands):

	Useful life in years		As of  September 30, 2017			As of  December 31, 2016
Furniture and equipment		5	$	1,794		$	928
System hardware		5		1,623			3,320
Office computers		3		2,285			1,777
Computer and system software		3		1,186			1,478
				6,888			7,503
Less accumulated depreciation and amortization				(4,044	)		(4,580	)
Property and equipment, net			$	2,844		$	2,923

Depreciation and amortization expense for property and equipment was $0.4 million and $1.5 million for the three and nine months ended September 30, 2017, respectively, and $0.4 million and $1.2 million for the three and nine months ended September 30, 2016, respectively. 

11

(5) Capitalized Software Development Costs

Capitalized software development costs consisted of the following (in thousands):

				As of  September 30, 2017
	Gross carrying amount		Amortization period	Accumulated amortization			Net carrying amount
Capitalized software development costs	$	35,278	3 years	$	(25,606	)	$	9,672
Total capitalized software development costs	$	35,278		$	(25,606	)	$	9,672

				As of December 31, 2016
	Gross carrying amount		Amortization period	Accumulated amortization			Net carrying amount
Capitalized software development costs	$	30,658	3 years	$	(21,866	)	$	8,792
Total capitalized software development costs	$	30,658		$	(21,866	)	$	8,792

The Company capitalized software development costs of $4.6 million and $5.5 million for the nine months ended September 30, 2017 and the year ended December 31, 2016, respectively.

Amortization expense for capitalized software development costs was $1.2 million and $3.7 million for the three and nine months ended September 30, 2017, respectively, and $1.3 million and $3.6 million for the three and nine months ended September 30, 2016, respectively. Amortization of capitalized software development costs is classified within cost of revenue in the consolidated statements of operations.

The expected amortization of capitalized software development costs, as of September 30, 2017, for each of the following years is as follows (in thousands):

	Amounts
2017 (for the remaining three months)	$	1,475
2018		4,384
2019		3,127
2020		686
	$	9,672

(6) Fair Value Measurements

The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable, capital leases and accrued liabilities approximate fair value because of the short maturity of these items.

Certain assets, including long-lived assets, goodwill and intangible assets are also subject to measurement at fair value on a non-recurring basis if they are deemed to be impaired as a result of an impairment review. For the nine months ended September 30, 2017 and year ended December 31, 2016, no impairments were identified.

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The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis at September 30, 2017 and December 31, 2016 by level within the fair value hierarchy. Financial assets and financial liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement (in thousands):

	As of  September 30, 2017
	Quoted		Significant
	Prices in		Other		Significant
	Active		Observable		Unobservable
	Markets		Inputs		Inputs		Total Fair
	(Level 1)		(Level 2)		(Level 3)		Value
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	9,957		—		—	$	9,957
U.S. treasury securities		—		2,498				2,498
U.S. government and agency securities		—		6,999		—		6,999
Short-term investments
U.S. treasury securities		—		7,289		—		7,289
U.S. government and agency securities		—		16,740		—		16,740
Total financial assets	$	9,957	$	33,526	$	—	$	43,483
Liabilities:
Contingent consideration		—		—	$	1,705	$	1,705
Total financial liabilities	$	—	$	—	$	1,705	$	1,705
	As of  December 31, 2016
	Quoted		Significant
	Prices in		Other		Significant
	Active		Observable		Unobservable
	Markets		Inputs		Inputs		Total Fair
	(Level 1)		(Level 2)		(Level 3)		Value
	(in thousands)
Assets:
Cash equivalents
Money market funds	$	57,032		—		—	$	57,032
Total financial assets	$	57,032	$	—	$	—	$	57,032
Liabilities:
Contingent consideration		—		—	$	388	$	388
Total financial liabilities	$	—	$	—	$	388	$	388

The Company classifies and discloses fair value measurements in one of the following three categories of fair value hierarchy:

Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets and liabilities.

Level 2 - Quoted prices in markets that are not active or financial instruments for which all significant inputs are observable, either directly or indirectly.

Level 3 - Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

The Company’s assets that are measured by management at fair value on a recurring basis are generally classified within Level 1 or Level 2 of the fair value hierarchy.  The Company did not have any transfers into and out of Level 1 or Level 2 during the nine months ended September 30, 2017. No assets or investments were classified as Level 3 as of September 30, 2017. The Company did not have any short-term investments as of December 31, 2016.

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The Company considers all highly liquid investments purchased with a remaining maturity of three months or less to be cash equivalents. The fair value of the Company’s investments in certain money market funds is their face value and such instruments are classified as Level 1 and are included in cash and cash equivalents on the consolidated balance sheets. At September 30, 2017 the Company’s Level 2 securities were priced by pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available for these securities, use other observable inputs like market transactions involving identical or comparable securities.

The following table summarizes the changes in Level 3 financial instruments (in thousands).

	Amount
Fair Value at December 31, 2016	$	388
Foreign currency translation		47
Contingent consideration from IDV acquisition		5,020
Payments made during the year		(3,750	)
Balance at September 30, 2017	$	1,705

At December 31, 2016, the Company recorded the contingent consideration from the Crisis Commander acquisition under long-term other liabilities.

(7) Goodwill and Intangible Assets

Goodwill was $31.3 million and $9.7 million as of September 30, 2017 and December 31, 2016, respectively. There were no impairments recorded against goodwill during the nine months ended September 30, 2017 and for the year ended December 31, 2016. The following table displays the changes in the gross carrying amount of goodwill (in thousands):

	Amount
Balance at December 31, 2016	$	9,676
Foreign currency translation		471
IDV acquisition		21,196
Balance at September 30, 2017	$	31,343

Intangible assets consisted of the following (in thousands):

				As of  September 30, 2017
	Gross carrying amount		Weighted average life (years)	Accumulated amortization			Net carrying amount
Amortizable intangible assets:
Developed technology	$	4,065	3.1	$	(1,724	)	$	2,341
Trade names and patents		2,495	5.1		(584	)		1,911
Customer relationships		8,537	5.0		(3,450	)		5,087
Non-compete arrangement		240	2.0		(80	)		160
Total intangible assets	$	15,337		$	(5,838	)	$	9,499

				As of December 31, 2016
	Gross carrying amount		Weighted average life (years)	Accumulated amortization			Net carrying amount
Amortizable intangible assets:
Developed technology	$	1,490	3.60	$	(878	)	$	612
Trade names and patents		883	6.08		(254	)		629
Customer relationships		4,779	5.00		(2,080	)		2,699
Total intangible assets	$	7,152		$	(3,212	)	$	3,940

Amortization expense for intangible assets was $0.9 million and $2.4 million for the three and nine months ended September 30, 2017, respectively and $0.3 million and $0.9 million for the three and nine months ended September 30, 2016, respectively.  

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The expected amortization of the intangible assets, as of September 30, 2017, for each of the next five years and thereafter is as follows (in thousands):

	Amounts
2017 (for the remaining three months)	$	932
2018		3,269
2019		2,582
2020		1,350
2021		1,234
2022 and thereafter		132
	$	9,499

(8) Business Combinations

The Company accounted for the IDV Solutions LLC, or IDV and Crisis Commander acquisitions using the purchase method of accounting for business combinations under ASC 805, Business Combinations. The total purchase price is allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values as of the acquisition date.

As the Company finalizes the fair value of assets acquired and liabilities assumed, additional purchase price adjustments may be recorded during the measurement period (a period not to exceed 12 months). Fair value estimates are based on a complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. The judgments used to determine the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives and the expected future cash flows and related discount rates, can materiality impact our results of operations. Significant inputs used for the model included the amount of cash flows, the expected period of the cash flows and the discount rates. The finalization of the purchase accounting assessment may result in a change in the valuation of the contingent consideration and intangible assets, which may have a material impact on our results of operations and financial position.

IDV Acquisition

On January 27, 2017, the Company acquired IDV, in exchange for current cash consideration of $21.2 million, net of cash acquired and the fair value of contingent future consideration. At the date of acquisition, $2.5 million was deposited in an escrow account for fifteen months. The escrow fund is available to provide security to the Company to compensate it for losses it may incur as a result of any inaccuracy in the representations or warranties of IDV or the sellers contained in the IDV purchase agreement, any failure to comply with any covenant contained in the IDV purchase agreement or any liabilities or obligations related to the operation of IDV’s business prior to the closing of the acquisition.

In addition, in order to earn any future contingent consideration, IDV is required to meet certain billings thresholds at June 30, 2017 and December 31, 2017. At the date of the acquisition, the Company preliminarily assessed the probabilities of IDV meeting the future sales and billing thresholds and determined them to be probable. Therefore, contingent consideration was recorded as part of the purchase price allocation and the preliminary fair value of the contingent consideration was determined to be $5.0 million. Based on sales and billings thresholds met as of June 30, 2017, the Company paid $3.8 million of the contingent consideration as of September 30, 2017. IDV is a provider of threat assessment and operational visualization software located in Lansing, Michigan.The Company acquired IDV for its customer base and to complement some of the existing facets of its business with the Company’s existing customers.

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The following table summarizes the allocation of the purchase consideration and the estimated fair value of the assets acquired and the liabilities assumed for the acquisition of IDV made by the Company. The purchase price allocations for IDV included in the table below are preliminary. The following table also summarizes the aggregate consideration for IDV as ofSeptember 30, 2017 (in thousands):

Assets acquired	IDV
Accounts receivable		1,462
Other assets		242
Property and equipment		174
Trade names		1,590
Acquired technology		2,490
Customer relationships		3,400
Non-compete arrangement		240
Goodwill		21,196
Total assets acquired	$	30,794
Liabilities assumed
Accounts payable and accrued expenses		347
Deferred revenue		4,060
Other liabilities		132
Net assets acquired	$	26,255
Consideration paid
Cash paid, net of cash acquired		21,235
Acquisition date fair value of contingent consideration		5,020
Total	$	26,255

The weighted average useful life of all identified acquired intangible assets is 4.26 years. The weighted average useful lives for acquired technologies, customer relationships, non-compete arrangements and trade names are 3.0 years 5.0 years, 2.0 years and 5.0 years, respectively. Identifiable intangible assets with definite lives are amortized over the period of estimated benefit using the straight-line method and the estimated useful lives of two to five years. The straight-line method of amortization represents the Company’s best estimate of the distribution of the economic value of the identifiable intangible assets.                             

As a result of the acquisition, the Company recorded $21.2 million of goodwill. The goodwill balance is primarily attributed to the anticipated synergies from the acquisition and expanded market opportunities with respect to the integration of IDV’s products with the Company's other solutions. The Company believes that the factors listed above in relation to the purchase of IDV support the amount of goodwill recorded as a result of the purchase price paid for the acquisition, in relation to other acquired tangible and intangible assets. The resulting goodwill from the IDV acquisition is deductible for income tax purposes.

For the three and nine months ended September 30, 2017, the Company incurred transaction costs of none and $0.1 million, respectively in connection with the IDV acquisition, which were expensed as incurred and included in general and administrative expenses within the accompanying consolidated statements of operations.

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Unaudited Pro Forma Financial Information

The following tables reflect the unaudited pro forma combined results of operations for the three and nine months ended September 30, 2017 and the three and nine months ended September 30, 2016 as if the acquisition of IDV had taken place on January 1, 2016, as well as the results of acquired business included in our unaudited financial information for the three months ended September 30, 2017.  The unaudited pro forma financial information includes the effects of certain adjustments, including the amortization of acquired intangible assets and the associated tax effect and the elimination of the Company’s and the acquiree’s non-recurring acquisition related expenses:

	Revenue		Net income (loss)
Results of acquired business included in our three and nine months ended    (in thousands):
From the acquisition date to September 30, 2017	$	4,900	$	(2,274	)
For the nine months ended September 30, 2017 pro forma	$	5,437	$	(2,419	)
For the nine months ended September 30, 2016 pro forma	$	7,713	$	(1,189	)
For the three months ended September 30, 2017	$	1,882	$	(691	)
For the three months ended September 30, 2016 pro forma	$	2,595	$	(48	)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Basic and diluted earnings per share pro    forma	$	(0.02	)	$	(0.00	)	$	(0.09	)	$	(0.09	)

The unaudited pro forma information presented does not purport to be indicative of the results that would have been achieved had the acquisition been consummated at January 1, 2016 nor of the results which may occur in the future. The pro forma adjustments are based upon available information and certain assumptions that the Company believes are reasonable.

Crisis Commander Acquisition

On December 30, 2016, the Company completed the acquisition of Crisis Commander, a privately held SaaS mobile crisis management company based in Norsborg, Sweden. The acquisition was consummated pursuant to a purchase agreement for an initial preliminary purchase price of $2.7 million, subject to earn out payments contingent on meeting certain revenue thresholds, which are expected to be paid in March 2018.

The excess of purchase consideration over the fair value of net tangible liabilities assumed and identifiable intangible assets acquired was recorded as goodwill. The fair values assigned to tangible and identifiable intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions. The estimated fair values of assets acquired and liabilities assumed may be subject to change as additional information is received. Thus, the provisional measurements of fair value have been recorded.

The goodwill balance is primarily attributed to the anticipated synergies from the acquisition and expanded market opportunities with respect to the integration of Crisis Commander’s platform with the Company's other solutions. The goodwill balance is not deductible for U.S. income tax purposes.

The assets and results of operations of Crisis Commander were not significant to the Company’s consolidated financial position or results of operations, and thus pro forma information is not presented.

(9) Stockholders’ Equity

Preferred Stock

As of September 30, 2017, the Company had authorized 10,000,000 shares of preferred stock, par value $0.001, of which no shares were outstanding.

Common Stock

As of September 30, 2017, the Company had authorized 100,000,000 shares of common stock, par value $0.001.  Holders of common stock are entitled to one vote per share. At September 30, 2017 and December 31, 2016, there were 28,203,369 and 27,150,674 shares of common stock issued and outstanding, respectively.

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(10) Stock Plans and Stock-Based Compensation

The Company’s 2016 Equity Incentive Plan (the “2016 Plan”) became effective on September 15, 2016. The 2016 Plan provides for the grant of incentive stock options, non-qualified stock options, restricted stock awards, restricted stock unit awards, stock appreciation rights and performance share awards to employees, directors and consultants of the Company. A total of 3,893,118 shares of the Company’s common stock were initially reserved for issuance under the 2016 Plan, which is the sum of (1) 2,000,000 shares, (2) the number of shares reserved for issuance under the Company’s 2008 Equity Incentive Plan (the “2008 Plan”) at the time the 2016 Plan became effective (up to a maximum of 42,934 shares) and (3) shares subject to stock options or other stock awards granted under the 2008 Plan that would have otherwise returned to the Company’s 2008 Plan (up to a maximum of 1,850,184 shares). The number of shares of common stock reserved for issuance under the 2016 Plan will automatically increase on January 1 of each year, beginning on January 1, 2017, by 3% of the number of shares of the Company’s capital stock outstanding on the immediately preceding December 31, or such lesser number of shares as determined by the Company’s board of directors.

As a result of the adoption of the 2016 Plan, no further grants may be made under the 2008 Plan. The 2008 Plan provided for the grant of stock options to the Company’s employees, directors and consultants.  Stock option awards were granted with an exercise price equal to the fair market value of the Company’s common stock at the date of grant as determined by the Company’s board of directors. The option awards generally vested over four years and were exercisable any time after vesting. The stock options expire ten years after the date of grant.

2016 Employee Stock Purchase Plan

The Company’s Employee Stock Purchase Plan (“2016 ESPP”) became effective on September 15, 2016. A total of 500,000 shares of the Company’s common stock were initially reserved for issuance under the 2016 Plan. The number of shares reserved for issuance under the 2016 ESPP will automatically increase on January 1 of each year, beginning on January 1, 2017, by the lesser of 200,000 shares of the Company’s common stock, 1% of the number of shares of the Company’s common stock outstanding on the immediately preceding December 31, or such lesser number of shares as determined by the Company’s board of directors.

The 2016 ESPP allows eligible employees to purchase shares of the Company’s common stock at a discount of up to 15% through payroll deductions of their eligible compensation, subject to any plan limitations. Except for the initial offering period, the 2016 ESPP provides for separate six-month offering periods beginning each March and September of each fiscal year.

On each purchase date, eligible employees will purchase the Company’s stock at a price per share equal to 85% of the lesser of (i) the fair market value of the Company’s common stock on the offering date or (ii) the fair market value of the Company’s common stock on the purchase date.

For the nine months ended September 30, 2017, 128,786 shares of common stock were purchased under the 2016 ESPP. The 2016 ESPP is considered compensatory for purposes of stock-based compensation expense.

Stock Options

The Company recorded stock-based compensation expense of $2.8 million and $4.9 million for the three and nine months ended September 30, 2017, respectively. The Company recorded stock-based compensation expense of $0.8 million and $2.2 million for the three and nine months ended September 30, 2016, respectively.  

The total intrinsic value of options exercised for the three and nine months ended September 30, 2017 was $2.9 million and $6.5 million, respectively. This intrinsic value represents the difference between the fair market value of the Company’s common stock on the date of exercise and the exercise price of each option. Based on the fair market value of the Company’s common stock at September 30, 2017, the total intrinsic value of all outstanding options was $26.7 million.

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The fair value of stock option grants is determined using the Black-Scholes option pricing model with the following weighted average assumptions. In addition, the fair value per share on grant date is presented below: 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Employee Stock Options:
Fair value per share on grant date	$23.17 - $23.60		$8.94 - $9.02		$18.05 - $24.87		$8.51 - $9.02
Expected term (in years)		6.00	5.99 - 6.11		6.00 - 6.11		5.29 - 6.11
Expected volatility	60%		70%		60%		70%
Risk-free interest rate	1.82% - 1.93%		1.21% - 1.25%		1.82% - 2.47%		1.21% - 1.86%
Dividend rate		0%		0%		0%		0%
Employee Stock Purchase Plan:
Expected term (in years)		0.50		—		0.50		—
Expected volatility	60%			—	60%			—
Risk-free interest rate	1.18%			—	0.45% - 1.18%			—
Dividend rate		0%		—		0%		—

⁽¹⁾ The expected term represents the period that the stock-based compensation awards are expected to be outstanding. Since the Company did not have sufficient historical information to develop reasonable expectations about future exercise behavior, the Company used the simplified method to compute expected term, which reflects the average of the time-to-vesting and the contractual life;

⁽²⁾ The expected volatility of the Company’s common stock on the date of grant is based on the volatilities of publicly traded peer companies that are reasonably comparable to the Company’s own operations;

⁽³⁾ The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for zero coupon U.S. Treasury notes with maturities approximately equal to the expected term of the options; and

⁽⁴⁾ The expected dividend yield is assumed to be zero as the Company has never paid dividends and has no current plans to pay any dividends on the Company’s common stock.

Total unrecognized compensation cost related to nonvested stock options was approximately $15.3 million as of September 30, 2017, and is expected to be recognized over a weighted average period of 3.12 years.

A summary of activities under the 2008 Plan and the 2016 Plan is shown as follows for the year ended December 31, 2016 and the nine months ended September 30, 2017:

	Stock options outstanding			Weighted average exercise price
Outstanding at December 31, 2015		1,821,722		$	8.68
Granted		292,204			14.75
Exercised		(163,968	)		4.30
Forfeited		(65,533	)		8.03
Outstanding at December 31, 2016		1,884,425			10.02
Granted		997,244			22.47
Exercised		(370,084	)		5.64
Forfeited		(42,032	)		15.50
Outstanding at September 30, 2017		2,469,553		$	15.61

Stock-based compensation expense is recognized over the award’s expected vesting schedule, which is reduced for forfeitures.

Stock options outstanding, and options exercisable and vested are as follows:

Outstanding as of September 30, 2017		Remaining contractual life (years)		Weighted average exercise price		Exercisable as of September 30, 2017		Remaining contractual life (years)		Weighted average exercise price
	2,469,553		8.36	$	15.61		768,956		7.03	$	9.45

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Outstanding as of December 31, 2016		Remaining contractual life (years)		Weighted average exercise price		Exercisable as of December 31, 2016		Remaining contractual life (years)		Weighted average exercise price
	1,884,425		7.86	$	10.02		809,900		7.13	$	6.81

Vested and nonvested stock option activity was as follows:

	Vested				Nonvested
	Options outstanding		Weighted average exercise price		Options outstanding		Weighted average exercise price
Outstanding at September 30, 2017		768,956	$	9.45		1,700,597	$	18.40
Outstanding at December 31, 2016		809,900	$	6.81		1,074,525	$	12.44

Restricted Stock Units

In August 2017, we granted 286,000 restricted stock units to members of our senior management pursuant to the 2016 Plan. We account for restricted stock units issued to employees at fair value, based on the market price of our stock on the date of grant. During the three months ended September 30, 2017 and 2016 we recorded $0.4 million and none, respectively, of stock-based compensation related to the restricted stock units that had been issued to-date. During the nine months ended September 30, 2017 and 2016 we recorded $0.4 million and none, respectively, of stock-based compensation related to the restricted stock units that had been issued to-date. There were no restricted stock units which vested during the three and nine months ended September 30, 2017 and 2016, respectively.

As of September 30, 2017, there was $6.3 million of unrecognized compensation expense related to unvested employee restricted stock unit awards which is expected to be recognized over a weighted-average period of approximately 2.8 years. For restricted stock unit awards subject to graded vesting, we recognize compensation cost on a straight-line basis over the service period for the entire award.

Market-Based Restricted Stock Units

In August 2017, we granted 286,000 market-based restricted stock units to members of our senior management pursuant to the 2016 Plan. The restricted stock units vest based on the Company achieving certain stock price thresholds which range from $35 per share to $55 per share for 30 consecutive trading days as reported by The Nasdaq Stock Market, LLC, subject to the employee’s continued employment with the Company through the date of achievement. The share price of our common stock on the date of issuance of the market-based restricted stock unit was $23.60 per share. The fair value is based on values calculated under the Monte Carlo simulation model on the grant date. The key estimates used in the Monte-Carlo simulation were a risk-free rate of 2.26%, dividend yield of zero, expected term of 10 years and volatility of 60%. Compensation cost is not adjusted in future periods for subsequent changes in the expected outcome of market related conditions. For the three and nine months ended September 30, 2017, we recognized $1.0 million, respectively, of stock compensation expense in connection with these awards, which is included in general and administrative expenses.

As of September 30, 2017, there was $6.8 million of unrecognized compensation expense related to unvested market based awards which is expected to be recognized over a weighted-average period of approximately 1.1 years. We recognize compensation cost on a straight-line basis over the service period for the entire award.

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Stock-Based Compensation Expense

The Company recorded the total stock-based compensation expense as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Cost of revenue	$	141	$	46	$	266	$	135
Sales and marketing		691		211		1,250		503
Research and development		416		87		738		263
General and administrative		1,555		415		2,618		1,264
Total	$	2,803	$	759	$	4,872	$	2,165

(11) Basic and Diluted Net Loss per Share

Basic net loss per common share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share of common stock is computed by giving effect to all potential dilutive shares of common stock. Basic and diluted net loss per share of common stock were the same for all periods presented as the impact of all potentially dilutive securities outstanding was anti-dilutive.  

The following common equivalent shares were excluded from the diluted net loss per share calculation because their inclusion would have been anti-dilutive:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Stock options		2,469,553		1,846,853		2,469,553		1,846,853
Non-vested market-based restricted stock units		286,000		—		286,000		—
Non-vested restricted stock units		286,000		—		286,000		—
Total		3,041,553		1,846,853		3,041,553		1,846,853

The Company is required to reserve and keep available from the Company’s authorized but unissued shares of common stock a number of shares equal to the number of shares subject to outstanding awards under the 2008 Plan and the number of shares reserved for issuance under each of the 2016 Plan and 2016 ESPP.

The amount of such shares of the Company’s common stock reserved for these purposes at September 30, 2017 is as follows:

	Number of Shares
Stock options issued and outstanding		2,469,553
Additional shares available for grant under equity plans		2,436,005
Total		4,905,558

(12) Income Taxes

The Company is subject to income tax in the United States as well as other tax jurisdictions in which it conducts business. Earnings from non-U.S. activities are subject to local country income tax. The Company does not provide for US deferred income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are reinvested indefinitely.

The Company’s tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items arising in that quarter. In each quarter, the Company updates its estimate of the annual effective tax rate, and if the estimated annual tax rate changes, the Company makes a cumulative adjustment in that quarter. The Company’s quarterly tax provision, and its quarterly estimate of its annual effective tax rate, are subject to significant volatility due to several factors, including the Company’s ability to accurately predict its pre-tax income and loss in multiple jurisdictions.

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For the three months ended September 30, 2017 and 2016, the Company recorded a tax benefit for income taxes of $79,000 and a provision for income taxes of $35,000, respectively, resulting in an effective tax benefit of 1.83% and effective tax rate of 1.35%, respectively. For the nine months ended September 30, 2017 and 2016, the Company recorded a tax benefit of $65,000 and a tax benefit of $75,000, respectively, resulting in an effective tax benefit of 0.47% and benefit of 0.86%, respectively.During the current year periods, the effective tax rate is lower than the statutory federal tax rate as the Company was not able to benefit from its net operating losses due to its full valuation allowance.

As of September 30, 2017, the Company had gross tax-effected unrecognized tax benefits of $0.3 million, of which $0.3 million, if recognized, would favorably impact the effective tax rate. The Company’s existing tax positions will continue to generate an increase in unrecognized tax benefits in subsequent periods. The Company’s policy is to record interest and penalties related to unrecognized tax benefits as income tax expense. During the three and nine months ended September 30, 2017 and 2016, the amounts recorded related to the accrual of interest and penalties were immaterial in each period.  

(13) Segment information

The Company operates as one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker, or CODM, who is the Company’s chief executive officer, in deciding how to allocate resources and assess the Company’s financial and operational performance. While the Company has applications that address multiple use cases, all of the Company’s applications operate on and leverage a single technology platform and are deployed and sold in an identical way. In addition, the Company’s CODM evaluates the Company’s financial information and resources and assesses the performance of these resources on a consolidated basis. As a result, the Company has determined that the Company’s business operates in a single operating segment. Since the Company operates as one operating segment, all required financial segment information can be found in the consolidated financial statements.

(14) Geographic Concentrations

Revenue by location is determined by the billing address of the customer. Approximately 90% and 90% of the Company’s revenue was from the United States for the three and nine months ended September 30, 2017, respectively. Approximately 90% and 89% of the Company’s revenue was from the United States for the three and nine months ended September 30, 2016, respectively. No other individual country comprised more than 10% of total revenue for the three and nine months ended September 30, 2017 and 2016. Property and equipment by geographic location is based on the location of the legal entity that owns the asset. As of September 30, 2017, more than 88% of the Company’s property and equipment was located in the United States.

(15) Commitments and Contingencies

(a) Leases

The Company leases office space in Pasadena, California; San Francisco, California; Burlington, Massachusetts; Colchester, England; Windsor, England; Lansing, Michigan, Orlando, Florida, Norsborg, Sweden and Beijing, China under operating leases and recognizes escalating rent expense on a straight-line basis over the expected lease term.

There were no material changes in our commitments under contractual obligations, as disclosed in the Company’s audited consolidated financial statements for the year ended December 31, 2016 and related notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016, except those disclosed below.

In December 2016, the Company entered into a new lease for its executive offices in Burlington, Massachusetts that began on June 1, 2017 and will account for $7.8 million in minimum lease payments over the next five years.

In January 2017, as a result of the acquisition of IDV, the Company inherited leases for IDV’s executive offices in Lansing, Michigan and sales office in Orlando, Florida which will expire over the next seven years and will account for $1.4 million in minimum lease payments.

In June 2017, the Company entered into a new lease for its offices in Beijing, China that will increase its future minimum lease payments beginning in July 2017 by $0.8 million over the next two years.

In June 2017, the Company entered into a new lease for its offices in Maidenhead, United Kingdom that will increase its future minimum lease payments beginning in July 2017 by $0.2 million over the next four years.

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As of September 30, 2017, future minimum lease payments under non-cancelable operating leases are as follows (in thousands):

	Amounts
2017 (for the remaining three months)	$	761
2018		2,659
2019		2,106
2020		1,938
2021		1,892
2022 and thereafter		1,354
Total minimum lease payments	$	10,710

(b) Rent

Rent expense was $0.8 million and $1.7 million for the three and nine months ended September 30, 2017, respectively, and $0.4 million and $1.2 million for the three and nine months ended September 30, 2016, respectively.

(c) Litigation

In the normal course of business, the Company has been subjected to various unasserted claims. The Company does not believe these will have a material adverse impact to the financial statements.

(d)Credit Facility

The Company has a revolving line of credit agreement with Western Alliance Bank, which provides for a $15.0 million revolving secured credit facility maturing on June 30, 2018. Amounts outstanding under the line of credit bear interest at the prime rate plus 0.75% with accrued interest payable on a monthly basis and outstanding and unpaid principal due upon maturity. Western Alliance Bank maintains a security interest in substantially all of the Company’s tangible and intangible assets, excluding intellectual property, to secure any outstanding amounts under the loan agreement. The loan agreement contains customary events of default, conditions to borrowing and covenants, including restrictions on the Company’s ability to dispose of assets, make acquisitions, incur debt, incur liens and make distributions and dividends to stockholders. The loan agreement also includes a financial covenant related to the Company’s recurring revenue renewal rate. During the continuance of an event of default, Western Alliance Bank may accelerate amounts outstanding, terminate the credit facility and foreclose on the collateral.

As of September 30, 2017, no amounts had been drawn under the credit facility.

(e) Employee Contracts

The Company has entered into employment contracts with certain of the Company’s executive officers which provide for at-will employment. However, under the provisions of the contracts, the Company would incur severance obligations of up to twelve months of the executive’s annual base salary for certain events, such as involuntary terminations.

(16) Subsequent Events

The Company evaluated subsequent events and concluded that no subsequent events have occurred that would require recognition in the unaudited Condensed Consolidated Financial Statements or disclosure in the notes thereto.

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

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with (i) our condensed consolidated financial statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q and (ii) our audited consolidated financial statements and the related notes and management’s discussion and analysis of financial condition and results of operations for the fiscal year ended December 31, 2016 included in our Annual Report on Form 10-K filed with the SEC on March 23, 2017. This Quarterly Report on Form 10-Q contains “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. These statements are often identified by the use of words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “will,” “would” or the negative or plural of these words or similar expressions or variations. Such forward-looking statements are subject to a number of risks, uncertainties, assumptions and other factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by the forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those identified herein, and those discussed in the section titled “Risk Factors”, set forth in Part II, Item 1A of this Quarterly Report on Form 10-Q and in our other SEC filings. You should not rely upon forward-looking statements as predictions of future events. Furthermore, such forward-looking statements speak only as of the date of this report. Except as required by law, we undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements.

Overview

Everbridge is a global software company that provides enterprise software applications that automate and accelerate organizations’ operational response to critical events in order to keep people safe and businesses running faster. During public safety threats such as active shooter situations, terrorist attacks or severe weather conditions, as well as critical business events such as IT outages, cyber-attacks or other incidents such as product recalls or supply-chain interruptions, our SaaS-based platform enables our customers to quickly and reliably aggregate and assess threat data, locate people at risk and responders able to assist, automate the execution of pre-defined communications processes and track progress on executing response plans. Our customers use our platform to identify and assess hundreds of different types of threats to their organizations, people, assets or brand. Our solutions enable organizations to deliver intelligent, contextual messages to, and receive verification of delivery from, hundreds or millions of recipients, across multiple communications modalities such as voice, SMS and e-mail. Our applications enable the delivery of messages in near real-time to more than 100 different communication devices, in over 200 countries and territories, in 15 languages and dialects – all simultaneously. We delivered 1.5 billion communications in 2016. We automate the process of sending contextual notifications to multiple constituencies and receiving return information on a person’s or operation’s status so that organizations can act quickly and precisely. Our Critical Event Management platform is comprised of a comprehensive set of software applications that address the full spectrum of tasks an organization has to perform to manage a critical event, including Mass Notification, Incident Management, Safety Connection, IT Alerting, Visual Command Center, Crisis Commander, Community Engagement and Secure Messaging. We believe that our broad suite of integrated, enterprise applications delivered via a single global platform is a significant competitive advantage in the market for Critical Event Management solutions, which we refer to generally as CEM.

Our customer base has grown from 867 customers at the end of 2011 to more than 3,500 customers as of September 30, 2017. As of September 30, 2017, our customers were based in 38 countries and included eight of the 10 largest U.S. cities, eight of the 10 largest U.S.-based investment banks, 25 of the 25 busiest North American airports, six of the 10 largest global consulting firms, six of the 10 largest global auto makers, all four of the largest global accounting firms, four of the 10 largest U.S.-based health care providers and four of the 10 largest U.S.-based health insurers. We provide our applications to customers of varying sizes, including enterprises, small businesses, non-profit organizations, educational institutions and governmental agencies. Our customers span a wide variety of industries including technology, energy, financial services, healthcare and life sciences, manufacturing, media and entertainment, retail, higher education and professional services.

We sell all of our critical event management and enterprise safety applications on a subscription basis. We generally enter into contracts that range from one to three years in length, with an average contract duration of 2.0 years as of September 30, 2017, and generally bill and collect payment annually in advance. We derive substantially all of our revenue from subscriptions to our critical event management and enterprise safety applications. Historically, we derived more than 86% of our revenue in each of the last three fiscal years from sales of our Mass Notification application. Over 90% of the revenue that we recognized in each of the eight most recently completed quarters was generated from contracts entered into in prior quarters or renewals of those contracts; the balance of the revenue that we recognized in each such quarter was generated from contracts entered into with new customers or new contracts, other than renewals, entered into with existing customers in such quarter. Our pricing model is based on the number of applications subscribed to and, per application, the number of people, locations and things connected to our platform as well as the volume of communications. We also offer premium services including data feeds for social media, threat intelligence and weather. We generate additional revenue by expanding the number of applications that our customers subscribe to and the number of contacts and devices connected to our platform.

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We generated revenue of $27.3 million and $19.9 million for the three months ended September 30, 2017 and 2016, respectively, representing a period-over-period increase of 37%.We generated revenue of $75.2 million and $55.6 million for the nine months ended September 30, 2017 and 2016, respectively, representing a period-over-period increase of 35%. We had net losses of $4.2 million and $2.6 million for the three months ended September 30, 2017 and 2016, respectively. We had net losses of $13.9 million and $8.7 million for the nine months ended September 30, 2017 and 2016, respectively. Our Adjusted EBITDA, which is a measure that is not calculated and presented in accordance with generally accepted accounting principles in the United States, or GAAP, was $0.8 million and $0.3 million for the three months ended September 30, 2017 and 2016, respectively. Our Adjusted EBITDA was $(1.6) million and $(0.4) million for the nine months ended September 30, 2017 and 2016, respectively. See “Other Metrics” below for a discussion of the limitations of adjusted EBITDA and a reconciliation of adjusted EBITDA to net loss, the most directly comparable financial measure calculated and presented in accordance with GAAP.

As of September 30, 2017 and December 31, 2016, 15% and 14% of our customers, respectively, were located outside of the United States and these customers generated 10% and 10% of our total revenue for the three months ended September 30, 2017 and 2016, respectively.

We have focused on rapidly growing our business and believe that the future growth of our business is dependent on many factors, including our ability to increase the functionality of our platform and applications, expand our customer base, accelerate adoption of our applications beyond Mass Notification within our existing customer base and expand our international presence. Our future growth will also depend on the growth in the market for critical event management and enterprise safety solutions and our ability to effectively compete. In order to further penetrate the market for critical event management and enterprise safety solutions and capitalize on what we believe to be a significant opportunity, we intend to continue to invest in research and development, build-out our data center infrastructure and services capabilities and hire additional sales representatives, both domestically and internationally, to drive sales to new customers and incremental sales of new applications to existing customers. Nevertheless, we expect to continue to incur losses in the near term and, if we are unable to achieve our growth objectives, we may not be able to achieve profitability.

Recent Developments

In September 2016, we closed our initial public offering, or IPO, in which we sold a total of 6,250,000 shares of our common stock.  We received net cash proceeds of $66.1 million, net of underwriting discounts and commissions and other costs associated with the offering paid by us.

In December 2016, we acquired 100% of the shares of Svensk Krisledning AB, or Crisis Commander. We acquired Crisis Commander for cash consideration of approximately $2.3 million with additional time and performance-based milestones that could result in additional payments of $0.4 million. Crisis Commander is a SaaS mobile crisis management company operating out of Sweden.

In January 2017, we acquired 100% of the membership interests of IDV Solutions, LLC, or IDV. We acquired IDV for cash consideration of approximately $21.2 million, with additional time and performance-based milestones that could result in additional payments of $6.2 million. IDV is a provider of threat assessment and operational visualization software located in Lansing, Michigan.

In April 2017, we completed our follow on public offering, in which we sold a total of 553,825 shares of our common stock, which included 26,825 shares sold pursuant to the exercise by the underwriters of an option to purchase shares at a public offering price of $19.85 per share. In addition, 3,162,164 shares of our common stock were sold by certain of our existing stockholders. We received cash proceeds of $9.9 million, net of underwriting discounts and commissions and other costs associated with the offering paid or payable by us. We did not receive any of the proceeds from the sales by the selling stockholders.

Presentation of Financial Statements

Our consolidated financial statements include the accounts of our wholly-owned subsidiaries. Business acquisitions are included in our consolidated financial statements from the date of the acquisition. Our purchase accounting resulted in all assets and liabilities of acquired businesses being recorded at their estimated fair values on the acquisition dates. All intercompany balances and transactions have been eliminated in consolidation.

We report our financial results as one operating segment. Our operating results are regularly reviewed on a consolidated basis by our chief executive officer, who is our chief operating decision maker, principally to make strategic decisions regarding how we allocate our resources and to assess our consolidated operating performance.

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Components of Results of Operations

Revenue

We derive substantially all of our revenue from the sale of subscriptions to our critical event management and enterprise safety applications.

We generally bill and collect payment for our subscriptions annually in advance. All revenue billed in advance of services being delivered is recorded in deferred revenue. The initial subscription period typically ranges from one to three years. We offer varying levels of customer support based on customer needs and the complexity of their businesses, including the level of usage by a customer in terms of minutes or the amount of data used to transmit the notifications. Our pricing model is based on the number of applications subscribed to and, per application, the number of people, locations and things connected to our platform as well as the volume of communications. We also offer premium services including data feeds for social media, threat intelligence and weather. We generate additional revenue by expanding the number of premium features and applications that our customers subscribe to and the number of contacts connected to our platform.

We generate an immaterial amount of revenue from set-up fees, which consist of participant process mapping, configuration, customer data migration and integration. We also sell professional services, which have been immaterial to date.

Cost of Revenue

Cost of revenue includes expenses related to the fulfillment of our subscription services, consisting primarily of employee-related expenses for data center operations and customer support, including salaries, bonuses, benefits and stock-based compensation expense. Cost of revenue also includes hosting costs, messaging costs and depreciation and amortization. As we add data center capacity and support personnel in advance of anticipated growth, our cost of revenue will increase and, if anticipated revenue growth does not occur, our gross profit will be adversely affected.

Operating Expenses

Operating expenses consist of sales and marketing, research and development and general and administrative expenses. Salaries, bonuses, stock-based compensation expense and other personnel costs are the most significant components of each of these expense categories. We include stock-based compensation expense incurred in connection with the grant of stock options within the applicable operating expense category based on the equity award recipient’s functional area.

Sales and Marketing

Sales and marketing expense primarily consists of employee-related expenses for sales, marketing and public relations employees, including salaries, bonuses, commissions, benefits and stock-based compensation expense. Sales and marketing expense also includes trade show, market research, advertising and other related external marketing expense as well as office and software related costs to support sales. We defer certain sales commissions related to acquiring new customers and amortize these expenses ratably over the term of the corresponding subscription agreement. We plan to continue to expand our sales and marketing functions to grow our customer base and increase sales to existing customers. This growth will include adding sales personnel and expanding our marketing activities to continue to generate additional leads and build brand awareness. In the near term, we expect our sales and marketing expense to increase on an absolute dollar basis as we hire new sales representatives in the United States and worldwide and grow our marketing staff.

Research and Development

Research and development expense primarily consists of employee-related expenses for research and development staff, including salaries, bonuses, benefits and stock-based compensation expense. Research and development expense also includes the cost of certain third-party services, office related costs to support research and development activities, software subscriptions and hosting costs. We capitalize certain software development costs that are attributable to developing new applications and adding incremental functionality to our platform and amortize these costs over the estimated life of the new application or incremental functionality, which is generally three years. We focus our research and development efforts on improving our applications, developing new applications and delivering new functionality. In the near term, we expect our research and development expense to increase on an absolute dollar basis as we continue to increase the functionality of our platform and applications.

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General and Administrative

General and administrative expense primarily consists of employee-related expenses for administrative, legal, finance and human resource personnel, including salaries, bonuses, benefits and stock-based compensation expense. General and administrative expense also includes professional fees, insurance premiums, corporate expenses, transaction-related costs, office-related expenses, facility costs, depreciation and amortization and software license costs. In the near term, we expect our general and administrative expense to increase on an absolute dollar basis as we incur the costs associated with being a publicly traded company.

Interest and Investment Income

Interest income consists of interest earned on our cash balances held at financial institutions. Investment income consist of interest earned on our short term investments which consist of U.S. treasuries, U.S. government agency obligations and money market funds.

Interest Expense

Interest expense consists of interest on our outstanding debt obligations and interest on our capital leases.

Other Income and Expense, Net

Other expense, net consists primarily of realized foreign currency gains and losses.

Results of Operations

The following tables set forth our results of operations for the periods presented and as a percentage of our total revenue for those periods. The period-to-period comparison of our historical results is not necessarily indicative of the results that may be expected in the future.

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands)
Revenue	$	27,312		$	19,932		$	75,177		$	55,566
Cost of revenue(1) (2)		8,076			6,173			22,969			17,324
Gross profit		19,236			13,759			52,208			38,242
Operating expenses:
Sales and marketing(1)(2)	$	11,626		$	8,605		$	33,589		$	25,659
Research and development(1) (2)		5,626			3,917			16,082			10,560
General and administrative(1) (2)		6,375			3,666			16,640			10,252
Total operating expenses		23,627			16,188			66,311			46,471
Operating loss		(4,391	)		(2,429	)		(14,103	)		(8,229	)
Other income (expenses), net		81			(165	)		168			(504	)
Loss before income taxes		(4,310	)		(2,594	)		(13,935	)		(8,733	)
(Provision for) benefit from income taxes		79			(35	)		65			75
Net loss attributable to common stockholders	$	(4,231	)	$	(2,629	)	$	(13,870	)	$	(8,658	)

⁽¹⁾ Includes stock-based compensation expense as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
	(in thousands)
Cost of revenue	$	141	$	46	$	266	$	135
Sales and marketing		691		211		1,250		503
Research and development		416		87		738		263
General and administrative		1,555		415		2,618		1,264
Total	$	2,803	$	759	$	4,872	$	2,165

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⁽²⁾ Includes depreciation and amortization of acquired intangible assets as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
	(in thousands)
Cost of revenue	$	1,591	$	1,470	$	5,372	$	4,452
Sales and marketing		78		43		228		158
Research and development		56		18		148		225
General and administrative		693		443		1,898		840
Total	$	2,418	$	1,974	$	7,646	$	5,675

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Consolidated Statements of Operations, as a percentage    of revenue(1)
Revenue		100	%		100	%		100	%		100	%
Cost of revenue		30	%		31	%		31	%		31	%
Gross profit		70	%		69	%		69	%		69	%
Operating expenses:
Sales and marketing		43	%		43	%		45	%		46	%
Research and development		21	%		20	%		21	%		19	%
General and administrative		23	%		18	%		22	%		18	%
Total operating expenses		87	%		81	%		88	%		84	%
Operating loss		(16	)%		(12	)%		(19	)%		(15	)%
Other income (expenses), net	*				(1	)%	*				(1	)%
Loss before income taxes		(16	)%		(13	)%		(19	)%		(16	)%
(Provision for) benefit from income taxes	*			*			*			*
Net loss attributable to common stockholders		(16	)%		(13	)%		(19	)%		(16	)%

(1) Columns may not add up to 100% due to rounding.

* Represents less than 0.5% of revenue.

Comparison of the Three Months Ended September 30, 2017 and 2016

Revenue

	Three Months Ended September 30,				Change
	2017		2016		$		%
	(dollars in thousands)
Revenue	$	27,312	$	19,932	$	7,380		37.0	%

Revenue increased by $7.4 million for the three months ended September 30, 2017 compared to the same period in 2016. The increase was due to a $5.0 million increase in sales of our historical solutions driven by expansion of our customer base from 3,076 customers as of September 30, 2016 to 3,560 as of September 30, 2017, including increased sales to larger organizations with greater numbers of contacts and locations. In addition, $2.4 million of the increase was the result of revenue from Crisis Commander and IDV, which were acquired in December 2016 and January 2017, respectively.

Cost of Revenue

	Three Months Ended September 30,						Change
	2017			2016			$		%
	(dollars in thousands)
Cost of revenue	$	8,076		$	6,173		$	1,903		30.8	%
Gross margin %		70	%		69	%

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Cost of revenue increased by $1.9 million for the three months ended September 30, 2017 compared to the same period in 2016. The increase was due to a $0.9 million increase in employee-related costs associated with our increased headcount from 95 employees as of September 30, 2016 to 121 employees as of September 30, 2017. In addition, $0.8 million of the increase was attributed to an increase in hosting, software and messaging costs and $0.2 million attributed to an increase in office related expenses to support revenue generating activities.

Gross margin percentage increased due to a decrease in amortization of acquired intangible assets and capitalized software, which was offset by our continued investment in personnel to support our growth.

Operating Expenses

Sales and Marketing Expense

	Three Months Ended September 30,						Change
	2017			2016			$		%
	(dollars in thousands)
Sales and marketing	$	11,626		$	8,605		$	3,021		35.1	%
% of revenue		43	%		43	%

Sales and marketing expense increased by $3.0 million for the three months ended September 30, 2017 compared to the same period in 2016. The increase was primarily due to a $2.1 million increase in stock compensation and employee-related costs associated with our increased headcount from 165 employees as of September 30, 2016 to 206 employees as of September 30, 2017. The remaining increase was principally the result of a $0.5 million increase in costs related to outside sales representatives and consultants and a $0.3 million increase in software costs and office related expenses to support the sales team.

Research and Development Expense

	Three Months Ended September 30,						Change
	2017			2016			$		%
	(dollars in thousands)
Research and development	$	5,626		$	3,917		$	1,709		43.6	%
% of revenue		21	%		20	%

Research and development expense increased by $1.7 million for the three months ended September 30, 2017 compared to the same period in 2016. The increase was primarily due to a $1.7 million increase in stock compensation and employee-related costs associated with our increased headcount from 116 employees as of September 30, 2016 to 153 employees as of September 30, 2017. The remaining increase was principally the result of a $0.1 million increase in hosting cost to support research and development activities and a $0.2 million increase in office related expenses. A total of $1.2 million of internally developed software costs during the three months ended September 30, 2016 and $1.5 million of internally developed software costs during the three months ended September 30, 2017 were capitalized, resulting in a decrease of the expense by $0.3 million in the 2017 period.

General and Administrative Expense

	Three Months Ended September 30,						Change
	2017			2016			$		%
	(dollars in thousands)
General and administrative	$	6,375		$	3,666		$	2,709		73.9	%
% of revenue		23	%		18	%

General and administrative expense increased by $2.7 million for the three months ended September 30, 2017 compared to the same period in 2016. The increase was primarily due to a $2.1 million increase in stock compensation and employee-related costs associated with our increased headcount from 60 employees as of September 30, 2016 to 73 employees as of September 30, 2017. The remaining increase was due to a $0.2 million increase in depreciation and amortization attributable to our acquired intangible assets and a $0.4 million increase in office related expenses to support the administrative team.

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Other Income (Expense), Net

	Three Months Ended September 30,					Change
	2017		2016			$		%
	(dollars in thousands)
Other income (expense), net	$	81	$	(165	)	$	246		(149.1	)%
% of revenue	*			(1	)%

Other income (expense), net changed by $0.2 million for the three months ended September 30, 2017 compared to the same period in 2016 as we paid off our debt in September 2016 resulting in a $0.2 million reduction in interest expense related to our line of credit and term loan between the two periods. In addition, we earned $0.1 million in interest and investment income as a result of proceeds invested from our public offerings.

Comparison of the Nine Months Ended September 30, 2017 and 2016

Revenue

	Nine Months Ended September 30,				Change
	2017		2016		$		%
	(dollars in thousands)
Revenue	$	75,177	$	55,566	$	19,611		35.3	%

Revenue increased by $19.6 million for the nine months ended September 30, 2017 compared to the same period in 2016. The increase was due to a $13.8 million increase in sales of our historical solutions driven by expansion of our customer base from 3,076 customers as of September 30, 2016 to 3,560 as of September 30, 2017, including increased sales to larger organizations with greater numbers of contacts and locations. In addition, $5.8 million of the increase was the result of revenue from Crisis Commander and IDV which were acquired in December 2016 and January 2017, respectively.

Cost of Revenue

	Nine Months Ended September 30,						Change
	2017			2016			$		%
	(dollars in thousands)
Cost of revenue	$	22,969		$	17,324		$	5,645		32.6	%
Gross margin %		69	%		69	%

Cost of revenue increased by $5.6 million for the nine months ended September 30, 2017 compared to the same period in 2016. The increase was primarily due to a $2.6 million increase in employee-related costs associated with our increased headcount from 95 employees as of September 30, 2016 to 121 employees as of September 30, 2017. In addition, $1.8 million of the increase was attributed to an increase in hosting, software and messaging costs, $0.9 million increase in depreciation and amortization expense attributable to our acquired intangible assets and a $0.2 million increase in office related expenses to support revenue generating activities.

Gross margin percentage remained constant due to an increase in revenue, primarily offset by an increase in amortization of acquired intangible assets and capitalized software, as well as our continued investment in personnel to support our growth.

Operating Expenses

Sales and Marketing Expense

	Nine Months Ended September 30,						Change
	2017			2016			$		%
	(dollars in thousands)
Sales and marketing	$	33,589		$	25,659		$	7,930		30.9	%
% of revenue		45	%		46	%

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Sales and marketing expense increased by $7.9 million for the nine months ended September 30, 2017 compared to the same period in 2016. The increase was primarily due to a $6.3 million increase in stock compensation and employee-related costs associated with our increased headcount from 165 employees as of September 30, 2016 to 206 employees as of September 30, 2017. The remaining increase was principally the result of a $0.4 million increase in advertising costs, a $0.5 million increase in outside sales representatives and consultants, a $0.2 million increase in software cost and a $0.5 million increase in office related expenses to support the sales team.

Research and Development Expense

	Nine Months Ended September 30,						Change
	2017			2016			$		%
	(dollars in thousands)
Research and development	$	16,082		$	10,560		$	5,522		52.3	%
% of revenue		21	%		19	%

Research and development expense increased by $5.5 million for the nine months ended September 30, 2017 compared to the same period in 2016. The increase was primarily due to a $5.0 million increase in stock compensation and employee-related costs associated with our increased headcount from 116 employees as of September 30, 2016 to 153 employees as of September 30, 2017. The remaining increase was principally the result of a $0.6 million increase in hosting and software cost to support research and development activities and a $0.3 million increase in office related expenses to support research and development activities. A total of $4.3 million of internally developed software costs during the nine months ended September 30, 2016 and $4.7 million of internally developed software costs during the nine months ended September 30, 2017 were capitalized, resulting in a decrease of the expense by $0.4 million in the 2017 period.

General and Administrative Expense

	Nine Months Ended September 30,						Change
	2017			2016			$		%
	(dollars in thousands)
General and administrative	$	16,640		$	10,252		$	6,388		62.3	%
% of revenue		22	%		18	%

General and administrative expense increased by $6.4 million for the nine months ended September 30, 2017 compared to the same period in 2016. The increase was primarily due to a $3.9 million increase in stock compensation and employee-related costs associated with our increased headcount from 60 employees as of September 30, 2016 to 73 employees as of September 30, 2017. The remaining increase was due to a $1.0 million increase in depreciation and amortization expense attributable to our acquired intangible assets, a $0.8 million increase in cost to operate as a public company and an increase of $0.7 million in office related expenses to support the administrative team.

Other Income (Expense), Net

	Nine Months Ended September 30,					Change
	2017		2016			$		%
	(dollars in thousands)
Other income (expense), net	$	168	$	(504	)	$	672		(133.3	)%
% of revenue	*			(1	)%

Other income (expense) decreased by $0.7 million for the nine months ended September 30, 2017 compared to the same period in 2016 as we paid off our debt in September 2016 resulting in a $0.5 million reduction in interest expense related to our line of credit and term loan between the two periods. In addition, we earned $0.2 million in interest and investment income as a result of proceeds invested from our public offerings.

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Other Metrics

We regularly monitor a number of financial and operating metrics in order to measure our current performance and estimate our future performance. Our other business metrics may be calculated in a manner different than similar other business metrics used by other companies.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017			2016
	(dollars in thousands)
Adjusted EBITDA	$	807	$	334	$	(1,646	)	$	(387	)
Adjusted gross margin	$	19,670	$	14,371	$	53,799		$	40,128
Free cash flow	$	4,364	$	6,579	$	(1,544	)	$	1,502

• Adjusted EBITDA.  Adjusted EBITDA represents our net loss before interest and investment income and interest expense, income tax expense and benefit, depreciation and amortization expense and stock-based compensation expense. We do not consider these items to be indicative of our core operating performance. The items that are non-cash include depreciation and amortization expense and stock-based compensation expense. Adjusted EBITDA is a measure used by management to understand and evaluate our core operating performance and trends and to generate future operating plans, make strategic decisions regarding the allocation of capital and invest in initiatives that are focused on cultivating new markets for our solutions. In particular, the exclusion of certain expenses in calculating adjusted EBITDA facilitates comparisons of our operating performance on a period-to-period basis. Adjusted EBITDA is not a measure calculated in accordance with GAAP. We believe that adjusted EBITDA provides useful information to investors and others in understanding and evaluating our operating results in the same manner as our management and board of directors. Nevertheless, use of adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our financial results as reported under GAAP. Some of these limitations are: (1) although depreciation and amortization are non-cash charges, the capitalized software that is amortized will need to be replaced in the future, and adjusted EBITDA does not reflect cash capital expenditure requirements for such replacements or for new capital expenditure requirements; (2) adjusted EBITDA does not reflect changes in, or cash requirements for, our working capital needs; (3) adjusted EBITDA does not reflect the potentially dilutive impact of equity-based compensation; (4) adjusted EBITDA does not reflect tax payments or receipts that may represent a reduction or increase in cash available to us; and (5) other companies, including companies in our industry, may calculate adjusted EBITDA or similarly titled measures differently, which reduces the usefulness of the metric as a comparative measure. Because of these and other limitations, you should consider adjusted EBITDA alongside our other GAAP-based financial performance measures, net loss and our other GAAP financial results. The following table presents a reconciliation of adjusted EBITDA to net loss, the most directly comparable GAAP measure, for each of the periods indicated:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands)
Net loss	$	(4,231	)	$	(2,629	)	$	(13,870	)	$	(8,658	)
Interest and investment (income) expense, net		(104	)		195			(229	)		506
Provision for (benefit from) income taxes		(79	)		35			(65	)		(75	)
Depreciation and amortization expense		2,418			1,974			7,646			5,675
Stock-based compensation expense		2,803			759			4,872			2,165
Adjusted EBITDA	$	807		$	334		$	(1,646	)	$	(387	)

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• Adjusted Gross Margin.  Adjusted gross margin represents gross profit plus stock-based compensation and amortization of acquired intangibles. Adjusted gross margin is a measure used by management to understand and evaluate our core operating performance and trends and to generate future operating plans. The exclusion of stock-based compensation expense and amortization of acquired intangibles facilitates comparisons of our operating performance on a period-to-period basis. In the near term, we expect these expenses to continue to negatively impact our gross profit. Adjusted gross margin is not a measure calculated in accordance with GAAP. We believe that adjusted gross margin provides useful information to investors and others in understanding and evaluating our operating results in the same manner as our management and board of directors. Nevertheless, our use of adjusted gross margin has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our financial results as reported under GAAP. You should consider adjusted gross margin alongside our other GAAP-based financial performance measures, gross profit and our other GAAP financial results. The following table presents a reconciliation of adjusted gross margin to gross profit, the most directly comparable GAAP measure, for each of the periods indicated:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
	(in thousands)
Gross profit	$	19,236	$	13,759	$	52,208	$	38,242
Amortization of acquired intangibles		293		566		1,325		1,751
Stock-based compensation expense		141		46		266		135
Adjusted gross margin	$	19,670	$	14,371	$	53,799	$	40,128

• Free Cash Flow.  Free cash flow represents net cash provided by operating activities minus capital expenditures and capitalized software development costs. Free cash flow is a measure used by management to understand and evaluate our core operating performance and trends and to generate future operating plans. The exclusion of capital expenditures and amounts capitalized for internally-developed software facilitates comparisons of our operating performance on a period-to-period basis and excludes items that we do not consider to be indicative of our core operating performance. Free cash flow is not a measure calculated in accordance with GAAP. We believe that free cash flow provides useful information to investors and others in understanding and evaluating our operating results in the same manner as our management and board of directors. Nevertheless, our use of free cash flow has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our financial results as reported under GAAP. You should consider free cash flow alongside our other GAAP-based financial performance measures, net cash provided by operating activities, and our other GAAP financial results. The following table presents a reconciliation of free cash flow to net cash for operating activities, the most directly comparable GAAP measure, for each of the periods indicated:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands)
Net cash provided by operating activities	$	6,738		$	8,226		$	4,379		$	6,535
Capital expenditures		(832	)		(393	)		(1,337	)		(739	)
Capitalized software development costs		(1,542	)		(1,254	)		(4,586	)		(4,294	)
Free cash flow	$	4,364		$	6,579		$	(1,544	)	$	1,502

Additional Supplemental Non-GAAP Financial Measures

To supplement our consolidated financial statements, which are prepared and presented in accordance with GAAP, we provide investors with certain additional supplemental non-GAAP financial measures, including non-GAAP cost of revenue, non-GAAP gross profit, non-GAAP sales and marketing expense, non-GAAP research and development expense, non-GAAP general and administrative expense, non-GAAP total operating expenses, non-GAAP operating loss and non-GAAP net loss, which we collectively refer to as non-GAAP financial measures. These non-GAAP financial measures exclude all or a combination of the following (as reflected in the following reconciliation tables): stock-based compensation expense and amortization of acquired intangibles. The presentation of the non-GAAP financial measures is not intended to be considered in isolation or as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. We use these non-GAAP financial measures for financial and operational decision-making purposes and as a means to evaluate period-to-period comparisons. We believe that these non-GAAP financial measures provide useful information about our operating results, enhance the overall understanding of past financial performance and future prospects and allow for greater transparency with respect to metrics used by our management in its financial and operational decision making. While our non-GAAP financial measures are an important tool for financial and operational decision making and for evaluating our own operating results over different periods of time, you should consider our non-GAAP financial measures alongside our GAAP financial results.

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We exclude stock-based compensation expense because of varying available valuation methodologies, subjective assumptions and the variety of equity instruments that can impact our non-cash expense. We believe that providing non-GAAP financial measures that exclude stock-based compensation expense allow for more meaningful comparisons between our operating results from period to period. We believe that excluding the impact of amortization of acquired intangibles allows for more meaningful comparisons between operating results from period to period as the intangibles are valued at the time of acquisition and are amortized over a period of several years after the acquisition. Accordingly, we believe that excluding these expenses provides investors and management with greater visibility of the underlying performance of our business operations, facilitates comparison of our results with other periods and may also facilitate comparison with the results of other companies in our industry.

There are limitations in using non-GAAP financial measures because the non-GAAP financial measures are not prepared in accordance with GAAP, may be different from non-GAAP financial measures used by other companies and exclude expenses that may have a material impact upon our reported financial results. Further, stock-based compensation expense has been and will continue to be for the foreseeable future a significant recurring expense in our business and an important part of the compensation provided to our employees.

The following table reconciles our GAAP to non-GAAP numbers for the three and nine months ended September 30, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
	(in thousands)
Cost of revenue	$	8,076		$	6,173		$	22,969		$	17,324
Amortization of acquired intangibles		(293	)		(566	)		(1,325	)		(1,751	)
Stock-based compensation expense		(141	)		(46	)		(266	)		(135	)
Non-GAAP cost of revenue		7,642			5,561			21,378			15,438
Gross profit		19,236			13,759			52,208			38,242
Amortization of acquired intangibles		293			566			1,325			1,751
Stock-based compensation expense		141			46			266			135
Non-GAAP gross profit		19,670			14,371			53,799			40,128
Non-GAAP gross margin		72.0	%		72.1	%		71.6	%		72.2	%
Sales and marketing expense		11,626			8,605			33,589			25,659
Stock-based compensation expense		(691	)		(211	)		(1,250	)		(503	)
Non-GAAP sales and marketing		10,935			8,394			32,339			25,156
Research and development expense		5,626			3,917			16,082			10,560
Stock-based compensation expense		(416	)		(87	)		(738	)		(263	)
Non-GAAP research and development		5,210			3,830			15,344			10,297
General and administrative expense		6,375			3,666			16,640			10,252
Amortization of acquired intangibles		(560	)		(224	)		(1,562	)		(701	)
Stock-based compensation expense		(1,555	)		(415	)		(2,618	)		(1,264	)
Non-GAAP general and administrative		4,260			3,027			12,460			8,287
Total operating expenses		23,627			16,188			66,311			46,471
Amortization of acquired intangibles		(560	)		(224	)		(1,562	)		(701	)
Stock-based compensation expense		(2,662	)		(713	)		(4,606	)		(2,030	)
Non-GAAP total operating expenses	$	20,405		$	15,251		$	60,143		$	43,740
Operating loss	$	(4,391	)	$	(2,429	)	$	(14,103	)	$	(8,229	)
Amortization of acquired intangibles		853			790			2,887			2,452
Stock-based compensation expense		2,803			759			4,872			2,165
Non-GAAP operating loss	$	(735	)	$	(880	)	$	(6,344	)	$	(3,612	)
Net loss	$	(4,231	)	$	(2,629	)	$	(13,870	)	$	(8,658	)
Amortization of acquired intangibles		853			790			2,887			2,452
Stock-based compensation expense		2,803			759			4,872			2,165
Non-GAAP net loss	$	(575	)	$	(1,080	)	$	(6,111	)	$	(4,041	)

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Liquidity and Capital Resources

To date, we have financed our operations primarily through cash from operating activities, along with equity issuances and debt financing arrangements.  Our principal source of liquidity is cash and cash equivalents and investments totaling $47.7 million as of September 30, 2017, which includes the remaining net proceeds from our initial and follow-on public offerings completed in September 2016 and April 2017, respectively. We received net proceeds of $66.1 million and $9.9 million, after deducting underwriting discounts and offering expenses paid or payable by us from our initial and follow-on public offering, respectively. Our negative working capital balance as of September 30, 2017 was primarily the result of a deferred revenue balance of $63.0 million.

We believe that our cash balances, our available borrowings under our revolving line of credit and the cash flows generated by our operations will be sufficient to satisfy our anticipated cash needs for working capital and capital expenditures for at least the next 12 months. However, our belief may prove to be incorrect, and we could utilize our available financial resources sooner than we currently expect. Our future capital requirements and the adequacy of available funds will depend on many factors, including those set forth in the section of this Quarterly Report on Form 10-Q titled “Risk Factors.” We cannot assure you that we will be able to raise additional capital on acceptable terms or at all. In addition, if we fail to meet our operating plan during the next 12 months, our liquidity could be adversely affected.

Sources of Funds

Initial and Follow-On Public Offerings

On September 21, 2016, we closed our initial public offering in which we issued and sold 6,250,000 shares of common stock at a public offering price of $12.00 per share for net proceeds of approximately $66.1 million, after deducting underwriting discounts and commissions and offering expenses paid by us.

On April 4, 2017, we closed a follow-on public offering in which we issued and sold 553,825 shares of common stock at a public offering price of $19.85 per share for net proceeds of approximately $9.9 million, after deducting underwriting discounts and commissions and offering expenses paid by us.

Credit Facility

In June 2015, we entered into a loan and security agreement with Western Alliance Bank (formerly known as Bridge Bank) to provide a secured revolving line of credit that allows us to borrow up to $10.0 million for working capital and general business requirements. In February 2016, we entered into an amendment of our loan and security agreement with Western Alliance Bank to (1) increase the capacity of our revolving line of credit by $5.0 million to $15.0 million and (2) set the minimum prime rate based on which interest due is calculated at 3.25%. No other changes were made to the loan and security agreement. The loan and security agreement, as amended, allows us to borrow up to $15.0 million for working capital and general business requirements. Amounts outstanding under the line of credit bear interest at the prime rate plus 0.75% with accrued interest payable on a monthly basis and outstanding and unpaid principal due upon maturity of the credit facility in June 2018. As of September 30, 2017, the total amount available to be borrowed by us was $15.0 million and we had no outstanding balance on the revolving line of credit.

Cash Flows

The following table summarizes our cash flows for the periods indicated (in thousands):

	Nine Months Ended September 30,
	2017			2016
	(in thousands)
Cash and cash equivalents at beginning of period	$	60,765		$	8,578
Cash provided by operating activities		4,379			6,535
Cash used in investing activities		(50,613	)		(5,033	)
Cash provided by financing activities		9,409			52,056
Effects of exchange rates on cash		(312	)		160
Cash and cash equivalents at end of period	$	23,628		$	62,296

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Uses of Funds

Our historical uses of cash have primarily consisted of cash used for operating activities, such as expansion of our sales and marketing operations, research and development activities and other working capital needs.

Operating Activities

Our net loss and cash flows provided by operating activities are significantly influenced by our investments in headcount and infrastructure to support our growth, marketing and sponsorship expenses, and our ability to bill and collect in a timely manner. Our net loss has been significantly greater than our use of cash for operating activities due to the inclusion of non-cash expenses and charges.

Operating activities provided $4.4 million in cash in the nine months ended September 30, 2017, primarily from $5.2 million in cash used in operations as a result of changes in operating assets and liabilities, which was increased by $13.1 million of non-cash operating expenses and partially offset by our net loss of $13.9 million. Specifically, we recognized non-cash charges aggregating to $7.6 million for depreciation and amortization of intangible assets, capitalized software development costs and property and equipment and $4.8 million for stock-based compensation and an increase of $0.6 million for our bad debt and sales return provision. The change in operating assets and liabilities reflected a $7.8 million increase in deferred revenue, a $0.8 million increase in accounts payable as a result of timing of payments made to vendors, a $2.3 million increase in accrued employee related expenses due to timing of payments to employees and a $0.5 million increase in other liabilities. These increases were partially offset by a $3.6 million increase in accounts receivable, $1.6 million increase in prepaid expenses for upfront payments made for prepaid software and insurance, and a $1.0 million increase in other assets.

Operating activities provided $6.5 million in cash in the nine months ended September 30, 2016, primarily from $7.4 million in cash provided by operations as a result of changes in operating assets and liabilities, which was increased by $7.8 million of non-cash operating expenses and partially offset by our net loss of $8.7 million. Specifically, we recognized non-cash charges aggregating $5.7 million for depreciation and amortization of intangible assets, capitalized software development costs and property and equipment and $2.1 million for stock-based compensation, an increase of $0.1 million for our accounts receivable provision and an increase of $0.1 million related to disposal of assets, which was offset by a decrease of $0.2 million in our deferred tax liability balance. The change in operating assets and liabilities reflected a $8.6 million increase in deferred revenue, a $0.3 million increase in accounts payable, a $1.6 million increase in accrued employee related expenses and a $0.3 million increase in accrued expenses. These increases were partially offset by a $0.4 million increase in accounts receivables, a $1.7 million increase in other assets due to timing of payments made for deferred initial public offering costs and commissions and a $1.2 million increase in pre-paid expenses.

Investing Activities

Our investing activities consist primarily of capital expenditures for capitalized software development costs, business acquisition and property and equipment expenses.

Investing activities used $50.6 million in cash in the nine months ended September 30, 2017, primarily from our purchase of IDV for $21.2 million, our investment in software development of $4.6 million, our purchase of property and equipment of $1.3 million, a $0.3 million change in restricted cash and $30.0 million in purchases of short-term investments. This was offset by cash provided of $0.8 million attributed to landlord reimbursements for tenant improvements in our Burlington, Massachusetts office lease and maturities of our short-term investments of $6.0 million.

Investing activities used $5.0 million in cash in the nine months ended September 30, 2016, primarily from our investment in software development of $4.3 million and property and equipment of $0.7 million.

Financing Activities

Cash generated by financing activities includes proceeds from the issuance of common stock as a result of our follow-on offering and upon the exercise of employee stock options and contributions from our employee stock purchase plan. Cash used in financing activities includes deferred initial public offering costs, costs associated with our follow-on public offering and payments on capital leases, notes payable and repayments of debt under our credit facilities.

Financing activities provided $9.4 million of cash in the nine months ended September 30, 2017, which reflects proceeds of $10.4 million from our follow-on public offering, $1.5 million from the issuance of stock under our employee stock purchase plan and proceeds of $2.1 million from the exercise of stock options. This amount was offset by a $3.8 million payment for contingent consideration attributed to our purchase of IDV and $0.9 million of costs paid in connection with our initial and follow-on public offerings.

36

Financing activities provided $52.1 million of cash in the nine months ended September 30, 2016, which reflects proceeds of $69.8 million from our initial public offering, net of underwriter’s discount and commissions, $0.7 million from the exercise of stock options and proceeds from our line of credit of $9.5 million. These amounts were offset by payments of $19.5 million on our line of credit, payment of $5.0 million on our term loan, $1.4 million of costs paid in connection with our initial public offering and payment of notes payable related to the Vocal Limited acquisition of $2.0 million.

Critical Accounting Policies

Our condensed consolidated financial statements are prepared in accordance with GAAP. The preparation of these condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses and related disclosures. We evaluate our estimates and assumptions on an ongoing basis. Our estimates are based on historical experience and various other assumptions that we believe to be reasonable under the circumstances. Our actual results could differ from these estimates.

We believe that the assumptions and estimates associated with revenue recognition, deferred revenue, business combinations, goodwill, software development costs and stock-based compensation have the greatest potential impact on our condensed consolidated financial statements. Therefore, we consider these to be our critical accounting policies.

There have been no material changes to our critical accounting policies as compared to the critical accounting policies disclosed in the Annual Report 10-K filed with the SEC on March 23, 3017.

Recently Issued Accounting Pronouncements

See Note 2 of the notes to our unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q for a summary of recently issued and adopted accounting pronouncements.

Contractual Obligations and Commitments

As of September 30, 2017, there were no material changes in our commitments under contractual obligations except for scheduled payments from the ongoing business, as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2016, except as set forth below. In June 2017, we entered into a new lease for our research and development office in Beijing, China that will increase our future minimum lease payments beginning in July 2017 by $0.8 million over the next two years. In addition, in June 2017, we entered into a new lease for our sales office in Maidenhead, United Kingdom that will increase our future minimum lease payments beginning in July 2017 by $0.2 million over the next four years. Finally, as a result of the acquisition of IDV Solutions LLC, we inherited leases resulting in minimum lease payments totaling $1.4 million which will be paid over the next seven years.

Off-Balance Sheet Arrangements

We do not have any relationships with unconsolidated entities or financial partnerships, including entities sometimes referred to as structured finance or special purpose entities that were established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. We do not engage in off-balance sheet financing arrangements. In addition, we do not engage in trading activities involving non-exchange traded contracts.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

Market risk represents the risk of loss that may impact our financial position due to adverse changes in financial market prices and rates. Our market risk exposure is primarily the result of fluctuations in interest rates and foreign exchange rates as well as, to a lesser extent, inflation.

Interest Rate Risk

We are exposed to interest rate risk in the ordinary course of our business. Our cash includes cash in readily available checking and money market accounts and marketable securities. These securities are not dependent on interest rate fluctuations that may cause the principal amount of these assets to fluctuate.

We had cash and cash equivalents of $23.6 million as of September 30, 2017, which consists of cash, money market funds and U.S. government securities. To date, fluctuations in interest income have not been significant. We have no outstanding debt subject to interest rate risk as of September 30, 2017. Amounts outstanding under our revolving line of credit carry a variable interest rate of the prime rate, but in no event less than 3.25%, plus 0.75%. As of September 30, 2017, the applicable prime rate was 4.25%. We monitor our cost of borrowing under our revolving line of credit, if any, taking into account our funding requirements, and our expectation for short-term rates in the future.

37

We do not enter into investments for trading or speculative purposes and have not used any derivative financial instruments to manage our interest rate risk exposure. Although our credit facility and term loan have variable interest rates, a hypothetical 10% change in interest rates during any of the periods presented would not have had a material impact on our financial statements.

Foreign Currency Exchange Risk

We have foreign currency risks related to our revenue and operating expenses denominated in currencies other than our functional currency, the U.S. dollar, principally British pounds and Swedish kronor. Movements in foreign currencies in which we transact business could significantly affect future net earnings. We do not currently engage in any hedging activity to reduce our potential exposure to currency fluctuations, although we may choose to do so in the future. A hypothetical 10% change in foreign exchange rates during any of the periods presented would not have had a material impact on our consolidated financial statements. As our international operations grow, we will continue to reassess our approach to manage our risk relating to fluctuations in foreign currency rate.

Inflation Risk

We do not believe that inflation has had a material effect on our business, financial condition or results of operations. If our costs were to become subject to significant inflationary pressures, we may not be able to fully offset such higher costs through price increases. Our inability or failure to do so could harm our business, financial condition and results of operations.

Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

We maintain “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act, that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure.

Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on such evaluation, our principal executive officer and principal financial officer have concluded that as of such date, our disclosure controls and procedures were effective at a reasonable.

Changes in Internal Control

On January 27, 2017, the Company completed the acquisition of IDV Solutions, LLC, or IDV. See Note 8, "Business Combinations," to the unaudited interim consolidated financial statements included in this Quarterly report on Form 10-Q for a discussion of the acquisition and related financial data. The Company is in the process of integrating IDV and the Company’s internal controls over financial reporting.  As a result of these integration activities, certain controls will be evaluated and may be changed.  Excluding the IDV acquisition, there was no change in our internal control over financial reporting during the period covered by this Quarterly Report on Form 10-Q that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations on Effectiveness of Controls

Our management, including our principal executive officer and principal financial officer, does not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent or detect all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. The design of any system of controls also 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 the 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.

38

PART II—OTHER INFORMATION

Item 1. Legal Proceedings.

From time to time we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our business. We are not presently a party to any legal proceedings that, if determined adversely to us, would individually or taken together have a material adverse effect on our business, operating results, financial condition or cash flows. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.

Item 1A. Risk Factors.

We operate in a rapidly changing environment that involves a number of risks which could materially affect our business, financial condition or future results, some of which are beyond our control. In addition to the other information set forth in this Quarterly Report on Form 10-Q, the risks and uncertainties that we believe are most important for you to consider are discussed in Part I-Item 1A under the heading “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2016, as filed with the SEC on March 23, 2017.  During the three months ended September 30, 2017, there were no material changes to the risk factors that were disclosed in our Annual Report on Form 10-K for the year ended December 31, 2016.

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

(a) Recent Sales of Unregistered Equity Securities

None

(b) Use of Proceeds

Our initial public offering of common stock was effected through a Registration Statement on Form S-1 (File No. 333-2133217), which was declared or became effective on September 16, 2016. There has been no material change in the planned use of proceeds from our initial public offering as described in our final prospectus filed with the SEC pursuant to Rule 424(b) and other periodic reports previously filed with the SEC. Consistent with such prior disclosures, we used $23.5 million in cash to acquire Svensk Krisledning AB and IDV Solutions, LLC.

(c) Issuer Purchase of Equity Securities

None.

Item 3. Defaults Upon Senior Securities.

None

Item 4. Mine Safety Disclosures.

Not applicable

Item 5. Other Information.

Restricted Stock Unit Award Agreement

On August 1, 2017, the compensation committee of our board of directors (the “Compensation Committee”), approved a form of Restricted Stock Unit Award Agreement (the “RSU Award Agreement”) for restricted stock units to be issued from time to time under our 2016 Equity Incentive Plan. Under the terms of the RSU Award Agreement, we may issue the right to receive, upon vesting and the satisfaction of any required tax withholding obligation, shares of common stock, which will become vested as set forth in the applicable award on the basis of one share of common stock for each restricted stock unit, provided that the grantee has remained continuously employed by us from the grant date to such vesting date. Restricted stock units may vest based on the passage of time and/or based on the achievement of such performance-based criteria as are listed in our 2016 Equity Incentive Plan. The form of RSU Award Agreement is attached hereto as Exhibit 10.1 and is incorporated herein by reference.

39

Restricted Stock Unit Awards

In connection with the approval of the RSU Award Agreement, the Compensation Committee approved the grant of restricted stock units to certain executive officers, including Jaime Ellertson, Joel Rosen and Elliot J. Mark, who are our named executive officers, and Kenneth S. Goldman, who is our principal financial officer. Certain of the restricted stock units are subject to time-based vesting and vest in annual installments over three years from the date of grant, and the remainder are subject to market-based vesting and vest on our achieving certain stock price thresholds which range from $35 to $55 per share for 30 consecutive trading days as reported by The Nasdaq Stock Market, LLC. Messrs. Ellertson, Rosen, Mark and Goldman were granted 50,000, 17,000, 17,000 and 19,000 restricted stock units subject to time-based vesting, respectively, and they were granted 50,000, 17,000, 17,000 and 19,000 restricted stock units subject to market-based vesting, respectively.

2017 Bonus Plan

The Compensation Committee approved the adoption of our 2017 Management Incentive Plan (the “Bonus Plan”) for our executive officers, including Messrs. Ellertson, Rosen, Mark and Goldman. The Bonus Plan is designed to award cash incentive payments for performance in 2017 to participants based on the achievement of our-wide performance goals set by the compensation committee. Bonuses under the Bonus Plan will be measured as of December 31, 2017 and are expected to be paid in the first quarter of 2018. The annual cash targets for Messrs. Ellertson, Rosen, Mark and Goldman under the Bonus Plan are set at $206,000, $93,000, $105,000 and $116,000, respectively, 75% of which is subject to the achievement of certain sales, customer retention and growth targets and 25% of which is subject to the achievement of other company objectives. Messrs. Ellertson, Rosen, Mark and Goldman are eligible to receive more than 100% of their target bonuses if our performance exceeds the targets set forth in the Bonus Plan.

The foregoing description of the terms of the Bonus Plan is qualified in its entirety by reference to the Bonus Plan, a copy of which is attached hereto as Exhibit 10.4 and is incorporated herein by reference.

40

Item 6. Exhibits.

3.1(1)	Amended and Restated Certificate of Incorporation of Everbridge, Inc.
3.2(2)	Amended and Restated Bylaws of Everbridge, Inc.
10.1(3)+	Form of Restricted Stock Unit Award Agreement under the Everbridge, Inc. 2016 Equity Incentive Plan, as amended.
10.2(4)+	Employment Agreement, dated as of June 22, 2017, by and between Everbridge, Inc. and Javier Colado.
10.3(5)+	Offer Letter, dated as of July 24, 2017, by and between Everbridge, Inc. and Robert Hughes.
10.4(6)+	2017 Bonus Plan of Everbridge, Inc.
31.1*	Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**	Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2**	Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
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

⁽¹⁾ Previously filed as Exhibit 3.1 to the Registrant’s Current Report on Form 8-K (File No. 001-37874), filed with the Securities and Exchange on September 21, 2016, and incorporated herein by reference.

⁽²⁾ Previously filed as Exhibit 3.2 to the Registrant’s Current Report on Form 8-K (File No. 001-37874), filed with the Securities and Exchange on September 21, 2016, and incorporated herein by reference.

⁽³⁾ Previously filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q (File No. 001-37874), filed with the Securities and Exchange on August 14, 2017, and incorporated herein by reference.

⁽⁴⁾ Previously filed as Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q (File No. 001-37874), filed with the Securities and Exchange on August 14, 2017, and incorporated herein by reference.

⁽⁵⁾ Previously filed as Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-37874), filed with the Securities and Exchange on August 1, 2017, and incorporated herein by reference.

⁽⁶⁾ Previously filed as Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q (File No. 001-37874), filed with the Securities and Exchange on August 14, 2017, and incorporated herein by reference.

* Filed herewith.

** This certification is deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

+ Indicates management contract or compensatory plan.

41

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.

	Everbridge, Inc.
Date: November 7, 2017	By:	/s/ Jaime Ellertson
		Jaime Ellertson
		Chief Executive Officer and Chairman of the Board of Directors
Date: November 7, 2017	By:	/s/ Kenneth S. Goldman
		Kenneth S. Goldman
		Senior Vice President and Chief Financial Officer

42

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Jaime Ellertson, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Everbridge, 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(s) 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)) 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) 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

(c) 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(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

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

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

Date: November 7, 2017	By:	/s/ Jaime Ellertson
		Name: Jaime Ellertson
		Title: Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Kenneth S. Goldman, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Everbridge, 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(s) 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)) 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) 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

(c) 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(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

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

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

Date: November 7, 2017	By:	/s/ Kenneth S. Goldman
		Name: Kenneth S. Goldman
		Title: Senior Vice President and Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended, (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350), I, Jaime Ellertson, Chief Executive Officer of Everbridge, Inc., do hereby certify that, to the best of my knowledge, the Quarterly Report on Form 10-Q of Everbridge, Inc. for the quarter ended September 30, 2017 (the “Report”):

(1) fully complies with the requirements of Section 13(a) or Section 15(d) of the Exchange Act; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of Everbridge, Inc. for the period presented herein.

Date: November 7, 2017	By:	/s/ Jaime Ellertson
		Name: Jaime Ellertson
		Title: Chief Executive Officer

This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of Everbridge, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in such filing.

EX-32.2

Exhibit 32.2

CERTIFICATION

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended, (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350), I, Kenneth S. Goldman, Senior Vice President and Chief Financial Officer of Everbridge, Inc., do hereby certify that, to the best of my knowledge, the Quarterly Report on Form 10-Q of Everbridge, Inc. for the quarter ended September 30, 2017 (the “Report”):

(1) fully complies with the requirements of Section 13(a) or Section 15(d) of the Exchange Act; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of Everbridge, Inc. for the period presented herein.

Date: November 7, 2017	By:	/s/ Kenneth S. Goldman
		Name: Kenneth S. Goldman
		Title: Senior Vice President and Chief Financial Officer

This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of Everbridge, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in such filing.

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Nov. 01, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Trading Symbol	EVBG
Entity Registrant Name	EVERBRIDGE, INC.
Entity Central Index Key	0001437352
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		28,254,691

XML

Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 23,628,000	$ 60,765,000
Restricted cash	297,000
Short-term investments	24,029,000	0
Accounts receivable, net	22,273,000	17,812,000
Prepaid expenses	3,564,000	1,770,000
Other current assets	2,780,000	2,536,000
Total current assets	76,571,000	82,883,000
Property and equipment, net	2,844,000	2,923,000
Capitalized software development costs, net	9,672,000	8,792,000
Goodwill	31,343,000	9,676,000
Intangible assets, net	9,499,000	3,940,000
Other assets	190,000	108,000
Total assets	130,119,000	108,322,000
Current liabilities:
Accounts payable	3,223,000	2,434,000
Accrued payroll and employee related liabilities	9,778,000	7,456,000
Accrued expenses	2,003,000	1,957,000
Deferred revenue	63,040,000	51,388,000
Contingent liabilities	1,705,000
Other current liabilities	614,000	548,000
Total current liabilities	80,363,000	63,783,000
Long-term liabilities:
Deferred revenue, noncurrent	1,455,000	1,246,000
Deferred tax liabilities	594,000	494,000
Other long term liabilities	533,000	447,000
Total liabilities	82,945,000	65,970,000
Commitments and contingencies
Stockholders' equity:
Preferred stock, par value $0.001, 10,000,000 shares authorized, no shares issued or outstanding as of September 30, 2017 and December 31, 2016, respectively
Common stock, $0.001 par value, 100,000,000 shares authorized, 28,203,369 and 27,150,674 shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively	28,000	27,000
Additional paid-in capital	150,614,000	132,246,000
Accumulated deficit	(103,488,000)	(89,618,000)
Accumulated other comprehensive income (loss)	20,000	(303,000)
Total stockholders’ equity	47,174,000	42,352,000
Total liabilities and stockholders’ equity	$ 130,119,000	$ 108,322,000

XML

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	28,203,369	27,150,674
Common stock, shares outstanding	28,203,369	27,150,674

XML

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Revenue	$ 27,312	$ 19,932	$ 75,177	$ 55,566
Cost of revenue	8,076	6,173	22,969	17,324
Gross profit	19,236	13,759	52,208	38,242
Operating expenses:
Sales and marketing	11,626	8,605	33,589	25,659
Research and development	5,626	3,917	16,082	10,560
General and administrative	6,375	3,666	16,640	10,252
Total operating expenses	23,627	16,188	66,311	46,471
Operating loss	(4,391)	(2,429)	(14,103)	(8,229)
Other income (expense), net:
Interest and investment income	106		234
Interest expense	(2)	(195)	(5)	(506)
Other income (expense), net	(23)	30	(61)	2
Total other income (expense), net	81	(165)	168	(504)
Loss before income taxes	(4,310)	(2,594)	(13,935)	(8,733)
(Provision for) benefit from income taxes	79	(35)	65	75
Net loss	$ (4,231)	$ (2,629)	$ (13,870)	$ (8,658)
Net loss per share attributable to common stockholders:
Basic	$ (0.15)	$ (0.18)	$ (0.50)	$ (0.66)
Diluted	$ (0.15)	$ (0.18)	$ (0.50)	$ (0.66)
Weighted-average common shares outstanding:
Basic	28,100,172	14,772,006	27,719,519	13,124,480
Diluted	28,100,172	14,772,006	27,719,519	13,124,480

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (4,231)	$ (2,629)	$ (13,870)	$ (8,658)
Other comprehensive income (loss):
Foreign currency translation adjustment, net of taxes	197	66	323	(300)
Total comprehensive loss	$ (4,034)	$ (2,563)	$ (13,547)	$ (8,958)

XML

Consolidated Statements of Stockholders' Equity (unaudited) - 9 months ended Sep. 30, 2017 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2016	$ 42,352	$ 27	$ 132,246	$ (89,618)	$ (303)
Balance, shares at Dec. 31, 2016		27,150,674
Stock-based compensation	4,872		4,872
Issuance of common stock in follow-on offering, net	9,870	$ 1	9,869
Issuance of common stock in follow-on offering, net, shares		553,825
Exercise of stock options	$ 2,087		2,087
Exercise of stock options, shares	370,084	370,084
Issuance of shares under employee stock purchase plan	$ 1,540		1,540
Issuance of shares under employee stock purchase plan, shares		128,786
Other comprehensive income	323				323
Net loss	(13,870)			(13,870)
Balance at Sep. 30, 2017	$ 47,174	$ 28	$ 150,614	$ (103,488)	$ 20
Balance, shares at Sep. 30, 2017		28,203,369

XML

Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net loss	$ (13,870)	$ (8,658)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	7,646	5,675
Loss on disposal of assets	15	74
Deferred income taxes	62	(224)
Non-cash interest expense on line of credit and term loan		67
Non-cash investment income	(74)
Provision for doubtful accounts and sales reserve	588	95
Stock-based compensation	4,838	2,127
Increase (decrease) in operating assets and liabilities:
Accounts receivable	(3,591)	(391)
Prepaid expenses	(1,552)	(1,188)
Other assets	(980)	(1,743)
Accounts payable	820	251
Accrued payroll and employee related liabilities	2,263	1,558
Accrued expenses	(54)	305
Deferred revenue	7,801	8,605
Other liabilities	467	(18)
Net cash provided by operating activities	4,379	6,535
Cash flows from investing activities:
Capital expenditures	(1,337)	(739)
Proceeds from sale leaseback transaction	794
Payments for acquisition of business, net of acquired cash	(21,235)
Change in restricted cash	(294)
Purchase of short-term investments	(29,955)
Maturities of short-term investments	6,000
Additions to capitalized software development costs	(4,586)	(4,294)
Net cash used in investing activities	(50,613)	(5,033)
Cash flows from financing activities:
Proceeds from line of credit		9,500
Payments on line of credit		(19,500)
Payment on term loan		(5,000)
Payments of issuance costs relating to the line of credit and term loan		(19)
Principal payments on capital leases		(58)
Proceeds from public offering, net of underwriters discount and commissions	10,444	69,750
Payments of public offering costs	(872)	(1,372)
Payments of debt issuance costs	(40)
Payment of contingent consideration	(3,750)
Payments on notes payable		(2,018)
Proceeds from employee stock purchase plan	1,540
Proceeds from option exercises	2,087	748
Proceeds from exercise of warrants		25
Net cash provided by financing activities	9,409	52,056
Effect of exchange rates on cash and cash equivalents	(312)	160
Net (decrease) increase in cash and cash equivalents	(37,137)	53,718
Cash and cash equivalents—beginning of period	60,765	8,578
Cash and cash equivalents—end of period	23,628	62,296
Supplemental disclosures of cash flow information:
Interest		488
Taxes, net of refunds received	25
Supplemental disclosure of non-cash activities:
Capitalized assets included in accounts payable and accrued expenses	24	132
Deferred offering costs in accounts payable and accrued expenses		885
Debt issuance costs included in accounts payable and accrued expenses	100
Stock-based compensation capitalized for software development	$ 34	$ 38

XML

Business and Nature of Operations

9 Months Ended

Sep. 30, 2017

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Business and Nature of Operations

(1) Business and Nature of Operations

Everbridge, Inc., a Delaware corporation (together with its wholly-owned subsidiaries, referred to as “Everbridge” or the “Company”), is a global software company that provides critical event management and enterprise safety applications that enable customers to automate and accelerate the process of keeping people safe and businesses running during critical events. The Company’s SaaS-based platform enables the Company’s customers to quickly and reliably deliver messaging to a large group of people during critical situations. The Company’s enterprise applications, such as Mass Notification, Incident Management, IT Alerting, Safety Connection, Community Engagement, CareConverge, Crisis Commander and Visual Command Center, automate numerous critical event management and enterprise safety processes. The Company generates revenue primarily from subscription fees to the Company’s enterprise applications. The Company has operations in the United States, Sweden, the United Kingdom and China.

Initial and Follow-On Public Offering

On September 21, 2016, the Company completed an initial public offering (“IPO”) in which the Company sold 6,250,000 shares of its common stock at the public offering price of $12.00 per share. The Company received net proceeds of $66.1 million, after deducting underwriting discounts and commissions and offering expenses paid and payable by the Company, from sales of its shares in the IPO.   

In April 2017, the Company completed a follow-on public offering in which the Company sold 553,825 shares of its common stock, which included 26,825 shares sold pursuant to the exercise by the underwriters of an option to purchase additional shares, at a public offering price of $19.85 per share. In addition, 3,162,164 shares of the Company’s common stock were sold by selling stockholders of the Company, which included 73,000 shares sold pursuant to the exercise of employee stock options by certain selling stockholders. The Company received net proceeds of $9.9 million, after deducting underwriting discounts and commissions and offering expenses paid by the Company. The Company did not receive any proceeds from the sales by the selling stockholders.

XML

Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2017

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

(2) Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

The condensed consolidated balance sheet as of December 31, 2016, included herein, was derived from the audited financial statements as of that date, but does not include all disclosures including certain notes required by U.S. GAAP on an annual reporting basis.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year 2017 or any future period.

Principles of Consolidation

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

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amount of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Assets and liabilities which are subject to judgment and use of estimates include allowances for doubtful accounts, the fair value of assets acquired and liabilities assumed in business combinations, the recoverability of goodwill and long-lived assets, valuation allowances with respect to deferred tax assets, useful lives associated with property and equipment and intangible assets, contingencies, and the valuation and assumptions underlying stock-based compensation. On an ongoing basis, the Company evaluates its estimates compared to historical experience and trends, which form the basis for making judgments about the carrying value of assets and liabilities. In addition, the Company engaged valuation specialists to assist with management’s determination of the valuation of its fair values of assets acquired and liabilities assumed in business combinations.

Concentrations of Credit and Business Risk

Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash and cash equivalents and accounts receivable.

The Company maintains cash balances at several banks. Accounts located in the United States are insured by the Federal Deposit Insurance Corporation, or FDIC, up to $250,000. From time to time, balances may exceed amounts insured by the FDIC. The Company has not experienced any losses in such amounts.

The Company’s accounts receivable are generally unsecured and are derived from revenue earned from customers located in the United States, Sweden and the United Kingdom and are generally denominated in U.S. dollars, Swedish kronor or British pounds. Each reporting period, the Company reevaluates each customer’s ability to satisfy credit obligations and maintains an allowance for doubtful accounts based on the evaluations. No single customer comprised more than 10% of the Company’s total revenue or accounts receivable for the three or nine months ended September 30, 2017 and 2016.  

Cash and Cash Equivalents

The Company considers all highly liquid instruments with original maturities of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents are recorded at cost, which approximates fair value. As of September 30, 2017, $19.5 million of the Company’s cash equivalents were invested in money market funds and U.S. government securities.

Short-Term Investments

Short-term investments consist of highly liquid investments, primarily commercial paper, U.S. Treasury and U.S. agency securities, with maturities over three months from the date of purchase. Debt securities, money market funds and U.S. agency bonds that the Company has the ability and positive intent to hold to maturity are carried at amortized cost, which approximates fair value. Short-term investments of $24.0 million and none at September 30, 2017 and December 31, 2016, respectively, were classified as held-to-maturity and primarily comprised of U.S. treasury and U.S. agency securities. All held-to-maturity securities at September 30, 2017 have maturity dates within one year.

Significant Accounting Policies

There have been no changes to the Company’s significant accounting policies described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

Recently Issued Accounting Guidance Not Yet Adopted

In January 2017, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or (“ASU”), ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This guidance eliminates Step 2 from the goodwill impairment test, instead requiring an entity to recognize a goodwill impairment charge for the amount by which the goodwill carrying amount exceeds the reporting unit’s fair value. This guidance is effective for interim and annual goodwill impairment tests in fiscal years beginning after December 15, 2019, and early adoption is permitted. This guidance must be applied on a prospective basis. The Company expects to adopt this guidance for interim and annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of this guidance to have a material impact on its financial position, results of operations or cash flows.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. This guidance narrows the definition of a business. This standard provides guidance to assist entities with evaluating when a set of transferred assets and activities is a business. This guidance is effective for interim and annual reporting periods beginning after December 15, 2017, and early adoption is permitted. This guidance must be applied prospectively to transactions occurring within the period of adoption. The Company expects to adopt this guidance effective January 1, 2018. The Company does not expect the adoption of this guidance to have a material impact on its financial position, results of operations or cash flows.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. This guidance requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. As a result, restricted cash will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The new guidance is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, and the new guidance is to be applied retrospectively. The Company does not expect the adoption of this guidance to have a material impact on its cash flows.

In September 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This guidance clarifies the presentation requirements of eight specific issues within the statement of cash flows. The new guidance is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. The adoption of this guidance is not expected to have a significant impact on the Company’s financial statements, as the Company's treatment of the relevant affected items within its consolidated statement of cash flows is consistent with the requirements of this guidance.

In February 2016, the FASB issued ASU 2016-02, Leases, to require lessees to recognize most leases on the balance sheet, while recognition on the statement of operations will remain similar to current lease accounting. The ASU also eliminates real estate-specific provisions and modifies certain aspects of lessor accounting. The ASU is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted. Adoption of the ASU is modified retrospective. We are still in the process of evaluating the ASU but currently plan to adopt the ASU on January 1, 2019

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which amends the existing accounting standards for revenue recognition. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which delays the effective date of ASU 2014-09 by one year. The FASB also agreed to allow entities to choose to adopt the standard as of the original effective date. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies the implementation guidance on principal versus agent considerations. The guidance includes indicators to assist an entity in determining whether it controls a specified good or service before it is transferred to the customers. The new revenue recognition standard will be effective for the Company effective January 1, 2018. The new standard permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the modified retrospective method).

The Company currently anticipates adopting the standard using the modified retrospective method.

The Company is continuing to assess the impact of adopting ASU 2014-09 on its financial position, results of operations and related disclosures and has not yet determined whether the effect of the revenue portion will be material. Additionally, as the Company continues to assess the new standard along with industry trends and additional interpretive guidance, the Company may adjust its implementation plan accordingly.

The Company believes that the new standard will impact the following policies and disclosures:

• allocation of subscription and support revenue across different platforms and to professional services revenue;

• required disclosures including information about the transaction price and when the Company expects to recognize revenue; and

• accounting for deferred sales commissions including costs that qualify for deferral and the amortization period.

The sales commission accounting under the new standard is significantly different than the Company's current commission capitalization policy. The new standard will result in additional types of costs being capitalized. Additionally, all amounts capitalized are expected to be amortized over a period that is longer than the Company's current policy of amortizing the deferred amounts over the specific revenue contract terms. While the Company has not yet finalized its assessment of the impact will have on its financial position and results of operations, the Company believes it will be material.

The Company does not expect the adoption of ASU 2014-09 to have any impact on its operating cash flows.

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Accounts Receivable, Net

9 Months Ended

Sep. 30, 2017

Accounts Receivable Net [Abstract]

Accounts Receivable, Net

(3) Accounts Receivable, Net

Accounts receivable, net is as follows (in thousands):

	As of			As of
	September 30, 2017			December 31, 2016
Accounts receivable	$	23,192		$	18,231
Allowance for doubtful accounts and sales reserve		(919	)		(419	)
Net accounts receivable	$	22,273		$	17,812

Bad debt expense and sales credits reserve were $0.2 million and $0.6 million for the three and nine months ended September 30, 2017, respectively, and $0.1 million and $0.1 million for the three and nine months ended September 30, 2016, respectively.  

The following table summarizes the changes in the allowance for doubtful accounts (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Balance, beginning of period	$	(610	)	$	(377	)	$	(374	)	$	(336	)
Additions		(195	)		(8	)		(484	)		(95	)
Write-offs		11			33			64			79
Balance, end of period	$	(794	)	$	(352	)	$	(794	)	$	(352	)

The following table summarizes the changes in the sales reserve (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Balance, beginning of period	$	(116	)	$	(45	)	$	(45	)	$	(45	)
Additions		(24	)		—			(104	)		—
Write-offs		15			—			24			—
Balance, end of period	$	(125	)	$	(45	)	$	(125	)	$	(45	)

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Property and Equipment

9 Months Ended

Sep. 30, 2017

Property Plant And Equipment [Abstract]

Property and Equipment

(4) Property and Equipment

Property and equipment consisted of the following (in thousands):

	Useful life in years		As of  September 30, 2017			As of  December 31, 2016
Furniture and equipment		5	$	1,794		$	928
System hardware		5		1,623			3,320
Office computers		3		2,285			1,777
Computer and system software		3		1,186			1,478
				6,888			7,503
Less accumulated depreciation and amortization				(4,044	)		(4,580	)
Property and equipment, net			$	2,844		$	2,923

Depreciation and amortization expense for property and equipment was $0.4 million and $1.5 million for the three and nine months ended September 30, 2017, respectively, and $0.4 million and $1.2 million for the three and nine months ended September 30, 2016, respectively. 

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Capitalized Software Development Costs

9 Months Ended

Sep. 30, 2017

Research And Development [Abstract]

Capitalized Software Development Costs

(5) Capitalized Software Development Costs

Capitalized software development costs consisted of the following (in thousands):

				As of  September 30, 2017
	Gross carrying amount		Amortization period	Accumulated amortization			Net carrying amount
Capitalized software development costs	$	35,278	3 years	$	(25,606	)	$	9,672
Total capitalized software development costs	$	35,278		$	(25,606	)	$	9,672

				As of December 31, 2016
	Gross carrying amount		Amortization period	Accumulated amortization			Net carrying amount
Capitalized software development costs	$	30,658	3 years	$	(21,866	)	$	8,792
Total capitalized software development costs	$	30,658		$	(21,866	)	$	8,792

The Company capitalized software development costs of $4.6 million and $5.5 million for the nine months ended September 30, 2017 and the year ended December 31, 2016, respectively.

Amortization expense for capitalized software development costs was $1.2 million and $3.7 million for the three and nine months ended September 30, 2017, respectively, and $1.3 million and $3.6 million for the three and nine months ended September 30, 2016, respectively. Amortization of capitalized software development costs is classified within cost of revenue in the consolidated statements of operations.

The expected amortization of capitalized software development costs, as of September 30, 2017, for each of the following years is as follows (in thousands):

	Amounts
2017 (for the remaining three months)	$	1,475
2018		4,384
2019		3,127
2020		686
	$	9,672

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Fair Value Measurements

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

(6) Fair Value Measurements

The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable, capital leases and accrued liabilities approximate fair value because of the short maturity of these items.

Certain assets, including long-lived assets, goodwill and intangible assets are also subject to measurement at fair value on a non-recurring basis if they are deemed to be impaired as a result of an impairment review. For the nine months ended September 30, 2017 and year ended December 31, 2016, no impairments were identified.

The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis at September 30, 2017 and December 31, 2016 by level within the fair value hierarchy. Financial assets and financial liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement (in thousands):

	As of  September 30, 2017
	Quoted		Significant
	Prices in		Other		Significant
	Active		Observable		Unobservable
	Markets		Inputs		Inputs		Total Fair
	(Level 1)		(Level 2)		(Level 3)		Value
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	9,957		—		—	$	9,957
U.S. treasury securities		—		2,498				2,498
U.S. government and agency securities		—		6,999		—		6,999
Short-term investments
U.S. treasury securities		—		7,289		—		7,289
U.S. government and agency securities		—		16,740		—		16,740
Total financial assets	$	9,957	$	33,526	$	—	$	43,483
Liabilities:
Contingent consideration		—		—	$	1,705	$	1,705
Total financial liabilities	$	—	$	—	$	1,705	$	1,705
	As of  December 31, 2016
	Quoted		Significant
	Prices in		Other		Significant
	Active		Observable		Unobservable
	Markets		Inputs		Inputs		Total Fair
	(Level 1)		(Level 2)		(Level 3)		Value
	(in thousands)
Assets:
Cash equivalents
Money market funds	$	57,032		—		—	$	57,032
Total financial assets	$	57,032	$	—	$	—	$	57,032
Liabilities:
Contingent consideration		—		—	$	388	$	388
Total financial liabilities	$	—	$	—	$	388	$	388

The Company classifies and discloses fair value measurements in one of the following three categories of fair value hierarchy:

Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets and liabilities.

Level 2 - Quoted prices in markets that are not active or financial instruments for which all significant inputs are observable, either directly or indirectly.

Level 3 - Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

The Company’s assets that are measured by management at fair value on a recurring basis are generally classified within Level 1 or Level 2 of the fair value hierarchy.  The Company did not have any transfers into and out of Level 1 or Level 2 during the nine months ended September 30, 2017. No assets or investments were classified as Level 3 as of September 30, 2017. The Company did not have any short-term investments as of December 31, 2016.

The Company considers all highly liquid investments purchased with a remaining maturity of three months or less to be cash equivalents. The fair value of the Company’s investments in certain money market funds is their face value and such instruments are classified as Level 1 and are included in cash and cash equivalents on the consolidated balance sheets. At September 30, 2017 the Company’s Level 2 securities were priced by pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available for these securities, use other observable inputs like market transactions involving identical or comparable securities.

The following table summarizes the changes in Level 3 financial instruments (in thousands).

	Amount
Fair Value at December 31, 2016	$	388
Foreign currency translation		47
Contingent consideration from IDV acquisition		5,020
Payments made during the year		(3,750	)
Balance at September 30, 2017	$	1,705

At December 31, 2016, the Company recorded the contingent consideration from the Crisis Commander acquisition under long-term other liabilities.

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Goodwill and Intangible Assets

9 Months Ended

Sep. 30, 2017

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

(7) Goodwill and Intangible Assets

Goodwill was $31.3 million and $9.7 million as of September 30, 2017 and December 31, 2016, respectively. There were no impairments recorded against goodwill during the nine months ended September 30, 2017 and for the year ended December 31, 2016. The following table displays the changes in the gross carrying amount of goodwill (in thousands):

	Amount
Balance at December 31, 2016	$	9,676
Foreign currency translation		471
IDV acquisition		21,196
Balance at September 30, 2017	$	31,343

Intangible assets consisted of the following (in thousands):

				As of  September 30, 2017
	Gross carrying amount		Weighted average life (years)	Accumulated amortization			Net carrying amount
Amortizable intangible assets:
Developed technology	$	4,065	3.1	$	(1,724	)	$	2,341
Trade names and patents		2,495	5.1		(584	)		1,911
Customer relationships		8,537	5.0		(3,450	)		5,087
Non-compete arrangement		240	2.0		(80	)		160
Total intangible assets	$	15,337		$	(5,838	)	$	9,499

				As of December 31, 2016
	Gross carrying amount		Weighted average life (years)	Accumulated amortization			Net carrying amount
Amortizable intangible assets:
Developed technology	$	1,490	3.60	$	(878	)	$	612
Trade names and patents		883	6.08		(254	)		629
Customer relationships		4,779	5.00		(2,080	)		2,699
Total intangible assets	$	7,152		$	(3,212	)	$	3,940

Amortization expense for intangible assets was $0.9 million and $2.4 million for the three and nine months ended September 30, 2017, respectively and $0.3 million and $0.9 million for the three and nine months ended September 30, 2016, respectively.  

The expected amortization of the intangible assets, as of September 30, 2017, for each of the next five years and thereafter is as follows (in thousands):

	Amounts
2017 (for the remaining three months)	$	932
2018		3,269
2019		2,582
2020		1,350
2021		1,234
2022 and thereafter		132
	$	9,499

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Business Combinations

9 Months Ended

Sep. 30, 2017

Business Combinations [Abstract]

Business Combinations

(8) Business Combinations

The Company accounted for the IDV Solutions LLC, or IDV and Crisis Commander acquisitions using the purchase method of accounting for business combinations under ASC 805, Business Combinations. The total purchase price is allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values as of the acquisition date.

As the Company finalizes the fair value of assets acquired and liabilities assumed, additional purchase price adjustments may be recorded during the measurement period (a period not to exceed 12 months). Fair value estimates are based on a complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. The judgments used to determine the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives and the expected future cash flows and related discount rates, can materiality impact our results of operations. Significant inputs used for the model included the amount of cash flows, the expected period of the cash flows and the discount rates. The finalization of the purchase accounting assessment may result in a change in the valuation of the contingent consideration and intangible assets, which may have a material impact on our results of operations and financial position.

IDV Acquisition

On January 27, 2017, the Company acquired IDV, in exchange for current cash consideration of $21.2 million, net of cash acquired and the fair value of contingent future consideration. At the date of acquisition, $2.5 million was deposited in an escrow account for fifteen months. The escrow fund is available to provide security to the Company to compensate it for losses it may incur as a result of any inaccuracy in the representations or warranties of IDV or the sellers contained in the IDV purchase agreement, any failure to comply with any covenant contained in the IDV purchase agreement or any liabilities or obligations related to the operation of IDV’s business prior to the closing of the acquisition.

In addition, in order to earn any future contingent consideration, IDV is required to meet certain billings thresholds at June 30, 2017 and December 31, 2017. At the date of the acquisition, the Company preliminarily assessed the probabilities of IDV meeting the future sales and billing thresholds and determined them to be probable. Therefore, contingent consideration was recorded as part of the purchase price allocation and the preliminary fair value of the contingent consideration was determined to be $5.0 million. Based on sales and billings thresholds met as of June 30, 2017, the Company paid $3.8 million of the contingent consideration as of September 30, 2017. IDV is a provider of threat assessment and operational visualization software located in Lansing, Michigan.The Company acquired IDV for its customer base and to complement some of the existing facets of its business with the Company’s existing customers.

The following table summarizes the allocation of the purchase consideration and the estimated fair value of the assets acquired and the liabilities assumed for the acquisition of IDV made by the Company. The purchase price allocations for IDV included in the table below are preliminary. The following table also summarizes the aggregate consideration for IDV as of September 30, 2017 (in thousands):

Assets acquired	IDV
Accounts receivable		1,462
Other assets		242
Property and equipment		174
Trade names		1,590
Acquired technology		2,490
Customer relationships		3,400
Non-compete arrangement		240
Goodwill		21,196
Total assets acquired	$	30,794
Liabilities assumed
Accounts payable and accrued expenses		347
Deferred revenue		4,060
Other liabilities		132
Net assets acquired	$	26,255
Consideration paid
Cash paid, net of cash acquired		21,235
Acquisition date fair value of contingent consideration		5,020
Total	$	26,255

The weighted average useful life of all identified acquired intangible assets is 4.26 years. The weighted average useful lives for acquired technologies, customer relationships, non-compete arrangements and trade names are 3.0 years 5.0 years, 2.0 years and 5.0 years, respectively. Identifiable intangible assets with definite lives are amortized over the period of estimated benefit using the straight-line method and the estimated useful lives of two to five years. The straight-line method of amortization represents the Company’s best estimate of the distribution of the economic value of the identifiable intangible assets.                             

As a result of the acquisition, the Company recorded $21.2 million of goodwill. The goodwill balance is primarily attributed to the anticipated synergies from the acquisition and expanded market opportunities with respect to the integration of IDV’s products with the Company's other solutions. The Company believes that the factors listed above in relation to the purchase of IDV support the amount of goodwill recorded as a result of the purchase price paid for the acquisition, in relation to other acquired tangible and intangible assets. The resulting goodwill from the IDV acquisition is deductible for income tax purposes.

For the three and nine months ended September 30, 2017, the Company incurred transaction costs of none and $0.1 million, respectively in connection with the IDV acquisition, which were expensed as incurred and included in general and administrative expenses within the accompanying consolidated statements of operations.

Unaudited Pro Forma Financial Information

The following tables reflect the unaudited pro forma combined results of operations for the three and nine months ended September 30, 2017 and the three and nine months ended September 30, 2016 as if the acquisition of IDV had taken place on January 1, 2016, as well as the results of acquired business included in our unaudited financial information for the three months ended September 30, 2017.  The unaudited pro forma financial information includes the effects of certain adjustments, including the amortization of acquired intangible assets and the associated tax effect and the elimination of the Company’s and the acquiree’s non-recurring acquisition related expenses:

	Revenue		Net income (loss)
Results of acquired business included in our three and nine months ended    (in thousands):
From the acquisition date to September 30, 2017	$	4,900	$	(2,274	)
For the nine months ended September 30, 2017 pro forma	$	5,437	$	(2,419	)
For the nine months ended September 30, 2016 pro forma	$	7,713	$	(1,189	)
For the three months ended September 30, 2017	$	1,882	$	(691	)
For the three months ended September 30, 2016 pro forma	$	2,595	$	(48	)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Basic and diluted earnings per share pro    forma	$	(0.02	)	$	(0.00	)	$	(0.09	)	$	(0.09	)

The unaudited pro forma information presented does not purport to be indicative of the results that would have been achieved had the acquisition been consummated at January 1, 2016 nor of the results which may occur in the future. The pro forma adjustments are based upon available information and certain assumptions that the Company believes are reasonable.

Crisis Commander Acquisition

On December 30, 2016, the Company completed the acquisition of Crisis Commander, a privately held SaaS mobile crisis management company based in Norsborg, Sweden. The acquisition was consummated pursuant to a purchase agreement for an initial preliminary purchase price of $2.7 million, subject to earn out payments contingent on meeting certain revenue thresholds, which are expected to be paid in March 2018.

The excess of purchase consideration over the fair value of net tangible liabilities assumed and identifiable intangible assets acquired was recorded as goodwill. The fair values assigned to tangible and identifiable intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions. The estimated fair values of assets acquired and liabilities assumed may be subject to change as additional information is received. Thus, the provisional measurements of fair value have been recorded.

The goodwill balance is primarily attributed to the anticipated synergies from the acquisition and expanded market opportunities with respect to the integration of Crisis Commander’s platform with the Company's other solutions. The goodwill balance is not deductible for U.S. income tax purposes.

The assets and results of operations of Crisis Commander were not significant to the Company’s consolidated financial position or results of operations, and thus pro forma information is not presented.

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Stockholders' Equity

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Stockholders' Equity

(9) Stockholders’ Equity

Preferred Stock

As of September 30, 2017, the Company had authorized 10,000,000 shares of preferred stock, par value $0.001, of which no shares were outstanding.

Common Stock

As of September 30, 2017, the Company had authorized 100,000,000 shares of common stock, par value $0.001.  Holders of common stock are entitled to one vote per share. At September 30, 2017 and December 31, 2016, there were 28,203,369 and 27,150,674 shares of common stock issued and outstanding, respectively.

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Stock Plans and Stock-Based Compensation

9 Months Ended

Sep. 30, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Plans and Stock-Based Compensation

(10) Stock Plans and Stock-Based Compensation

The Company’s 2016 Equity Incentive Plan (the “2016 Plan”) became effective on September 15, 2016. The 2016 Plan provides for the grant of incentive stock options, non-qualified stock options, restricted stock awards, restricted stock unit awards, stock appreciation rights and performance share awards to employees, directors and consultants of the Company. A total of 3,893,118 shares of the Company’s common stock were initially reserved for issuance under the 2016 Plan, which is the sum of (1) 2,000,000 shares, (2) the number of shares reserved for issuance under the Company’s 2008 Equity Incentive Plan (the “2008 Plan”) at the time the 2016 Plan became effective (up to a maximum of 42,934 shares) and (3) shares subject to stock options or other stock awards granted under the 2008 Plan that would have otherwise returned to the Company’s 2008 Plan (up to a maximum of 1,850,184 shares). The number of shares of common stock reserved for issuance under the 2016 Plan will automatically increase on January 1 of each year, beginning on January 1, 2017, by 3% of the number of shares of the Company’s capital stock outstanding on the immediately preceding December 31, or such lesser number of shares as determined by the Company’s board of directors.

As a result of the adoption of the 2016 Plan, no further grants may be made under the 2008 Plan. The 2008 Plan provided for the grant of stock options to the Company’s employees, directors and consultants.  Stock option awards were granted with an exercise price equal to the fair market value of the Company’s common stock at the date of grant as determined by the Company’s board of directors. The option awards generally vested over four years and were exercisable any time after vesting. The stock options expire ten years after the date of grant.

2016 Employee Stock Purchase Plan

The Company’s Employee Stock Purchase Plan (“2016 ESPP”) became effective on September 15, 2016. A total of 500,000 shares of the Company’s common stock were initially reserved for issuance under the 2016 Plan. The number of shares reserved for issuance under the 2016 ESPP will automatically increase on January 1 of each year, beginning on January 1, 2017, by the lesser of 200,000 shares of the Company’s common stock, 1% of the number of shares of the Company’s common stock outstanding on the immediately preceding December 31, or such lesser number of shares as determined by the Company’s board of directors.

The 2016 ESPP allows eligible employees to purchase shares of the Company’s common stock at a discount of up to 15% through payroll deductions of their eligible compensation, subject to any plan limitations. Except for the initial offering period, the 2016 ESPP provides for separate six-month offering periods beginning each March and September of each fiscal year.

On each purchase date, eligible employees will purchase the Company’s stock at a price per share equal to 85% of the lesser of (i) the fair market value of the Company’s common stock on the offering date or (ii) the fair market value of the Company’s common stock on the purchase date.

For the nine months ended September 30, 2017, 128,786 shares of common stock were purchased under the 2016 ESPP. The 2016 ESPP is considered compensatory for purposes of stock-based compensation expense.

Stock Options

The Company recorded stock-based compensation expense of $2.8 million and $4.9 million for the three and nine months ended September 30, 2017, respectively. The Company recorded stock-based compensation expense of $0.8 million and $2.2 million for the three and nine months ended September 30, 2016, respectively.  

The total intrinsic value of options exercised for the three and nine months ended September 30, 2017 was $2.9 million and $6.5 million, respectively. This intrinsic value represents the difference between the fair market value of the Company’s common stock on the date of exercise and the exercise price of each option. Based on the fair market value of the Company’s common stock at September 30, 2017, the total intrinsic value of all outstanding options was $26.7 million.

The fair value of stock option grants is determined using the Black-Scholes option pricing model with the following weighted average assumptions. In addition, the fair value per share on grant date is presented below: 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Employee Stock Options:
Fair value per share on grant date	$23.17 - $23.60		$8.94 - $9.02		$18.05 - $24.87		$8.51 - $9.02
Expected term (in years)		6.00	5.99 - 6.11		6.00 - 6.11		5.29 - 6.11
Expected volatility	60%		70%		60%		70%
Risk-free interest rate	1.82% - 1.93%		1.21% - 1.25%		1.82% - 2.47%		1.21% - 1.86%
Dividend rate		0%		0%		0%		0%
Employee Stock Purchase Plan:
Expected term (in years)		0.50		—		0.50		—
Expected volatility	60%			—	60%			—
Risk-free interest rate	1.18%			—	0.45% - 1.18%			—
Dividend rate		0%		—		0%		—

⁽¹⁾ The expected term represents the period that the stock-based compensation awards are expected to be outstanding. Since the Company did not have sufficient historical information to develop reasonable expectations about future exercise behavior, the Company used the simplified method to compute expected term, which reflects the average of the time-to-vesting and the contractual life;

⁽²⁾ The expected volatility of the Company’s common stock on the date of grant is based on the volatilities of publicly traded peer companies that are reasonably comparable to the Company’s own operations;

⁽³⁾ The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for zero coupon U.S. Treasury notes with maturities approximately equal to the expected term of the options; and

⁽⁴⁾ The expected dividend yield is assumed to be zero as the Company has never paid dividends and has no current plans to pay any dividends on the Company’s common stock.

Total unrecognized compensation cost related to nonvested stock options was approximately $15.3 million as of September 30, 2017, and is expected to be recognized over a weighted average period of 3.12 years.

A summary of activities under the 2008 Plan and the 2016 Plan is shown as follows for the year ended December 31, 2016 and the nine months ended September 30, 2017:

	Stock options outstanding			Weighted average exercise price
Outstanding at December 31, 2015		1,821,722		$	8.68
Granted		292,204			14.75
Exercised		(163,968	)		4.30
Forfeited		(65,533	)		8.03
Outstanding at December 31, 2016		1,884,425			10.02
Granted		997,244			22.47
Exercised		(370,084	)		5.64
Forfeited		(42,032	)		15.50
Outstanding at September 30, 2017		2,469,553		$	15.61

Stock-based compensation expense is recognized over the award’s expected vesting schedule, which is reduced for forfeitures.

Stock options outstanding, and options exercisable and vested are as follows:

Outstanding as of September 30, 2017		Remaining contractual life (years)		Weighted average exercise price		Exercisable as of September 30, 2017		Remaining contractual life (years)		Weighted average exercise price
	2,469,553		8.36	$	15.61		768,956		7.03	$	9.45

Outstanding as of December 31, 2016		Remaining contractual life (years)		Weighted average exercise price		Exercisable as of December 31, 2016		Remaining contractual life (years)		Weighted average exercise price
	1,884,425		7.86	$	10.02		809,900		7.13	$	6.81

Vested and nonvested stock option activity was as follows:

	Vested				Nonvested
	Options outstanding		Weighted average exercise price		Options outstanding		Weighted average exercise price
Outstanding at September 30, 2017		768,956	$	9.45		1,700,597	$	18.40
Outstanding at December 31, 2016		809,900	$	6.81		1,074,525	$	12.44

Restricted Stock Units

In August 2017, we granted 286,000 restricted stock units to members of our senior management pursuant to the 2016 Plan. We account for restricted stock units issued to employees at fair value, based on the market price of our stock on the date of grant. During the three months ended September 30, 2017 and 2016 we recorded $0.4 million and none, respectively, of stock-based compensation related to the restricted stock units that had been issued to-date. During the nine months ended September 30, 2017 and 2016 we recorded $0.4 million and none, respectively, of stock-based compensation related to the restricted stock units that had been issued to-date. There were no restricted stock units which vested during the three and nine months ended September 30, 2017 and 2016, respectively.

As of September 30, 2017, there was $6.3 million of unrecognized compensation expense related to unvested employee restricted stock unit awards which is expected to be recognized over a weighted-average period of approximately 2.8 years. For restricted stock unit awards subject to graded vesting, we recognize compensation cost on a straight-line basis over the service period for the entire award.

Market-Based Restricted Stock Units

In August 2017, we granted 286,000 market-based restricted stock units to members of our senior management pursuant to the 2016 Plan. The restricted stock units vest based on the Company achieving certain stock price thresholds which range from $35 per share to $55 per share for 30 consecutive trading days as reported by The Nasdaq Stock Market, LLC, subject to the employee’s continued employment with the Company through the date of achievement. The share price of our common stock on the date of issuance of the market-based restricted stock unit was $23.60 per share. The fair value is based on values calculated under the Monte Carlo simulation model on the grant date. The key estimates used in the Monte-Carlo simulation were a risk-free rate of 2.26%, dividend yield of zero, expected term of 10 years and volatility of 60%. Compensation cost is not adjusted in future periods for subsequent changes in the expected outcome of market related conditions. For the three and nine months ended September 30, 2017, we recognized $1.0 million, respectively, of stock compensation expense in connection with these awards, which is included in general and administrative expenses.

As of September 30, 2017, there was $6.8 million of unrecognized compensation expense related to unvested market based awards which is expected to be recognized over a weighted-average period of approximately 1.1 years. We recognize compensation cost on a straight-line basis over the service period for the entire award.

Stock-Based Compensation Expense

The Company recorded the total stock-based compensation expense as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Cost of revenue	$	141	$	46	$	266	$	135
Sales and marketing		691		211		1,250		503
Research and development		416		87		738		263
General and administrative		1,555		415		2,618		1,264
Total	$	2,803	$	759	$	4,872	$	2,165

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Basic and Diluted Net Loss Per Share

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Basic and Diluted Net Loss Per Share

(11) Basic and Diluted Net Loss per Share

Basic net loss per common share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share of common stock is computed by giving effect to all potential dilutive shares of common stock. Basic and diluted net loss per share of common stock were the same for all periods presented as the impact of all potentially dilutive securities outstanding was anti-dilutive.  

The following common equivalent shares were excluded from the diluted net loss per share calculation because their inclusion would have been anti-dilutive:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Stock options		2,469,553		1,846,853		2,469,553		1,846,853
Non-vested market-based restricted stock units		286,000		—		286,000		—
Non-vested restricted stock units		286,000		—		286,000		—
Total		3,041,553		1,846,853		3,041,553		1,846,853

The Company is required to reserve and keep available from the Company’s authorized but unissued shares of common stock a number of shares equal to the number of shares subject to outstanding awards under the 2008 Plan and the number of shares reserved for issuance under each of the 2016 Plan and 2016 ESPP.

The amount of such shares of the Company’s common stock reserved for these purposes at September 30, 2017 is as follows:

	Number of Shares
Stock options issued and outstanding		2,469,553
Additional shares available for grant under equity plans		2,436,005
Total		4,905,558

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Income Taxes

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Income Taxes

(12) Income Taxes

The Company is subject to income tax in the United States as well as other tax jurisdictions in which it conducts business. Earnings from non-U.S. activities are subject to local country income tax. The Company does not provide for US deferred income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are reinvested indefinitely.

The Company’s tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items arising in that quarter. In each quarter, the Company updates its estimate of the annual effective tax rate, and if the estimated annual tax rate changes, the Company makes a cumulative adjustment in that quarter. The Company’s quarterly tax provision, and its quarterly estimate of its annual effective tax rate, are subject to significant volatility due to several factors, including the Company’s ability to accurately predict its pre-tax income and loss in multiple jurisdictions.

For the three months ended September 30, 2017 and 2016, the Company recorded a tax benefit for income taxes of $79,000 and a provision for income taxes of $35,000, respectively, resulting in an effective tax benefit of 1.83% and effective tax rate of 1.35%, respectively. For the nine months ended September 30, 2017 and 2016, the Company recorded a tax benefit of $65,000 and a tax benefit of $75,000, respectively, resulting in an effective tax benefit of 0.47% and benefit of 0.86%, respectively. During the current year periods, the effective tax rate is lower than the statutory federal tax rate as the Company was not able to benefit from its net operating losses due to its full valuation allowance.

As of September 30, 2017, the Company had gross tax-effected unrecognized tax benefits of $0.3 million, of which $0.3 million, if recognized, would favorably impact the effective tax rate. The Company’s existing tax positions will continue to generate an increase in unrecognized tax benefits in subsequent periods. The Company’s policy is to record interest and penalties related to unrecognized tax benefits as income tax expense. During the three and nine months ended September 30, 2017 and 2016, the amounts recorded related to the accrual of interest and penalties were immaterial in each period.  

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Segment Information

9 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Segment Information

(13) Segment information

The Company operates as one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker, or CODM, who is the Company’s chief executive officer, in deciding how to allocate resources and assess the Company’s financial and operational performance. While the Company has applications that address multiple use cases, all of the Company’s applications operate on and leverage a single technology platform and are deployed and sold in an identical way. In addition, the Company’s CODM evaluates the Company’s financial information and resources and assesses the performance of these resources on a consolidated basis. As a result, the Company has determined that the Company’s business operates in a single operating segment. Since the Company operates as one operating segment, all required financial segment information can be found in the consolidated financial statements.

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Geographic Concentrations

9 Months Ended

Sep. 30, 2017

Risks And Uncertainties [Abstract]

Geographic Concentrations

(14) Geographic Concentrations

Revenue by location is determined by the billing address of the customer. Approximately 90% and 90% of the Company’s revenue was from the United States for the three and nine months ended September 30, 2017, respectively. Approximately 90% and 89% of the Company’s revenue was from the United States for the three and nine months ended September 30, 2016, respectively. No other individual country comprised more than 10% of total revenue for the three and nine months ended September 30, 2017 and 2016. Property and equipment by geographic location is based on the location of the legal entity that owns the asset. As of September 30, 2017, more than 88% of the Company’s property and equipment was located in the United States.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2017

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

(15) Commitments and Contingencies

(a) Leases

The Company leases office space in Pasadena, California; San Francisco, California; Burlington, Massachusetts; Colchester, England; Windsor, England; Lansing, Michigan, Orlando, Florida, Norsborg, Sweden and Beijing, China under operating leases and recognizes escalating rent expense on a straight-line basis over the expected lease term.

There were no material changes in our commitments under contractual obligations, as disclosed in the Company’s audited consolidated financial statements for the year ended December 31, 2016 and related notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016, except those disclosed below.

In December 2016, the Company entered into a new lease for its executive offices in Burlington, Massachusetts that began on June 1, 2017 and will account for $7.8 million in minimum lease payments over the next five years.

In January 2017, as a result of the acquisition of IDV, the Company inherited leases for IDV’s executive offices in Lansing, Michigan and sales office in Orlando, Florida which will expire over the next seven years and will account for $1.4 million in minimum lease payments.

In June 2017, the Company entered into a new lease for its offices in Beijing, China that will increase its future minimum lease payments beginning in July 2017 by $0.8 million over the next two years.

In June 2017, the Company entered into a new lease for its offices in Maidenhead, United Kingdom that will increase its future minimum lease payments beginning in July 2017 by $0.2 million over the next four years.

As of September 30, 2017, future minimum lease payments under non-cancelable operating leases are as follows (in thousands):

	Amounts
2017 (for the remaining three months)	$	761
2018		2,659
2019		2,106
2020		1,938
2021		1,892
2022 and thereafter		1,354
Total minimum lease payments	$	10,710

(b) Rent

Rent expense was $0.8 million and $1.7 million for the three and nine months ended September 30, 2017, respectively, and $0.4 million and $1.2 million for the three and nine months ended September 30, 2016, respectively.

(c) Litigation

In the normal course of business, the Company has been subjected to various unasserted claims. The Company does not believe these will have a material adverse impact to the financial statements.

(d)Credit Facility

The Company has a revolving line of credit agreement with Western Alliance Bank, which provides for a $15.0 million revolving secured credit facility maturing on June 30, 2018. Amounts outstanding under the line of credit bear interest at the prime rate plus 0.75% with accrued interest payable on a monthly basis and outstanding and unpaid principal due upon maturity. Western Alliance Bank maintains a security interest in substantially all of the Company’s tangible and intangible assets, excluding intellectual property, to secure any outstanding amounts under the loan agreement. The loan agreement contains customary events of default, conditions to borrowing and covenants, including restrictions on the Company’s ability to dispose of assets, make acquisitions, incur debt, incur liens and make distributions and dividends to stockholders. The loan agreement also includes a financial covenant related to the Company’s recurring revenue renewal rate. During the continuance of an event of default, Western Alliance Bank may accelerate amounts outstanding, terminate the credit facility and foreclose on the collateral.

As of September 30, 2017, no amounts had been drawn under the credit facility.

(e) Employee Contracts

The Company has entered into employment contracts with certain of the Company’s executive officers which provide for at-will employment. However, under the provisions of the contracts, the Company would incur severance obligations of up to twelve months of the executive’s annual base salary for certain events, such as involuntary terminations.

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Subsequent Events

9 Months Ended

Sep. 30, 2017

Subsequent Events [Abstract]

Subsequent Events

(16) Subsequent Events

The Company evaluated subsequent events and concluded that no subsequent events have occurred that would require recognition in the unaudited Condensed Consolidated Financial Statements or disclosure in the notes thereto.

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2017

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

The condensed consolidated balance sheet as of December 31, 2016, included herein, was derived from the audited financial statements as of that date, but does not include all disclosures including certain notes required by U.S. GAAP on an annual reporting basis.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year 2017 or any future period.

Principles of Consolidation

Principles of Consolidation

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

Use of Estimates

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amount of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Assets and liabilities which are subject to judgment and use of estimates include allowances for doubtful accounts, the fair value of assets acquired and liabilities assumed in business combinations, the recoverability of goodwill and long-lived assets, valuation allowances with respect to deferred tax assets, useful lives associated with property and equipment and intangible assets, contingencies, and the valuation and assumptions underlying stock-based compensation. On an ongoing basis, the Company evaluates its estimates compared to historical experience and trends, which form the basis for making judgments about the carrying value of assets and liabilities. In addition, the Company engaged valuation specialists to assist with management’s determination of the valuation of its fair values of assets acquired and liabilities assumed in business combinations.

Concentrations of Credit and Business Risk

Concentrations of Credit and Business Risk

Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash and cash equivalents and accounts receivable.

The Company maintains cash balances at several banks. Accounts located in the United States are insured by the Federal Deposit Insurance Corporation, or FDIC, up to $250,000. From time to time, balances may exceed amounts insured by the FDIC. The Company has not experienced any losses in such amounts.

The Company’s accounts receivable are generally unsecured and are derived from revenue earned from customers located in the United States, Sweden and the United Kingdom and are generally denominated in U.S. dollars, Swedish kronor or British pounds. Each reporting period, the Company reevaluates each customer’s ability to satisfy credit obligations and maintains an allowance for doubtful accounts based on the evaluations. No single customer comprised more than 10% of the Company’s total revenue or accounts receivable for the three or nine months ended September 30, 2017 and 2016.  

Cash and Cash Equivalents

Cash and Cash Equivalents

The Company considers all highly liquid instruments with original maturities of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents are recorded at cost, which approximates fair value. As of September 30, 2017, $19.5 million of the Company’s cash equivalents were invested in money market funds and U.S. government securities.

Short-Term Investments

Short-Term Investments

Short-term investments consist of highly liquid investments, primarily commercial paper, U.S. Treasury and U.S. agency securities, with maturities over three months from the date of purchase. Debt securities, money market funds and U.S. agency bonds that the Company has the ability and positive intent to hold to maturity are carried at amortized cost, which approximates fair value. Short-term investments of $24.0 million and none at September 30, 2017 and December 31, 2016, respectively, were classified as held-to-maturity and primarily comprised of U.S. treasury and U.S. agency securities. All held-to-maturity securities at September 30, 2017 have maturity dates within one year.

Significant Accounting Policies

Significant Accounting Policies

There have been no changes to the Company’s significant accounting policies described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

Recently Issued Accounting Guidance, Not Yet Adopted

Recently Issued Accounting Guidance Not Yet Adopted

In January 2017, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or (“ASU”), ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This guidance eliminates Step 2 from the goodwill impairment test, instead requiring an entity to recognize a goodwill impairment charge for the amount by which the goodwill carrying amount exceeds the reporting unit’s fair value. This guidance is effective for interim and annual goodwill impairment tests in fiscal years beginning after December 15, 2019, and early adoption is permitted. This guidance must be applied on a prospective basis. The Company expects to adopt this guidance for interim and annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of this guidance to have a material impact on its financial position, results of operations or cash flows.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. This guidance narrows the definition of a business. This standard provides guidance to assist entities with evaluating when a set of transferred assets and activities is a business. This guidance is effective for interim and annual reporting periods beginning after December 15, 2017, and early adoption is permitted. This guidance must be applied prospectively to transactions occurring within the period of adoption. The Company expects to adopt this guidance effective January 1, 2018. The Company does not expect the adoption of this guidance to have a material impact on its financial position, results of operations or cash flows.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. This guidance requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and restricted cash. As a result, restricted cash will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The new guidance is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, and the new guidance is to be applied retrospectively. The Company does not expect the adoption of this guidance to have a material impact on its cash flows.

In September 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This guidance clarifies the presentation requirements of eight specific issues within the statement of cash flows. The new guidance is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. The adoption of this guidance is not expected to have a significant impact on the Company’s financial statements, as the Company's treatment of the relevant affected items within its consolidated statement of cash flows is consistent with the requirements of this guidance.

In February 2016, the FASB issued ASU 2016-02, Leases, to require lessees to recognize most leases on the balance sheet, while recognition on the statement of operations will remain similar to current lease accounting. The ASU also eliminates real estate-specific provisions and modifies certain aspects of lessor accounting. The ASU is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted. Adoption of the ASU is modified retrospective. We are still in the process of evaluating the ASU but currently plan to adopt the ASU on January 1, 2019

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which amends the existing accounting standards for revenue recognition. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which delays the effective date of ASU 2014-09 by one year. The FASB also agreed to allow entities to choose to adopt the standard as of the original effective date. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies the implementation guidance on principal versus agent considerations. The guidance includes indicators to assist an entity in determining whether it controls a specified good or service before it is transferred to the customers. The new revenue recognition standard will be effective for the Company effective January 1, 2018. The new standard permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the modified retrospective method).

The Company currently anticipates adopting the standard using the modified retrospective method.

The Company is continuing to assess the impact of adopting ASU 2014-09 on its financial position, results of operations and related disclosures and has not yet determined whether the effect of the revenue portion will be material. Additionally, as the Company continues to assess the new standard along with industry trends and additional interpretive guidance, the Company may adjust its implementation plan accordingly.

The Company believes that the new standard will impact the following policies and disclosures:

• allocation of subscription and support revenue across different platforms and to professional services revenue;

• required disclosures including information about the transaction price and when the Company expects to recognize revenue; and

• accounting for deferred sales commissions including costs that qualify for deferral and the amortization period.

The sales commission accounting under the new standard is significantly different than the Company's current commission capitalization policy. The new standard will result in additional types of costs being capitalized. Additionally, all amounts capitalized are expected to be amortized over a period that is longer than the Company's current policy of amortizing the deferred amounts over the specific revenue contract terms. While the Company has not yet finalized its assessment of the impact will have on its financial position and results of operations, the Company believes it will be material.

The Company does not expect the adoption of ASU 2014-09 to have any impact on its operating cash flows.

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Accounts Receivable, Net (Tables)

9 Months Ended

Sep. 30, 2017

Accounts Receivable Net [Abstract]

Schedule of Accounts Receivable Net

Accounts receivable, net is as follows (in thousands):

	As of			As of
	September 30, 2017			December 31, 2016
Accounts receivable	$	23,192		$	18,231
Allowance for doubtful accounts and sales reserve		(919	)		(419	)
Net accounts receivable	$	22,273		$	17,812

Schedule of Changes in Allowance for Doubtful Accounts

The following table summarizes the changes in the allowance for doubtful accounts (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Balance, beginning of period	$	(610	)	$	(377	)	$	(374	)	$	(336	)
Additions		(195	)		(8	)		(484	)		(95	)
Write-offs		11			33			64			79
Balance, end of period	$	(794	)	$	(352	)	$	(794	)	$	(352	)

Schedule of Changes in Sales Reserve

The following table summarizes the changes in the sales reserve (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Balance, beginning of period	$	(116	)	$	(45	)	$	(45	)	$	(45	)
Additions		(24	)		—			(104	)		—
Write-offs		15			—			24			—
Balance, end of period	$	(125	)	$	(45	)	$	(125	)	$	(45	)

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Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2017

Property Plant And Equipment [Abstract]

Schedule of Property and Equipment

Property and equipment consisted of the following (in thousands):

	Useful life in years		As of  September 30, 2017			As of  December 31, 2016
Furniture and equipment		5	$	1,794		$	928
System hardware		5		1,623			3,320
Office computers		3		2,285			1,777
Computer and system software		3		1,186			1,478
				6,888			7,503
Less accumulated depreciation and amortization				(4,044	)		(4,580	)
Property and equipment, net			$	2,844		$	2,923

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Capitalized Software Development Costs (Tables)

9 Months Ended

Sep. 30, 2017

Research And Development [Abstract]

Summary of Capitalized Software Development Costs

Capitalized software development costs consisted of the following (in thousands):

				As of  September 30, 2017
	Gross carrying amount		Amortization period	Accumulated amortization			Net carrying amount
Capitalized software development costs	$	35,278	3 years	$	(25,606	)	$	9,672
Total capitalized software development costs	$	35,278		$	(25,606	)	$	9,672

				As of December 31, 2016
	Gross carrying amount		Amortization period	Accumulated amortization			Net carrying amount
Capitalized software development costs	$	30,658	3 years	$	(21,866	)	$	8,792
Total capitalized software development costs	$	30,658		$	(21,866	)	$	8,792

Schedule of Expected Amortization of Capitalized Software Development Costs

The expected amortization of capitalized software development costs, as of September 30, 2017, for each of the following years is as follows (in thousands):

	Amounts
2017 (for the remaining three months)	$	1,475
2018		4,384
2019		3,127
2020		686
	$	9,672

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis at September 30, 2017 and December 31, 2016 by level within the fair value hierarchy. Financial assets and financial liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement (in thousands):

	As of  September 30, 2017
	Quoted		Significant
	Prices in		Other		Significant
	Active		Observable		Unobservable
	Markets		Inputs		Inputs		Total Fair
	(Level 1)		(Level 2)		(Level 3)		Value
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	9,957		—		—	$	9,957
U.S. treasury securities		—		2,498				2,498
U.S. government and agency securities		—		6,999		—		6,999
Short-term investments
U.S. treasury securities		—		7,289		—		7,289
U.S. government and agency securities		—		16,740		—		16,740
Total financial assets	$	9,957	$	33,526	$	—	$	43,483
Liabilities:
Contingent consideration		—		—	$	1,705	$	1,705
Total financial liabilities	$	—	$	—	$	1,705	$	1,705
	As of  December 31, 2016
	Quoted		Significant
	Prices in		Other		Significant
	Active		Observable		Unobservable
	Markets		Inputs		Inputs		Total Fair
	(Level 1)		(Level 2)		(Level 3)		Value
	(in thousands)
Assets:
Cash equivalents
Money market funds	$	57,032		—		—	$	57,032
Total financial assets	$	57,032	$	—	$	—	$	57,032
Liabilities:
Contingent consideration		—		—	$	388	$	388
Total financial liabilities	$	—	$	—	$	388	$	388

Summary of Changes in Level 3 Financial Instruments

The following table summarizes the changes in Level 3 financial instruments (in thousands).

	Amount
Fair Value at December 31, 2016	$	388
Foreign currency translation		47
Contingent consideration from IDV acquisition		5,020
Payments made during the year		(3,750	)
Balance at September 30, 2017	$	1,705

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Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Changes in Gross Carrying Amount of Goodwill

The following table displays the changes in the gross carrying amount of goodwill (in thousands):

	Amount
Balance at December 31, 2016	$	9,676
Foreign currency translation		471
IDV acquisition		21,196
Balance at September 30, 2017	$	31,343

Schedule of Intangible Assets

Intangible assets consisted of the following (in thousands):

				As of  September 30, 2017
	Gross carrying amount		Weighted average life (years)	Accumulated amortization			Net carrying amount
Amortizable intangible assets:
Developed technology	$	4,065	3.1	$	(1,724	)	$	2,341
Trade names and patents		2,495	5.1		(584	)		1,911
Customer relationships		8,537	5.0		(3,450	)		5,087
Non-compete arrangement		240	2.0		(80	)		160
Total intangible assets	$	15,337		$	(5,838	)	$	9,499

				As of December 31, 2016
	Gross carrying amount		Weighted average life (years)	Accumulated amortization			Net carrying amount
Amortizable intangible assets:
Developed technology	$	1,490	3.60	$	(878	)	$	612
Trade names and patents		883	6.08		(254	)		629
Customer relationships		4,779	5.00		(2,080	)		2,699
Total intangible assets	$	7,152		$	(3,212	)	$	3,940

Schedule of Expected Amortization of Intangible Assets

The expected amortization of the intangible assets, as of September 30, 2017, for each of the next five years and thereafter is as follows (in thousands):

	Amounts
2017 (for the remaining three months)	$	932
2018		3,269
2019		2,582
2020		1,350
2021		1,234
2022 and thereafter		132
	$	9,499

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Business Combinations (Tables) - IDV Solutions LLC

9 Months Ended

Sep. 30, 2017

Summary of Allocation of Purchase Consideration and Estimated Values of Assets Acquired and Liabilities Assumed

The following table summarizes the allocation of the purchase consideration and the estimated fair value of the assets acquired and the liabilities assumed for the acquisition of IDV made by the Company. The purchase price allocations for IDV included in the table below are preliminary. The following table also summarizes the aggregate consideration for IDV as of September 30, 2017 (in thousands):

Assets acquired	IDV
Accounts receivable		1,462
Other assets		242
Property and equipment		174
Trade names		1,590
Acquired technology		2,490
Customer relationships		3,400
Non-compete arrangement		240
Goodwill		21,196
Total assets acquired	$	30,794
Liabilities assumed
Accounts payable and accrued expenses		347
Deferred revenue		4,060
Other liabilities		132
Net assets acquired	$	26,255
Consideration paid
Cash paid, net of cash acquired		21,235
Acquisition date fair value of contingent consideration		5,020
Total	$	26,255

Summary of Unaudited Pro Forma Combined Results of Operations

The following tables reflect the unaudited pro forma combined results of operations for the three and nine months ended September 30, 2017 and the three and nine months ended September 30, 2016 as if the acquisition of IDV had taken place on January 1, 2016, as well as the results of acquired business included in our unaudited financial information for the three months ended September 30, 2017.  The unaudited pro forma financial information includes the effects of certain adjustments, including the amortization of acquired intangible assets and the associated tax effect and the elimination of the Company’s and the acquiree’s non-recurring acquisition related expenses:

	Revenue		Net income (loss)
Results of acquired business included in our three and nine months ended    (in thousands):
From the acquisition date to September 30, 2017	$	4,900	$	(2,274	)
For the nine months ended September 30, 2017 pro forma	$	5,437	$	(2,419	)
For the nine months ended September 30, 2016 pro forma	$	7,713	$	(1,189	)
For the three months ended September 30, 2017	$	1,882	$	(691	)
For the three months ended September 30, 2016 pro forma	$	2,595	$	(48	)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Basic and diluted earnings per share pro    forma	$	(0.02	)	$	(0.00	)	$	(0.09	)	$	(0.09	)

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Stock Plans and Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Assumptions Used in Determining Fair Value of Stock Option Grants

The fair value of stock option grants is determined using the Black-Scholes option pricing model with the following weighted average assumptions. In addition, the fair value per share on grant date is presented below: 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Employee Stock Options:
Fair value per share on grant date	$23.17 - $23.60		$8.94 - $9.02		$18.05 - $24.87		$8.51 - $9.02
Expected term (in years)		6.00	5.99 - 6.11		6.00 - 6.11		5.29 - 6.11
Expected volatility	60%		70%		60%		70%
Risk-free interest rate	1.82% - 1.93%		1.21% - 1.25%		1.82% - 2.47%		1.21% - 1.86%
Dividend rate		0%		0%		0%		0%
Employee Stock Purchase Plan:
Expected term (in years)		0.50		—		0.50		—
Expected volatility	60%			—	60%			—
Risk-free interest rate	1.18%			—	0.45% - 1.18%			—
Dividend rate		0%		—		0%		—

⁽¹⁾ The expected term represents the period that the stock-based compensation awards are expected to be outstanding. Since the Company did not have sufficient historical information to develop reasonable expectations about future exercise behavior, the Company used the simplified method to compute expected term, which reflects the average of the time-to-vesting and the contractual life;

⁽²⁾ The expected volatility of the Company’s common stock on the date of grant is based on the volatilities of publicly traded peer companies that are reasonably comparable to the Company’s own operations;

⁽³⁾ The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for zero coupon U.S. Treasury notes with maturities approximately equal to the expected term of the options; and

⁽⁴⁾ The expected dividend yield is assumed to be zero as the Company has never paid dividends and has no current plans to pay any dividends on the Company’s common stock.

Schedule of Stock Option Activity

A summary of activities under the 2008 Plan and the 2016 Plan is shown as follows for the year ended December 31, 2016 and the nine months ended September 30, 2017:

	Stock options outstanding			Weighted average exercise price
Outstanding at December 31, 2015		1,821,722		$	8.68
Granted		292,204			14.75
Exercised		(163,968	)		4.30
Forfeited		(65,533	)		8.03
Outstanding at December 31, 2016		1,884,425			10.02
Granted		997,244			22.47
Exercised		(370,084	)		5.64
Forfeited		(42,032	)		15.50
Outstanding at September 30, 2017		2,469,553		$	15.61

Schedule of Stock Options Outstanding and Options Exercisable and Vested

Stock options outstanding, and options exercisable and vested are as follows:

Outstanding as of September 30, 2017		Remaining contractual life (years)		Weighted average exercise price		Exercisable as of September 30, 2017		Remaining contractual life (years)		Weighted average exercise price
	2,469,553		8.36	$	15.61		768,956		7.03	$	9.45

Outstanding as of December 31, 2016		Remaining contractual life (years)		Weighted average exercise price		Exercisable as of December 31, 2016		Remaining contractual life (years)		Weighted average exercise price
	1,884,425		7.86	$	10.02		809,900		7.13	$	6.81

Schedule of Vested and Nonvested Stock Option Activity

Vested and nonvested stock option activity was as follows:

	Vested				Nonvested
	Options outstanding		Weighted average exercise price		Options outstanding		Weighted average exercise price
Outstanding at September 30, 2017		768,956	$	9.45		1,700,597	$	18.40
Outstanding at December 31, 2016		809,900	$	6.81		1,074,525	$	12.44

Schedule of Stock-Based Compensation Expense

The Company recorded the total stock-based compensation expense as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Cost of revenue	$	141	$	46	$	266	$	135
Sales and marketing		691		211		1,250		503
Research and development		416		87		738		263
General and administrative		1,555		415		2,618		1,264
Total	$	2,803	$	759	$	4,872	$	2,165

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Basic and Diluted Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Schedule of Common Equivalent Shares were Excluded From Diluted Net Loss Per Share Calculation because their Inclusion would have been Anti-Dilutive

The following common equivalent shares were excluded from the diluted net loss per share calculation because their inclusion would have been anti-dilutive:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Stock options		2,469,553		1,846,853		2,469,553		1,846,853
Non-vested market-based restricted stock units		286,000		—		286,000		—
Non-vested restricted stock units		286,000		—		286,000		—
Total		3,041,553		1,846,853		3,041,553		1,846,853

Schedule of Common Stock Reserved

The amount of such shares of the Company’s common stock reserved for these purposes at September 30, 2017 is as follows:

	Number of Shares
Stock options issued and outstanding		2,469,553
Additional shares available for grant under equity plans		2,436,005
Total		4,905,558

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2017

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments Under Noncancelable Operating Leases

As of September 30, 2017, future minimum lease payments under non-cancelable operating leases are as follows (in thousands):

	Amounts
2017 (for the remaining three months)	$	761
2018		2,659
2019		2,106
2020		1,938
2021		1,892
2022 and thereafter		1,354
Total minimum lease payments	$	10,710

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Business and Nature of Operations - Additional Information (Details) - USD ($)		1 Months Ended	9 Months Ended	12 Months Ended
	Sep. 21, 2016	Apr. 30, 2017	Sep. 30, 2017	Dec. 31, 2016
Business And Nature Of Operations [Line Items]
Common stock, par value			$ 0.001	$ 0.001
Common shares sold pursuant to exercise of employee stock option			370,084	163,968
IPO
Business And Nature Of Operations [Line Items]
Issuance of common stock, public offering, net of issuance costs, shares	6,250,000
Common stock, par value	$ 12.00
Proceeds from issuance of initial public offering gross	$ 66,100,000
Follow-On Public Offering [Member]
Business And Nature Of Operations [Line Items]
Issuance of common stock, public offering, net of issuance costs, shares		553,825
Common stock, par value		$ 19.85
Proceeds from issuance of common stock		$ 9,900,000
Underwriter Purchase Option [Member]
Business And Nature Of Operations [Line Items]
Issuance of common stock, public offering, net of issuance costs, shares		26,825
Selling Stockholders [Member]
Business And Nature Of Operations [Line Items]
Issuance of common stock, public offering, net of issuance costs, shares		3,162,164
Common shares sold pursuant to exercise of employee stock option		73,000
Proceeds from issuance of common stock		$ 0

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Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) Customer	Sep. 30, 2016 Customer	Sep. 30, 2017 USD ($) Customer	Sep. 30, 2016 Customer	Dec. 31, 2016 USD ($)
Short-term investments	$ 24,029,000		$ 24,029,000		$ 0
Money Market Funds and U.S. Government Securities
Cash and cash equivalents fair value disclosure	$ 19,500,000		$ 19,500,000
Customer Concentration Risk | Revenue
Number of customers above 10% threshold | Customer	0	0	0	0
Customer Concentration Risk | Accounts Receivable
Number of customers above 10% threshold | Customer	0	0	0	0
Maximum
Cash and cash equivalent, FDIC insured amount	$ 250,000		$ 250,000

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Accounts Receivable, Net - Schedule of Accounts Receivable Net (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts Receivable Net [Abstract]
Accounts receivable	$ 23,192	$ 18,231
Allowance for doubtful accounts and sales reserve	(919)	(419)
Net accounts receivable	$ 22,273	$ 17,812

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Accounts Receivable, Net - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accounts Receivable Net [Abstract]
Bad debt expense and sales credits reserve	$ 0.2	$ 0.1	$ 0.6	$ 0.1

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Accounts Receivable, Net - Schedule of Changes in Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accounts Receivable Net [Abstract]
Balance, beginning of period	$ (610)	$ (377)	$ (374)	$ (336)
Additions	(195)	(8)	(484)	(95)
Write-offs	11	33	64	79
Balance, end of period	$ (794)	$ (352)	$ (794)	$ (352)

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Accounts Receivable, Net - Schedule of Changes in Sales Reserve (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accounts Receivable Net [Abstract]
Balance, beginning of period	$ (116)	$ (45)	$ (45)	$ (45)
Additions	(24)	0	(104)	0
Write-offs	15	0	24	0
Balance, end of period	$ (125)	$ (45)	$ (125)	$ (45)

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Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 6,888	$ 7,503
Less accumulated depreciation and amortization	(4,044)	(4,580)
Property and equipment, net	2,844	2,923
Furniture and Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 1,794	928
Property and equipment, useful life in years	5 years
Systems Hardware
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 1,623	3,320
Property and equipment, useful life in years	5 years
Office Computers
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,285	1,777
Property and equipment, useful life in years	3 years
Computer and System Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 1,186	$ 1,478
Property and equipment, useful life in years	3 years

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Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Property Plant And Equipment [Abstract]
Depreciation and amortization expense	$ 0.4	$ 0.4	$ 1.5	$ 1.2

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Capitalized Software Development Costs - Summary of Capitalized Software Development Costs (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Capitalized Computer Software Net [Line Items]
Gross carrying amount	$ 35,278	$ 30,658
Accumulated amortization	(25,606)	(21,866)
Net carrying amount	9,672	8,792
Capitalized software development costs [Member]
Capitalized Computer Software Net [Line Items]
Gross carrying amount	$ 35,278	$ 30,658
Amortization period	3 years	3 years
Accumulated amortization	$ (25,606)	$ (21,866)
Net carrying amount	$ 9,672	$ 8,792

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Capitalized Software Development Costs - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Capitalized Computer Software Net [Abstract]
Capitalized software development costs			$ 4.6		$ 5.5
Capitalized software development costs, amortization expense	$ 1.2	$ 1.3	$ 3.7	$ 3.6

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Capitalized Software Development Costs - Schedule of Expected Amortization of Capitalized Software Development Costs (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Capitalized Computer Software Net [Abstract]
2017 (for the remaining three months)	$ 1,475
2018	4,384
2019	3,127
2020	686
Net carrying amount	$ 9,672	$ 8,792

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Fair Value Measurements - Additional Information (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Asset impairment charges	$ 0	$ 0
Short term investments		$ 0
Significant Unobservable Inputs (Level 3)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total financial assets	$ 0

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Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Short-term investments		$ 0
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total financial assets	$ 0
Fair Value Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total financial assets	43,483,000	57,032,000
Contingent consideration	1,705,000	388,000
Total financial liabilities	1,705,000	388,000
Fair Value Measurements, Recurring | Quoted Prices in Active Markets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total financial assets	9,957,000	57,032,000
Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total financial assets	33,526,000
Fair Value Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration	1,705,000	388,000
Total financial liabilities	1,705,000	388,000
Money Market Funds | Fair Value Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	9,957,000	57,032,000
Money Market Funds | Fair Value Measurements, Recurring | Quoted Prices in Active Markets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	9,957,000	$ 57,032,000
U.S. Treasury Securities | Fair Value Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	2,498,000
Short-term investments	7,289,000
U.S. Treasury Securities | Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	2,498,000
Short-term investments	7,289,000
U.S. Government and Agency Securities | Fair Value Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	6,999,000
Short-term investments	16,740,000
U.S. Government and Agency Securities | Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	6,999,000
Short-term investments	$ 16,740,000

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Fair Value Measurements - Summary of Changes in Level 3 Financial Instruments (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning balance, fair value	$ 388
Foreign currency translation	47
Payments made during the year	(3,750)
Ending balance, fair value	1,705
IDV Solutions LLC
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Contingent consideration from IDV acquisition	$ 5,020

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Goodwill and Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	$ 31,343,000		$ 31,343,000		$ 9,676,000
Impairment of goodwill			0		$ 0
Amortization expense for intangible assets	$ 900,000	$ 300,000	$ 2,400,000	$ 900,000

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Goodwill and Intangible Assets - Schedule of Changes in Gross Carrying Amount of Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Goodwill [Line Items]
Goodwill, beginning balance	$ 9,676
Foreign currency translation	471
Goodwill, ending balance	31,343
IDV Solutions LLC
Goodwill [Line Items]
Goodwill, acquisition	21,196
Goodwill, ending balance	$ 21,196

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Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 15,337	$ 7,152
Accumulated amortization	(5,838)	(3,212)
Net carrying amount	9,499	3,940
Developed Technology
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	4,065	1,490
Accumulated amortization	(1,724)	(878)
Net carrying amount	$ 2,341	$ 612
Developed Technology | Weighted Average
Finite Lived Intangible Assets [Line Items]
Weighted average life (years)	3 years 1 month 6 days	3 years 7 months 6 days
Trade Names and Patents
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 2,495	$ 883
Accumulated amortization	(584)	(254)
Net carrying amount	$ 1,911	$ 629
Trade Names and Patents | Weighted Average
Finite Lived Intangible Assets [Line Items]
Weighted average life (years)	5 years 1 month 6 days	6 years 30 days
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 8,537	$ 4,779
Accumulated amortization	(3,450)	(2,080)
Net carrying amount	$ 5,087	$ 2,699
Customer Relationships | Weighted Average
Finite Lived Intangible Assets [Line Items]
Weighted average life (years)	5 years	5 years
Non-compete Arrangement
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 240
Accumulated amortization	(80)
Net carrying amount	$ 160
Non-compete Arrangement | Weighted Average
Finite Lived Intangible Assets [Line Items]
Weighted average life (years)	2 years

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Goodwill and Intangible Assets - Schedule of Expected Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
2017 (for the remaining three months)	$ 932
2018	3,269
2019	2,582
2020	1,350
2021	1,234
2022 and thereafter	132
Net carrying amount	$ 9,499	$ 3,940

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Business Combinations - Additional Information (Details) - USD ($)				3 Months Ended	9 Months Ended
	Sep. 30, 2017	Jan. 27, 2017	Dec. 30, 2016	Sep. 30, 2017	Sep. 30, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Purchase price of acquisition, cash					$ 21,235,000
Payment of contingent consideration					3,750,000
Goodwill	$ 31,343,000			$ 31,343,000	$ 31,343,000	$ 9,676,000
IDV Solutions LLC
Business Acquisition [Line Items]
Date of acquisition of business					Jan. 27, 2017
Purchase price of acquisition, cash		$ 21,200,000
Escrow deposit		2,500,000
Acquisition, preliminary purchase price		5,000,000			$ 26,255,000
Payment of contingent consideration	3,800,000
Weighted average useful life of identified acquired intangible assets					4 years 3 months 4 days
Goodwill	$ 21,196,000	$ 21,200,000		21,196,000	$ 21,196,000
Business acquisition transaction costs				$ 0	$ 100,000
IDV Solutions LLC | Developed Technology
Business Acquisition [Line Items]
Weighted average useful life of identified acquired intangible assets					3 years
IDV Solutions LLC | Customer Relationships
Business Acquisition [Line Items]
Weighted average useful life of identified acquired intangible assets					5 years
IDV Solutions LLC | Non-compete Arrangement
Business Acquisition [Line Items]
Weighted average useful life of identified acquired intangible assets					2 years
IDV Solutions LLC | Trade Names
Business Acquisition [Line Items]
Weighted average useful life of identified acquired intangible assets					5 years
IDV Solutions LLC | Minimum
Business Acquisition [Line Items]
Business acquisition, billings threshold date					Jun. 30, 2017
Weighted average life (years)					2 years
IDV Solutions LLC | Maximum
Business Acquisition [Line Items]
Business acquisition, billings threshold date					Dec. 31, 2017
Weighted average life (years)					5 years
Crisis Commander
Business Acquisition [Line Items]
Acquisition, preliminary purchase price			$ 2,700,000
Business acquisition closing date					Dec. 30, 2016

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Business Combinations - Summary of Allocation of Purchase Consideration and Estimated Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands		9 Months Ended
	Jan. 27, 2017	Sep. 30, 2017	Dec. 31, 2016
Assets acquired
Goodwill		$ 31,343	$ 9,676
IDV Solutions LLC
Assets acquired
Accounts receivable		1,462
Other assets		242
Property and equipment		174
Goodwill	$ 21,200	21,196
Total assets acquired		30,794
Liabilities assumed
Accounts payable and accrued expenses		347
Deferred revenue		4,060
Other liabilities		132
Net assets acquired		26,255
Consideration paid
Cash paid, net of cash acquired		21,235
Acquisition date fair value of contingent consideration		5,020
Total	$ 5,000	26,255
IDV Solutions LLC | Trade Names
Assets acquired
Intangible assets other than goodwill		1,590
IDV Solutions LLC | Acquired Technology
Assets acquired
Intangible assets other than goodwill		2,490
IDV Solutions LLC | Customer Relationships
Assets acquired
Intangible assets other than goodwill		3,400
IDV Solutions LLC | Non-compete Arrangement
Assets acquired
Intangible assets other than goodwill		$ 240

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Business Combinations - Summary of Unaudited Pro Forma Combined Results of Operations (Details) - IDV Solutions LLC - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		8 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Revenue	$ 1,882	$ 2,595	$ 4,900	$ 5,437	$ 7,713
Net income (loss)	$ (691)	$ (48)	$ (2,274)	$ (2,419)	$ (1,189)
Basic and diluted earnings per share pro forma	$ (0.02)	$ 0.00		$ (0.09)	$ (0.09)

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Stockholders' Equity - Additional Information (Details) - $ / shares	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Equity [Abstract]
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares outstanding	0	0
Common stock, shares authorized	100,000,000	100,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, voting rights	Holders of common stock are entitled to one vote per share
Common stock, shares issued	28,203,369	27,150,674
Common stock, shares outstanding	28,203,369	27,150,674

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Stock Plans and Stock-Based Compensation - Additional Information (Details) - shares	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Sep. 15, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for issuance	4,905,558
Stock option granted during period	997,244	292,204
2016 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for issuance			3,893,118
Automatic increase percentage			3.00%
2016 Equity Incentive Plan | Tranche One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for issuance			2,000,000
2008 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting period	4 years
Stock options expiration period	10 years
Stock option granted during period	0
2008 Equity Incentive Plan | Tranche Two | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for issuance			42,934
2008 Equity Incentive Plan | Tranche Three | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for issuance			1,850,184

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Stock Plans and Stock-Based Compensation - 2016 Employee Stock Purchase Plan - Additional Information (Details) - shares		9 Months Ended
	Sep. 15, 2016	Sep. 30, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for issuance		4,905,558
2016 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for issuance	500,000
Purchase price as percentage of fair market value of common stock	85.00%
Shares purchased under the plan		128,786
2016 Employee Stock Purchase Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Increase in number of shares reserved and available for issuance	200,000
2016 Employee Stock Purchase Plan | Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Increase in number of shares reserved and available for issuance, percentage	1.00%
2016 Employee Stock Purchase Plan | Common Stock | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Purchase price, discount percentage	15.00%

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Stock Plans and Stock-Based Compensation - Stock Options - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 2,803	$ 759	$ 4,872	$ 2,165
Intrinsic value of options exercised	2,900		6,500
Intrinsic value of all outstanding options	26,700		26,700
Total unrecognized compensation cost	15,300		15,300
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 2,800	$ 800	$ 4,900	$ 2,200
Weighted-average amortization period			3 years 1 month 14 days

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Stock Plans and Stock-Based Compensation - Schedule of Assumptions Used in Determining Fair Value of Stock Option Grants (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Dividend rate			0.00%
2016 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term (in years)	6 months		6 months
Expected volatility	60.00%		60.00%
Risk-free interest rate	1.18%
Dividend rate	0.00%		0.00%
2016 Employee Stock Purchase Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate			1.18%
2016 Employee Stock Purchase Plan | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate			0.45%
Employee Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term (in years)	6 years
Expected volatility	60.00%	70.00%	60.00%	70.00%
Risk-free interest rate	1.82%
Risk-free interest rate, minimum		1.21%	1.82%	1.21%
Risk-free interest rate, maximum	1.93%	1.25%	2.47%	1.86%
Dividend rate	0.00%	0.00%	0.00%	0.00%
Employee Stock Options | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value per share on grant date	$ 23.60	$ 9.02	$ 24.87	$ 9.02
Expected term (in years)		6 years 1 month 9 days	6 years 1 month 9 days	6 years 1 month 9 days
Employee Stock Options | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value per share on grant date	$ 23.17	$ 8.94	$ 18.05	$ 8.51
Expected term (in years)		5 years 11 months 26 days	6 years	5 years 3 months 15 days

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Stock Plans and Stock-Based Compensation - Schedule of Assumptions Used in Determining Fair Value of Stock Option Grants (Parenthetical) (Details)	9 Months Ended
	Sep. 30, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Dividend rate	0.00%

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Stock Plans and Stock-Based Compensation - Schedule of Stock Option Activity (Details) - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock options outstanding, Beginning Balance	1,884,425	1,821,722
Stock options outstanding, Granted	997,244	292,204
Stock options outstanding, Exercised	(370,084)	(163,968)
Stock options outstanding, Forfeited	(42,032)	(65,533)
Stock options outstanding, Ending Balance	2,469,553	1,884,425
Weighted average exercise price, Beginning Balance	$ 10.02	$ 8.68
Weighted average exercise price, Granted	22.47	14.75
Weighted average exercise price, Exercised	5.64	4.30
Weighted average exercise price, Forfeited	15.50	8.03
Weighted average exercise price, Ending Balance	$ 15.61	$ 10.02

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Stock Plans and Stock-Based Compensation - Schedule of Stock Options Outstanding and Options Exercisable and Vested (Details) - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock options, outstanding	2,469,553	1,884,425	1,821,722
Stock options, remaining contractual life (years)	8 years 4 months 9 days	7 years 10 months 10 days
Stock options ,weighted average exercise price	$ 15.61	$ 10.02	$ 8.68
Stock options, exercisable	768,956	809,900
Stock options exercisable, remaining contractual life (years)	7 years 11 days	7 years 1 month 17 days
Stock options exercisable, weighted average exercise price	$ 9.45	$ 6.81

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Stock Plans and Stock-Based Compensation - Schedule of Vested and Nonvested Stock Option Activity (Details) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Options outstanding, Vested	768,956	809,900
Weighted average exercise price, Vested	$ 9.45	$ 6.81
Options outstanding, Nonvested	1,700,597	1,074,525
Weighted average exercise price, Nonvested	$ 18.40	$ 12.44

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Stock Plans and Stock-Based Compensation - Restricted Stock Units - Additional Information (Details) - Restricted Stock Units - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation, number of stock unit grants in period	286,000
stock-based compensation, stock issued		$ 400,000	$ 0	$ 400,000	$ 0
Unrecognized compensation expense		$ 6,300,000		$ 6,300,000
Weighted-average amortization period				2 years 9 months 19 days

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Stock Plans and Stock-Based Compensation - Market-Based Restricted Stock Units - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		$ 2,803	$ 759	$ 4,872	$ 2,165
Dividend rate				0.00%
Market-Based Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation, number of stock unit grants in period	286,000
Share Based compensation threshold consecutive trading days	30 days
Share-based compensation, share price on the date of issuance	$ 23.60
Stock-based compensation expense		1,000		$ 1,000
Risk-free interest rate				2.26%
Dividend rate				0.00%
Expected term (in years)				10 years
Expected volatility				60.00%
Unrecognized compensation expense		$ 6,800		$ 6,800
Weighted-average amortization period				1 year 1 month 7 days
Market-Based Restricted Stock Units | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation, vesting stock price trigger	35
Market-Based Restricted Stock Units | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation, vesting stock price trigger	$ 55

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Stock Plans and Stock-Based Compensation - Schedule of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 2,803	$ 759	$ 4,872	$ 2,165
Cost of Revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	141	46	266	135
Sales and Marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	691	211	1,250	503
Research and Development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	416	87	738	263
General and Administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 1,555	$ 415	$ 2,618	$ 1,264

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Basic and Diluted Net Loss Per Share - Schedule of Common Equivalent Shares were Excluded From Diluted Net Loss Per Share Calculation because their Inclusion would have been Anti-Dilutive (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted net loss per share	3,041,553	1,846,853	3,041,553	1,846,853
Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted net loss per share	2,469,553	1,846,853	2,469,553	1,846,853
Non-vested Market-Based Restricted Stock Units
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted net loss per share	286,000		286,000
Non-vested Restricted Stock Units
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted net loss per share	286,000		286,000

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Basic and Diluted Net Loss Per Share - Summary of Common Stock Reserved (Details)	Sep. 30, 2017 shares
Class Of Stock [Line Items]
Amount of common stock reserved	4,905,558
Stock Options
Class Of Stock [Line Items]
Amount of common stock reserved	2,469,553
Additional Shares Available for Grant Under Equity Plan
Class Of Stock [Line Items]
Amount of common stock reserved	2,436,005

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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Abstract]
(Provision for) benefit from income taxes	$ 79	$ (35)	$ 65	$ 75
Effective income tax rate	(1.83%)	1.35%	(0.47%)	(0.86%)
Unrecognized tax benefits	$ 300		$ 300
Unrecognized tax benefits that would favorably impact effective tax rate	$ 300		$ 300

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Segment Information - Additional Information (Details)	9 Months Ended
	Sep. 30, 2017 Segment
Segment Reporting [Abstract]
Number of operating segment	1

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Geographic Concentrations - Additional Information (Details) - United States - Geographic Concentration Risk	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue
Concentration Risk [Line Items]
Concentration percentage	90.00%	90.00%	90.00%	89.00%
Minimum [Member] | Property and Equipment
Concentration Risk [Line Items]
Concentration percentage			88.00%

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Commitments and Contingencies - Additional Information (Details) - USD ($)	1 Months Ended		3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jan. 31, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Loss Contingencies [Line Items]
Minimum lease payments			$ 10,710,000		$ 10,710,000
Rent expense			800,000	$ 400,000	1,700,000	$ 1,200,000
Revolving Credit Facility | secured Debt
Loss Contingencies [Line Items]
Line of credit drawn amount			0		0
Revolving Credit Facility | secured Debt | Western Alliance Bank
Loss Contingencies [Line Items]
Line of credit facility			$ 15,000,000		$ 15,000,000
Line of credit facility, expiration date					Jun. 30, 2018
Revolving Credit Facility | secured Debt | Western Alliance Bank | Prime Rate
Loss Contingencies [Line Items]
Line of credit, interest rate					0.75%
Massachusetts
Loss Contingencies [Line Items]
Minimum lease payments							$ 7,800,000
Florida
Loss Contingencies [Line Items]
Minimum lease payments		$ 1,400,000
Operating lease, term of contract		7 years
China
Loss Contingencies [Line Items]
Increase in future minimum payments	$ 800,000
United Kingdom
Loss Contingencies [Line Items]
Increase in future minimum payments	$ 200,000

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Commitments and Contingencies - Schedule of Future Minimum Lease Payments (Details) $ in Thousands	Sep. 30, 2017 USD ($)
Future minimum lease payments
2017 (for the remaining three months)	$ 761
2018	2,659
2019	2,106
2020	1,938
2021	1,892
2022 and thereafter	1,354
Total minimum lease payments	$ 10,710