Mattersight 10-K 16 Mar 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Mar. 06, 2017	Jun. 30, 2016
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Trading Symbol	MATR
Entity Registrant Name	Mattersight Corp
Entity Central Index Key	1,094,348
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		32,568,613
Entity Public Float			$ 67,886,971

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 12,538	$ 15,407
Receivables net of allowances of $311 and $24, respectively	8,508	4,863
Prepaid expenses	4,440	4,582
Other current assets	296	235
Total current assets	25,782	25,087
Equipment and leasehold improvements, net of accumulated depreciation and amortization of $19,748 and $14,805, respectively	9,576	8,523
Goodwill	972	972
Intangibles assets, net of amortization of $3,820 and $3,351, respectively	3,201	3,353
Other long-term assets (includes $4,210 in restricted cash at December 31, 2016)	6,033	2,467
Total assets	45,564	40,402
Current Liabilities:
Short-term debt	738
Accounts payable	1,835	1,223
Accrued compensation and related costs	2,302	2,761
Unearned revenue	4,911	6,378
Capital leases	1,982	1,819
Other current liabilities	3,374	1,796
Total current liabilities	15,142	13,977
Long-term debt	20,839
Long-term unearned revenue	757	1,597
Long-term capital leases	1,602	1,614
Other long-term liabilities	5,945	5,689
Total liabilities	44,285	22,877
Series B convertible preferred stock, $0.01 par value; 5,000,000 shares authorized and designated; 1,637,948 and 1,644,768 shares issued and outstanding at December 31, 2016 and December 31, 2015, respectively, with a liquidation preference of $10,985 and $10,443 at December 31, 2016 and December 31, 2015, respectively	8,354	8,388
Stockholders’ Equity:
Preferred stock, $0.01 par value; 35,000,000 shares authorized; none issued and outstanding
Common stock, $0.01 par value; 50,000,000 shares authorized; 27,511,361 and 27,636,853 shares issued at December 31, 2016 and December 31, 2015, respectively; and 26,622,706 and 25,849,876 outstanding at December 31, 2016 and December 31, 2015, respectively	275	276
Additional paid-in capital	264,214	264,212
Accumulated deficit	(263,062)	(242,085)
Treasury stock, at cost, 888,655 and 1,786,977 shares at December 31, 2016 and December 31, 2015, respectively	(4,455)	(9,239)
Accumulated other comprehensive loss	(4,047)	(4,027)
Total stockholders’ (deficit) equity	(7,075)	9,137
Total liabilities and stockholders’ equity	$ 45,564	$ 40,402

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Allowances for receivables	$ 311	$ 24
Accumulated depreciation and amortization of equipment and leasehold improvements	19,748	14,805
Amortization of intangibles	3,820	$ 3,351
Restricted cash	$ 4,210
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	35,000,000	35,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	27,511,361	27,636,853
Common stock, shares outstanding	26,622,706	25,849,876
Treasury stock, shares	888,655	1,786,977
Series B Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	1,637,948	1,644,768
Preferred stock, shares outstanding	1,637,948	1,644,768
Liquidation preference	$ 10,985	$ 10,443

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue:
Subscription revenue	$ 38,720	$ 36,091	$ 26,372
Other revenue	3,377	3,821	3,947
Total revenue	42,097	39,912	30,319
Operating expenses:
Cost of subscription revenue	10,365	8,072	6,820
Cost of other revenue	3,423	2,604	2,579
Total cost of revenue, exclusive of depreciation and amortization	13,788	10,676	9,399
Research and development	12,502	13,891	12,545
Sales and marketing	16,848	13,754	9,102
General and administrative	11,827	11,705	9,140
Depreciation and amortization	5,478	4,450	3,022
Amortization of intangibles	468	492	106
Total operating expenses	60,911	54,968	43,314
Operating loss	(18,814)	(15,056)	(12,995)
Non-operating income (expense):
Interest and other borrowing costs	(2,319)	(600)	(1,092)
Change in fair value of warrant liability	167	3	(124)
Other non-operating income	39	10	2
Total non-operating income (expense)	(2,113)	(587)	(1,214)
Loss before income taxes	(20,927)	(15,643)	(14,209)
Income tax provision	(50)	(38)	(23)
Net loss	(20,977)	(15,681)	(14,232)
Dividends related to 7% Series B convertible preferred stock	(586)	(588)	(589)
Net loss available to common stockholders	$ (21,563)	$ (16,269)	$ (14,821)
Per share of common stock:
Basic net loss available to common stock holders	$ (0.86)	$ (0.70)	$ (0.74)
Diluted net loss available to common stock holders	$ (0.86)	$ (0.70)	$ (0.74)
Shares used to calculate basic net loss per share	25,209	23,264	19,923
Shares used to calculate diluted net loss per share	25,209	23,264	19,923
Total Cost of Revenue [Member]
Stock-based compensation expense is included in individual line items above:
Stock-based compensation expense	$ 371	$ 255	$ 181
Research and Development [Member]
Stock-based compensation expense is included in individual line items above:
Stock-based compensation expense	1,134	1,075	1,326
Sales and Marketing [Member]
Stock-based compensation expense is included in individual line items above:
Stock-based compensation expense	1,697	1,330	696
General and Administrative [Member]
Stock-based compensation expense is included in individual line items above:
Stock-based compensation expense	$ 2,122	$ 2,742	$ 1,975

Consolidated Statements of Ope5

Consolidated Statements of Operations (Parenthetical)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Series B Convertible Preferred Stock [Member]
Convertible preferred stock interest rate	7.00%	7.00%	7.00%

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (20,977)	$ (15,681)	$ (14,232)
Other comprehensive loss:
Effect of currency translation	(20)	(1)	7
Comprehensive net loss	$ (20,997)	$ (15,682)	$ (14,225)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows from Operating Activities:
Net loss	$ (20,977)	$ (15,681)	$ (14,232)
Adjustments to reconcile net loss to net cash used in operating activities:
Discount accretion and other debt-related costs	436
Depreciation and amortization	5,946	4,942	3,128
Stock-based compensation	5,324	5,402	4,178
Provision for uncollectible amounts	287
Change in fair value of warrant liability	(167)	(3)	124
Changes in assets and liabilities:
Receivables	(3,932)	(1,403)	(1,076)
Prepaid expenses	71	(623)	(1,021)
Other current assets	(62)	(118)	192
Other long-term assets	(3,615)	1,028	936
Accounts payable	375	(29)	352
Accrued compensation and related costs	(459)	520	397
Unearned revenue	(2,307)	(2,416)	310
Other current liabilities	722	(1,675)	(73)
Other long-term liabilities	582	3,667	(149)
Total adjustments	3,201	9,292	7,298
Net cash used in operating activities	(17,776)	(6,389)	(6,934)
Cash Flows from Investing Activities:
Capital expenditures	(3,714)	(4,917)	(766)
Investment in intangible assets	(349)	(171)	(251)
Net cash used in investing activities	(4,063)	(5,088)	(1,017)
Cash Flows from Financing Activities:
Proceeds from term loan and other borrowings	28,880
Repayments of term loan and other borrowings	(6,945)	(750)
Proceeds from line of credit	16,246	15,000	7,000
Repayments of line of credit	(16,246)	(15,000)	(7,000)
Fees paid for issuance of term loan	(724)
Proceeds from issuance of common stock, net		15,942	11,138
Principal payments on capital lease obligations	(2,296)	(2,116)	(1,701)
Cash paid to satisfy tax withholding upon employee vesting	(440)	(874)	(797)
7% Series B convertible preferred stock dividend	(10)
Proceeds from exercise of stock options	236	241	13
Proceeds from employee stock purchase	289	212	152
Net cash provided by financing activities	18,990	12,655	8,805
Effect of exchange rate changes on cash and cash equivalents	(20)	(9)	(8)
(Decrease) increase in cash and cash equivalents	(2,869)	1,169	846
Cash and cash equivalents, beginning of period	15,407	14,238	13,392
Cash and cash equivalents, end of period	12,538	15,407	14,238
Non-Cash Investing and Financing Transactions:
Capital lease obligations incurred	2,447	2,737	1,692
Capital equipment purchased on credit	2,447	2,737	1,692
Financing of intellectual property purchased, at fair value		1,958
Issuance of warrant, at fair value	924		380
Supplemental Disclosures of Cash Flow Information:
Interest paid	$ 1,343	$ 314	$ 266

Consolidated Statements of Cas8

Consolidated Statements of Cash Flows (Parenthetical)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Series B Convertible Preferred Stock [Member]
Convertible preferred stock interest rate	7.00%	7.00%	7.00%

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Issued [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning balance at Dec. 31, 2013	$ 3,956	$ 205	$ 228,038	$ (212,172)	$ (8,082)	$ (4,033)
Beginning balance, shares at Dec. 31, 2013		20,465,984
Proceeds from issuance of common stock, net	11,138	$ 29	11,109
Proceeds from issuance of Common Stock, shares		2,891,566
Issuance of common stock for option awards exercised	$ 14		14
Issuance of common stock for option awards exercised, shares	2,914	2,914
Issuance of Common Stock for warrants exercised	$ 529	$ 1	528
Issuance of Common Stock for warrants exercised, shares		86,366
Issuance of Common Stock related to employee stock programs	194	$ 5	189
Issuance of Common Stock related to employee stock programs, shares		643,706
Amortization/forfeitures of unearned compensation	3,988		3,988
Amortization/forfeitures of unearned compensation, shares		(44,496)
Restricted stock vestings tax withholding	(797)				(797)
Series B convertible preferred stock conversions	5		5
Series B convertible preferred stock conversions, shares		937
Series B convertible preferred stock dividend	(589)		(589)
Other comprehensive gain (loss)	7					7
Net loss	(14,232)			(14,232)
Ending balance at Dec. 31, 2014	4,213	$ 240	243,282	(226,404)	(8,879)	(4,026)
Ending balance, shares at Dec. 31, 2014		24,046,977
Proceeds from issuance of common stock, net	15,942	$ 27	15,915
Proceeds from issuance of Common Stock, shares		2,728,712
Issuance of common stock for option awards exercised	$ 282		282
Issuance of common stock for option awards exercised, shares	59,638	41,750
Issuance of Common Stock for warrants exercised	$ 378	$ 1	377
Issuance of Common Stock for warrants exercised, shares		50,184
Issuance of Common Stock related to employee stock programs	271	$ 8	263
Issuance of Common Stock related to employee stock programs, shares		819,632
Amortization/forfeitures of unearned compensation	5,178		5,178
Amortization/forfeitures of unearned compensation, shares		(53,819)
Restricted stock vestings tax withholding	(874)				(874)
Reissuance of treasury shares			(514)		514
Series B convertible preferred stock conversions	17		17
Series B convertible preferred stock conversions, shares		3,417
Series B convertible preferred stock dividend	(588)		(588)
Other comprehensive gain (loss)	(1)					(1)
Net loss	(15,681)			(15,681)
Ending balance at Dec. 31, 2015	9,137	$ 276	264,212	(242,085)	(9,239)	(4,027)
Ending balance, shares at Dec. 31, 2015		27,636,853
Issuance of common stock for option awards exercised	$ 236		236
Issuance of common stock for option awards exercised, shares	56,250
Issuance of Common Stock related to employee stock programs	$ 383		383
Issuance of Common Stock related to employee stock programs, shares		88,282
Amortization/forfeitures of unearned compensation	5,158	$ (1)	5,159
Amortization/forfeitures of unearned compensation, shares		(220,594)
Restricted stock vestings tax withholding	(440)				(440)
Reissuance of treasury shares			(5,224)		5,224
Series B convertible preferred stock conversions	34		34
Series B convertible preferred stock conversions, shares		6,820
Series B convertible preferred stock dividend	(586)		(586)
Other comprehensive gain (loss)	(20)					(20)
Net loss	(20,977)			(20,977)
Ending balance at Dec. 31, 2016	$ (7,075)	$ 275	$ 264,214	$ (263,062)	$ (4,455)	$ (4,047)
Ending balance, shares at Dec. 31, 2016		27,511,361

Description of Business

Description of Business	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Description of Business	Note One — Description of Business Mattersight Corporation and its subsidiaries (collectively, we, us, or ours) is a leader in behavioral analytics and a pioneer in personality-based software products. Using a stack of innovative, patented applications, including predictive behavioral routing, performance management, quality assurance, and predictive analytics (collectively, Behavioral Analytics), we analyze and predict customer behavior based on the language exchanged between agents and customers during brand interactions. These insights are then used to facilitate more effective and effortless customer conversations, which, in turn, drive increased customer satisfaction and retention, employee engagement, and operating efficiency. Our analytics are based on millions of proprietary algorithms and the application of unique behavioral models. Our solutions have influenced hundreds of millions of shorter, more satisfying customer interactions for leading companies in the healthcare, insurance, financial services, technology, telecommunications, cable, utilities, education, hospitality, and government industries. Our multi-channel technology captures the unstructured data of voice interactions (conversations), related customer and employee data, and employee desktop activity, and applies millions of proprietary algorithms against those interactions. Each interaction contains hundreds of attributes that get scored and ultimately detect patterns of behavior or business process that provide the transparency and predictability necessary to enhance revenue, improve the customer experience, improve efficiency, and predict and navigate outcomes. Adaptive across industries, programs, and industry-specific processes, our Behavioral Analytics offerings enable our clients to drive measurable economic benefit through the improvement of contact center performance, customer satisfaction and retention, fraud reduction, and streamlined back office operations. Specifically, through our Behavioral Analytics offerings, we: • Identify optimal customer/employee behavioral pairing for call routing; • Identify and understand customer personality; • Automatically measure customer satisfaction and agent performance on every analyzed call; • Improve rapport between agent and customer; • Reduce call handle times while improving customer satisfaction; • Identify opportunities to improve self-service applications; • Improve cross-sell and up-sell success rates; • Improve the efficiency and effectiveness of collection efforts; • Measure and improve supervisor effectiveness and coaching; • Improve agent effectiveness by analyzing key attributes of desktop usage; • Predict likelihood of customer attrition; • Predict customer satisfaction and Net Promoter Scores ® • Predict likelihood of debt repayment; • Predict likelihood of a sale or cross-sell; and • Identify fraudulent callers and improve authentication processes. Our mission is to help brands have more effective and effortless conversations with their customers. Using a suite of innovative personality-based software applications, we can analyze and predict customer behavior based on the language exchanged during service and sales interactions. We operate a highly scalable, flexible, and adaptive application platform to enable clients to implement and operate these applications.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note Two — Summary of Significant Accounting Policies Consolidation The consolidated financial statements include the accounts of Mattersight and all of its subsidiaries. All significant intercompany transactions have been eliminated. Use of Estimates The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America (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 financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those amounts. Basis of Presentation On January 1, 2016, the company adopted Accounting Standards Update (ASU) 2015-03, Interest — Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. ASU 2015-03 simplifies the presentation of debt issuance costs by conforming the presentation of those costs to that of debt discounts and premiums. The standard requires that unamortized debt issuance costs related to a recognized debt liability be presented on the balance sheet as a direct deduction from the carrying amount of the debt liability. Long-term debt is shown net of unamortized debt issuance costs in the company’s consolidated balance sheets. In August 2014, the Financial Accounting Standards Board (FASB) issued ASU No. 2014-15: Presentation of Financial Statements - Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern. The standard provides guidance on determining when and how to disclose going concern uncertainties in the financial statements. Management will be required to perform interim and annual assessments of the Company’s ability to continue as a going concern within one year of the date financial statements are issued. ASU 2014-15 is effective for annual and interim periods ending after December 15, 2016, with early adoption permitted. The Company adopted this standard during 2016 with no significant impact on the Company financial statement disclosure. See Note Twenty—Subsequent Event. Revenue Recognition Subscription Revenue Subscription revenue consists of revenue derived from Mattersight’s Behavioral Analytics service offerings, including predictive behavioral routing, performance management, quality assurance, predictive analytics, and marketing managed services revenue derived from the performance of services on a continual basis. Subscription revenue is based on a number of factors, such as the number of users to whom the Company provides one or more of its Behavioral Analytics offerings, the type and number of Behavioral Analytics offerings deployed to the client, and in some cases, the number of hours of calls analyzed during the relevant month of the subscription period. Subscription periods generally range from one to three years after the go-live date or, in cases where the Company contracts with a client for a short-term pilot of a Behavioral Analytics offering prior to committing to a longer subscription period, if any, the subscription or pilot periods generally range from three to twelve months after the go-live date. This revenue is recognized over the applicable subscription period, as the service is performed for the client. Other Revenue Other revenue consists of deployment revenue, professional services revenue, and reimbursed expenses revenue. Deployment revenue consists of planning, deployment, and training fees derived from Behavioral Analytics contracts. These fees, which are considered to be installation fees related to Behavioral Analytics subscription contracts, are deferred until the installation is complete and are then recognized over the applicable subscription or pilot period. Installation costs incurred are deferred up to an amount not to exceed the amount of deferred installation revenue and additional amounts that are recoverable based on the contractual arrangement. These costs are included in prepaid expenses and other long-term assets. Such costs are amortized over the subscription period. Costs in excess of the foregoing revenue amount are expensed in the period incurred. Professional services revenue primarily consists of fees charged to the Company’s clients to provide post-deployment follow-on consulting services, which include custom data analysis, the implementation of enhancements, and training, as well as fees generated from the Company’s operational consulting services. Professional services are performed for the Company’s clients on a fixed-fee or time-and-materials basis. Revenue is recognized as the services are performed, with performance generally assessed on the ratio of actual hours incurred to-date compared with the total estimated hours over the entire term of the contract. Reimbursed expenses revenue includes billable costs related to travel and other out-of-pocket expenses incurred while performing services for the Company’s clients. An equivalent amount of reimbursable expenses is included in total cost of other revenue. Total Cost of Revenue, Exclusive of Depreciation and Amortization Total cost of revenue primarily consists of labor costs, including salaries, fringe benefits, and incentive compensation, royalties, and other client-related third-party outside services. Total cost of revenue excludes depreciation and amortization. If the Company’s estimates indicate that a contract loss will occur, then a loss provision is recorded in the period in which the loss first becomes probable and can be reasonably estimated. Research and Development Research and development expenses consist primarily of salaries, incentive compensation, commissions, and employee benefits for product development personnel. The personnel costs included in this item are net of any labor costs directly related to the generation of revenue, which are represented in total cost of revenue. Sales and Marketing Sales and marketing expenses consist primarily of salaries, incentive compensation, commissions, and employee benefits for business development, account management, and marketing. General and Administrative General and administrative expenses consist primarily of salaries, incentive compensation, and employee benefits for administrative personnel, as well as facilities costs, a provision for uncollectible amounts, and costs for the Company’s corporate technology infrastructure and applications. Loss Per Common Share The per common share basic net loss available to holders of the Company’s Common Stock, par value $0.01 per share (Common Stock), has been computed by dividing the net loss available to holders of Common Stock for each period presented by the weighted average shares outstanding. The per common share diluted loss available to holders of Common Stock has been computed by dividing the net loss available to holders of Common Stock by the weighted average shares outstanding plus the dilutive effect of Common Stock equivalents, which is primarily related to our 7% Series B Convertible Preferred Stock (Series B Stock), using the treasury stock method. In periods in which there was a loss, the dilutive effect of Common Stock equivalents is not included in the diluted loss per share calculation as it was antidilutive. Fair Value Measurements Fair value is an exit price and establishes a three-tier valuation hierarchy for ranking the quality and reliability of the information used to determine fair values. The first tier, Level 1, uses quoted market prices in active markets for identical assets or liabilities. Level 2 uses inputs, other than quoted market prices for identical assets or liabilities in active markets, which are observable either directly or indirectly. Level 3 uses unobservable inputs in which there are little or no market data, and requires the entity to develop its own assumptions. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. Cash and Cash Equivalents The Company considers all highly liquid investments readily convertible into known amounts of cash (with original purchased maturities of three months or less) to be cash equivalents. Concentration of Credit Risk Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash and cash equivalents, which includes foreign bank accounts, and receivables. Cash and cash equivalents consist of money market funds and deposits with high credit quality financial institutions. At times, such deposits may be in excess of the Federal Deposit Insurance Corporation insurance limit. Accounts in the United States are insured by the Federal Deposit Insurance Corporation up to $250,000. At December 31, 2016, the Company had non-interest-bearing cash and interest-bearing money market balances in excess of federally insured limits by $11.8 million. The Company’s receivables are derived from billings to clients located primarily in the United States and are denominated in U.S. dollars. For 2016, there were three clients that accounted for 10% or more of total revenue: United HealthCare Services, Inc.; CVS Caremark Corporation, and Progressive Casualty Insurance Company; which accounted for 33%, 15%, and 11% of total revenue, respectively. For 2015, there were three clients that accounted for 10% or more of total revenue: United HealthCare Services, Inc.; Progressive Casualty Insurance Company; and CVS Caremark Corporation, which accounted for 31%, 15%, and 13% of total revenue, respectively. For 2014, there were three clients that accounted for 10% or more of total revenue: United HealthCare Services, Inc.; Progressive Casualty Insurance Company; and Health Care Service Corporation; which accounted for 25%, 20%, and 11% of total revenue, respectively. As of December 31, 2016, two clients, United HealthCare Services, Inc. and CVS Caremark Corporation, accounted for 41% and 27% of total gross accounts receivable, respectively. As of December 31, 2015, two clients, United HealthCare Services, Inc. and CVS Pharmacy, Inc. accounted for 46% and 19% of total gross accounts receivable, respectively. Equipment and Leasehold Improvements Computers, software, furniture, and equipment are carried at cost and depreciated on a straight-line basis over their estimated useful lives. Leasehold improvements are amortized over the lesser of the useful life or the lease term. The useful life for computers and software is between one and three years. For enterprise software applications where a longer useful life is deemed appropriate, five years is used. For furniture and equipment, a useful life of five years is used. Maintenance and repair costs are expensed as incurred. The cost and related accumulated depreciation of assets sold or disposed of are eliminated from the respective accounts and the resulting gain or loss is included in the statements of operations. The carrying value of equipment and leasehold improvements is only reviewed if a triggering event occurs to assess recoverability based on future undiscounted cash flows. An impairment loss, if any, would be measured as the excess of the carrying value over the fair value. The Company accounts for software developed for internal use in accordance with the guidance provided under ASC Topic 350, Intangibles – Goodwill and Other , The Company leases certain equipment using both capital leases and operating leases. Assets leased under capital leases are recorded at the lesser of the amount financed and present value of future lease payments and depreciated on a straight line basis. All capital leases are for terms of twenty-four, thirty, or thirty-six months. Goodwill Goodwill is tested annually for impairment or more frequently if an event or circumstance indicates that an impairment loss may have been incurred. In performing our annual impairment test, we first perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value, including goodwill. If it is concluded that this is the case, we perform a detailed quantitative assessment using a two-step test approach. In the first step, the fair value of the reporting unit is compared with its carrying value. If the fair value exceeds the carrying value, then goodwill is not impaired and no further testing is performed. The second step is performed if the carrying value exceeds the fair value. The implied fair value of the reporting unit’s goodwill must be determined and compared with the carrying value of the goodwill. If the carrying value of a reporting unit’s goodwill exceeds its implied fair value, then an impairment loss equal to the difference will be recorded. The Company currently operates in a single business segment or reporting unit. In 2016, after completing our annual qualitative review, we concluded that it was not more likely than not that the carrying value of our reporting unit exceeded its fair value. Accordingly, we concluded that further quantitative analysis and testing was not required, and no goodwill impairment charge was required. Intangible Assets Intangible assets subject to amortization are assessed for impairment at least annually or when indicated by a change in economic or operational circumstances. The impairment assessment of these assets requires management to first compare the book value of the amortizing asset to undiscounted cash flows only if there are indicators of a change in circumstances. If the book value exceeds the undiscounted cash flows, management is then required to estimate the fair value of the assets and record an impairment loss for the excess of the carrying value over the fair value and annually challenge the useful lives. Income Taxes The Company uses an asset and liability approach for financial accounting and reporting of income taxes. Deferred income taxes are provided when tax laws and financial accounting standards differ with respect to the amount of income for the year, the basis of assets and liabilities and for tax loss carryforwards. The Company has recorded income tax valuation allowances on its net deferred tax assets to account for the unpredictability surrounding the timing of realization of its U.S. and non-U.S. net deferred tax assets due to continuing operating losses. The valuation allowances may be reversed at a point in time when management determines realization of these tax assets has become more likely than not, based on a return to or achieving predictable levels of profitability. The Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position should be measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Significant judgment is used to determine the likelihood of the benefit. Unearned Revenue Unearned revenue consists of billings or payments received in advance of revenue recognition for Behavioral Analytics contracts. Unearned revenue is recognized as revenue when the applicable recognition criteria are met. Stockholders’ Equity Stockholders’ equity includes Common Stock issued, additional paid-in capital, accumulated deficit, treasury stock, and accumulated other comprehensive loss. The 1.6 million shares of Series B Stock outstanding as of December 31, 2016 and 2015 are not classified as permanent equity or a liability in the accompanying balance sheets. These shares of Series B Stock are conditionally redeemable and do not meet the definition of a mandatorily redeemable financial instrument. The holders of Series B Stock have the ability to initiate a redemption upon the occurrence of certain events that are considered outside the Company’s control. Foreign Currency Translation The functional currencies for the Company’s foreign subsidiaries are their local currencies. All assets and liabilities of foreign subsidiaries are translated to U.S. dollars at end of period exchange rates. The resulting translation adjustments are recorded as a component of stockholders’ equity and comprehensive loss. Income and expense items are translated at average exchange rates prevailing during the period. Stock-Based Compensation Stock-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense over the vesting period. Determining fair value of stock-based awards at the grant date requires certain assumptions. The Company uses historical information as the primary basis for the selection of expected life, expected volatility, expected dividend yield assumptions, and anticipated forfeiture rates. The risk-free interest rate is selected based on the yields from U.S. Treasury Strips with a remaining term equal to the expected term of the options being valued. Stock Warrants In accordance with ASC 480-10, Distinguishing Liabilities from Equity Segments The Company operates in a single business segment, focused primarily on Behavioral Analytics. Recent Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2017-04, Intangibles—Goodwill and Other, simplifying the test for goodwill impairment. This ASU simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value. This ASU is effective for reporting periods beginning after December 15, 2019 and interim periods within those annual periods. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows: Restricted Cash, to clarify how restricted cash should be presented in the cash flow statement. This update is effective for reporting periods beginning after December 15, 2017 and interim periods within those annual periods. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory, which requires an entity to recognize the income tax consequences of intra-entity transfers, other than inventory, when the transfer occurs. Under current guidance in U.S. GAAP, in the case of depreciable or amortizable assets, the income tax consequences are deferred at the time of the intra-entity transfer and recognized as the assets are depreciated or amortized. This ASU is effective for reporting periods beginning after December 15, 2017 and interim periods within those annual periods, In August 2016, the FASB issued ASU No 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments, which applies to all entities that are required to present a statement of cash flows under Topic 230. ASU 2016-15 addresses the presentation and classification of cash flows related to (i) debt prepayment or debt extinguishment costs, (ii) settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing, (iii) contingent consideration payments made after a business combination, (iv) proceeds from the settlement of insurance claims, (v) proceeds from the settlement of corporate-owned life insurance policies (including bank-owned life insurance policies), (vi) distributions received from equity method investees, (vii) beneficial interests in securitization transactions, and (viii) separately identifiable cash flows and application of the predominance principle. The company is currently evaluating the impact of this update on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments. This update broadens the information that an entity must consider in developing its expected credit loss estimate for assets measured either collectively or individually. The update is effective for annual periods beginning after December 15, 2019. The company is currently evaluating the impact of this update on its consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting (Topic 718). This update is intended to simplify the accounting for share-based payment transactions, including the income tax impacts, classification of awards as either equity or liabilities, and presentation on the statement of cash flows. The guidance also allows employers to repurchase more of an employee’s shares for tax withholding purposes without triggering liability accounting. In addition, the guidance allows for a policy election to account for forfeitures as they occur rather than on an estimated basis. The update is effective for annual periods beginning after December 15, 2016. The company is currently evaluating the impact of this update on its consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). This update is intended to improve financial reporting of leasing transactions. The ASU will require organizations that lease assets to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. This update is effective for periods beginning after December 15, 2018. The company is currently evaluating the impact of this update on its consolidated financial statements. In November 2015, the FASB issued ASU No. 2015-17, Income Taxes (Topic 740). This update simplifies the presentation of deferred income taxes and requires that deferred income tax liabilities and assets be classified as noncurrent in a classified statement of financial position. The update is effective for reporting periods beginning after December 15, 2016 and interim periods within those annual periods. The adoption of ASU 2015-17 is not expected to have a material impact on the company’s consolidated financial statements. In May 2014, FASB issued ASU 2014-09: Revenue from Contracts with Customers (Topic 606). This update sets forth a new five-step revenue recognition model that replaces the prior revenue recognition guidance in its entirety and is intended to eliminate numerous industry-specific pieces of revenue recognition guidance that have historically existed. The underlying principle of the new standard is that an organization will recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects what it expects in exchange for the goods or services. ASU 2014-09 provides alternative methods of initial adoption and is effective for annual periods beginning after December 15, 2017 and interim periods within those annual periods. Early adoption is not permitted prior to December 15, 2016. Based on its preliminary assessment, the company generally does not expect a significant change in revenue recognition when ASU 2014-09 is adopted. The Company will be putting additional processes and controls in place to enable compliance with ASU 2014-09’s disclosure requirements.

Receivables

Receivables	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Receivables	Note Three — Receivables Receivables consist of the following: December 31, 2016 December 31, 2015 Amounts billed to clients $ 8.8 $ 4.2 Unbilled revenue — 0.7 8.8 4.9 Allowances for doubtful accounts 0.3 — Receivables, net $ 8.5 $ 4.9 Amounts billed to clients represent fees and reimbursable project-related expenses. Unbilled revenue represents fees, project-related expenses, materials, and subcontractor costs performed in advance of billings in accordance with contract terms. Unbilled revenue at December 31, 2016 and December 31, 2015 consists of amounts due from clients and is anticipated to be collected within normal terms. The Company maintains allowances for doubtful accounts for estimated losses resulting from the inability of its clients to make required payments and clients indicating their intention to dispute their obligation to pay for contractual services provided by us. If the financial condition of the Company’s clients were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required.

Current Prepaid Expenses

Current Prepaid Expenses	12 Months Ended
	Dec. 31, 2016
Prepaid Expenses Disclosure [Abstract]
Current Prepaid Expenses	Note Four — Current Prepaid Expenses Current prepaid expenses primarily consist of deferred costs and prepaid commissions related to Behavioral Analytics contracts. These costs are recognized over the subscription periods of the respective contracts, generally one to three years after the go-live date or, in cases where the Company contracts with a client for a short-term pilot of a Behavioral Analytics offering prior to committing to a longer subscription period, if any, the subscription or pilot periods generally range from three to twelve months after the go-live date. Costs included in current prepaid expenses will be recognized within the next twelve months. Current prepaid expenses consisted of the following: December 31, 2016 December 31, 2015 Deferred costs $ 1.7 $ 1.6 Prepaid commissions 1.2 1.4 Other 1.5 1.6 Total $ 4.4 $ 4.6

Equipment and Leasehold Improve

Equipment and Leasehold Improvements	12 Months Ended
	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Equipment and Leasehold Improvements	Note Five — Equipment and Leasehold Improvements Equipment and leasehold improvements consist of the following: December 31, 2016 December 31, 2015 Computers and software $ 24.3 $ 19.8 Furniture and equipment 0.7 0.3 Leasehold improvements 4.3 3.2 Equipment and leasehold improvements, gross 29.3 23.3 Accumulated depreciation and amortization (19.7 ) (14.8 ) Equipment and leasehold improvements, net $ 9.6 $ 8.5 Depreciation and amortization expense was $5.5 million, $4.4 million, and $3.0 million, for 2016, 2015, and 2014, respectively. Assets acquired under capital leases were $2.4 million, $2.7 million, and $1.7 million, in 2016, 2015, and 2014, respectively. Depreciation and amortization expense on capital lease assets was $2.0 million, $2.2 million, and $1.7 million, in 2016, 2015, and 2014, respectively. The carrying value of equipment and leasehold improvements is only reviewed if a triggering event occurs to assess recoverability based on future undiscounted cash flows. An impairment loss, if any, would be measured as the excess of the carrying value over the fair value. There was a triggering event as of December 31, 2016 and December 31, 2015; however no impairment was required to be recognized.

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible Assets	Note Six — Intangible Assets Intangible assets reflect costs related to patent and trademark applications, marketing managed services customer relationships and the purchase of certain intellectual property rights. The costs related to patent and trademark applications and the purchase of certain intellectual property are amortized over 120 months. The other intangible assets are fully amortized. Currently, amortization expense of intangible assets is expected to be $0.4 million annually. December 31, 2016 December 31, 2015 Patents and trademarks $ 3.7 $ 3.4 Intellectual property 3.3 3.3 Gross intangible assets 7.0 6.7 Accumulated amortization of intangible assets (3.8 ) (3.4 ) Total $ 3.2 $ 3.3

Other Long-Term Assets

Other Long-Term Assets	12 Months Ended
	Dec. 31, 2016
Investments All Other Investments [Abstract]
Other Long-Term Assets	Note Seven — Other Long-Term Assets Other long-term assets includes the long-term portion of deferred costs, prepaid commissions related to Behavioral Analytics, and restricted cash. R estricted cash represents cash used to collateralize certain letters of credit issued to support the company’s equipment leasing activities. December 31, 2016 December 31, 2015 Restricted cash $ 4.2 $ — Deferred costs 0.6 0.9 Other prepaid expenses 0.6 0.3 Prepaid commissions 0.5 1.2 Other 0.1 0.1 Total $ 6.0 $ 2.5

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2016
Postemployment Benefits [Abstract]
Employee Benefit Plans	Note Eight — Employee Benefit Plans The Company’s U.S. employees are eligible to participate in the Mattersight Corporation 401(k) Plan (the Plan) on the first day of the month coinciding with or following their date of hire. The Plan allows employees to contribute up to 30% of their eligible compensation and up to 100% of their bonus compensation, subject to IRS statutory limits. For 2016 and 2015, the employer match contribution was $0.5 million and $0.4 million, respectively. For 2014, Mattersight suspended the employer matching contributions for U.S. plans.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	Note Nine — Stock-Based Compensation The Company has two stock-based compensation plans: the Mattersight Corporation 1999 Stock Incentive Plan (the 1999 Plan) and the Mattersight Corporation Employee Stock Purchase Plan (the ESPP). Under the 1999 Plan, awards of restricted stock, salary replacement, commissions, stock options, and stock appreciation rights may be granted to directors, officers, employees, consultants, independent contractors, and agents of the Company and its subsidiaries. Awards granted under the 1999 Plan are made at the discretion of the Compensation Committee of the Company’s Board of Directors (the Compensation Committee). If shares or options awarded under the 1999 Plan are not issued due to cancellation of unvested or unexercised options or shares, then those shares or options again become available for issuance under the 1999 Plan. Under the 1999 Plan, on the first day of each year, the aggregate number of shares available for issuance under the 1999 Plan is automatically increased by an amount equal to 5% of the total number of shares of Common Stock that are outstanding. At the 2008 Annual Meeting of Stockholders, stockholders approved the amendment and restatement of the 1999 Plan to increase the number of shares available for issuance under the 1999 Plan by 1,500,000. Stock-based compensation expense was $5.3 million, $5.4 million, and $4.2 million, for 2016, 2015, and 2014, respectively. The Company recognizes stock compensation expense on a straight-line basis over the vesting period. The Company does not recognize the windfall tax benefit related to the excess tax deduction because the Company currently does not anticipate realizing the tax savings associated with this deduction. See Note Fifteen—Income Taxes. As of December 31, 2016, there were a total of 2,471,347 shares of Common Stock available for future grants under the 1999 Plan and from treasury stock. The Company’s Common Stock is traded on the NASDAQ Global Market under the symbol MATR. Restricted Stock Restricted stock awards are shares of Common Stock granted to an individual that do not immediately vest but rather vest over a period of time. During the vesting period, the holder of granted restricted stock receives all of the benefits of ownership (right to dividends, voting rights, etc.), other than the right to sell or otherwise transfer any interest in the stock. In addition to the Annual Grant (as defined under the section titled Stock Options below), each non-employee director receives 10,000 shares of restricted stock annually, the day after the Company’s annual stockholders’ meeting, which vest 25% at the end of the month in which awarded and the remaining balance vests over the following three quarters. Restricted stock award activity was as follows for 2014, 2015, and 2016: Shares Weighted Average Price Nonvested balance at December 31, 2013 450,223 $ 6.25 Granted 609,355 $ 5.70 Vested (458,888 ) $ 6.12 Forfeited (44,496 ) $ 6.13 Nonvested balance at December 31, 2014 556,194 $ 5.76 Granted 825,120 $ 6.78 Vested (493,270 ) $ 6.18 Forfeited (53,819 ) $ 6.15 Nonvested balance at December 31, 2015 834,225 $ 6.49 Granted 950,340 $ 3.89 Vested (380,218 ) $ 5.34 Forfeited (220,594 ) $ 5.98 Nonvested balance at December 31, 2016 1,183,753 $ 4.87 2016 2015 2014 Total fair value of restricted stock awards vested $ 1.6 $ 3.3 $ 2.6 Compensation expense related to restricted stock awards $ 4.0 $ 2.3 $ 1.7 As of December 31, 2016, there remains $2.9 million of unrecognized compensation expense related to restricted stock awards. These costs are expected to be recognized over a weighted average period of 1.6 years. The Company estimated the forfeiture rate at 3% for 2016, 2015, and 2014. Stock Options Stock option awards may be in the form of incentive or non-qualified options. Stock options are granted with an exercise price per share equal to the fair market value of a share of the common stock on the date of grant, and have a maximum term of 10 years. The stock option terms are set by the Compensation Committee and generally become exercisable over a period of four years. The vesting can begin in equal monthly or quarterly increments over the vesting period. Each non-employee director, upon commencing service, receives a non-qualified stock option to purchase 50,000 shares of Common Stock that vests ratably over a period of 48 months. Additionally, each non-employee director receives a non-qualified stock option to purchase 10,000 shares of Common Stock, granted annually the day after the Company’s annual stockholders’ meeting (the Annual Grant). Stock options granted to non-employee directors have an exercise price per share equal to the fair market value of a share of Common Stock on the grant date, and are exercisable for up to 10 years. Option activity was as follows for the years presented: Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) Weighted Average Fair Value of Option Grants Outstanding as of December 31, 2013 2,014,238 $ 7.98 7.0 Exercisable as of December 31, 2013 1,204,786 $ 9.66 5.8 Granted 654,000 $ 5.63 $ 3.33 Exercised (2,914 ) $ 5.15 Forfeited (28,728 ) $ 5.85 Outstanding as of December 31, 2014 2,636,596 $ 7.42 6.8 Exercisable as of December 31, 2014 1,582,165 $ 8.70 5.6 Outstanding intrinsic value at December 31, 2014 $ 2.1 Exercisable intrinsic value at December 31, 2014 $ 1.1 Granted 222,625 $ 6.57 $ 3.55 Exercised (59,638 ) $ 4.76 Forfeited (192,166 ) $ 7.47 Outstanding as of December 31, 2015 2,607,417 $ 7.41 6.0 Exercisable as of December 31, 2015 1,967,825 $ 7.97 5.2 Outstanding intrinsic value at December 31, 2015 $ 2.4 Exercisable intrinsic value at December 31, 2015 $ 1.8 Granted 115,000 $ 3.82 $ 1.85 Exercised (56,250 ) $ 4.20 Forfeited (74,026 ) $ 6.13 Outstanding as of December 31, 2016 2,592,141 $ 7.36 4.9 Exercisable as of December 31, 2016 2,282,476 $ 7.61 4.5 Outstanding intrinsic value at December 31, 2016 $ — Exercisable intrinsic value at December 31, 2016 $ — 2016 2015 2014 Compensation expense related to option awards $ 1.1 $ 1.7 $ 1.4 2016 2015 2014 Total fair value of stock options vested $ 1.1 $ 1.7 $ 1.3 Intrinsic value of stock options exercised — 0.1 — Proceeds received from option exercises 0.2 0.3 — As of December 31, 2016, there remained $0.9 million of unrecognized compensation expense related to stock options. These costs are expected to be recognized over a weighted average period of 1.4 years. The Company forfeiture rate was not applied as The following table summarizes the stock options granted during 2016, 2015, and 2014 by range of exercise price: 2016 2015 2014 Options granted 115,000 222,625 654,000 Range of exercise price $3.57 - $4.40 $6.13 - $6.90 $4.88 - $6.38 The vesting schedule for options granted is one of the following: (1) vesting 6.25% quarterly, with the balance vesting ratably over the following 15 quarters, (2) vesting 25% at the end of the month in which awarded and the remaining balance vesting over the following 12 quarters (3) vesting 25% at the end of the month in which awarded and the remaining balance vesting over the following 3 quarters. The fair value for options granted during 2016, 2015, and 2014 was estimated on the date of grant using a Black Scholes option-pricing model. The Company used the following weighted average assumptions: 2016 2015 2014 Risk-free interest rates 0.81 % 1.03 % 1.4 % Expected dividend yield — — — Expected volatility 54 % 58 % 65 % Expected lives 5.5 years 6.0 years 6.0 years Historical Company information is the primary basis for the selection of expected life, expected volatility, and expected dividend yield assumptions. The risk-free interest rate is selected based on the yields from U.S. Treasury Strips with a remaining term equal to the expected term of the options being valued. Employee Stock Purchase Plan The ESPP is intended to qualify as an employee stock purchase plan under section 423 of the Internal Revenue Code. We adopted the ESPP in 1999 and amended and restated the ESPP in May 2007 and February 2016. Under the ESPP, eligible employees are permitted to purchase shares of Common Stock at below-market prices. The purchase period opens on the first day and ends on the last business day of each calendar quarter. As of December 31, 2016, there remains 85,782 shares available for issuance under ESPP. The shares of Common Stock issued in respect of employee purchases under the ESPP during 2016, 2015, and 2014, were as follows: 2016 2015 2014 Shares of common stock issued 88,282 41,026 34,351 Expense related to ESPP (in thousands) $ 95 $ 61 $ 44 The fair value for ESPP purchases during 2016, 2015, and 2014, was estimated using a Black Scholes model. The Company used the following weighted average assumptions: 2016 2015 2014 Risk-free interest rates 0.25 % 0.01 % 0.04 % Expected dividend yield — — — Expected volatility 48 % 37 % 42 % Expected lives 0.25 years 0.25 years 0.25 years

Other Current Liabilities

Other Current Liabilities	12 Months Ended
	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Other Current Liabilities	Note Ten — Other Current Liabilities December 31, 2016 December 31, 2015 Accrued vendor payable $ 1.9 $ 0.7 Warrant liability 0.8 — Deferred rent liability 0.4 0.3 Other 0.3 0.8 Total $ 3.4 $ 1.8 On August 1, 2016, the company entered into a secured loan agreement with Hercules Capital, Inc., as agent and lender (Hercules). See Note Twelve – Debt. Concurrent with the loan agreement, the company issued a warrant to Hercules that gives Hercules the right to purchase shares of the company’s common stock at $3.50 per share. Initially, the warrant is exercisable for 357,142 shares of common stock. If the company borrows the entire third tranche of $5.0 million available under the loan agreement, the warrant will be exercisable for 428,570 shares of common stock. The warrant expires on August 1, 2023. The warrant is accounted for as a liability and carried at fair market value using the Black-Scholes model. Upon issuance, the Black-Scholes fair value was determined using a risk-free rate of 1.33%, expected volatility of 53% and an expected term of 7 years. The warrant liability is revalued on a quarterly basis. Changes in the warrant’s fair market value are recognized in non-operating income (expense) in the consolidated statements of operations.

Leases

Leases	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Leases	Note Eleven — Leases Capital Leases Assets under capital leases consist of computer hardware and related equipment. The gross amount of assets recorded under capital leases was $6.5 million and $6.0 million at December 31, 2016 and December 31, 2015, respectively. Depreciation expense related to assets under capital leases is included in depreciation and amortization expense on the consolidated statements of operations. The following is a schedule, by year, of future minimum lease payments under capital leases, together with the present value of the net minimum lease payments as of December 31, 2016: (In millions) Year Amount 2017 $ 2.0 2018 1.5 2019 0.4 2020 — Total minimum lease payments $ 3.9 Less: estimated executory costs — Net minimum lease payments $ 3.9 Less: amount representing interest (0.3 ) Present value of minimum lease payments $ 3.6 Capital leases included in equipment and leasehold improvements (see Note Five — December 31, 2016 December 31, 2015 Computers and software $ 6.5 $ 6.0 Accumulated depreciation and amortization (2.9 ) (2.6 ) Computers and software, net $ 3.6 $ 3.4 Operating Leases The Company leases various office facilities under leases expiring at various dates through August 31, 2023. Additionally, the Company leases various property and office equipment under operating leases, generally under three year terms, expiring at various dates. Certain lease agreements contain escalating rent clauses, which require higher rent payments in future years. The Company expenses rent on a straight-line basis over the term of the lease, including any rent-free periods. In addition, the Company received certain leasehold improvement incentives, and recorded these incentives as deferred rent, which is amortized as a reduction of rent expense over the life of the lease. Net deferred rent on the consolidated balance sheet as of December 31, 2016, 2015, and 2014 was $2.6 million, $2.0 million, and $0.1 million, respectively. Rental expense for all operating leases approximated $1.3 million, $1.7 million, and $2.0 million, for 2016, 2015, and 2014, respectively. In 2016, the Company entered into an operating lease to relocate its Austin facility. The initial lease term, which became effective on April 1, 2016, terminates on August 31, 2023. In 2015, the Company entered into an operating lease to relocate its corporate headquarters to Chicago, Illinois. The initial lease term, which became effective on July 1, 2015, terminates on July 31, 2022. The leases include one five-year renewal option. Future minimum rental commitments under non-cancelable operating leases with terms in excess of one year are as follows: (in millions) Year Amount 2017 $ 1.1 2018 0.7 2019 0.6 2020 0.5 2021 0.5 Thereafter 0.5 Total minimum payments required $ 3.9

Debt

Debt	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Debt	Note Twelve — Debt On August 1, 2016, the company entered into a secured loan agreement with Hercules. The agreement, which matures on February 1, 2020, allows the company to borrow up to $30.0 million in three tranches. On August 1, 2016, the company borrowed $22.5 million. The second tranche of up to $2.5 million will become available starting July 1, 2017 and continuing until September 15, 2017, contingent on the company meeting certain financial milestones. The third tranche of up to $5.0 million will become available starting September 15, 2017 and continuing until September 15, 2018, contingent on meeting certain financial milestones, a portion of which will be mutually determined by the company and Hercules and will be subject to approval by Hercules. The annual interest rate is equal to the greater of (i) 9.75% plus the prime rate minus 3.50% or (ii) 9.75%. Additionally, the principal balance will bear compounding payment-in-kind interest at an annual rate of 2.15%. Monthly payments are interest only until December 1, 2017, subject to extension until March 1, 2018 or June 1, 2018 depending on whether certain financial milestones are met. After the interest-only period, principal and interest will be due in equal monthly payments. The company may prepay all, but not a portion, of the loan. A prepayment charge of 3.0%, 2.0% or 1.0% of the outstanding balance would be due in year one, in year two, or after year two, respectively. Initially, the agreement’s covenants require the company (i) to achieve at least 80% of its trailing 6 month projected subscription revenues and (ii) to maintain at least $7.5 million in unrestricted cash. After the company achieves two consecutive quarters of earnings before interest, taxes, and depreciation and amortization of at least $1.0 million, the minimum requirement for unrestricted cash will decrease to $6.0 million. The agreement is secured by substantially all of the company’s assets, including its intellectual property. Prior to entering into the secured loan agreement with Hercules Capital, Inc., the company was party to a credit facility and term loan with Silicon Valley Bank. The credit facility and term loan were terminated on August 1, 2016. The company used a portion of the proceeds from the Hercules Capital, Inc. secured loan agreement to repay its $6.0 million term loan with Silicon Valley Bank and to pay borrowing-related fees and expenses. The company expects to use the remaining proceeds and any future borrowings under the Hercules secured loan agreement for general corporate purposes. In the third quarter of 2016, the company also entered into financing agreements to furnish its new facility in Austin, Texas. Debt consisted of the following at December 31, 2016: (In millions) Amount Hercules Capital, Inc. loan due February 1, 2020, effective rate of 14.50% $ 22.5 Furniture loan due May 2021, effective rate of 9.10% 0.1 Furniture loan due May 2021, effective rate of 9.55% 0.1 Furniture loan due July 2019, effective rate of 13.98% 0.1 Total debt (1) $ 22.8 (1) The current portion of the principal due was $0.7 million at December 31, 2016. The balance of long-term debt in the consolidated balance sheet includes $0.6 million of unamortized debt costs and $0.7 million of unaccreted debt discount. Debt maturities were as follows as of December 31, 2016: (In millions) Year Amount 2017 $ 0.7 2018 8.3 2019 9.2 2020 4.5 2021 0.1 Letters of Credit Restricted cash represents cash used to collateralize certain letters of credit issued to support the company’s equipment leasing activities and building lease spaces. The letters of credit in the amount of $4.2 million are expected to expire 2017—2023. The restrictions on cash are recognized over the terms of the respective contracts, generally one to three years for equipment leases and seven years for building leases.

Other Long-Term Liabilities

Other Long-Term Liabilities	12 Months Ended
	Dec. 31, 2016
Payables And Accruals [Abstract]
Other Long-Term Liabilities	Note Thirteen — Other Long-Term Liabilities December 31, 2016 December 31, 2015 7% Series B convertible preferred stock dividend payable $ 2.6 $ 2.1 Deferred rent liability 2.2 1.7 Intellectual property purchase liability 0.8 1.6 Deferred tax liability 0.3 0.3 Total $ 5.9 $ 5.7

Capital Stock and Series B Stoc

Capital Stock and Series B Stock	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Capital Stock and Series B Stock	Note Fourteen — Capital Stock and Series B Stock Under the terms of its Certificate of Incorporation, as amended, the Company’s authorized capital stock consists of (i) 50,000,000 shares of Common Stock, and (ii) 40,000,000 shares of preferred stock (Preferred Stock). Under the terms of the Certificate of Designations of 7% Series B Convertible Preferred Stock, the Company designated 5,000,000 shares of the 40,000,000 shares of Preferred Stock as its Series B Stock. 1,637,948 and 1,644,768 shares of Series B Stock were issued and outstanding as of December 31, 2016 and December 31, 2015, respectively. On July 22, 2015, the Company signed a definitive Common Stock Purchase Agreement (the 2015 Purchase Agreement) to raise approximately $16.2 million in gross proceeds in a registered direct offering. Under the terms of the 2015 Purchase Agreement, the Company sold 2,728,712 shares of Common Stock (the Shares). Of the aggregate 2,728,712 Shares, 2,563,238 were sold to certain investors at a price of $5.93 per share and 165,474 were sold to certain officers and directors (including certain of their affiliates) at a price of $6.11 per share. The Shares represented approximately 12% of the issued and outstanding shares of Common Stock immediately prior to the execution of the 2015 Purchase Agreement. The offering closed on July 23, 2015. The aggregate proceeds that the Company received from the offering, net of fees, were approximately $15.9 million. Proceeds from the offering are being used for general corporate and working capital purposes. Craig-Hallum Capital Group LLC, which acted as the Company’s financial advisor for the offering, received a fee of $0.2 million. The Shares were sold pursuant to a prospectus supplement dated as of July 22, 2015, in connection with a takedown from the Company’s effective shelf registration statement on Form S-3 (File No. 333-202744), which was filed with the SEC on March 13, 2015 and declared effective by the SEC on April 8, 2015. On July 23, 2014, the Company entered into a Common Stock Purchase Agreement (the 2014 Purchase Agreement) with certain accredited investors party thereto (the 2014 Purchasers). Under the terms of the 2014 Purchase Agreement, the Company sold, and the 2014 Purchasers purchased from the Company, 2,891,566 shares of Common Stock (the 2014 Shares), at a price of $4.15 per share, to certain institutional investors. The 2014 Shares represented 15% of the issued and outstanding shares of Common Stock immediately prior to the execution of the 2014 Purchase Agreement. The offering closed on July 29, 2014. The aggregate gross proceeds, net of fees, that the Company received from the offering were approximately $11.1 million. Craig-Hallum Capital Group LLC, which acted as the sole placement agent for the offering, received a commission equal to 7% of the aggregate purchase price (excluding certain accounts), for an aggregate commission of $0.8 million, and was reimbursed for its out-of-pocket expenses. The Series B Stock accrues dividends at a rate of 7% per annum, is entitled to a preference upon liquidation, and is convertible on a one-for-one basis into shares of Common Stock, subject to adjustment for stock splits, stock dividends, and similar actions. The Series B Stock generally votes on a one-for-one basis with the Common Stock, subject to adjustment for certain actions and specified matters as to which the Series B Stock is entitled to a separate class vote.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Note Fifteen — Income Taxes Loss before income taxes consisted of the following: 2016 2015 2014 United States $ (20.9 ) $ (15.5 ) $ (14.2 ) Foreign — (0.1 ) — Total $ (20.9 ) $ (15.6 ) $ (14.2 ) The income tax (provision) benefit consists of the following: 2016 2015 2014 Current: Federal $ (0.1 ) $ — $ — State — — — Foreign — — — Total current (0.1 ) — — Deferred: Federal — — — State — — — Foreign — — — Total deferred — — — Income tax (provision) benefit $ (0.1 ) $ — $ — Total income tax benefit differed from the amount computed by applying the federal statutory income tax rate due to the following: 2016 2015 2014 Federal tax benefit, at statutory rate $ 7.2 $ 5.5 $ 5.0 State tax benefit, net of federal benefit 0.6 0.4 0.4 Nondeductible expenses (0.3 ) 0.1 (0.2 ) Other 0.1 (1.1 ) (0.3 ) Valuation allowance (7.7 ) (4.9 ) (4.9 ) Income tax (provision) benefit $ (0.1 ) $ — $ — The Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position should be measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Significant judgment is used to determine the likelihood of the benefit. A reconciliation of the gross amounts of unrecognized tax benefits at the beginning and end of the year are as follows: 2016 2015 2014 Balance at beginning of year $ 12.7 $ 12.7 $ 12.6 Additions based on tax positions related to the current year — — — Additions for tax positions of prior years — — 0.1 Reductions for tax positions of prior years — — — Reductions for tax positions as a result of lapse of statute — — — Settlements — — — Balance at end of year $ 12.7 $ 12.7 $ 12.7 Due to the Company’s net operating loss carryforward position, these unrecognized tax benefits will not impact the Company’s effective tax rate, if recognized. Any change in the amount of unrecognized tax benefits within the next twelve months is not expected to result in a significant impact on the results of operations or the financial position of the Company. Due to the Company’s net operating loss carryforward position, accrued interest and penalties associated with uncertain tax positions as of December 31, 2016 are not material. Interest and penalties associated with uncertain tax positions are recorded as part of income tax expense. The statutes of limitation for the Company’s income tax returns after 2001 effectively remain open for examination by the IRS because the net operating loss carryforward from those years can be examined by the IRS for a period of three years after filing the tax return for the year the loss is used. Foreign and U.S. state jurisdictions have statutes of limitations generally ranging from three to five years. The state impact of any federal changes remains subject to examination by various states for a period of up to one year after formal notification to the states. The Company and its subsidiaries may have various state and foreign income tax returns for immaterial jurisdictions in the process of examination throughout the reporting period. Deferred tax assets and liabilities comprised the following: December 31, 2016 December 31, 2015 Deferred tax assets: Net operating loss carryforwards $ 75.2 $ 70.8 Other accruals 8.8 5.6 Depreciation and amortization, including goodwill 0.8 0.4 Tax credit carryforward 0.5 0.5 Valuation allowance (83.8 ) (75.8 ) Total deferred tax assets 1.5 1.5 Deferred tax liabilities: Prepaid expenses (1.7 ) (1.7 ) Total deferred tax liabilities (1.7 ) (1.7 ) Net deferred tax liability $ (0.2 ) $ (0.2 ) Deferred income taxes are not provided on certain undistributed earnings of foreign subsidiaries that are expected to be permanently reinvested in those companies. These earnings aggregated to an immaterial amount at each of December 31, 2016 and December 31, 2015. During 2002, the Company established a valuation allowance related to deferred tax assets for the U.S. This was in addition to the valuation allowance established in 2001 for non-U.S. deferred tax assets. The Company continues to provide a valuation allowance on significantly all domestic and foreign deferred tax assets as the Company has determined that it is more likely than not that the deferred tax assets in these jurisdictions will not be realized. As of December 31, 2016, net deferred tax assets of $83.8 million were fully offset by a valuation allowance. The Company’s U.S. federal net operating losses (NOLs) of $240.8 million and U.S. State NOLs of $127.7 million will expire beginning in 2022 and 2017, respectively. The Company’s non-U.S. NOLs of $0.6 million are subject to various expiration dates beginning in 2029. The Company also carries $0.5 million in Research and Development credit carryforwards that will expire beginning in 2020. The Company’s ability to utilize its NOLs could become subject to significant limitations under Section 382 of the Internal Revenue Code if the Company were to undergo an ownership change. An ownership change would occur if the stockholders who own or have owned, directly or indirectly, 5% or more of the Company’s Common Stock or are otherwise treated as 5% stockholders under Section 382 and the regulations promulgated thereunder, increase their aggregate percentage ownership of the Company’s stock by more than 50 percentage points over the lowest percentage of the stock owned by these stockholders at any time during the testing period, which is generally the three-year period preceding the potential ownership change. In the event of an ownership change, Section 382 imposes an annual limitation on the amount of taxable income a corporation may offset with NOL carryforwards. Any unused annual limitation may be carried over to later years until the applicable expiration date for the respective NOL carryforwards. The Company has undergone a Section 382 analysis and does not believe there is currently a limitation on the use of NOLs under Section 382; however, due to ongoing ownership changes (See Note Twenty—Subsequent Event), the Company may be subject to significant limitations in the future. If a change in ownership is deemed to have occurred during the past three years, then it may be possible that the Company’s NOL carryforward could be subject to limitation under Section 382 for tax return purposes. However, since its NOL carryforward is fully reserved with a valuation allowance, there would be no impact for financial statement purposes from a Section 382 limitation.

Loss Per Share

Loss Per Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Loss Per Share	Note Sixteen — Loss Per Share The following table sets forth the loss per share calculation for the periods presented: 2016 2015 2014 Net loss $ (21.0 ) $ (15.7 ) $ (14.2 ) Dividends related to Series B convertible preferred stock (1) (0.6 ) (0.6 ) (0.6 ) Net loss available to common stockholders $ (21.6 ) $ (16.3 ) $ (14.8 ) Per share of Common Stock Basic/diluted net loss available to common stockholders $ (0.86 ) $ (0.70 ) $ (0.74 ) Weighted average shares outstanding (basic and diluted) (in millions) 25.21 23.26 19.92 Currently anti-dilutive common stock equivalents (2) (in millions) 1.73 2.21 2.02 (1) Dividends on 7% Series B convertible preferred stock (Series B stock) are cumulative and have been accrued from July 1, 2012 to December 31, 2016. The total accrued dividends are $2.6 million as of December 31, 2016, which will continue to be accrued until they are declared by the board of directors. Dividends related to Series B convertible preferred stock were accrued but not paid during 2016, 2015 and 2014 . (2) In periods in which there was a loss, the effect of Common Stock equivalents, which is primarily related to the Series B Stock, was not included in the diluted loss per share calculation as it was antidilutive.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note Seventeen — Fair Value Measurements The Company reports certain assets and liabilities at fair value. Fair value is an exit price and establishes a three-tier valuation hierarchy for ranking the quality and reliability of the information used to determine fair values. The first tier, Level 1, uses quoted market prices in active markets for identical assets or liabilities. Level 2 uses inputs, other than quoted market prices for identical assets or liabilities in active markets, which are observable either directly or indirectly. Level 3 uses unobservable inputs in which there are little or no market data, and requires the entity to develop its own assumptions. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The following table presents financial instruments measured at fair value measured on a recurring basis: December 31, 2016 Carrying value Level 1 Level 2 Level 3 Cash and cash equivalents - money market fund $ 12.1 $ 12.1 $ — $ — Warrant liability 0.8 — — 0.8 December 31, 2015 Carrying value Level 1 Level 2 Level 3 Cash and cash equivalents - money market fund $ 13.7 $ 13.7 $ — $ — Warrant liability — — — — The following table represents the activity in the Company’s Level 3 warrants during the years ended: (In millions) Amount Level 3 warrants, ending balance at December 31, 2013 $ 0.8 Change in fair value of warrant liability 0.1 Warrant exercise (0.5 ) Level 3 warrants, ending balance at December 31, 2014 0.4 Change in fair value of warrant liability — Warrant exercise (0.4 ) Level 3 warrants, ending balance at December 31, 2015 — Addition - Hercules warrants, initial fair value 0.9 Change in fair value of warrant liability (0.1 ) Level 3 warrants, ending balance at December 31, 2016 $ 0.8 The carrying values of other cash and cash equivalents, accounts receivable, accounts payable, and short-term debt approximated their fair values as of December 31, 2016 and December 31, 2015 due to the short-term nature of these instruments. The company determined the fair value of the warrant liability, considered a Level 3 liability, using the Black-Scholes model. At December 31, 2016, management used a risk free rate of 2.18%, expected volatility of 53%, and an expected term of 6.59 years. Initially, the warrant is exercisable for 357,142 shares of common stock. If the company borrows the entire third tranche of $5.0 million available under the Hercules secured loan agreement, the warrant will be exercisable for 428,570 shares of common stock. (See Note Ten – Other Current Liabilities). As of December 31, 2016, a probability of 0% was assigned to a draw of the third tranche Significant increases or decreases in any of these inputs in isolation would result in a significantly different fair value. Fair values for assets and liabilities that are only disclosed and not recorded consist of long-term debt. The fair value of long-term debt was estimated to be $22.8 million at December 31, 2016. There were no transfers of assets or liabilities between Level 1, Level 2, and Level 3 during 2016. There were no assets or liabilities valued at fair value on a nonrecurring basis during 2016.

Litigation and Other Contingenc

Litigation and Other Contingencies	12 Months Ended
	Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Litigation and Other Contingencies	Note Eighteen — Litigation and Other Contingencies The Company is a party to various agreements, including all client contracts, under which it may be obligated to indemnify the other party with respect to certain matters, including, but not limited to, indemnification against third-party claims of infringement of intellectual property rights with respect to services, software, and other deliverables provided by the Company. These obligations may be subject to various limitations on the remedies available to the other party, including, without limitation, limits on the amounts recoverable and the time during which claims may be made, and may be supported by indemnities given to the Company by applicable third parties. Payment by the Company under these indemnification clauses is generally subject to the other party making a claim that is subject to challenge by the Company. Historically, the Company has not been obligated to pay any claim for indemnification under its agreements, and management is not aware of future indemnification payments that it would be obligated to make. Under its By-Laws, subject to certain exceptions, the Company has agreed to indemnify its corporate officers and directors for certain events or occurrences while the corporate officer or director is, or was, serving at its request in such capacity or in certain related capacities. The Company has separate indemnification agreements with each of its directors and corporate officers that requires it, subject to certain exceptions, to indemnify them to the fullest extent authorized or permitted by its By-Laws and the Delaware General Corporation Law. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has a director and officer liability insurance policy that limits its exposure and enables it to recover a portion of any amounts paid under these indemnification agreements. As a result of its insurance policy coverage, the Company believes the estimated fair value of these indemnification agreements is minimal. The Company had no liabilities recorded for these agreements as of December 31, 2016. The Company’s products may be subject to sales tax in certain jurisdictions. If a taxing authority were to successfully assert that we have not properly collected sales or other transaction taxes, or if sales or other transaction tax laws or the interpretation thereof were to change, and we were unable to enforce the terms of our contracts with customers that give us the right to reimbursement for assessed sales taxes, we could incur tax liabilities in amounts that could be material. The Company has considered the changing nature of tax laws, the terms of its customer contracts and its recent audit experience in assessing its exposure to possible and probable sales tax liabilities. Based on its assessment, the company has recorded a sales tax liability of less than $0.1 million at December 31, 2016.

Quarterly Data (Unaudited)

Quarterly Data (Unaudited)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Quarterly Data (Unaudited)	Note Nineteen — Quarterly Data (Unaudited) 2016 1st 2nd 3rd 4th Year Total revenue $ 10.0 $ 9.1 $ 10.4 $ 12.6 $ 42.1 Gross margin $ 6.8 $ 5.9 $ 7.0 $ 8.6 $ 28.3 Operating loss $ (5.6 ) $ (6.0 ) $ (5.0 ) $ (2.2 ) $ (18.8 ) Loss before income taxes $ (5.8 ) $ (6.2 ) $ (5.8 ) $ (3.1 ) $ (20.9 ) Net loss available to common stockholders $ (6.0 ) $ (6.3 ) $ (6.0 ) $ (3.3 ) $ (21.6 ) Per share of common stock: Basic net loss available to common stockholders $ (0.24 ) $ (0.25 ) $ (0.24 ) $ (0.13 ) $ (0.86 ) Diluted net loss available to common stockholders $ (0.24 ) $ (0.25 ) $ (0.24 ) $ (0.13 ) $ (0.86 ) 2015 1st 2nd 3rd 4th Year Total revenue $ 9.3 $ 9.7 $ 10.5 $ 10.4 $ 39.9 Gross margin $ 6.7 $ 7.0 $ 8.0 $ 7.5 $ 29.2 Operating loss $ (3.7 ) $ (3.4 ) $ (3.8 ) $ (4.2 ) $ (15.1 ) Loss before income taxes $ (3.8 ) $ (3.6 ) $ (3.9 ) $ (4.3 ) $ (15.6 ) Net loss available to common stockholders $ (4.0 ) $ (3.7 ) $ (4.1 ) $ (4.5 ) $ (16.3 ) Per share of common stock: Basic net loss available to common stockholders $ (0.18 ) $ (0.17 ) $ (0.17 ) $ (0.18 ) $ (0.70 ) Diluted net loss available to common stockholders $ (0.18 ) $ (0.17 ) $ (0.17 ) $ (0.18 ) $ (0.70 )

Subsequent Event

Subsequent Event	12 Months Ended
	Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Event	Note Twenty — Subsequent Event On February 23, 2017, the Company, entered into a purchase agreement for the sale of 5,328,187 shares of its common stock to certain investors and certain officers and directors in a private placement. Under the terms of the agreement, the Company raised approximately $16.0 million in gross proceeds by selling 5,228,187 shares to certain investors at a price of $3.00 per share and by selling 100,000 shares to certain officers and directors (including certain of their affiliates) at a price of $3.45 per share. The Shares represented 20% of the issued and outstanding shares of common stock immediately prior to the issuance. On March 1, 2017, the Company received aggregate gross proceeds, net of fees, of $14.9 million. Proceeds are being used for general corporate and working capital purposes. Craig-Hallum Capital Group LLC, which acted as the sole placement agent for the offering, . The Company has agreed to register the shares and will be assessed penalties if it is unable to do so.

Valuation and Qualifying Accoun

Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2016
Valuation And Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts	MATTERSIGHT CORPORATION SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS (In millions) Description of Allowance and Reserves Balance at Beginning of Period Additions Charged to Costs and Expenses Additions Charged to Other Accounts Deductions Balance at End of Period Valuation allowance for doubtful accounts: December 31, 2016 $ — 0.3 — — $ 0.3 December 31, 2015 $ — — — — $ — December 31, 2014 $ — — — — $ — Valuation allowance for deferred tax assets: December 31, 2016 $ 75.8 8.0 — — $ 83.8 December 31, 2015 $ 71.0 4.8 — — $ 75.8 December 31, 2014 $ 67.6 3.4 — — $ 71.0 .

Summary of Significant Accoun31

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Consolidation	Consolidation The consolidated financial statements include the accounts of Mattersight and all of its subsidiaries. All significant intercompany transactions have been eliminated.
Use of Estimates	Use of Estimates The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America (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 financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those amounts.
Basis of Presentation	Basis of Presentation On January 1, 2016, the company adopted Accounting Standards Update (ASU) 2015-03, Interest — Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. ASU 2015-03 simplifies the presentation of debt issuance costs by conforming the presentation of those costs to that of debt discounts and premiums. The standard requires that unamortized debt issuance costs related to a recognized debt liability be presented on the balance sheet as a direct deduction from the carrying amount of the debt liability. Long-term debt is shown net of unamortized debt issuance costs in the company’s consolidated balance sheets. In August 2014, the Financial Accounting Standards Board (FASB) issued ASU No. 2014-15: Presentation of Financial Statements - Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern. The standard provides guidance on determining when and how to disclose going concern uncertainties in the financial statements. Management will be required to perform interim and annual assessments of the Company’s ability to continue as a going concern within one year of the date financial statements are issued. ASU 2014-15 is effective for annual and interim periods ending after December 15, 2016, with early adoption permitted. The Company adopted this standard during 2016 with no significant impact on the Company financial statement disclosure. See Note Twenty—Subsequent Event.
Revenue Recognition	Revenue Recognition Subscription Revenue Subscription revenue consists of revenue derived from Mattersight’s Behavioral Analytics service offerings, including predictive behavioral routing, performance management, quality assurance, predictive analytics, and marketing managed services revenue derived from the performance of services on a continual basis. Subscription revenue is based on a number of factors, such as the number of users to whom the Company provides one or more of its Behavioral Analytics offerings, the type and number of Behavioral Analytics offerings deployed to the client, and in some cases, the number of hours of calls analyzed during the relevant month of the subscription period. Subscription periods generally range from one to three years after the go-live date or, in cases where the Company contracts with a client for a short-term pilot of a Behavioral Analytics offering prior to committing to a longer subscription period, if any, the subscription or pilot periods generally range from three to twelve months after the go-live date. This revenue is recognized over the applicable subscription period, as the service is performed for the client. Other Revenue Other revenue consists of deployment revenue, professional services revenue, and reimbursed expenses revenue. Deployment revenue consists of planning, deployment, and training fees derived from Behavioral Analytics contracts. These fees, which are considered to be installation fees related to Behavioral Analytics subscription contracts, are deferred until the installation is complete and are then recognized over the applicable subscription or pilot period. Installation costs incurred are deferred up to an amount not to exceed the amount of deferred installation revenue and additional amounts that are recoverable based on the contractual arrangement. These costs are included in prepaid expenses and other long-term assets. Such costs are amortized over the subscription period. Costs in excess of the foregoing revenue amount are expensed in the period incurred. Professional services revenue primarily consists of fees charged to the Company’s clients to provide post-deployment follow-on consulting services, which include custom data analysis, the implementation of enhancements, and training, as well as fees generated from the Company’s operational consulting services. Professional services are performed for the Company’s clients on a fixed-fee or time-and-materials basis. Revenue is recognized as the services are performed, with performance generally assessed on the ratio of actual hours incurred to-date compared with the total estimated hours over the entire term of the contract. Reimbursed expenses revenue includes billable costs related to travel and other out-of-pocket expenses incurred while performing services for the Company’s clients. An equivalent amount of reimbursable expenses is included in total cost of other revenue.
Total Cost of Revenue, Exclusive of Depreciation and Amortization	Total Cost of Revenue, Exclusive of Depreciation and Amortization Total cost of revenue primarily consists of labor costs, including salaries, fringe benefits, and incentive compensation, royalties, and other client-related third-party outside services. Total cost of revenue excludes depreciation and amortization. If the Company’s estimates indicate that a contract loss will occur, then a loss provision is recorded in the period in which the loss first becomes probable and can be reasonably estimated.
Research and Development	Research and Development Research and development expenses consist primarily of salaries, incentive compensation, commissions, and employee benefits for product development personnel. The personnel costs included in this item are net of any labor costs directly related to the generation of revenue, which are represented in total cost of revenue.
Sales and Marketing	Sales and Marketing Sales and marketing expenses consist primarily of salaries, incentive compensation, commissions, and employee benefits for business development, account management, and marketing.
General And Administrative	General and Administrative General and administrative expenses consist primarily of salaries, incentive compensation, and employee benefits for administrative personnel, as well as facilities costs, a provision for uncollectible amounts, and costs for the Company’s corporate technology infrastructure and applications.
Loss Per Common Share	Loss Per Common Share The per common share basic net loss available to holders of the Company’s Common Stock, par value $0.01 per share (Common Stock), has been computed by dividing the net loss available to holders of Common Stock for each period presented by the weighted average shares outstanding. The per common share diluted loss available to holders of Common Stock has been computed by dividing the net loss available to holders of Common Stock by the weighted average shares outstanding plus the dilutive effect of Common Stock equivalents, which is primarily related to our 7% Series B Convertible Preferred Stock (Series B Stock), using the treasury stock method. In periods in which there was a loss, the dilutive effect of Common Stock equivalents is not included in the diluted loss per share calculation as it was antidilutive.
Fair Value Measurements	Fair Value Measurements Fair value is an exit price and establishes a three-tier valuation hierarchy for ranking the quality and reliability of the information used to determine fair values. The first tier, Level 1, uses quoted market prices in active markets for identical assets or liabilities. Level 2 uses inputs, other than quoted market prices for identical assets or liabilities in active markets, which are observable either directly or indirectly. Level 3 uses unobservable inputs in which there are little or no market data, and requires the entity to develop its own assumptions. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers all highly liquid investments readily convertible into known amounts of cash (with original purchased maturities of three months or less) to be cash equivalents.
Concentration of Credit Risk	Concentration of Credit Risk Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash and cash equivalents, which includes foreign bank accounts, and receivables. Cash and cash equivalents consist of money market funds and deposits with high credit quality financial institutions. At times, such deposits may be in excess of the Federal Deposit Insurance Corporation insurance limit. Accounts in the United States are insured by the Federal Deposit Insurance Corporation up to $250,000. At December 31, 2016, the Company had non-interest-bearing cash and interest-bearing money market balances in excess of federally insured limits by $11.8 million. The Company’s receivables are derived from billings to clients located primarily in the United States and are denominated in U.S. dollars. For 2016, there were three clients that accounted for 10% or more of total revenue: United HealthCare Services, Inc.; CVS Caremark Corporation, and Progressive Casualty Insurance Company; which accounted for 33%, 15%, and 11% of total revenue, respectively. For 2015, there were three clients that accounted for 10% or more of total revenue: United HealthCare Services, Inc.; Progressive Casualty Insurance Company; and CVS Caremark Corporation, which accounted for 31%, 15%, and 13% of total revenue, respectively. For 2014, there were three clients that accounted for 10% or more of total revenue: United HealthCare Services, Inc.; Progressive Casualty Insurance Company; and Health Care Service Corporation; which accounted for 25%, 20%, and 11% of total revenue, respectively. As of December 31, 2016, two clients, United HealthCare Services, Inc. and CVS Caremark Corporation, accounted for 41% and 27% of total gross accounts receivable, respectively. As of December 31, 2015, two clients, United HealthCare Services, Inc. and CVS Pharmacy, Inc. accounted for 46% and 19% of total gross accounts receivable, respectively.
Equipment and Leasehold Improvements	Equipment and Leasehold Improvements Computers, software, furniture, and equipment are carried at cost and depreciated on a straight-line basis over their estimated useful lives. Leasehold improvements are amortized over the lesser of the useful life or the lease term. The useful life for computers and software is between one and three years. For enterprise software applications where a longer useful life is deemed appropriate, five years is used. For furniture and equipment, a useful life of five years is used. Maintenance and repair costs are expensed as incurred. The cost and related accumulated depreciation of assets sold or disposed of are eliminated from the respective accounts and the resulting gain or loss is included in the statements of operations. The carrying value of equipment and leasehold improvements is only reviewed if a triggering event occurs to assess recoverability based on future undiscounted cash flows. An impairment loss, if any, would be measured as the excess of the carrying value over the fair value. The Company accounts for software developed for internal use in accordance with the guidance provided under ASC Topic 350, Intangibles – Goodwill and Other , The Company leases certain equipment using both capital leases and operating leases. Assets leased under capital leases are recorded at the lesser of the amount financed and present value of future lease payments and depreciated on a straight line basis. All capital leases are for terms of twenty-four, thirty, or thirty-six months.
Goodwill	Goodwill Goodwill is tested annually for impairment or more frequently if an event or circumstance indicates that an impairment loss may have been incurred. In performing our annual impairment test, we first perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value, including goodwill. If it is concluded that this is the case, we perform a detailed quantitative assessment using a two-step test approach. In the first step, the fair value of the reporting unit is compared with its carrying value. If the fair value exceeds the carrying value, then goodwill is not impaired and no further testing is performed. The second step is performed if the carrying value exceeds the fair value. The implied fair value of the reporting unit’s goodwill must be determined and compared with the carrying value of the goodwill. If the carrying value of a reporting unit’s goodwill exceeds its implied fair value, then an impairment loss equal to the difference will be recorded. The Company currently operates in a single business segment or reporting unit. In 2016, after completing our annual qualitative review, we concluded that it was not more likely than not that the carrying value of our reporting unit exceeded its fair value. Accordingly, we concluded that further quantitative analysis and testing was not required, and no goodwill impairment charge was required.
Intangible Assets	Intangible Assets Intangible assets subject to amortization are assessed for impairment at least annually or when indicated by a change in economic or operational circumstances. The impairment assessment of these assets requires management to first compare the book value of the amortizing asset to undiscounted cash flows only if there are indicators of a change in circumstances. If the book value exceeds the undiscounted cash flows, management is then required to estimate the fair value of the assets and record an impairment loss for the excess of the carrying value over the fair value and annually challenge the useful lives.
Income Taxes	Income Taxes The Company uses an asset and liability approach for financial accounting and reporting of income taxes. Deferred income taxes are provided when tax laws and financial accounting standards differ with respect to the amount of income for the year, the basis of assets and liabilities and for tax loss carryforwards. The Company has recorded income tax valuation allowances on its net deferred tax assets to account for the unpredictability surrounding the timing of realization of its U.S. and non-U.S. net deferred tax assets due to continuing operating losses. The valuation allowances may be reversed at a point in time when management determines realization of these tax assets has become more likely than not, based on a return to or achieving predictable levels of profitability. The Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position should be measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Significant judgment is used to determine the likelihood of the benefit.
Unearned Revenue	Unearned Revenue Unearned revenue consists of billings or payments received in advance of revenue recognition for Behavioral Analytics contracts. Unearned revenue is recognized as revenue when the applicable recognition criteria are met.
Stockholders' Equity	Stockholders’ Equity Stockholders’ equity includes Common Stock issued, additional paid-in capital, accumulated deficit, treasury stock, and accumulated other comprehensive loss. The 1.6 million shares of Series B Stock outstanding as of December 31, 2016 and 2015 are not classified as permanent equity or a liability in the accompanying balance sheets. These shares of Series B Stock are conditionally redeemable and do not meet the definition of a mandatorily redeemable financial instrument. The holders of Series B Stock have the ability to initiate a redemption upon the occurrence of certain events that are considered outside the Company’s control.
Foreign Currency Translation	Foreign Currency Translation The functional currencies for the Company’s foreign subsidiaries are their local currencies. All assets and liabilities of foreign subsidiaries are translated to U.S. dollars at end of period exchange rates. The resulting translation adjustments are recorded as a component of stockholders’ equity and comprehensive loss. Income and expense items are translated at average exchange rates prevailing during the period.
Stock-Based Compensation	Stock-Based Compensation Stock-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense over the vesting period. Determining fair value of stock-based awards at the grant date requires certain assumptions. The Company uses historical information as the primary basis for the selection of expected life, expected volatility, expected dividend yield assumptions, and anticipated forfeiture rates. The risk-free interest rate is selected based on the yields from U.S. Treasury Strips with a remaining term equal to the expected term of the options being valued.
Stock Warrants	Stock Warrants In accordance with ASC 480-10, Distinguishing Liabilities from Equity
Segments	Segments The Company operates in a single business segment, focused primarily on Behavioral Analytics.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2017-04, Intangibles—Goodwill and Other, simplifying the test for goodwill impairment. This ASU simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value. This ASU is effective for reporting periods beginning after December 15, 2019 and interim periods within those annual periods. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows: Restricted Cash, to clarify how restricted cash should be presented in the cash flow statement. This update is effective for reporting periods beginning after December 15, 2017 and interim periods within those annual periods. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes: Intra-Entity Transfers of Assets Other Than Inventory, which requires an entity to recognize the income tax consequences of intra-entity transfers, other than inventory, when the transfer occurs. Under current guidance in U.S. GAAP, in the case of depreciable or amortizable assets, the income tax consequences are deferred at the time of the intra-entity transfer and recognized as the assets are depreciated or amortized. This ASU is effective for reporting periods beginning after December 15, 2017 and interim periods within those annual periods, In August 2016, the FASB issued ASU No 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments, which applies to all entities that are required to present a statement of cash flows under Topic 230. ASU 2016-15 addresses the presentation and classification of cash flows related to (i) debt prepayment or debt extinguishment costs, (ii) settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing, (iii) contingent consideration payments made after a business combination, (iv) proceeds from the settlement of insurance claims, (v) proceeds from the settlement of corporate-owned life insurance policies (including bank-owned life insurance policies), (vi) distributions received from equity method investees, (vii) beneficial interests in securitization transactions, and (viii) separately identifiable cash flows and application of the predominance principle. The company is currently evaluating the impact of this update on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments. This update broadens the information that an entity must consider in developing its expected credit loss estimate for assets measured either collectively or individually. The update is effective for annual periods beginning after December 15, 2019. The company is currently evaluating the impact of this update on its consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting (Topic 718). This update is intended to simplify the accounting for share-based payment transactions, including the income tax impacts, classification of awards as either equity or liabilities, and presentation on the statement of cash flows. The guidance also allows employers to repurchase more of an employee’s shares for tax withholding purposes without triggering liability accounting. In addition, the guidance allows for a policy election to account for forfeitures as they occur rather than on an estimated basis. The update is effective for annual periods beginning after December 15, 2016. The company is currently evaluating the impact of this update on its consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). This update is intended to improve financial reporting of leasing transactions. The ASU will require organizations that lease assets to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. This update is effective for periods beginning after December 15, 2018. The company is currently evaluating the impact of this update on its consolidated financial statements. In November 2015, the FASB issued ASU No. 2015-17, Income Taxes (Topic 740). This update simplifies the presentation of deferred income taxes and requires that deferred income tax liabilities and assets be classified as noncurrent in a classified statement of financial position. The update is effective for reporting periods beginning after December 15, 2016 and interim periods within those annual periods. The adoption of ASU 2015-17 is not expected to have a material impact on the company’s consolidated financial statements. In May 2014, FASB issued ASU 2014-09: Revenue from Contracts with Customers (Topic 606). This update sets forth a new five-step revenue recognition model that replaces the prior revenue recognition guidance in its entirety and is intended to eliminate numerous industry-specific pieces of revenue recognition guidance that have historically existed. The underlying principle of the new standard is that an organization will recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects what it expects in exchange for the goods or services. ASU 2014-09 provides alternative methods of initial adoption and is effective for annual periods beginning after December 15, 2017 and interim periods within those annual periods. Early adoption is not permitted prior to December 15, 2016. Based on its preliminary assessment, the company generally does not expect a significant change in revenue recognition when ASU 2014-09 is adopted. The Company will be putting additional processes and controls in place to enable compliance with ASU 2014-09’s disclosure requirements.

Receivables (Tables)

Receivables (Tables)	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Components of Receivables	Receivables consist of the following: December 31, 2016 December 31, 2015 Amounts billed to clients $ 8.8 $ 4.2 Unbilled revenue — 0.7 8.8 4.9 Allowances for doubtful accounts 0.3 — Receivables, net $ 8.5 $ 4.9

Current Prepaid Expenses (Table

Current Prepaid Expenses (Tables)	12 Months Ended
	Dec. 31, 2016
Prepaid Expenses Disclosure [Abstract]
Summary of Current Prepaid Expenses	Current prepaid expenses consisted of the following: December 31, 2016 December 31, 2015 Deferred costs $ 1.7 $ 1.6 Prepaid commissions 1.2 1.4 Other 1.5 1.6 Total $ 4.4 $ 4.6

Equipment and Leasehold Impro34

Equipment and Leasehold Improvements (Tables)	12 Months Ended
	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Components of Equipment and Leasehold Improvements	Equipment and leasehold improvements consist of the following: December 31, 2016 December 31, 2015 Computers and software $ 24.3 $ 19.8 Furniture and equipment 0.7 0.3 Leasehold improvements 4.3 3.2 Equipment and leasehold improvements, gross 29.3 23.3 Accumulated depreciation and amortization (19.7 ) (14.8 ) Equipment and leasehold improvements, net $ 9.6 $ 8.5

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Summary of Intangible Assets	December 31, 2016 December 31, 2015 Patents and trademarks $ 3.7 $ 3.4 Intellectual property 3.3 3.3 Gross intangible assets 7.0 6.7 Accumulated amortization of intangible assets (3.8 ) (3.4 ) Total $ 3.2 $ 3.3

Other Long-Term Assets (Tables)

Other Long-Term Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Investments All Other Investments [Abstract]
Other Long-Term Assets	Other long-term assets consisted of the following: December 31, 2016 December 31, 2015 Restricted cash $ 4.2 $ — Deferred costs 0.6 0.9 Other prepaid expenses 0.6 0.3 Prepaid commissions 0.5 1.2 Other 0.1 0.1 Total $ 6.0 $ 2.5

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Restricted Stock Award Activity	Restricted stock award activity was as follows for 2014, 2015, and 2016: Shares Weighted Average Price Nonvested balance at December 31, 2013 450,223 $ 6.25 Granted 609,355 $ 5.70 Vested (458,888 ) $ 6.12 Forfeited (44,496 ) $ 6.13 Nonvested balance at December 31, 2014 556,194 $ 5.76 Granted 825,120 $ 6.78 Vested (493,270 ) $ 6.18 Forfeited (53,819 ) $ 6.15 Nonvested balance at December 31, 2015 834,225 $ 6.49 Granted 950,340 $ 3.89 Vested (380,218 ) $ 5.34 Forfeited (220,594 ) $ 5.98 Nonvested balance at December 31, 2016 1,183,753 $ 4.87 2016 2015 2014 Total fair value of restricted stock awards vested $ 1.6 $ 3.3 $ 2.6 Compensation expense related to restricted stock awards $ 4.0 $ 2.3 $ 1.7
Stock Option Activity	Option activity was as follows for the years presented: Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) Weighted Average Fair Value of Option Grants Outstanding as of December 31, 2013 2,014,238 $ 7.98 7.0 Exercisable as of December 31, 2013 1,204,786 $ 9.66 5.8 Granted 654,000 $ 5.63 $ 3.33 Exercised (2,914 ) $ 5.15 Forfeited (28,728 ) $ 5.85 Outstanding as of December 31, 2014 2,636,596 $ 7.42 6.8 Exercisable as of December 31, 2014 1,582,165 $ 8.70 5.6 Outstanding intrinsic value at December 31, 2014 $ 2.1 Exercisable intrinsic value at December 31, 2014 $ 1.1 Granted 222,625 $ 6.57 $ 3.55 Exercised (59,638 ) $ 4.76 Forfeited (192,166 ) $ 7.47 Outstanding as of December 31, 2015 2,607,417 $ 7.41 6.0 Exercisable as of December 31, 2015 1,967,825 $ 7.97 5.2 Outstanding intrinsic value at December 31, 2015 $ 2.4 Exercisable intrinsic value at December 31, 2015 $ 1.8 Granted 115,000 $ 3.82 $ 1.85 Exercised (56,250 ) $ 4.20 Forfeited (74,026 ) $ 6.13 Outstanding as of December 31, 2016 2,592,141 $ 7.36 4.9 Exercisable as of December 31, 2016 2,282,476 $ 7.61 4.5 Outstanding intrinsic value at December 31, 2016 $ — Exercisable intrinsic value at December 31, 2016 $ — 2016 2015 2014 Compensation expense related to option awards $ 1.1 $ 1.7 $ 1.4 2016 2015 2014 Total fair value of stock options vested $ 1.1 $ 1.7 $ 1.3 Intrinsic value of stock options exercised — 0.1 — Proceeds received from option exercises 0.2 0.3 —
Summary of Stock Options Granted by Range of Exercise Price	The following table summarizes the stock options granted during 2016, 2015, and 2014 by range of exercise price: 2016 2015 2014 Options granted 115,000 222,625 654,000 Range of exercise price $3.57 - $4.40 $6.13 - $6.90 $4.88 - $6.38
Fair Value for Options Granted	The Company used the following weighted average assumptions: 2016 2015 2014 Risk-free interest rates 0.81 % 1.03 % 1.4 % Expected dividend yield — — — Expected volatility 54 % 58 % 65 % Expected lives 5.5 years 6.0 years 6.0 years
Employee Stock Purchase Plan	As of December 31, 2016, there remains 85,782 shares available for issuance under ESPP. The shares of Common Stock issued in respect of employee purchases under the ESPP during 2016, 2015, and 2014, were as follows: 2016 2015 2014 Shares of common stock issued 88,282 41,026 34,351 Expense related to ESPP (in thousands) $ 95 $ 61 $ 44
Fair Value of ESPP Purchases	The fair value for ESPP purchases during 2016, 2015, and 2014, was estimated using a Black Scholes model. The Company used the following weighted average assumptions: 2016 2015 2014 Risk-free interest rates 0.25 % 0.01 % 0.04 % Expected dividend yield — — — Expected volatility 48 % 37 % 42 % Expected lives 0.25 years 0.25 years 0.25 years

Other Current Liabilities (Tabl

Other Current Liabilities (Tables)	12 Months Ended
	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Other Current Liabilities	December 31, 2016 December 31, 2015 Accrued vendor payable $ 1.9 $ 0.7 Warrant liability 0.8 — Deferred rent liability 0.4 0.3 Other 0.3 0.8 Total $ 3.4 $ 1.8

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Schedule of Future Minimum Lease Payments Under Capital Leases	The following is a schedule, by year, of future minimum lease payments under capital leases, together with the present value of the net minimum lease payments as of December 31, 2016: (In millions) Year Amount 2017 $ 2.0 2018 1.5 2019 0.4 2020 — Total minimum lease payments $ 3.9 Less: estimated executory costs — Net minimum lease payments $ 3.9 Less: amount representing interest (0.3 ) Present value of minimum lease payments $ 3.6
Summary of Capital Leases Included in Equipment and Leasehold Improvements	Capital leases included in equipment and leasehold improvements (see Note Five — December 31, 2016 December 31, 2015 Computers and software $ 6.5 $ 6.0 Accumulated depreciation and amortization (2.9 ) (2.6 ) Computers and software, net $ 3.6 $ 3.4
Future Minimum Rental Commitments Under Non-Cancelable Operating Leases	Future minimum rental commitments under non-cancelable operating leases with terms in excess of one year are as follows: (in millions) Year Amount 2017 $ 1.1 2018 0.7 2019 0.6 2020 0.5 2021 0.5 Thereafter 0.5 Total minimum payments required $ 3.9

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Summary of Debt	Debt consisted of the following at December 31, 2016: (In millions) Amount Hercules Capital, Inc. loan due February 1, 2020, effective rate of 14.50% $ 22.5 Furniture loan due May 2021, effective rate of 9.10% 0.1 Furniture loan due May 2021, effective rate of 9.55% 0.1 Furniture loan due July 2019, effective rate of 13.98% 0.1 Total debt (1) $ 22.8 (1) The current portion of the principal due was $0.7 million at December 31, 2016.
Summary of Debt Maturities	Debt maturities were as follows as of December 31, 2016: (In millions) Year Amount 2017 $ 0.7 2018 8.3 2019 9.2 2020 4.5 2021 0.1

Other Long-Term Liabilities (Ta

Other Long-Term Liabilities (Tables)	12 Months Ended
	Dec. 31, 2016
Payables And Accruals [Abstract]
Summary of Other Long-Term Liabilities	December 31, 2016 December 31, 2015 7% Series B convertible preferred stock dividend payable $ 2.6 $ 2.1 Deferred rent liability 2.2 1.7 Intellectual property purchase liability 0.8 1.6 Deferred tax liability 0.3 0.3 Total $ 5.9 $ 5.7

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Loss before Income Taxes	Loss before income taxes consisted of the following: 2016 2015 2014 United States $ (20.9 ) $ (15.5 ) $ (14.2 ) Foreign — (0.1 ) — Total $ (20.9 ) $ (15.6 ) $ (14.2 )
Income Tax (Provision) Benefit	The income tax (provision) benefit consists of the following: 2016 2015 2014 Current: Federal $ (0.1 ) $ — $ — State — — — Foreign — — — Total current (0.1 ) — — Deferred: Federal — — — State — — — Foreign — — — Total deferred — — — Income tax (provision) benefit $ (0.1 ) $ — $ —
Total Income Tax Benefit	Total income tax benefit differed from the amount computed by applying the federal statutory income tax rate due to the following: 2016 2015 2014 Federal tax benefit, at statutory rate $ 7.2 $ 5.5 $ 5.0 State tax benefit, net of federal benefit 0.6 0.4 0.4 Nondeductible expenses (0.3 ) 0.1 (0.2 ) Other 0.1 (1.1 ) (0.3 ) Valuation allowance (7.7 ) (4.9 ) (4.9 ) Income tax (provision) benefit $ (0.1 ) $ — $ —
Reconciliation of Gross Amounts of Unrecognized Tax Benefits	A reconciliation of the gross amounts of unrecognized tax benefits at the beginning and end of the year are as follows: 2016 2015 2014 Balance at beginning of year $ 12.7 $ 12.7 $ 12.6 Additions based on tax positions related to the current year — — — Additions for tax positions of prior years — — 0.1 Reductions for tax positions of prior years — — — Reductions for tax positions as a result of lapse of statute — — — Settlements — — — Balance at end of year $ 12.7 $ 12.7 $ 12.7
Deferred Tax Assets and Liabilities	Deferred tax assets and liabilities comprised the following: December 31, 2016 December 31, 2015 Deferred tax assets: Net operating loss carryforwards $ 75.2 $ 70.8 Other accruals 8.8 5.6 Depreciation and amortization, including goodwill 0.8 0.4 Tax credit carryforward 0.5 0.5 Valuation allowance (83.8 ) (75.8 ) Total deferred tax assets 1.5 1.5 Deferred tax liabilities: Prepaid expenses (1.7 ) (1.7 ) Total deferred tax liabilities (1.7 ) (1.7 ) Net deferred tax liability $ (0.2 ) $ (0.2 )

Loss Per Share (Tables)

Loss Per Share (Tables)	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Calculation of Loss Per Share	The following table sets forth the loss per share calculation for the periods presented: 2016 2015 2014 Net loss $ (21.0 ) $ (15.7 ) $ (14.2 ) Dividends related to Series B convertible preferred stock (1) (0.6 ) (0.6 ) (0.6 ) Net loss available to common stockholders $ (21.6 ) $ (16.3 ) $ (14.8 ) Per share of Common Stock Basic/diluted net loss available to common stockholders $ (0.86 ) $ (0.70 ) $ (0.74 ) Weighted average shares outstanding (basic and diluted) (in millions) 25.21 23.26 19.92 Currently anti-dilutive common stock equivalents (2) (in millions) 1.73 2.21 2.02 (1) Dividends on 7% Series B convertible preferred stock (Series B stock) are cumulative and have been accrued from July 1, 2012 to December 31, 2016. The total accrued dividends are $2.6 million as of December 31, 2016, which will continue to be accrued until they are declared by the board of directors. Dividends related to Series B convertible preferred stock were accrued but not paid during 2016, 2015 and 2014 . (2) In periods in which there was a loss, the effect of Common Stock equivalents, which is primarily related to the Series B Stock, was not included in the diluted loss per share calculation as it was antidilutive.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Financial Instruments Measured at Fair Value Measured on Recurring Basis	The following table presents financial instruments measured at fair value measured on a recurring basis: December 31, 2016 Carrying value Level 1 Level 2 Level 3 Cash and cash equivalents - money market fund $ 12.1 $ 12.1 $ — $ — Warrant liability 0.8 — — 0.8 December 31, 2015 Carrying value Level 1 Level 2 Level 3 Cash and cash equivalents - money market fund $ 13.7 $ 13.7 $ — $ — Warrant liability — — — —
Summary of Activities in Company's Level 3 Warrants	The following table represents the activity in the Company’s Level 3 warrants during the years ended: (In millions) Amount Level 3 warrants, ending balance at December 31, 2013 $ 0.8 Change in fair value of warrant liability 0.1 Warrant exercise (0.5 ) Level 3 warrants, ending balance at December 31, 2014 0.4 Change in fair value of warrant liability — Warrant exercise (0.4 ) Level 3 warrants, ending balance at December 31, 2015 — Addition - Hercules warrants, initial fair value 0.9 Change in fair value of warrant liability (0.1 ) Level 3 warrants, ending balance at December 31, 2016 $ 0.8

Quarterly Data (Unaudited) (Tab

Quarterly Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Data	2016 1st 2nd 3rd 4th Year Total revenue $ 10.0 $ 9.1 $ 10.4 $ 12.6 $ 42.1 Gross margin $ 6.8 $ 5.9 $ 7.0 $ 8.6 $ 28.3 Operating loss $ (5.6 ) $ (6.0 ) $ (5.0 ) $ (2.2 ) $ (18.8 ) Loss before income taxes $ (5.8 ) $ (6.2 ) $ (5.8 ) $ (3.1 ) $ (20.9 ) Net loss available to common stockholders $ (6.0 ) $ (6.3 ) $ (6.0 ) $ (3.3 ) $ (21.6 ) Per share of common stock: Basic net loss available to common stockholders $ (0.24 ) $ (0.25 ) $ (0.24 ) $ (0.13 ) $ (0.86 ) Diluted net loss available to common stockholders $ (0.24 ) $ (0.25 ) $ (0.24 ) $ (0.13 ) $ (0.86 ) 2015 1st 2nd 3rd 4th Year Total revenue $ 9.3 $ 9.7 $ 10.5 $ 10.4 $ 39.9 Gross margin $ 6.7 $ 7.0 $ 8.0 $ 7.5 $ 29.2 Operating loss $ (3.7 ) $ (3.4 ) $ (3.8 ) $ (4.2 ) $ (15.1 ) Loss before income taxes $ (3.8 ) $ (3.6 ) $ (3.9 ) $ (4.3 ) $ (15.6 ) Net loss available to common stockholders $ (4.0 ) $ (3.7 ) $ (4.1 ) $ (4.5 ) $ (16.3 ) Per share of common stock: Basic net loss available to common stockholders $ (0.18 ) $ (0.17 ) $ (0.17 ) $ (0.18 ) $ (0.70 ) Diluted net loss available to common stockholders $ (0.18 ) $ (0.17 ) $ (0.17 ) $ (0.18 ) $ (0.70 )

Summary of Significant Accoun46

Summary of Significant Accounting Policies - Subscription Revenue - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016
Short Term [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Subscription contract period	3 months
Short Term [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Subscription contract period	12 months
Long Term [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Subscription contract period	1 year
Long Term [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Subscription contract period	3 years

Summary of Significant Accoun47

Summary of Significant Accounting Policies - Loss Per Common Share - Additional Information (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Summary Of Significant Accounting Policies [Line Items]
Common Stock, par value	$ 0.01	$ 0.01
Convertible Preferred Stock [Member]
Summary Of Significant Accounting Policies [Line Items]
Convertible preferred stock interest rate	7.00%

Summary of Significant Accoun48

Summary of Significant Accounting Policies - Concentration of Credit Risk - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016USD ($)Client	Dec. 31, 2015Client	Dec. 31, 2014Client
Total Revenue [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of clients | Client	3	3	3
Total Revenue [Member] | Credit Concentration Risk [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	10.00%	10.00%	10.00%
Total Revenue [Member] | Credit Concentration Risk [Member] | United HealthCare Services Inc [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	33.00%	31.00%	25.00%
Total Revenue [Member] | Credit Concentration Risk [Member] | CVS Caremark Corporation [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	15.00%	13.00%
Total Revenue [Member] | Credit Concentration Risk [Member] | Progressive Casualty Insurance Company [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	11.00%	15.00%	20.00%
Total Revenue [Member] | Credit Concentration Risk [Member] | Health Care Service Corporation [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage			11.00%
Total Gross Accounts Receivable [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of clients | Client	2	2
Total Gross Accounts Receivable [Member] | Credit Concentration Risk [Member] | United HealthCare Services Inc [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	41.00%	46.00%
Total Gross Accounts Receivable [Member] | Credit Concentration Risk [Member] | CVS Caremark Corporation [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage	27.00%
Total Gross Accounts Receivable [Member] | Credit Concentration Risk [Member] | CVS Pharmacy Inc [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		19.00%
Money Market Funds [Member]
Summary Of Significant Accounting Policies [Line Items]
Interest bearing money market fund | $	$ 11,800,000
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Federal deposit insurance corporation | $	$ 250,000

Summary of Significant Accoun49

Summary of Significant Accounting Policies - Equipment and Leasehold Improvements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016
Summary Of Significant Accounting Policies [Line Items]
Capital leases term	twenty-four, thirty, or thirty-six months
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Computers and Software [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	1 year
Computers and Software [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Furniture and Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years

Summary of Significant Accoun50

Summary of Significant Accounting Policies - Income Taxes - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Percentage of likelihood for tax benefit recognized	50.00%

Summary of Significant Accoun51

Summary of Significant Accounting Policies - Stockholders' Equity - Additional Information (Detail) - shares shares in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Shares exempt from permanent equity or liability	1.6	1.6

Summary of Significant Accoun52

Summary of Significant Accounting Policies - Segments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016Segment
Accounting Policies [Abstract]
Number of operating segment	1

Receivables - Components of Rec

Receivables - Components of Receivables (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Amounts billed to clients	$ 8,800	$ 4,200
Unbilled revenue		700
Receivables, gross	8,800	4,900
Allowances for doubtful accounts	311	24
Receivables, net	$ 8,508	$ 4,863

Current Prepaid Expenses - Addi

Current Prepaid Expenses - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016
Short Term [Member] | Minimum [Member]
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Line Items]
Current prepaid expense recognition period - subscription projects	3 months
Short Term [Member] | Maximum [Member]
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Line Items]
Current prepaid expense recognition period - subscription projects	12 months
Long Term [Member] | Minimum [Member]
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Line Items]
Current prepaid expense recognition period - subscription projects	1 year
Long Term [Member] | Maximum [Member]
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Line Items]
Current prepaid expense recognition period - subscription projects	3 years

Current Prepaid Expenses - Summ

Current Prepaid Expenses - Summary of Current Prepaid Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Deferred costs	$ 1,700	$ 1,600
Prepaid commissions	1,200	1,400
Other	1,500	1,600
Total	$ 4,440	$ 4,582

Equipment and Leasehold Impro56

Equipment and Leasehold Improvements - Components of Equipment and Leasehold Improvements (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Equipment and leasehold improvements, gross	$ 29,300	$ 23,300
Accumulated depreciation and amortization	(19,748)	(14,805)
Equipment and leasehold improvements, net	9,576	8,523
Computers and Software [Member]
Property, Plant and Equipment [Line Items]
Equipment and leasehold improvements, gross	24,300	19,800
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Equipment and leasehold improvements, gross	700	300
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Equipment and leasehold improvements, gross	$ 4,300	$ 3,200

Equipment and Leasehold Impro57

Equipment and Leasehold Improvements - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 5,500,000	$ 4,400,000	$ 3,000,000
Impairment charges on Assets	0	0
Assets Held under Capital Leases [Member]
Property, Plant and Equipment [Line Items]
Assets acquired under capital leases	2,400,000	2,700,000	1,700,000
Depreciation expense on capital lease assets	$ 2,000,000	$ 2,200,000	$ 1,700,000

Intangible Assets - Additional

Intangible Assets - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization period of patent and trademark and certain intellectual property	120 months
Amortization expense of intangible assets year one	$ 0.4
Amortization expense of intangible assets year two	0.4
Amortization expense of intangible assets year three	0.4
Amortization expense of intangible assets year four	0.4
Amortization expense of intangible assets year five	0.4
Amortization expense of intangible assets after five years	$ 0.4

Intangible Assets - Summary of

Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Finite Lived Intangible Assets [Line Items]
Gross intangible assets	$ 7,000	$ 6,700
Accumulated amortization of intangible assets	(3,820)	(3,351)
Total	3,201	3,353
Patents and Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Gross intangible assets	3,700	3,400
Intellectual Property [Member]
Finite Lived Intangible Assets [Line Items]
Gross intangible assets	$ 3,300	$ 3,300

Other Long-Term Assets - Additi

Other Long-Term Assets - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016
Minimum [Member]
Other Long Term Assets [Line Items]
Costs recognized agreements term	1 year
Maximum [Member]
Other Long Term Assets [Line Items]
Costs recognized agreements term	3 years

Other Long-Term Assets - Other

Other Long-Term Assets - Other Long-Term Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Assets Noncurrent Disclosure [Abstract]
Restricted cash	$ 4,210
Deferred costs	600	$ 900
Other prepaid expenses	600	300
Prepaid commissions	500	1,200
Other	100	100
Total	$ 6,033	$ 2,467

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Postemployment Benefits [Abstract]
Contribution from eligible compensation plan	30.00%
Contribution from bonus compensation plan	100.00%
Employer match contribution expensed	$ 0.5	$ 0.4

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage increase in aggregate number of shares available for issuance	5.00%
Increase in number of shares available for issuance	1,500,000
Common stock available for grants	2,471,347
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based Compensation Expense	$ 5.3	$ 5.4	$ 4.2

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected weighted average period	1 year 4 months 24 days
Rate of forfeiture of shares	3.00%	3.00%	3.00%
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares received	950,340	825,120	609,355
Unrecognized compensation expense related to restricted stock awards	$ 2.9
Expected weighted average period	1 year 7 months 6 days
Restricted Stock [Member] | Non Employee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares received	10,000
Restricted stock, vesting percentage	25.00%
Restricted stock, vesting period	Three quarters

Stock-Based Compensation - Re65

Stock-Based Compensation - Restricted Stock Award Activity (Detail) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock nonvested, beginning balance	834,225	556,194	450,223
Restricted stock, Shares, Granted	950,340	825,120	609,355
Restricted stock, Shares, Vested	(380,218)	(493,270)	(458,888)
Restricted stock, Shares, Forfeited	(220,594)	(53,819)	(44,496)
Restricted stock nonvested, ending balance	1,183,753	834,225	556,194
Restricted stock nonvested, Weighted Average Price beginning balance	$ 6.49	$ 5.76	$ 6.25
Restricted stock nonvested, Weighted Average Price, Granted	3.89	6.78	5.70
Restricted stock, Weighted Average Price, Vested	5.34	6.18	6.12
Restricted stock nonvested, Weighted Average Price, Forfeited	5.98	6.15	6.13
Restricted stock nonvested, Weighted Average Price ending balance	$ 4.87	$ 6.49	$ 5.76

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock-Based Compensation Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restricted Stock [Member]
Unrecognized Stock Based Compensation Expense [Line Items]
Total fair value of restricted stock awards vested	$ 1.6	$ 3.3	$ 2.6
Compensation expense related to option awards	4	2.3	1.7
Stock Options [Member]
Unrecognized Stock Based Compensation Expense [Line Items]
Compensation expense related to option awards	$ 1.1	$ 1.7	$ 1.4

Stock-Based Compensation - St67

Stock-Based Compensation - Stock Options - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of options	10 years
Exercisable period of options	4 years
Options purchased shares, grants during the period	115,000	222,625	654,000
Unrecognized compensation expense related to stock options	$ 0.9
Expected weighted average period	1 year 4 months 24 days
Stock Options [Member] | Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options, vesting percentage	6.25%
Stock Options, vesting period	15 quarters
Stock Options [Member] | Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options, vesting percentage	25.00%
Stock Options, vesting period	12 quarters
Stock Options [Member] | Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options, vesting percentage	25.00%
Stock Options, vesting period	3 quarters
Non Employee Director [Member] | Commencement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable period of options	48 months
Options purchased shares, grants during the period	50,000
Non Employee Director [Member] | Post Annual Meeting [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of options	10 years
Options purchased shares, grants during the period	10,000

Stock-Based Compensation - St68

Stock-Based Compensation - Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share Based Compensation [Abstract]
Option activity, Outstanding, Beginning balance	2,607,417	2,636,596	2,014,238
Option activity, Exercisable	2,282,476	1,967,825	1,582,165	1,204,786
Option activity shares, Granted	115,000	222,625	654,000
Option activity, Exercised	(56,250)	(59,638)	(2,914)
Option activity, Forfeited	(74,026)	(192,166)	(28,728)
Option activity outstanding, Ending balance	2,592,141	2,607,417	2,636,596	2,014,238
Option activity, Outstanding intrinsic value, Ending balance		$ 2.4	$ 2.1
Option activity, Exercisable intrinsic value, Ending balance		$ 1.8	$ 1.1
Option activity, Weighted Average Exercise Price, Outstanding, Beginning Balance	$ 7.41	$ 7.42	$ 7.98
Option activity, Weighted Average Exercise Price, Exercisable	7.61	7.97	8.70	$ 9.66
Option activity Weighted Average Exercise Price, Granted	3.82	6.57	5.63
Option activity Weighted Average Exercise Price, Exercised	4.20	4.76	5.15
Option activity Weighted Average Exercise Price, Forfeited	6.13	7.47	5.85
Option activity, Weighted Average Exercise Price, Outstanding, Ending Balance	$ 7.36	$ 7.41	$ 7.42	$ 7.98
Weighted average remaining contractual life	4 years 10 months 24 days	6 years	6 years 9 months 18 days	7 years
Weighted average remaining contractual life, Exercisable	4 years 6 months	5 years 2 months 12 days	5 years 7 months 6 days	5 years 9 months 18 days
Weighted average fair value of option grants	$ 1.85	$ 3.55	$ 3.33

Stock-Based Compensation - St69

Stock-Based Compensation - Stock Option Activity Fair Value (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share Based Compensation [Abstract]
Total fair value of stock options vested	$ 1.1	$ 1.7	$ 1.3
Intrinsic value of stock options exercised		0.1
Proceeds received from option exercises	$ 0.2	$ 0.3

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Stock Options Granted by Range of Exercise Price (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share Based Compensation [Abstract]
Options granted	115,000	222,625	654,000
Lower range of exercise price	$ 3.57	$ 6.13	$ 4.88
Upper range of exercise price	$ 4.40	$ 6.90	$ 6.38

Stock-Based Compensation - Fair

Stock-Based Compensation - Fair Value Assumptions and Methodology (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
ESPP [Member]
Fair value for options granted
Risk-free interest rates	0.25%	0.01%	0.04%
Expected dividend yield	0.00%	0.00%	0.00%
Expected volatility	48.00%	37.00%	42.00%
Expected lives	3 months	3 months	3 months
Stock Options [Member]
Fair value for options granted
Risk-free interest rates	0.81%	1.03%	1.40%
Expected dividend yield	0.00%	0.00%	0.00%
Expected volatility	54.00%	58.00%	65.00%
Expected lives	5 years 6 months	6 years	6 years

Stock-Based Compensation - Empl

Stock-Based Compensation - Employee Stock Purchase Plan - Additional Information (Detail)	Dec. 31, 2016shares
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares available for issuance	85,782

Stock-Based Compensation - Em73

Stock-Based Compensation - Employee Stock Purchase Plan (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share Based Compensation [Abstract]
Shares of common stock issued	88,282	41,026	34,351
Expense related to ESPP	$ 95	$ 61	$ 44

Other Current Liabilities - Oth

Other Current Liabilities - Other Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Liabilities Current [Abstract]
Accrued vendor payable	$ 1,900	$ 700
Warrant liability	800
Deferred rent liability	400	300
Other	300	800
Other current liabilities, Total	$ 3,374	$ 1,796

Other Current Liabilities - Add

Other Current Liabilities - Additional Information (Detail) - USD ($)	Aug. 01, 2016	Dec. 31, 2016
Class Of Warrant Or Right [Line Items]
Issuable common stock upon exercise of warrants		357,142
Tranche Three [Member]
Class Of Warrant Or Right [Line Items]
Issuable common stock upon exercise of warrants		428,570
Maximum borrowing capacity under loan agreement		$ 5,000,000
Hercules Capital, Inc., [Member] | Secured Loan Agreement [Member]
Class Of Warrant Or Right [Line Items]
Loan agreement date		Aug. 1, 2016
Common stock per share upon exercise of warrants	$ 3.50
Issuable common stock upon exercise of warrants	357,142
Maximum borrowing capacity under loan agreement	$ 30,000,000
Warrants expiration date	Aug. 1, 2023
Hercules Capital, Inc., [Member] | Secured Loan Agreement [Member] | Warrants [Member]
Class Of Warrant Or Right [Line Items]
Risk-free interest rate	1.33%
Expected volatility	53.00%
Expected term	7 years
Hercules Capital, Inc., [Member] | Secured Loan Agreement [Member] | Tranche Three [Member]
Class Of Warrant Or Right [Line Items]
Issuable common stock upon exercise of warrants	428,570
Maximum borrowing capacity under loan agreement	$ 5,000,000

Leases - Additional Information

Leases - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Capital Leased Assets [Line Items]
Gross amount of assets under capital leases	$ 6.5	$ 6
Net deferred rent	2.6	2	$ 0.1
Rental expense for all operating leases	$ 1.3	1.7	$ 2
Lease renewal option	5 years
Chicago, Illinois [Member]
Capital Leased Assets [Line Items]
Lease expiration date	Aug. 31, 2023
Austin, Texas [Member]
Capital Leased Assets [Line Items]
Lease expiration date	Aug. 31, 2023
Capital Lease Obligations [Member] | Computer Hardware and Related Equipment [Member]
Capital Leased Assets [Line Items]
Gross amount of assets under capital leases	$ 6.5	$ 6

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments Under Capital Leases (Detail) $ in Millions	Dec. 31, 2016USD ($)
Capital Leases Future Minimum Payments Due [Abstract]
2,017	$ 2
2,018	1.5
2,019	0.4
Total minimum lease payments	3.9
Net minimum lease payments	3.9
Less: amount representing interest	(0.3)
Present value of minimum lease payments	$ 3.6

Leases - Summary of Capital Lea

Leases - Summary of Capital Leases Included in Equipment and Leasehold Improvements (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Leases [Abstract]
Computers and software	$ 6.5	$ 6
Accumulated depreciation and amortization	(2.9)	(2.6)
Computers and software, net	$ 3.6	$ 3.4

Leases - Future Minimum Rental

Leases - Future Minimum Rental Commitments Under Non-Cancelable Operating Leases (Detail) $ in Millions	Dec. 31, 2016USD ($)
Leases [Abstract]
2,017	$ 1.1
2,018	0.7
2,019	0.6
2,020	0.5
2,021	0.5
Thereafter	0.5
Total minimum payments required	$ 3.9

Debt - Additional Information (

Debt - Additional Information (Detail)	Aug. 01, 2016USD ($)Tranche	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Line of Credit Facility [Line Items]
Repayment of line of credit		$ 16,246,000	$ 15,000,000	$ 7,000,000
Unamortized debt cost		600,000
Unaccreted debt discount		700,000
Letters of credit amount		$ 4,200,000
Letters of credit, expiration year, start		2,017
Letters of credit, expiration year, end		2,023
Building Leases [Member]
Line of Credit Facility [Line Items]
Costs recognized agreements term		7 years
Maximum [Member]
Line of Credit Facility [Line Items]
Costs recognized agreements term		3 years
Maximum [Member] | Equipment Leases [Member]
Line of Credit Facility [Line Items]
Costs recognized agreements term		3 years
Minimum [Member]
Line of Credit Facility [Line Items]
Costs recognized agreements term		1 year
Minimum [Member] | Equipment Leases [Member]
Line of Credit Facility [Line Items]
Costs recognized agreements term		1 year
Tranche Three [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity under loan agreement		$ 5,000,000
SVB Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility and term loan termination date		Aug. 1, 2016
Term Loan [Member]
Line of Credit Facility [Line Items]
Repayment of line of credit	$ 6,000,000
Hercules Capital, Inc., [Member] | Secured Loan Agreement [Member]
Line of Credit Facility [Line Items]
Loan agreement date		Aug. 1, 2016
Maturity period of credit facility		Feb. 1, 2020
Maximum borrowing capacity under loan agreement	$ 30,000,000
Number of allowed tranches to borrow as per agreement | Tranche	3
Annual variable interest rate, description		equal to the greater of (i) 9.75% plus the prime rate minus 3.50% or (ii) 9.75%.
Payment-in-kind interest rate	2.15%
Frequency of periodic payment		Monthly payments are interest only until December 1, 2017, subject to extension until March 1, 2018 or June 1, 2018 depending on whether certain financial milestones are met. After the interest-only period, principal and interest will be due in equal monthly payments.
Percentage of prepayment changes for due in year one outstanding amount	3.00%
Percentage of prepayment changes for due in year two outstanding amount.	2.00%
Percentage of prepayment changes for due in year three outstanding amount.	1.00%
Minimum required covenants percentage of trailing six month subscription revenue	80.00%
Number of trailing months of subscription revenue		6 months
Minimum required covenants unrestricted cash	$ 7,500,000
Minimum required covenants EBITDA for two consecutive quarters	1,000,000
Expected revised minimum required covenants unrestricted cash after two consecutive quarters.	$ 6,000,000
Hercules Capital, Inc., [Member] | Secured Loan Agreement [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Annual interest, stated percentage	9.75%
Hercules Capital, Inc., [Member] | Secured Loan Agreement [Member] | Prime Rate [Member]
Line of Credit Facility [Line Items]
Variable interest rate	3.50%
Hercules Capital, Inc., [Member] | Secured Loan Agreement [Member] | Tranche One [Member]
Line of Credit Facility [Line Items]
Borrowed amount under loan agreement	$ 22,500,000
Hercules Capital, Inc., [Member] | Secured Loan Agreement [Member] | Tranche Two [Member]
Line of Credit Facility [Line Items]
Maturity period of credit facility		Sep. 15, 2017
Maximum borrowing capacity under loan agreement	2,500,000
Line of credit facility, initiation date		Jul. 1, 2017
Hercules Capital, Inc., [Member] | Secured Loan Agreement [Member] | Tranche Three [Member]
Line of Credit Facility [Line Items]
Maturity period of credit facility		Sep. 15, 2018
Maximum borrowing capacity under loan agreement	$ 5,000,000
Line of credit facility, initiation date		Sep. 15, 2017

Debt - Summary of Debt (Detail)

Debt - Summary of Debt (Detail) $ in Millions	Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Total debt	$ 22.8
Hercules Capital, Inc. loan due February 1, 2020, effective rate of 14.50% [Member]
Debt Instrument [Line Items]
Total debt	22.5
Furniture loan due May 2021, effective rate of 9.10% [Member]
Debt Instrument [Line Items]
Total debt	0.1
Furniture loan due May 2021, effective rate of 9.55% [Member]
Debt Instrument [Line Items]
Total debt	0.1
Furniture loan due July 2019, effective rate of 13.98% [Member]
Debt Instrument [Line Items]
Total debt	$ 0.1

Debt - Summary of Debt (Parenth

Debt - Summary of Debt (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Current portion of principal due	$ 0.7
Hercules Capital, Inc. loan due February 1, 2020, effective rate of 14.50% [Member]
Debt Instrument [Line Items]
Loan due date	Feb. 1, 2020
Effective rate of borrowing	14.50%
Furniture loan due May 2021, effective rate of 9.10% [Member]
Debt Instrument [Line Items]
Effective rate of borrowing	9.10%
Loan due date	2021-05
Furniture loan due May 2021, effective rate of 9.55% [Member]
Debt Instrument [Line Items]
Effective rate of borrowing	9.55%
Loan due date	2021-05
Furniture loan due July 2019, effective rate of 13.98% [Member]
Debt Instrument [Line Items]
Effective rate of borrowing	13.98%
Loan due date	2019-07

Debt - Summary of Debt Maturiti

Debt - Summary of Debt Maturities (Detail) $ in Millions	Dec. 31, 2016USD ($)
Debt Disclosure [Abstract]
2,017	$ 0.7
2,018	8.3
2,019	9.2
2,020	4.5
2,021	$ 0.1

Other Long-Term Liabilities - S

Other Long-Term Liabilities - Summary of Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Payables And Accruals [Abstract]
7% Series B convertible preferred stock dividend payable	$ 2,600	$ 2,100
Deferred rent liability	2,200	1,700
Intellectual property purchase liability	800	1,600
Deferred tax liability	300	300
Total	$ 5,945	$ 5,689

Other Long-Term Liabilities -85

Other Long-Term Liabilities - Summary of Other Long-Term Liabilities (Parenthetical) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Series B Convertible Preferred Stock [Member]
Other Long Term Liabilities [Line Items]
Convertible preferred stock interest rate	7.00%	7.00%	7.00%

Capital Stock and Series B St86

Capital Stock and Series B Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Jul. 22, 2015	Jul. 23, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Class Of Stock [Line Items]
Authorized capital stock			50,000,000	50,000,000
Preferred stock, shares authorized			35,000,000	35,000,000
Preferred stock, shares issued			0	0
Preferred stock, shares outstanding			0	0
Shares issued in private placement			27,511,361	27,636,853
Aggregate proceeds received from offering, net of fees				$ 15,942	$ 11,138
Common Stock Purchase Agreement [Member]
Class Of Stock [Line Items]
Gross proceeds in private placement	$ 16,200
Shares issued in private placement	2,728,712	2,891,566
Common stock price		$ 4.15
Percentage of issued and outstanding common stock to be issued as private placement	12.00%	15.00%
Aggregate proceeds received from offering, net of fees	$ 15,900	$ 11,100
Financial advisor fees	$ 200
Percentage of commission		7.00%
Commission expense		$ 800
Common Stock Purchase Agreement [Member] | Officers And Directors [Member]
Class Of Stock [Line Items]
Shares issued in private placement	165,474
Common stock price	$ 6.11
Common Stock Purchase Agreement [Member] | Investor [Member]
Class Of Stock [Line Items]
Shares issued in private placement	2,563,238
Common stock price	$ 5.93
Convertible Preferred Stock [Member]
Class Of Stock [Line Items]
Rate of dividend accrued			7.00%
Series B Preferred Stock [Member]
Class Of Stock [Line Items]
Preferred stock, shares authorized			5,000,000	5,000,000
Preferred stock, shares issued			1,637,948	1,644,768
Preferred stock, shares outstanding			1,637,948	1,644,768
Preferred Stock [Member]
Class Of Stock [Line Items]
Preferred stock, shares authorized			40,000,000	40,000,000

Income Taxes - Loss before Inco

Income Taxes - Loss before Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
United States									$ (20,900)	$ (15,500)	$ (14,200)
Foreign										(100)
Loss before income taxes	$ (3,100)	$ (5,800)	$ (6,200)	$ (5,800)	$ (4,300)	$ (3,900)	$ (3,600)	$ (3,800)	$ (20,927)	$ (15,643)	$ (14,209)

Income Taxes - Income Tax (Prov

Income Taxes - Income Tax (Provision) Benefit (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ (100)	$ 0	$ 0
State	0	0	0
Foreign	0	0	0
Total current	(100)	0	0
Deferred:
Federal	0	0	0
State	0	0	0
Foreign	0	0	0
Total deferred	0	0	0
Income tax (provision) benefit	$ (50)	$ (38)	$ (23)

Income Taxes - Total Income Tax

Income Taxes - Total Income Tax Benefit (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Federal tax benefit, at statutory rate	$ 7,200	$ 5,500	$ 5,000
State tax benefit, net of federal benefit	600	400	400
Nondeductible expenses	(300)	100	(200)
Other	100	(1,100)	(300)
Valuation allowance	(7,700)	(4,900)	(4,900)
Income tax (provision) benefit	$ (50)	$ (38)	$ (23)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Line Items]
Tax benefits recognized in financial statements	50.00%
Change in the unrecognized tax benefits, period	Within the next twelve months
Impact of Net Operating Losses Carryforward	$ 0
Potential ownership change, testing period	3 years
State Impact of Federal Changes	Up to one year
Valuation allowance	$ 83,800,000	$ 75,800,000
Net operating loss carryforwards	240,800,000
Research and development credit carryforwards	$ 500,000
Expire date of research and development credit carryforwards	2,020
Ownership of stockholders of company's common stock	50.00%
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 127,700,000
Expire date of Net Operating losses	2,017
Domestic Tax Authority [Member]
Income Taxes [Line Items]
Expire date of Net Operating losses	2,022
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 600,000
Expire date of Net Operating losses	2,029
Minimum [Member]
Income Taxes [Line Items]
Statutes of limitations of state jurisdictions	3 years
Minimum [Member] | Common Stock Issued [Member]
Income Taxes [Line Items]
Ownership of stockholders of company's common stock	5.00%
Maximum [Member]
Income Taxes [Line Items]
Statutes of limitations of state jurisdictions	5 years

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Gross Amounts of Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Balance at beginning of year	$ 12.7	$ 12.7	$ 12.6
Additions based on tax positions related to the current year	0	0	0
Additions for tax positions of prior years	0	0	0.1
Reductions for tax positions of prior years	0	0	0
Reductions for tax positions as a result of lapse of statute	0	0	0
Settlements	0	0	0
Balance at end of year	$ 12.7	$ 12.7	$ 12.7

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Net operating loss carryforwards	$ 75.2	$ 70.8
Other accruals	8.8	5.6
Depreciation and amortization, including goodwill	0.8	0.4
Tax credit carryforward	0.5	0.5
Valuation allowance	(83.8)	(75.8)
Total deferred tax assets	1.5	1.5
Deferred tax liabilities:
Prepaid expenses	(1.7)	(1.7)
Total deferred tax liabilities	(1.7)	(1.7)
Net deferred tax liability	$ (0.2)	$ (0.2)

Loss Per Share - Calculation of

Loss Per Share - Calculation of Loss Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Net loss									$ (20,977)	$ (15,681)	$ (14,232)
Dividends related to 7% Series B convertible preferred stock									(586)	(588)	(589)
Net loss available to common stockholders	$ (3,300)	$ (6,000)	$ (6,300)	$ (6,000)	$ (4,500)	$ (4,100)	$ (3,700)	$ (4,000)	$ (21,563)	$ (16,269)	$ (14,821)
Per share of Common Stock
Basic/diluted net loss available to common stockholders	$ (0.13)	$ (0.24)	$ (0.25)	$ (0.24)	$ (0.18)	$ (0.17)	$ (0.17)	$ (0.18)	$ (0.86)	$ (0.70)	$ (0.74)
Weighted average shares outstanding (basic and diluted)									25,210	23,260	19,920
Currently anti-dilutive common stock equivalents									1,730	2,210	2,020

Loss Per Share - Calculation 94

Loss Per Share - Calculation of Loss Per Share (Parenthetical) (Detail) - Series B Stock [Member] - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Convertible preferred stock interest rate	7.00%	7.00%	7.00%
Suspended dividend payment	$ 2,600,000
Dividends accrued but not paid	$ 0	$ 0	$ 0

Fair Value Measurements - Finan

Fair Value Measurements - Financial Instruments Measured at Fair Value Measured on Recurring Basis (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability	$ 0.8
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents - money market fund	11.8
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability	0.8
Fair Value, Measurements, Recurring [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents - money market fund	12.1	$ 13.7
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents - money market fund	12.1	$ 13.7
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability	$ 0.8

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Activities in Company's Level 3 Warrants (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Changes In Fair Value Of Warrant Liability [Line Items]
Change in fair value of warrant liability	$ (167)	$ (3)	$ 124
Level 3 [Member]
Schedule Of Changes In Fair Value Of Warrant Liability [Line Items]
Level 3 warrants, beginning of period	0	400	800
Addition - Hercules warrants, initial fair value	900
Change in fair value of warrant liability	(100)	0	100
Warrant exercise		(400)	(500)
Level 3 warrants, end of period	$ 800	$ 0	$ 400

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016USD ($)shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Issuable common stock upon exercise of warrants | shares	357,142
Transfer of assets and liabilities between levels	$ 0
Assets fair value on nonrecurring basis	0
Liabilities fair value on nonrecurring basis	0
Long-Term Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 22,800,000
Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Risk free rate	2.18%
Expected volatility	53.00%
Expected term	6 years 7 months 2 days
Tranche Three [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Issuable common stock upon exercise of warrants | shares	428,570
Maximum borrowing capacity under loan agreement	$ 5,000,000
Percentage of probability assigned	0.00%

Litigation and Other Continge98

Litigation and Other Contingencies - Additional Information (Detail)	Dec. 31, 2016USD ($)
Maximum [Member]
Loss Contingencies [Line Items]
Sales tax liability	$ 100,000
Indemnification Agreement [Member]
Loss Contingencies [Line Items]
Recorded liabilities corresponding to agreements	$ 0

Quarterly Data (Unaudited) - Su

Quarterly Data (Unaudited) - Summary of Quarterly Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Total revenue	$ 12,600	$ 10,400	$ 9,100	$ 10,000	$ 10,400	$ 10,500	$ 9,700	$ 9,300	$ 42,097	$ 39,912	$ 30,319
Gross margin	8,600	7,000	5,900	6,800	7,500	8,000	7,000	6,700	28,300	29,200
Operating loss	(2,200)	(5,000)	(6,000)	(5,600)	(4,200)	(3,800)	(3,400)	(3,700)	(18,814)	(15,056)	(12,995)
Loss before income taxes	(3,100)	(5,800)	(6,200)	(5,800)	(4,300)	(3,900)	(3,600)	(3,800)	(20,927)	(15,643)	(14,209)
Net loss available to common stockholders	$ (3,300)	$ (6,000)	$ (6,300)	$ (6,000)	$ (4,500)	$ (4,100)	$ (3,700)	$ (4,000)	$ (21,563)	$ (16,269)	$ (14,821)
Per share of common stock:
Basic net loss available to common stock holders	$ (0.13)	$ (0.24)	$ (0.25)	$ (0.24)	$ (0.18)	$ (0.17)	$ (0.17)	$ (0.18)	$ (0.86)	$ (0.70)	$ (0.74)
Diluted net loss available to common stock holders	$ (0.13)	$ (0.24)	$ (0.25)	$ (0.24)	$ (0.18)	$ (0.17)	$ (0.17)	$ (0.18)	$ (0.86)	$ (0.70)	$ (0.74)

Subsequent Event - Additional I

Subsequent Event - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Mar. 01, 2017	Feb. 23, 2017	Jul. 22, 2015	Jul. 23, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2016
Subsequent Event [Line Items]
Shares issued in private placement					27,636,853		27,511,361
Aggregate proceeds received from offering, net of fees					$ 15,942	$ 11,138
Common Stock Purchase Agreement [Member]
Subsequent Event [Line Items]
Shares issued in private placement			2,728,712	2,891,566
Gross proceeds in private placement			$ 16,200
Common stock price				$ 4.15
Percentage of issued and outstanding common stock to be issued as private placement			12.00%	15.00%
Aggregate proceeds received from offering, net of fees			$ 15,900	$ 11,100
Commission expense				$ 800
Common Stock Purchase Agreement [Member] | Investor [Member]
Subsequent Event [Line Items]
Shares issued in private placement			2,563,238
Common stock price			$ 5.93
Common Stock Purchase Agreement [Member] | Officers And Directors [Member]
Subsequent Event [Line Items]
Shares issued in private placement			165,474
Common stock price			$ 6.11
Subsequent Event [Member] | Common Stock Purchase Agreement [Member]
Subsequent Event [Line Items]
Shares issued in private placement		5,328,187
Gross proceeds in private placement		$ 16,000
Percentage of issued and outstanding common stock to be issued as private placement		20.00%
Aggregate proceeds received from offering, net of fees	$ 14,900
Commission expense	$ 1,100
Subsequent Event [Member] | Common Stock Purchase Agreement [Member] | Investor [Member]
Subsequent Event [Line Items]
Shares issued in private placement		5,228,187
Common stock price		$ 3
Subsequent Event [Member] | Common Stock Purchase Agreement [Member] | Officers And Directors [Member]
Subsequent Event [Line Items]
Shares issued in private placement		100,000
Common stock price		$ 3.45

Valuation and Qualifying Acc101

Valuation and Qualifying Accounts (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Valuation Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Additions Charged to Costs and Expenses	$ 0.3
Additions Charged to Other Accounts	0	$ 0	$ 0
Deductions	0	0	0
Balance at End of Period	0.3
Valuation Allowance for Deferred Tax Assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	75.8	71	67.6
Additions Charged to Costs and Expenses	8	4.8	3.4
Additions Charged to Other Accounts	0	0	0
Deductions	0	0	0
Balance at End of Period	$ 83.8	$ 75.8	$ 71