AppFolio (APPF) 10-Q 5 May 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	3 Months Ended
	Mar. 31, 2017	Apr. 21, 2017
Document Information [Line Items]
Entity Registrant Name	APPFOLIO INC
Entity Central Index Key	1,433,195
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Amendment Flag	false
Class A common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		12,287,338
Class B common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		21,567,304

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 7,969	$ 10,699
Investment securities—current	19,355	15,473
Accounts receivable, net	3,815	2,511
Prepaid expenses and other current assets	3,135	3,537
Total current assets	34,274	32,220
Investment securities—noncurrent	24,933	26,688
Property and equipment, net	6,635	7,077
Capitalized software, net	16,363	15,539
Goodwill	6,737	6,737
Intangible assets, net	2,756	3,105
Other assets	1,196	1,217
Total assets	92,894	92,583
Current liabilities
Accounts payable	700	937
Accrued employee expenses	5,626	7,550
Accrued expenses	4,520	4,044
Deferred revenue	8,697	7,638
Other current liabilities	1,402	1,192
Total current liabilities	20,945	21,361
Other liabilities	1,456	1,540
Total liabilities	22,401	22,901
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.0001 par value, 25,000 authorized and no shares issued and outstanding as of March 31, 2017 and December 31, 2016	0	0
Additional paid-in capital	146,821	146,692
Accumulated other comprehensive loss	(29)	(51)
Accumulated deficit	(76,303)	(76,963)
Total stockholders’ equity	70,493	69,682
Total liabilities and stockholders’ equity	92,894	92,583
Class A common stock, $0.0001 par value, 250,000 shares authorized as of March 31, 2017 and December 31, 2016; 12,249 and 11,691 shares issued and outstanding as of March 31, 2017 and December 31, 2016, respectively;
Stockholders’ equity:
Common stock	1	1
Class B common stock, $0.0001 par value, 50,000 shares authorized as of March 31, 2017 and December 31, 2016; 21,576 and 22,028 shares issued and outstanding as of March 31, 2017 and December 31, 2016, respectively;
Stockholders’ equity:
Common stock	$ 3	$ 3

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2017	Dec. 31, 2016
Preferred stock, par value (usd per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Class A common stock
Common stock, par value (usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	12,249,000	11,691,000
Common stock, shares outstanding	12,249,000	11,691,000
Class B common stock
Common stock, par value (usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	21,576,000	22,028,000
Common stock, shares outstanding	21,576,000	22,028,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue	$ 32,126	$ 23,211
Costs and operating expenses:
Cost of revenue (exclusive of depreciation and amortization)	12,993	10,530
Sales and marketing	7,107	7,551
Research and product development	3,629	3,043
General and administrative	4,804	3,549
Depreciation and amortization	2,996	2,117
Total costs and operating expenses	31,529	26,790
Income (loss) from operations	597	(3,579)
Other expense, net	(28)	(24)
Interest income, net	102	24
Income (loss) before provision for income taxes	671	(3,579)
Provision for income taxes	11	24
Net income (loss)	$ 660	$ (3,603)
Net income (loss) per common share:
Net income (loss) per share, basic (usd per share)	$ 0.02	$ (0.11)
Net income (loss) per share, diluted (usd per share)	$ 0.02	$ (0.11)
Weighted average common shares outstanding:
Weighted average number of shares used to compute basic net income (loss) per share	33,706	33,463
Weighted average number of shares used to compute diluted net income per share	34,765	33,463

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 660	$ (3,603)
Other comprehensive income:
Changes in unrealized gains on investment securities	22	300
Comprehensive income (loss)	$ 682	$ (3,303)

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - 3 months ended Mar. 31, 2017 - USD ($) shares in Thousands, $ in Thousands	Total	Common StockClass A common stock	Common StockClass B common stock	Additional Paid-in Capital	Accumulated Other Comprehensive (Loss)/Income	Accumulated Deficit
Beginning balance at Dec. 31, 2016	$ 69,682	$ 1	$ 3	$ 146,692	$ (51)	$ (76,963)
Beginning balance (in shares) at Dec. 31, 2016		11,691	22,028
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options	$ 145			145
Exercise of stock options (in shares)	41	41
Stock-based compensation	$ 1,176			1,176
Vesting of restricted stock units, net of shares withheld for taxes	(1,207)			(1,207)
Vesting of restricted stock units, net of shares withheld for taxes (in shares)		65
Vesting of early exercised shares	15			15
Conversion of Class B stock to Class A stock	0
Conversion of Class B stock to Class A stock (in shares)		452	(452)
Other comprehensive income	22				22
Net income	660					660
Ending balance at Mar. 31, 2017	$ 70,493	$ 1	$ 3	$ 146,821	$ (29)	$ (76,303)
Ending balance (in shares) at Mar. 31, 2017		12,249	21,576

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash from operating activities
Net income (loss)	$ 660	$ (3,603)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	2,996	2,117
Purchased investment premium, net of amortization	(14)	145
Amortization of deferred financing costs	16	16
Loss on disposal of property and equipment	28	29
Stock-based compensation	1,097	463
Lease abandonment	0	91
Changes in operating assets and liabilities:
Accounts receivable	(1,303)	(594)
Prepaid expenses and other current assets	402	(1,281)
Other assets	5	(110)
Accounts payable	(19)	(653)
Accrued employee expenses	(1,662)	94
Accrued expenses	473	987
Deferred revenue	1,059	705
Other liabilities	69	858
Net cash provided by (used in) operating activities	3,807	(736)
Cash from investing activities
Purchases of property and equipment	(392)	(1,891)
Additions to capitalized software	(2,991)	(2,179)
Purchases of investment securities	(6,537)	(9,385)
Sales of investment securities	0	6,505
Maturities of investment securities	4,445	6,830
Net cash used in investing activities	(5,475)	(120)
Cash from financing activities
Proceeds from stock option exercises	145	80
Tax withholding for net share settlement	(1,207)	0
Principal payments under capital lease obligations	0	(7)
Proceeds from issuance of debt	29	29
Principal payments on debt	(29)	(41)
Net cash (used in) provided by financing activities	(1,062)	61
Net decrease in cash and cash equivalents	(2,730)	(795)
Cash and cash equivalents
Beginning of period	10,699	12,063
End of period	7,969	11,268
Noncash investing and financing activities
Purchases of property and equipment included in accounts payable and accrued expenses	58	700
Additions of capitalized software included in accrued employee expenses	196	554
Stock-based compensation capitalized for software development	$ 138	$ 51

Nature of Business

Nature of Business	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	Nature of Business AppFolio, Inc. (“we” or “AppFolio”) provides industry-specific, cloud-based software solutions for small and medium-sized businesses (“SMBs”) in the property management industry and solo practitioners and small law firms in the legal industry. We refer to solo practitioners and small law firms as SMBs in connection with our legal vertical in this Quarterly Report. Our platform is designed to be the system of record to automate essential business processes and the system of engagement to enhance business interactions between our customers and their clients and vendors. We also offer optional, but often mission-critical, Value+ services, which are seamlessly built into our core solutions.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies The accompanying unaudited Condensed Consolidated Financial Statements were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. Certain information and disclosures normally included in consolidated financial statements prepared in accordance with GAAP have been condensed or omitted. Accordingly, these Condensed Consolidated Financial Statements should be read in conjunction with our audited consolidated financial statements and the related notes included in our Annual Report filed with the SEC on February 27, 2017. The year-end condensed balance sheet was derived from our audited consolidated financial statements. Our unaudited interim Condensed Consolidated Financial Statements have been prepared on a basis consistent with that used to prepare our audited annual consolidated financial statements and include, in the opinion of management, all adjustments, consisting of normal and recurring items, necessary for the fair statement of the Condensed Consolidated Financial Statements. The operating results for the three months ended March 31, 2017 , are not necessarily indicative of the results expected for the full year ending December 31, 2017 . Reclassifications We reclassified certain amounts in our Condensed Consolidated Statements of Cash Flows within the cash from investing activities section in the prior year to conform to the current year's presentation. Changes in Accounting Policies Except as described below under Recently Adopted Accounting Pronouncements , there have been no significant changes in our accounting policies from those disclosed in our annual consolidated financial statements and the related notes included in our Annual Report. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. On an ongoing basis, management evaluates its estimates based on historical data and experience, as well as various other factors that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Net Income (Loss) per Share The net income (loss) per common share was the same for our Class A and Class B common shares because they are entitled to the same liquidation and dividend rights. The following table presents a reconciliation of our weighted average number of Class A and Class B common shares used to compute net income (loss) per share (in thousands): Three Months Ended March 31, 2017 2016 Weighted average shares outstanding 33,747 33,571 Less: Weighted average unvested restricted shares subject to repurchase 41 108 Weighted average common shares outstanding; basic 33,706 33,463 Weighted average common shares outstanding; basic 33,706 33,463 Plus: Weighted average options, RSUs and restricted shares used to compute diluted net income per share 1,059 — Weighted average common shares outstanding; diluted 34,765 33,463 We have excluded contingently issuable performance based options ("PBOs") and performance based restricted stock units ("PSUs") since they are contingent upon the satisfaction of pre-defined performance measures within our weighted average number of shares used to compute diluted net income per share (dilutive common shares) and from the disclosure of anti-dilutive shares. These shares are included in the weighted-average dilutive common shares only if the performance measures are met as of the end of the reporting period. Approximately 784,000 shares are not included in the computation of diluted net income per share for the quarter ended March 31, 2017, as their respective performance measures have not been met. Because we reported a net loss for the three months ended March 31, 2016, all potentially dilutive common shares are anti-dilutive for that period and have been excluded from the calculation of net loss per share. The following table presents the number of anti-dilutive common shares excluded from the calculation of weighted average number of shares used to compute diluted net income (loss) per share as of March 31, 2017 and 2016 (in thousands): March 31, 2017 2016 Options to purchase common stock 4 1,356 Unvested restricted stock awards — 97 Unvested restricted stock units 12 370 Contingent restricted stock units (1) 17 87 Total shares excluded from net income (loss) per common share 33 1,910 (1) The reported shares are based on a fixed price restricted stock unit (“RSU”) commitment for which the number of shares has not been determined at the grant date. The 17,000 and 87,000 shares included in the table above are based on the closing price of our Class A common stock at March 31, 2017 and 2016, respectively, divided by the fixed price commitment to issue shares in the future. Recently Adopted Accounting Pronouncements Under the Jumpstart our Business Startups Act (the “JOBS Act”), we meet the definition of an emerging growth company. We have irrevocably elected to opt out of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act. In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation - Stock Compensation (Topic 781), Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09"), which amends and simplifies the accounting for share-based payment awards in three areas: (1) income tax consequences, (2) classification of awards as either equity or liabilities, and (3) classification on the statement of cash flows. ASU 2016-19 also provides an accounting policy election to account for forfeitures as they occur. We adopted this guidance on January 1, 2017. The impact to the Company’s consolidated financial statements was not material due to the full valuation allowance on our deferred tax assets. We have elected to continue to estimate forfeitures expected to occur to determine the amount of compensation cost to be recognized each period. Recent Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. Subsequently, the FASB has issued the following standards related to ASU 2014-09: ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (“ASU 2016-08”); ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing (“ASU 2016-10”); ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients (“ASU 2016-12”); and ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers (“ASU 2016-20”) . The Company must adopt ASU 2016-08, ASU 2016-10, ASU 2016-12 and ASU 2016-20 with ASU 2014-09 (collectively, the “new revenue standards”). The new revenue standards will be effective on January 1, 2018. Early adoption is permitted as of January 1, 2017. The Company will adopt the new revenue standards on January 1, 2018. The standard permits the use of either a retrospective or cumulative effect transition method. We have not yet selected a transition method and we are currently evaluating the effect that the new revenue standards will have on our consolidated financial statements and related disclosures. Based on our preliminary assessments, we do not expect there will be a material impact to our revenues upon adoption. We are continuing to evaluate the impact to our revenues related to our pending adoption of Topic 606 and our preliminary assessments are subject to change. While we are continuing to assess all potential impacts of the standard, we currently believe the most significant impact relates to recognition of costs related to obtaining customer contracts. Under the Company's current policy election under GAAP, sales commissions and other incremental costs to acquire contracts are expensed as incurred. Under the new revenue standards, such costs will be deferred and recognized over a period of time. We are still evaluating the new revenue standards and assessing the impact this identified difference in accounting treatment may have on our consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"). Under ASU 2016-02, an entity will be required to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. ASU 2016-02 offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing and uncertainty of cash flows arising from leases. For public companies, ASU 2016-02 is effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period, and requires a modified retrospective adoption, with early adoption permitted. We anticipate this standard will have a material impact on our consolidated financial statements. While we are continuing to assess all potential impacts of the standard, we currently believe the most significant impact relates to our accounting and reporting of our operating leases on our balance sheet. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"), which amends the current accounting guidance and requires the measurement of all expected losses based on historical experience, current conditions and reasonable and supportable forecasts. This guidance amends the accounting for credit losses for available-for-sale securities and purchased financial assets with credit deterioration. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods. Early adoption is permitted for any interim or annual period after December 15, 2018. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"), which provides cash flow statement classification guidance for debt prepayment or debt extinguishment costs; 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; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. We have not determined the effect of this guidance on our statement of cash flows. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory (ASU 2016-16), which changes the timing of when certain intercompany transactions are recognized within the provision for income taxes. ASU 2016-16 is effective on January 1, 2018. Early adoption is permitted. We have not determined the effect of this guidance on our financial condition, results of operations, cash flows or disclosures. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (ASU 2016-18), which provides amendments to current guidance to address the classification and presentation of changes in restricted cash in the statement of cash flows. ASU 2014-09 is effective on January 1, 2018 and early adoption is permitted. We are still evaluating the effect of this guidance on our financial statements, although we expect that adoption will change the current presentation of restricted cash on our statement of cash flows as well as require additional disclosures to reconcile cash and cash equivalents per the balance sheet to cash and cash equivalents on the statement of cash flows. In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"), which eliminates Step 2 from the goodwill impairment test. The annual, or interim, goodwill impairment test is performed by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. In addition, income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit should be considered when measuring the goodwill impairment loss, if applicable. ASU 2017-04 also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU 2017-04 is effective for public entities for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on dates after January 1, 2017. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures. In March 2017, the FASB issued ASU No. 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities (“ASU 2017-08”) . ASU 2017-08 shortens the amortization period for certain callable debt securities held at a premium. Specifically, ASU 2017-08 requires the premium to be amortized to the earliest call date. ASU 2017-08 does not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. For public companies, ASU 2017-08 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures since our current accounting policy is in accordance with ASU 2017-08.

Investment Securities and Fair

Investment Securities and Fair Value Measurements	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Investment Securities and Fair Value Measurements	Investment Securities and Fair Value Measurements Investment Securities Investment securities classified as available-for-sale consisted of the following at March 31, 2017 and December 31, 2016 (in thousands): March 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Corporate bonds $ 30,804 $ 14 $ (37 ) $ 30,781 Agency securities 9,286 — (16 ) 9,270 Certificates of deposit 4,227 11 (1 ) 4,237 Total available-for-sale investment securities $ 44,317 $ 25 $ (54 ) $ 44,288 December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Corporate bonds $ 30,492 $ 9 $ (56 ) $ 30,445 Agency securities 6,248 — (20 ) 6,228 Certificates of deposit 5,472 16 — 5,488 Total available-for-sale investment securities $ 42,212 $ 25 $ (76 ) $ 42,161 We had certain investment securities in an unrealized loss position at March 31, 2017 and December 31, 2016 , and none of these securities have been in a continuous unrealized loss position for more than 12 months. These unrealized loss positions are considered temporary and there were no impairments considered "other-than-temporary" as it is more likely than not we will hold the securities until maturity or a recovery of the cost basis. At March 31, 2017 and December 31, 2016 , the contractual maturities of our investments did not exceed 36 months . The fair values of available-for-sale investments, by remaining contractual maturity, are as follows (in thousands): March 31, 2017 December 31, 2016 Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Due in 1 year or less $ 19,367 $ 19,355 $ 15,475 $ 15,473 Due after 1 year through 3 years 24,950 24,933 26,737 26,688 Total available-for-sale investment securities $ 44,317 $ 44,288 $ 42,212 $ 42,161 During the three months ended March 31, 2017 and 2016 , we had sales and maturities (which includes calls) of investment securities, as follows (in thousands): Three Months Ended March 31, 2017 Gross Realized Gains Gross Realized Losses Gross Proceeds from Sales Gross Proceeds from Maturities Corporate bonds $ — $ — $ — $ 3,200 Certificates of deposit — — — 1,245 $ — $ — $ — $ 4,445 Three Months Ended March 31, 2016 Gross Realized Gains Gross Realized Losses Gross Proceeds from Sales Gross Proceeds from Maturities Agency securities $ — $ — $ 1,500 $ 3,000 Corporate bonds — — 3,005 — Treasury bills — — 2,000 3,830 $ — $ — $ 6,505 $ 6,830 For the three months ended March 31, 2017 and 2016 , we received interest income net of the amortization and accretion of the premium and discount of $0.1 million . Fair Value Measurements Recurring Fair Value Measurements Financial assets and financial liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The following tables summarize our financial assets and liabilities measured at fair value on a recurring basis as of March 31, 2017 and December 31, 2016 , by level within the fair value hierarchy (in thousands): March 31, 2017 Level 1 Level 2 Level 3 Total Fair Cash equivalents: Money market funds $ 2,909 $ — $ — $ 2,909 Available-for-sale investment securities: Corporate bonds — 30,781 — 30,781 Agency securities — 9,270 — 9,270 Certificates of deposit 4,237 — — 4,237 Total Assets $ 7,146 $ 40,051 $ — $ 47,197 December 31, 2016 Level 1 Level 2 Level 3 Total Fair Cash equivalents: Money market funds $ 4,849 $ — $ — $ 4,849 Available-for-sale - investment securities: Corporate bonds — 30,445 — 30,445 Agency securities — 6,228 — 6,228 Certificates of deposit 5,488 — — 5,488 Total Assets $ 10,337 $ 36,673 $ — $ 47,010 The carrying amounts of cash equivalents, restricted cash, accounts receivable, accounts payable and accrued liabilities approximate fair value because of the short maturity of these items. There were no changes to our valuation techniques used to measure asset and liability fair values on a recurring basis during the three months ended March 31, 2017 . The valuation techniques for the items in the table above are as follows: Cash and Cash Equivalents As of March 31, 2017 and December 31, 2016 , cash and cash equivalents include cash invested in money market funds. Market prices are based on market prices for identical assets. Available-for-Sale - Investment Securities The fair value of our investment securities is based on pricing determined using inputs other than quoted prices that are observable either directly or indirectly such as yield curve, volatility factors, credit spreads, default rates, loss severity, current market and contractual prices for the underlying instruments or debt, broker and dealer quotes, as well as other relevant economic measures. Non-Recurring Fair Value Measurements Certain assets, including goodwill, intangible assets and our note receivable with SecureDocs are also subject to measurement at fair value on a non-recurring basis using Level 3 measurement when they are deemed to be impaired as a result of an impairment review. For the three months ended March 31, 2017 and 2016 , no impairments were identified on those assets required to be measured at fair value on a non-recurring basis.

Internal-Use Software Developme

Internal-Use Software Development Costs	3 Months Ended
	Mar. 31, 2017
Research and Development [Abstract]
Internal-Use Software Development Costs	Internal-Use Software Development Costs Internal-use software development costs were as follows (in thousands): March 31, December 31, Internal use software development costs, gross $ 36,411 $ 33,545 Less: Accumulated amortization (20,048 ) (18,006 ) Internal use software development costs, net $ 16,363 $ 15,539 Capitalized software development costs were $2.9 million and $2.4 million for the three months ended March 31, 2017 and 2016 . Amortization expense with respect to software development costs totaled $2.0 million and $1.3 million for the three months ended March 31, 2017 and 2016 . Future amortization expense with respect to capitalized software development costs as of March 31, 2017 , is estimated as follows (in thousands): Years Ending December 31, 2017 $ 6,211 2018 6,601 2019 3,322 2020 229 Total amortization expense $ 16,363

Intangible Assets

Intangible Assets	3 Months Ended
	Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets Intangible assets consisted of the following as of March 31, 2017 and December 31, 2016 : March 31, 2017 Gross Carrying Accumulated Net Carrying Customer relationships $ 790 $ (431 ) $ 359 Technology 4,811 (3,271 ) 1,540 Trademarks 930 (447 ) 483 Partner relationships 680 (453 ) 227 Non-compete agreements 40 (27 ) 13 Domain names 273 (250 ) 23 Patents 284 (173 ) 111 $ 7,808 $ (5,052 ) $ 2,756 December 31, 2016 Gross Carrying Value Accumulated Amortization Net Carrying Value Customer relationships $ 790 $ (392 ) $ 398 Technology 4,811 (3,070 ) 1,741 Trademarks 930 (416 ) 514 Partner relationships 680 (397 ) 283 Non-compete agreements 40 (23 ) 17 Domain names 273 (241 ) 32 Patents 284 (164 ) 120 $ 7,808 $ (4,703 ) $ 3,105 Amortization expense for the three months ended March 31, 2017 and 2016 , was $0.3 million and $0.4 million , respectively. As of March 31, 2017 , estimated future amortization of intangible assets was as follows (in thousands): Years Ending December 31, 2017 $ 1,031 2018 928 2019 352 2020 259 2021 124 Thereafter 62 Total amortization expense $ 2,756

Commitment and Contingencies

Commitment and Contingencies	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Lease Obligations As of March 31, 2017 , we had operating lease obligations of approximately $10.8 million through 2022. We recorded rent expense of $0.5 million for the three months ended March 31, 2017 and 2016 . In February 2017, we signed a lease amendment for 50 Castilian Drive in Santa Barbara, California, our corporate headquarters. This amendment extends the term from February 2018 to December 2021. The total commitment under this lease extension is $3.1 million . All other terms and conditions from the original lease and previous amendments remain the same. Line of Credit We are party to a Credit Agreement with Wells Fargo, as administrative agent, and the lenders that are parties thereto (as amended, the “Credit Agreement”). Under the terms of the Credit Agreement, the lenders made available to us a $25.0 million revolving line of credit (the “Revolving Facility”). Borrowings under the Revolving Facility are subject to the satisfaction of customary conditions. The Revolving Facility matures on October 9, 2020; however, we can make payments on, and cancel in full, the Revolving Facility at any time without premium or penalty. As of March 31, 2017 and December 31, 2016 , there was no outstanding balance under the Credit Agreement and we are in compliance with the financial covenants under the Revolving Facility. Insurance We have a wholly owned subsidiary, Terra Mar Insurance Company, Inc. (“Terra Mar”), which was established to provide our customers with the option to purchase tenant liability insurance. If our customers choose to use our insurance services, they are issued an insurance policy underwritten by our third-party service provider. The policy has a limit of $100,000 per incident for each insured residence. We have entered into a reinsurance agreement with our third-party service provider and, as a result, we assume a 100% quota share of the tenant liability insurance provided to our customers through our third-party service provider. Included in cost of revenue we accrue for reported claims and an estimate of losses incurred but not reported by our property manager customers, as we bear the risk related to claims. Our liability for reported claims and incurred but not reported claims as of March 31, 2017 and December 31, 2016 was $0.4 million and $0.3 million , respectively, and is included in Other current liabilities on the Condensed Consolidated Balance Sheets. Included in Other assets as of March 31, 2017 and December 31, 2016 , are $1.0 million and $1.2 million , respectively, of deposits held with a third party related to requirements to maintain collateral for our insurance services. Litigation From time to time, we may become subject to certain legal proceedings, including without limitation claims and/or litigation matters, arising in the ordinary course of business. We are not currently a party to any such legal proceedings, nor are we aware of any pending or threatened litigation, that would have a material adverse effect on our business, operating results, cash flows or financial condition should such proceedings be resolved unfavorably. Indemnification In the ordinary course of business, we may provide indemnification of varying scope and terms to customers, investors, directors and officers with respect to certain matters, including, but not limited to, losses arising out of our breach of any applicable agreements, services to be provided by us, or intellectual property infringement claims made by third parties. These indemnification provisions may survive termination of the underlying agreement and the maximum potential amount of future payments we could be required to make under these indemnification provisions may not be subject to maximum loss clauses. The maximum potential amount of future payments we could be required to make under these indemnification provisions is indeterminable. We have never paid a material claim, nor have we been sued in connection with these indemnification arrangements. As of March 31, 2017 and December 31, 2016 , we had not accrued a liability for these indemnification arrangements because we have determined that the likelihood of incurring a payment obligation, if any, in connection with these indemnification arrangements is not probable or reasonably possible and the amount or range of amounts of any such liability is not reasonably estimable.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation Stock Options A summary of our stock option activity for the three months ended March 31, 2017 , follows (number of shares in thousands): Number of Shares Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Life in Years Options outstanding as of December 31, 2016 1,718 $ 8.75 8.2 Options granted 132 23.80 Options exercised (41 ) 3.53 Options cancelled/forfeited (14 ) 9.54 Options outstanding as of March 31, 2017 1,795 $ 9.97 8.1 During the three months ended March 31, 2017 , we granted PSOs to purchase up to 132,000 shares of our Class A common stock. The PSOs have a weighted average exercise price of $23.80 per share. Vesting of the PSOs is based on achievement of a pre-established free cash flow performance metric for the year ended December 31, 2019, and continued employment throughout the performance period. The number of PSOs granted, as included in the above table, assumes achievement of the performance metric at the maximum level, which is 165% of the targeted performance metric. Thus, for performance at 100% of the targeted metric, approximately 61% of the PSOs would vest. For performance at 80% of the targeted metric, approximately 48% of the PSOs would vest. For performance below 80% of the 2019 targeted metric, no PSOs would vest, all previously recognized compensation expense for PSOs would be reversed, and no compensation expense would be recognized. Included in the options outstanding as of March 31, 2017 , are 500,000 PSOs granted in 2016, which are based on achievement of a pre-established free cash flow performance metric for the years ended December 31, 2017 and 2018. The number of PSOs granted in 2016 related to the performance metrics for the years ended December 31, 2016, 2017 and 2018, assumed achievement of the performance metric at the maximum level, which is 150% of the targeted performance metric. Thus, for performance at 100% of the targeted metric, approximately 67% of the PSOs would vest. For performance at 80% of the targeted metric, approximately 33% of the PSOs would vest. For performance below 80% of the 2018 targeted metric, no PSOs would vest, all previously recognized compensation expense for PSOs would be reversed, and no compensation expense would be recognized. For performance below 50% of the 2017 targeted metric, no PSOs would vest, all previously recognized compensation expense for PSOs would be reversed, and no compensation expense would be recognized. During the three months ended March 31, 2017 , 247,000 of the PSOs vested based on the achievement of 148% of the pre-established free cash flow performance metric for the year ended December 31, 2016, and 3,000 shares were cancelled as a result of the PSOs being granted at 150% of the target metric. During the year ended December 31, 2016, $1.0 million of expense was recognized related to the PSOs that vested during the three months ended March 31, 2017 . We recognize expense for the PSOs based on the grant date fair value of the PSOs that we determine are probable of vesting. Adjustments to compensation expense are made each period based on changes in our estimate of the number of PSOs that are probable of vesting. Our stock-based compensation expense for stock options, including the PSOs for the three months ended March 31, 2017 and 2016 , was $537,000 and $287,000 , respectively. The fair value of stock options granted is estimated on the date of grant using the Black-Scholes option-pricing model. The following table summarizes information relating to our stock options granted during the three months ended March 31, 2017 and 2016 : Three Months Ended 2017 2016 Stock options granted (in thousands) 132 250 Weighted average exercise price per share $ 23.80 $ 11.70 Weighted average grant-date fair value per share $ 9.29 $ 4.15 Weighted average Black-Scholes model assumptions: Risk-free interest rate 2.04 % 1.28 % Expected term (in years) 6.4 5.4 Expected volatility 35 % 37 % Expected dividend yield — — As of March 31, 2017 , the total estimated remaining stock-based compensation expense for unvested stock options, including the PSOs, was $3.4 million , which is expected to be recognized over a weighted average period of 2.0 years. Restricted Stock Units A summary of activity in connection with our RSUs for the three months ended March 31, 2017 , follows (number of shares in thousands): Number of Shares Weighted- Average Grant Date Fair Value per Share Unvested as of December 31, 2016 496 $ 13.34 Granted 260 24.23 Vested (111 ) 12.07 Forfeited (12 ) 12.82 Unvested as of March 31, 2017 633 $ 18.05 During the three months ended March 31, 2017 , we granted 151,000 RSUs that vest annually over four years and 96,000 PSUs that vest based upon achievement of a pre-established free cash flow performance metric for the year ended December 31, 2019, and continued employment throughout the performance period. The number of PSUs granted, as included in the above table, assumes achievement of the performance metric at 100% of the targeted performance metric. The actual number of shares to be issued at the end of the performance period will range from 0% to 165% of the initial target awards. For performance at 150% of the targeted metric in 2019, up to 165% of the PSUs would vest. For performance below 80% of the targeted metric in 2019, no PSUs would vest and no compensation expense would be recognized, and all previously recognized compensation expense for PSUs would be reversed. During the three months ended March 31, 2017 , 41,000 of the PSUs vested related to the achievement of 148% of the pre-established free cash flow performance metric for the year ended December 31, 2016, and an additional 13,000 shares were granted and vested as a result of the attainment of the 2016 performance metric as approved by our Board of Directors. During the year ended December 31, 2016, $479,000 of expense was recognized related to the PSUs vested during the three months ended March 31, 2017 . Included in the unvested RSUs as of March 31, 2017 , are 56,000 PSUs granted in 2016, which are based on achievement of a pre-established free cash flow performance metric for the years ended December 31, 2017 and 2018, and continued employment throughout the performance period. The number of PSUs granted in 2016 related to the performance metrics for the years ended December 31, 2017 and 2018, assumes achievement of the performance metric at 100% of the targeted performance metric. The actual number of shares to be issued at the end of the performance period will range from 0% to 150% of the initial target awards. For performance at 150% of the targeted metric, 150% of the PSUs would vest. For performance below 80% of the targeted metric for 2018, no PSUs would vest and no compensation expense would be recognized, and all previously recognized compensation expense for PSUs would be reversed. For performance below 50% of the targeted metric for 2017, no PSUs would vest and no compensation expense would be recognized and all previously recognized compensation expense for PSUs would be reversed. We recognize expense for the PSUs based on the grant date fair value of the PSUs that we determine are probable of vesting. Adjustments to compensation expense are made each period based on changes in our estimate of the number of PSUs that are probable of vesting. Our stock-based compensation expense for the RSUs and PSUs for the three months ended March 31, 2017 and 2016 , was $597,000 and $111,000 , respectively. As of March 31, 2017 , the total remaining estimated stock-based compensation expense for the RSUs and PSUs was $9.9 million , which is expected to be recognized over a weighted average period of 3.0 years. Restricted Stock Awards A summary of activity in connection with our restricted stock awards for the three months ended March 31, 2017 , follows (number of shares in thousands): Number of Weighted- Unvested as of December 31, 2016 46 $ 8.55 Granted — — Vested (9 ) 2.43 Forfeited — — Unvested as of March 31, 2017 37 $ 10.13 We have the right to repurchase any unvested restricted stock awards. Restricted stock awards vest over a four -year period for employees and a one -year period for non-employee directors. We recognized stock-based compensation expense of $101,000 and $115,000 for the three months ended March 31, 2017 and 2016 , respectively. As of March 31, 2017 , the total remaining stock-based compensation expense for unvested restricted stock awards with a repurchasing right was $141,000 which is expected to be recognized over a weighted average period of 1.0 year .

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Our effective tax rate differs from the U.S. Federal statutory rate of 34% primarily because our losses have been offset by a valuation allowance due to uncertainty as to the realization of those losses. For the three months ended March 31, 2017 , we recorded income tax expense of $11,000 on pre-tax income of $0.7 million for an effective tax rate of 1.6% . The income tax expense is based on our payments of state minimum taxes and the amortization of tax deductible goodwill that is not an available source of income to realize the deferred tax asset. For the three months ended March 31, 2016 , we recorded income tax expense of $24,000 on pre-tax losses of $3.6 million for an effective tax rate of (0.67%) . The income tax expense is based on our payments of state minimum taxes and the amortization of tax deductible goodwill that is not an available source of income to realize the deferred tax asset.

Revenue and Other Information

Revenue and Other Information	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Revenue and Other Information	Revenue and Other Information The following table presents our revenue categories for the three months ended March 31, 2017 and 2016 (in thousands): Three Months Ended 2017 2016 Core solutions $ 13,106 $ 9,763 Value+ services 17,764 12,255 Other 1,256 1,193 Total revenues $ 32,126 $ 23,211 Core solutions revenue includes our subscription fees which are designed to scale to the size of our customers’ businesses. We recognize subscription revenue ratably over the terms of the subscription agreements, which typically range from one month to one year. Revenue from subscription services is impacted by a number of factors, including the change in the number and type of our customers, the size and needs of our customers’ businesses and our customer renewal rates. Value+ services revenue includes revenue from subscriptions or usage-based fees. Subscription Value+ services include website hosting services and contact center services. Usage-based Value+ services include fees for electronic payment processing, applicant screening services, our tenant liability insurance program, collections, and online vacancy advertising services. Revenue from Value+ services is impacted by a number of factors, including the number of new and existing customers that adopt and utilize our Value+ service, the size and needs of our customers and our customer renewal rates. Other revenue includes one-time services related to on-boarding our core solutions, website design services and online vacancy advertising services offered to legacy RentLinx customers. Our revenue is generated primarily from U.S. customers. All of our property and equipment is located in the U.S.

Summary of Significant Accoun17

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Significant Accounting Policies The accompanying unaudited Condensed Consolidated Financial Statements were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. Certain information and disclosures normally included in consolidated financial statements prepared in accordance with GAAP have been condensed or omitted. Accordingly, these Condensed Consolidated Financial Statements should be read in conjunction with our audited consolidated financial statements and the related notes included in our Annual Report filed with the SEC on February 27, 2017. The year-end condensed balance sheet was derived from our audited consolidated financial statements. Our unaudited interim Condensed Consolidated Financial Statements have been prepared on a basis consistent with that used to prepare our audited annual consolidated financial statements and include, in the opinion of management, all adjustments, consisting of normal and recurring items, necessary for the fair statement of the Condensed Consolidated Financial Statements. The operating results for the three months ended March 31, 2017 , are not necessarily indicative of the results expected for the full year ending December 31, 2017 .
Reclassifications	Reclassifications We reclassified certain amounts in our Condensed Consolidated Statements of Cash Flows within the cash from investing activities section in the prior year to conform to the current year's presentation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. On an ongoing basis, management evaluates its estimates based on historical data and experience, as well as various other factors that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources.
Recently Adopted and Not Yet Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements Under the Jumpstart our Business Startups Act (the “JOBS Act”), we meet the definition of an emerging growth company. We have irrevocably elected to opt out of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act. In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation - Stock Compensation (Topic 781), Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09"), which amends and simplifies the accounting for share-based payment awards in three areas: (1) income tax consequences, (2) classification of awards as either equity or liabilities, and (3) classification on the statement of cash flows. ASU 2016-19 also provides an accounting policy election to account for forfeitures as they occur. We adopted this guidance on January 1, 2017. The impact to the Company’s consolidated financial statements was not material due to the full valuation allowance on our deferred tax assets. We have elected to continue to estimate forfeitures expected to occur to determine the amount of compensation cost to be recognized each period. Recent Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. Subsequently, the FASB has issued the following standards related to ASU 2014-09: ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (“ASU 2016-08”); ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing (“ASU 2016-10”); ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients (“ASU 2016-12”); and ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers (“ASU 2016-20”) . The Company must adopt ASU 2016-08, ASU 2016-10, ASU 2016-12 and ASU 2016-20 with ASU 2014-09 (collectively, the “new revenue standards”). The new revenue standards will be effective on January 1, 2018. Early adoption is permitted as of January 1, 2017. The Company will adopt the new revenue standards on January 1, 2018. The standard permits the use of either a retrospective or cumulative effect transition method. We have not yet selected a transition method and we are currently evaluating the effect that the new revenue standards will have on our consolidated financial statements and related disclosures. Based on our preliminary assessments, we do not expect there will be a material impact to our revenues upon adoption. We are continuing to evaluate the impact to our revenues related to our pending adoption of Topic 606 and our preliminary assessments are subject to change. While we are continuing to assess all potential impacts of the standard, we currently believe the most significant impact relates to recognition of costs related to obtaining customer contracts. Under the Company's current policy election under GAAP, sales commissions and other incremental costs to acquire contracts are expensed as incurred. Under the new revenue standards, such costs will be deferred and recognized over a period of time. We are still evaluating the new revenue standards and assessing the impact this identified difference in accounting treatment may have on our consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"). Under ASU 2016-02, an entity will be required to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. ASU 2016-02 offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing and uncertainty of cash flows arising from leases. For public companies, ASU 2016-02 is effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period, and requires a modified retrospective adoption, with early adoption permitted. We anticipate this standard will have a material impact on our consolidated financial statements. While we are continuing to assess all potential impacts of the standard, we currently believe the most significant impact relates to our accounting and reporting of our operating leases on our balance sheet. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"), which amends the current accounting guidance and requires the measurement of all expected losses based on historical experience, current conditions and reasonable and supportable forecasts. This guidance amends the accounting for credit losses for available-for-sale securities and purchased financial assets with credit deterioration. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods. Early adoption is permitted for any interim or annual period after December 15, 2018. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"), which provides cash flow statement classification guidance for debt prepayment or debt extinguishment costs; 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; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. We have not determined the effect of this guidance on our statement of cash flows. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory (ASU 2016-16), which changes the timing of when certain intercompany transactions are recognized within the provision for income taxes. ASU 2016-16 is effective on January 1, 2018. Early adoption is permitted. We have not determined the effect of this guidance on our financial condition, results of operations, cash flows or disclosures. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (ASU 2016-18), which provides amendments to current guidance to address the classification and presentation of changes in restricted cash in the statement of cash flows. ASU 2014-09 is effective on January 1, 2018 and early adoption is permitted. We are still evaluating the effect of this guidance on our financial statements, although we expect that adoption will change the current presentation of restricted cash on our statement of cash flows as well as require additional disclosures to reconcile cash and cash equivalents per the balance sheet to cash and cash equivalents on the statement of cash flows. In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"), which eliminates Step 2 from the goodwill impairment test. The annual, or interim, goodwill impairment test is performed by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. In addition, income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit should be considered when measuring the goodwill impairment loss, if applicable. ASU 2017-04 also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU 2017-04 is effective for public entities for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on dates after January 1, 2017. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures. In March 2017, the FASB issued ASU No. 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities (“ASU 2017-08”) . ASU 2017-08 shortens the amortization period for certain callable debt securities held at a premium. Specifically, ASU 2017-08 requires the premium to be amortized to the earliest call date. ASU 2017-08 does not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. For public companies, ASU 2017-08 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures since our current accounting policy is in accordance with ASU 2017-08.

Summary of Significant Accoun18

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Schedule of Weighted Average Number of Shares	The following table presents a reconciliation of our weighted average number of Class A and Class B common shares used to compute net income (loss) per share (in thousands): Three Months Ended March 31, 2017 2016 Weighted average shares outstanding 33,747 33,571 Less: Weighted average unvested restricted shares subject to repurchase 41 108 Weighted average common shares outstanding; basic 33,706 33,463 Weighted average common shares outstanding; basic 33,706 33,463 Plus: Weighted average options, RSUs and restricted shares used to compute diluted net income per share 1,059 — Weighted average common shares outstanding; diluted 34,765 33,463
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following table presents the number of anti-dilutive common shares excluded from the calculation of weighted average number of shares used to compute diluted net income (loss) per share as of March 31, 2017 and 2016 (in thousands): March 31, 2017 2016 Options to purchase common stock 4 1,356 Unvested restricted stock awards — 97 Unvested restricted stock units 12 370 Contingent restricted stock units (1) 17 87 Total shares excluded from net income (loss) per common share 33 1,910 (1) The reported shares are based on a fixed price restricted stock unit (“RSU”) commitment for which the number of shares has not been determined at the grant date. The 17,000 and 87,000 shares included in the table above are based on the closing price of our Class A common stock at March 31, 2017 and 2016, respectively, divided by the fixed price commitment to issue shares in the future.

Investment Securities and Fai19

Investment Securities and Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of Available-for-sale Securities	Investment securities classified as available-for-sale consisted of the following at March 31, 2017 and December 31, 2016 (in thousands): March 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Corporate bonds $ 30,804 $ 14 $ (37 ) $ 30,781 Agency securities 9,286 — (16 ) 9,270 Certificates of deposit 4,227 11 (1 ) 4,237 Total available-for-sale investment securities $ 44,317 $ 25 $ (54 ) $ 44,288 December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Corporate bonds $ 30,492 $ 9 $ (56 ) $ 30,445 Agency securities 6,248 — (20 ) 6,228 Certificates of deposit 5,472 16 — 5,488 Total available-for-sale investment securities $ 42,212 $ 25 $ (76 ) $ 42,161
Available-for-sale Investments, by Remaining Contract Maturity	At March 31, 2017 and December 31, 2016 , the contractual maturities of our investments did not exceed 36 months . The fair values of available-for-sale investments, by remaining contractual maturity, are as follows (in thousands): March 31, 2017 December 31, 2016 Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Due in 1 year or less $ 19,367 $ 19,355 $ 15,475 $ 15,473 Due after 1 year through 3 years 24,950 24,933 26,737 26,688 Total available-for-sale investment securities $ 44,317 $ 44,288 $ 42,212 $ 42,161
Schedule of Sales, Calls, and Maturities	During the three months ended March 31, 2017 and 2016 , we had sales and maturities (which includes calls) of investment securities, as follows (in thousands): Three Months Ended March 31, 2017 Gross Realized Gains Gross Realized Losses Gross Proceeds from Sales Gross Proceeds from Maturities Corporate bonds $ — $ — $ — $ 3,200 Certificates of deposit — — — 1,245 $ — $ — $ — $ 4,445 Three Months Ended March 31, 2016 Gross Realized Gains Gross Realized Losses Gross Proceeds from Sales Gross Proceeds from Maturities Agency securities $ — $ — $ 1,500 $ 3,000 Corporate bonds — — 3,005 — Treasury bills — — 2,000 3,830 $ — $ — $ 6,505 $ 6,830
Fair Value, Assets Measured on Recurring Basis	The following tables summarize our financial assets and liabilities measured at fair value on a recurring basis as of March 31, 2017 and December 31, 2016 , by level within the fair value hierarchy (in thousands): March 31, 2017 Level 1 Level 2 Level 3 Total Fair Cash equivalents: Money market funds $ 2,909 $ — $ — $ 2,909 Available-for-sale investment securities: Corporate bonds — 30,781 — 30,781 Agency securities — 9,270 — 9,270 Certificates of deposit 4,237 — — 4,237 Total Assets $ 7,146 $ 40,051 $ — $ 47,197 December 31, 2016 Level 1 Level 2 Level 3 Total Fair Cash equivalents: Money market funds $ 4,849 $ — $ — $ 4,849 Available-for-sale - investment securities: Corporate bonds — 30,445 — 30,445 Agency securities — 6,228 — 6,228 Certificates of deposit 5,488 — — 5,488 Total Assets $ 10,337 $ 36,673 $ — $ 47,010

Internal-Use Software Develop20

Internal-Use Software Development Costs (Tables)	3 Months Ended
	Mar. 31, 2017
Research and Development [Abstract]
Schedule of Capitalized Computer Software	Internal-use software development costs were as follows (in thousands): March 31, December 31, Internal use software development costs, gross $ 36,411 $ 33,545 Less: Accumulated amortization (20,048 ) (18,006 ) Internal use software development costs, net $ 16,363 $ 15,539
Schedule of Capitalized Computer Software Future Amortization Expense	Future amortization expense with respect to capitalized software development costs as of March 31, 2017 , is estimated as follows (in thousands): Years Ending December 31, 2017 $ 6,211 2018 6,601 2019 3,322 2020 229 Total amortization expense $ 16,363

Intangible Assets (Tables)

Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	Intangible assets consisted of the following as of March 31, 2017 and December 31, 2016 : March 31, 2017 Gross Carrying Accumulated Net Carrying Customer relationships $ 790 $ (431 ) $ 359 Technology 4,811 (3,271 ) 1,540 Trademarks 930 (447 ) 483 Partner relationships 680 (453 ) 227 Non-compete agreements 40 (27 ) 13 Domain names 273 (250 ) 23 Patents 284 (173 ) 111 $ 7,808 $ (5,052 ) $ 2,756 December 31, 2016 Gross Carrying Value Accumulated Amortization Net Carrying Value Customer relationships $ 790 $ (392 ) $ 398 Technology 4,811 (3,070 ) 1,741 Trademarks 930 (416 ) 514 Partner relationships 680 (397 ) 283 Non-compete agreements 40 (23 ) 17 Domain names 273 (241 ) 32 Patents 284 (164 ) 120 $ 7,808 $ (4,703 ) $ 3,105
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	As of March 31, 2017 , estimated future amortization of intangible assets was as follows (in thousands): Years Ending December 31, 2017 $ 1,031 2018 928 2019 352 2020 259 2021 124 Thereafter 62 Total amortization expense $ 2,756

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Stock Option Activity	A summary of our stock option activity for the three months ended March 31, 2017 , follows (number of shares in thousands): Number of Shares Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Life in Years Options outstanding as of December 31, 2016 1,718 $ 8.75 8.2 Options granted 132 23.80 Options exercised (41 ) 3.53 Options cancelled/forfeited (14 ) 9.54 Options outstanding as of March 31, 2017 1,795 $ 9.97 8.1
Schedule of Valuation Assumptions, Stock Options	The following table summarizes information relating to our stock options granted during the three months ended March 31, 2017 and 2016 : Three Months Ended 2017 2016 Stock options granted (in thousands) 132 250 Weighted average exercise price per share $ 23.80 $ 11.70 Weighted average grant-date fair value per share $ 9.29 $ 4.15 Weighted average Black-Scholes model assumptions: Risk-free interest rate 2.04 % 1.28 % Expected term (in years) 6.4 5.4 Expected volatility 35 % 37 % Expected dividend yield — —
Schedule of Restricted Stock Units Activity	A summary of activity in connection with our RSUs for the three months ended March 31, 2017 , follows (number of shares in thousands): Number of Shares Weighted- Average Grant Date Fair Value per Share Unvested as of December 31, 2016 496 $ 13.34 Granted 260 24.23 Vested (111 ) 12.07 Forfeited (12 ) 12.82 Unvested as of March 31, 2017 633 $ 18.05
Schedule of Restricted Stock Awards Activity	A summary of activity in connection with our restricted stock awards for the three months ended March 31, 2017 , follows (number of shares in thousands): Number of Weighted- Unvested as of December 31, 2016 46 $ 8.55 Granted — — Vested (9 ) 2.43 Forfeited — — Unvested as of March 31, 2017 37 $ 10.13

Revenue and Other Information (

Revenue and Other Information (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Schedule of Product Information by Revenue Categories	The following table presents our revenue categories for the three months ended March 31, 2017 and 2016 (in thousands): Three Months Ended 2017 2016 Core solutions $ 13,106 $ 9,763 Value+ services 17,764 12,255 Other 1,256 1,193 Total revenues $ 32,126 $ 23,211

Summary of Significant Accoun24

Summary of Significant Accounting Policies - Net (Income) Loss per Share Schedule of Weighted Average Number of Shares (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average shares outstanding (in shares)	33,747,000	33,571,000
Less: Weighted average unvested restricted shares subject to repurchase (in shares)	41,000	108,000
Weighted average common shares outstanding; basic (in shares)	33,706,000	33,463,000
Weighted average common shares outstanding; basic (in shares)	33,706,000	33,463,000
Plus: Weighted average options, RSUs and restricted shares used to compute diluted net income per share (in shares)	1,059,000	0
Weighted average number of shares used to compute diluted net income (loss) per share (in shares)	34,765,000	33,463,000
Shares excluded from net loss per share attributable to common stockholders (in shares)	33,000	1,910,000
PSUs and PBOs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from net loss per share attributable to common stockholders (in shares)	784,000

Summary of Significant Accoun25

Summary of Significant Accounting Policies - Net (Income) Loss Schedule of Antidilutive Securities (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from net income (loss) per common share (in shares)	33,000	1,910,000
Options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from net income (loss) per common share (in shares)	4,000	1,356,000
Unvested restricted stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from net income (loss) per common share (in shares)	0	97,000
Unvested restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from net income (loss) per common share (in shares)	12,000	370,000
Contingent restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from net income (loss) per common share (in shares)	17,000	87,000
Fixed Price Restricted Stock Unit
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from net income (loss) per common share (in shares)	17,000	87,000

Investment Securities and Fai26

Investment Securities and Fair Value Measurements - Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Amortized Cost	$ 44,317	$ 42,212
Gross Unrealized Gains	25	25
Gross Unrealized Losses	(54)	(76)
Estimated Fair Value	$ 44,288	$ 42,161
Maximum contractual maturity period	36 months	36 months
Amortized Cost
Due in 1 year or less	$ 19,367	$ 15,475
Due after 1 year through 3 years	24,950	26,737
Total available-for-sale investment securities	44,317	42,212
Estimated Fair Value
Due in 1 year or less	19,355	15,473
Due after 1 year through 3 years	24,933	26,688
Total available-for-sale investment securities	44,288	42,161
Corporate bonds
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Amortized Cost	30,804	30,492
Gross Unrealized Gains	14	9
Gross Unrealized Losses	(37)	(56)
Estimated Fair Value	30,781	30,445
Agency securities
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Amortized Cost	9,286	6,248
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(16)	(20)
Estimated Fair Value	9,270	6,228
Certificates of deposit
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Amortized Cost	4,227	5,472
Gross Unrealized Gains	11	16
Gross Unrealized Losses	(1)	0
Estimated Fair Value	$ 4,237	$ 5,488

Investment Securities and Fai27

Investment Securities and Fair Value Measurements - Sales, Calls and Maturities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Gross Realized Gains	$ 0	$ 0
Gross Realized Losses	0	0
Gross Proceeds from Sales	0	6,505
Gross Proceeds from Maturities	4,445	6,830
Accretion (amortization) of discounts and premiums	100	100
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Gross Realized Gains	0	0
Gross Realized Losses	0	0
Gross Proceeds from Sales	0	3,005
Gross Proceeds from Maturities	3,200	0
Certificates of deposit
Schedule of Available-for-sale Securities [Line Items]
Gross Realized Gains	0
Gross Realized Losses	0
Gross Proceeds from Sales	0
Gross Proceeds from Maturities	$ 1,245
Agency securities
Schedule of Available-for-sale Securities [Line Items]
Gross Realized Gains		0
Gross Realized Losses		0
Gross Proceeds from Sales		1,500
Gross Proceeds from Maturities		3,000
Treasury bills
Schedule of Available-for-sale Securities [Line Items]
Gross Realized Gains		0
Gross Realized Losses		0
Gross Proceeds from Sales		2,000
Gross Proceeds from Maturities		$ 3,830

Investment Securities and Fai28

Investment Securities and Fair Value Measurements - Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	$ 44,288	$ 42,161
Fair value measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	47,197	47,010
Fair value measurements | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	7,146	10,337
Fair value measurements | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	40,051	36,673
Fair value measurements | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	0	0
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	30,781	30,445
Corporate bonds | Fair value measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	30,781	30,445
Corporate bonds | Fair value measurements | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	0	0
Corporate bonds | Fair value measurements | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	30,781	30,445
Corporate bonds | Fair value measurements | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	0	0
Agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	9,270	6,228
Agency securities | Fair value measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	9,270	6,228
Agency securities | Fair value measurements | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	0	0
Agency securities | Fair value measurements | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	9,270	6,228
Agency securities | Fair value measurements | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	0	0
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	4,237	5,488
Certificates of deposit | Fair value measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	4,237	5,488
Certificates of deposit | Fair value measurements | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	4,237	5,488
Certificates of deposit | Fair value measurements | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	0	0
Certificates of deposit | Fair value measurements | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale - investment securities	0	0
Money market funds | Fair value measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	2,909	4,849
Money market funds | Fair value measurements | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	2,909	4,849
Money market funds | Fair value measurements | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Money market funds | Fair value measurements | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 0	$ 0

Internal-Use Software Develop29

Internal-Use Software Development Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Research and Development [Abstract]
Internal use software development costs, gross	$ 36,411		$ 33,545
Less: Accumulated amortization	(20,048)		(18,006)
Internal use software development costs, net	16,363		$ 15,539
Capitalized software development costs during the period	2,900	$ 2,400
Amortization expense with respect to software development costs during the period	$ 2,000	$ 1,300

Internal-Use Software Develop30

Internal-Use Software Development Costs - Capitalized Computer Software Future Amortization Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Research and Development [Abstract]
2,017	$ 6,211
2,018	6,601
2,019	3,322
2,020	229
Internal use software development costs, net	$ 16,363	$ 15,539

Intangible Assets - Intangible

Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 7,808		$ 7,808
Accumulated Amortization	(5,052)		(4,703)
Net Carrying Value	2,756		3,105
Amortization expense	300	$ 400
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	790		790
Accumulated Amortization	(431)		(392)
Net Carrying Value	359		398
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	4,811		4,811
Accumulated Amortization	(3,271)		(3,070)
Net Carrying Value	1,540		1,741
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	930		930
Accumulated Amortization	(447)		(416)
Net Carrying Value	483		514
Partner relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	680		680
Accumulated Amortization	(453)		(397)
Net Carrying Value	227		283
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	40		40
Accumulated Amortization	(27)		(23)
Net Carrying Value	13		17
Domain names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	273		273
Accumulated Amortization	(250)		(241)
Net Carrying Value	23		32
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	284		284
Accumulated Amortization	(173)		(164)
Net Carrying Value	$ 111		$ 120

Intangible Assets - Future Amor

Intangible Assets - Future Amortization (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2,017	$ 1,031
2,018	928
2,019	352
2,020	259
2,021	124
Thereafter	62
Net Carrying Value	$ 2,756	$ 3,105

Commitment and Contingencies (D

Commitment and Contingencies (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Feb. 27, 2017	Dec. 31, 2016	Oct. 09, 2015
Loss Contingencies [Line Items]
Operating lease obligations	$ 10,800,000		$ 3,100,000
Rent expense	500,000	$ 500,000
Per incident policy limit	$ 100,000
Quota share of tenant liability insurance provided, percent	100.00%
Other current liabilities
Loss Contingencies [Line Items]
Liability for reported claims and claims incurred but not reported	$ 400,000			$ 300,000
Prepaid expenses and other current assets
Loss Contingencies [Line Items]
Deposits held with a third party related to insurance services collateral	1,000,000			1,200,000
Credit Facility | Revolving Facility
Loss Contingencies [Line Items]
Maximum borrowing capacity					$ 25,000,000
Credit Facility | Term Loan
Loss Contingencies [Line Items]
Line of credit, amount outstanding	$ 0			$ 0

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Option Activity (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance (shares)	1,718,000
Options granted (shares)	132,000	250,000
Options exercised (in shares)	(41,000)
Options canceled/forfeited (shares)	(14,000)
Options outstanding, ending balance (shares)	1,795,000		1,718,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options outstanding, weighted average exercise price, beginning balance (usd per share)	$ 8.75
Options granted, weighted average exercise price (usd per share)	23.80	$ 11.70
Options exercised, weighted average exercise price (usd per share)	3.53
Options canceled/forfeited, weighted average exercise price (usd per share)	9.54
Options outstanding, weighted average exercise price, ending balance (usd per share)	$ 9.97		$ 8.75
Weighted average remaining contractual life, in years	8 years 1 month 12 days		8 years 2 months 12 days
Stock Options and PSOs
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Stock-based compensation expense	$ 537,000	$ 287,000
2019 Performance Metric | PSOs
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options granted (shares)	132,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options granted, weighted average exercise price (usd per share)	$ 23.80
Percent of targeted performance metric	165.00%
2019 Performance Metric | PSOs | Vesting Tranche One
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted performance metric	100.00%
Percent of targeted awards that will vest	61.00%
2019 Performance Metric | PSOs | Vesting Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted performance metric	80.00%
Percent of targeted awards that will vest	48.00%
2019 Performance Metric | PSOs | Vesting Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted performance metric	80.00%
2019 Performance Metric | PSOs | Vesting Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted awards that will vest	0.00%
Stock-based compensation expense	$ 0
2017 and 2018 Performance Metric | PSOs
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options granted (shares)	500,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted performance metric	150.00%
2017 and 2018 Performance Metric | PSOs | Vesting Tranche One
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted performance metric	100.00%
Percent of targeted awards that will vest	67.00%
2017 and 2018 Performance Metric | PSOs | Vesting Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted performance metric	80.00%
Percent of targeted awards that will vest	33.00%
2017 and 2018 Performance Metric | PSOs | Vesting Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted performance metric	80.00%
2017 and 2018 Performance Metric | PSOs | Vesting Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted performance metric	50.00%
Percent of targeted awards that will vest	0.00%
Stock-based compensation expense	$ 0
2016 Performance Metric | PSOs
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options canceled/forfeited (shares)	(3,000)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Percent of targeted performance metric	150.00%
Stock-based compensation expense			$ 1,000,000
Share-based compensation options vested (shares)	247,000
Share-based Compensation Arrangements by Share-based Payment Award, Percent Of Achievement Of Award Target Performance Metric	148.00%

Stock-Based Compensation - Valu

Stock-Based Compensation - Valuation Assumptions (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (shares)	132	250
Options granted, weighted average exercise price (usd per share)	$ 23.80	$ 11.70
Weighted average grant-date fair value per share (usd per share)	$ 9.29	$ 4.15
Stock Options and PSOs
Weighted average Black-Scholes model assumptions:
Risk-free interest rate	2.04%	1.28%
Expected term (in years)	6 years 4 months 24 days	5 years 4 months 24 days
Expected volatility	35.00%	37.00%
Expected dividend yield	0.00%	0.00%
Remaining stock-based compensation expense for unvested options, not yet recognized	$ 3.4
Stock-based compensation expense, weighted average recognition period	2 years

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock Units Activity (Details) - RSUs and PSUs shares in Thousands	3 Months Ended
	Mar. 31, 2017$ / sharesshares
Number of Shares
Unvested, beginning balance (shares) | shares	496
Granted (shares) | shares	260
Vested (shares) | shares	(111)
Forfeited (shares) | shares	(12)
Unvested, ending balance (shares) | shares	633
Weighted- Average Grant Date Fair Value per Share
Unvested, beginning balance (usd per share) | $ / shares	$ 13.34
Granted (usd per share) | $ / shares	24.23
Vested (usd per share) | $ / shares	12.07
Forfeited (usd per share) | $ / shares	12.82
Unvested, ending balance (usd per share) | $ / shares	$ 18.05

Stock-Based Compensation - Re37

Stock-Based Compensation - Restricted Stock Units (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Unvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted in period (shares)	151,000
Vesting period	4 years
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted in period (shares)	96,000		56,000
Percent of targeted performance metric	100.00%		100.00%
Stock-based compensation expense			$ 479,000
Share-based compensation options vested in period (shares)	41,000
Share-based Compensation Arrangements by Share-based Payment Award, Percent Of Achievement Of Award Target Performance Metric	148.00%
PSUs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of targeted performance metric	0.00%		0.00%
PSUs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of targeted performance metric	165.00%		150.00%
PSUs | Vesting Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of targeted performance metric	150.00%		150.00%
Percent of targeted awards that will vest	165.00%		150.00%
PSUs | Vesting Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of targeted performance metric	80.00%		80.00%
PSUs | Vesting Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of targeted performance metric			50.00%
Percent of targeted awards that will vest	0.00%		0.00%
Stock-based compensation expense	$ 0		$ 0
RSUs and PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted in period (shares)	260,000
Stock-based compensation expense	$ 597,000	$ 111,000
Share-based compensation options vested in period (shares)	111,000
Remaining stock-based compensation expense for unvested shares, not yet recognized	$ 9,900,000
Stock-based compensation expense, weighted average recognition period	3 years
2016 Performance Metric | PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted in period (shares)	13,000
Share-based compensation options vested in period (shares)			13,000

Stock-Based Compensation - Re38

Stock-Based Compensation - Restricted Stock Awards (Details) - Unvested restricted stock awards - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Number of Shares
Unvested, beginning balance (shares)	46
Granted (shares)	0
Vested (shares)	(9)
Forfeited (shares)	0
Unvested, ending balance (shares)	37
Weighted- Average Grant Date Fair Value per Share
Unvested, beginning balance (usd per share)	$ 8.55
Granted (usd per share)	0
Vested (usd per share)	2.43
Forfeited (usd per share)	0
Unvested, ending balance (usd per share)	$ 10.13
Stock-based compensation expense	$ 101	$ 115
Remaining stock-based compensation expense for unvested shares, not yet recognized	$ 141
Stock-based compensation expense, weighted average recognition period	1 year
Employee
Weighted- Average Grant Date Fair Value per Share
Vesting period	4 years
Non-Employee Director
Weighted- Average Grant Date Fair Value per Share
Vesting period	1 year

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
U.S Federal statutory rate	34.00%
Income tax expense	$ 11	$ 24
Pre-tax income (loss)	$ 671	$ (3,579)
Effective tax rate	1.60%	(0.67%)

Revenue and Other Information40

Revenue and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Product Information [Line Items]
Revenue	$ 32,126	$ 23,211
Core solutions
Product Information [Line Items]
Revenue	13,106	9,763
Value plus services
Product Information [Line Items]
Revenue	17,764	12,255
Other
Product Information [Line Items]
Revenue	$ 1,256	$ 1,193