Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash flows provided by operating activities:
Net income (loss)	$ (1,052)	$ 6,093
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	598	575
Stock-based compensation	1,247	1,516
Deferred income taxes		209
Changes in operating assets and liabilities:
Accounts receivable, net	(2,570)	(5,383)
Prepaid expenses and other assets	(235)	139
Third-party software fees payable	3,042	(458)
Accounts payable and accrued expenses	(850)	45
Deferred revenue	2,727	423
Deferred rent	(300)	(276)
Net cash provided by operating activities	2,607	2,883
Cash flows used in investing activities:
Purchases of equipment and furniture	(390)	(272)
Proceeds from maturities of short-term investments	24,950	25,081
Purchases of short-term investments	(30,566)	(25,089)
Reduction of restricted cash equivalents	250
Net cash used for investing activities	(5,756)	(280)
Cash flows from financing activities:
Proceeds from exercise of stock options	1,110	716
Effect of exchange rate changes on cash	(92)	(3)
Net increase (decrease) in cash and cash equivalents	(2,131)	3,316
Cash and cash equivalents, beginning of year	16,443	13,127
Cash and cash equivalents, end of year	14,312	16,443
Supplemental cash flow information:
Cash paid for income taxes	$ 194	$ 310