Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 209	$ 4,953
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	442	425
Stock-based compensation	908	1,022
Changes in operating assets and liabilities:
Accounts receivable, net	(799)	(1,934)
Prepaid expenses and other assets	220	203
Third-party software fees payable	(721)	(2,063)
Accounts payable and accrued expenses	(906)	224
Deferred revenue	2,076	(7)
Deferred rent	(223)	(203)
Net cash provided by operating activities	1,206	2,620
Cash flows from investing activities:
Purchases of equipment and furniture	(368)	(225)
Proceeds from maturities of short-term investments	18,200	14,253
Purchases of short-term investments	(24,159)	(16,906)
Reduction of restricted cash equivalents	250
Net cash used in investing activities	(6,077)	(2,878)
Cash flows provided by financing activities:
Proceeds from exercise of stock options	832	508
Effect of exchange rate changes on cash	(58)	8
Net increase (decrease) in cash and cash equivalents	(4,097)	258
Cash and cash equivalents, beginning of period	16,443	13,127
Cash and cash equivalents, end of period	$ 12,346	$ 13,385