Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 4,953	$ 949
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	425	479
Realized loss on disposal of assets		33
Stock-based compensation	1,022	691
Changes in operating assets and liabilities:
Accounts receivable, net	(1,934)	4,144
Prepaid expenses and other assets	203	1,871
Third-party software fees payable	(2,063)	(2,805)
Accounts payable and accrued expenses	224	(645)
Deferred revenue	(7)	(673)
Deferred rent	(203)	20
Net cash provided by operating activities	2,620	4,064
Cash flows from investing activities:
Purchases of equipment and furniture	(225)	(276)
Proceeds from maturities of short-term investments	14,253	9,195
Purchases of short-term investments	(16,906)	(14,547)
Net cash used in investing activities	(2,878)	(5,628)
Cash flows provided by financing activities:
Proceeds from exercise of stock options	508	595
Effect of exchange rate changes on cash	8	34
Net increase (decrease) in cash and cash equivalents	258	(935)
Cash and cash equivalents, beginning of period	13,127	13,510
Cash and cash equivalents, end of period	$ 13,385	12,575
Supplemental disclosure of cash flow information:
Non-cash investing activity-leasehold improvements and furniture funded by landlord		$ 1,128