Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net loss	$ (9,058)	$ (1,052)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation and amortization	634	598
Stock-based compensation	1,757	1,247
Deferred income taxes	(16)
Changes in operating assets and liabilities:
Accounts receivable, net	2,814	(2,570)
Prepaid expenses and other assets	331	(235)
Contract assets, current	149
Third-party software fees payable	(4,284)	3,042
Accounts payable and accrued expenses	317	(850)
Deferred revenue	(547)	2,727
Deferred rent	(320)	(300)
Net cash provided (used) by operating activities	(8,223)	2,607
Cash flows from investing activities:
Purchases of equipment and furniture	(439)	(390)
Proceeds from maturities of short-term investments	33,532	24,950
Purchases of short-term investments	(26,544)	(30,566)
Reduction of restricted cash equivalents		250
Net cash provided (used) by investing activities	6,549	(5,756)
Cash flows from financing activities:
Proceeds from exercise of stock options	202	1,110
Effect of exchange rates on cash	19	(92)
Net decrease in cash and cash equivalents	(1,453)	(2,131)
Cash and cash equivalents, beginning of year	14,312	16,443
Cash and cash equivalents, end of year	12,859	14,312
Supplemental cash flow information:
Cash paid for income taxes	$ 256	$ 194