Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net loss	$ (3,570)	$ (1,588)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Stock-based compensation expense	586	34
Depreciation and amortization	32	18
Changes in operating assets and liabilities:
Accounts receivable	1,316	2,273
Prepaid expenses and other current assets	(186)	(26)
Accounts payable and accrued expenses	(36)	(199)
Deferred revenue	195	11
Net cash (used in) provided by operating activities	(1,663)	523
Cash flows from investing activities:
Purchase of property and equipment	(28)	(201)
Net cash used in investing activities	(28)	(201)
Cash flows from financing activities:
Proceeds from stock option exercises	167
Net cash provided by financing activities	167
Effect of exchange rate changes on cash	9	45
Net decrease (increase) in cash	(1,515)	367
Cash at beginning of period	9,097	12,940
Cash at end of period	7,582	13,307
Supplemental disclosure of cash flow information:
Income taxes paid	$ 11	$ 22