CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenue:
Services	$ 16,128	$ 13,744	$ 32,574	$ 27,509
Software and other	3,996	3,569	7,752	7,392
Total revenue	20,124	17,313	40,326	34,901
Costs of revenue:
Cost of services	8,838	9,591	18,148	19,881
Cost of software and other	271	360	578	830
Total cost of revenue	9,109	9,951	18,726	20,711
Gross profit	11,015	7,362	21,600	14,190
Operating expenses:
Research and development	1,282	1,708	2,870	3,478
Sales and marketing	4,375	4,989	8,311	11,119
General and administrative	2,354	2,850	5,117	5,764
Amortization of intangible assets and other	335	391	670	758
Total operating expenses	8,346	9,938	16,968	21,119
Income (loss) from operations	2,669	(2,576)	4,632	(6,929)
Interest income and other, net	108	59	181	134
Income (loss) from continuing operations, before income taxes	2,777	(2,517)	4,813	(6,795)
Income tax provision	177	116	326	235
Income (loss) from continuing operations, after income taxes	2,600	(2,633)	4,487	(7,030)
Income (loss) from discontinued operations, after income taxes	(5)	(7)	(10)	17
Net income (loss)	$ 2,595	$ (2,640)	$ 4,477	$ (7,013)
Basic and diluted earnings (loss) per share:
Income (loss) from continuing operations (in dollars per share)	$ 0.05	$ (0.05)	$ 0.09	$ (0.14)
Income (loss) from discontinued operations (in dollars per share)	$ 0	$ 0	$ 0	$ 0
Basic and diluted earnings (loss) per share (in dollars per share)	$ 0.05	$ (0.05)	$ 0.09	$ (0.14)
Shares used in computing per share amounts: [Abstract]
Basic (in shares)	50,792	48,584	50,476	48,521
Diluted (in shares)	52,866	48,584	52,535	48,521