CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenue:
Services	$ 19,305	$ 14,769	$ 51,879	$ 42,278
Software and other	4,054	3,407	11,807	10,799
Total revenue	23,359	18,176	63,686	53,077
Costs of revenue:
Cost of services	11,046	8,815	29,194	28,696
Cost of software and other	294	312	872	1,142
Total cost of revenue	11,340	9,127	30,066	29,838
Gross profit	12,019	9,049	33,620	23,239
Operating expenses:
Research and development	1,456	1,643	4,325	5,121
Sales and marketing	4,120	3,789	12,431	14,908
General and administrative	3,077	2,897	8,193	8,661
Amortization of intangible assets and other	335	397	1,005	1,155
Total operating expenses	8,988	8,726	25,954	29,845
Income (loss) from operations	3,031	323	7,666	(6,606)
Interest income and other, net	127	93	307	227
Income (loss) from continuing operations, before income taxes	3,158	416	7,973	(6,379)
Income tax provision	121	118	446	353
Income (loss) from continuing operations, after income taxes	3,037	298	7,527	(6,732)
Income (loss) from discontinued operations, after income taxes	(5)	(7)	(16)	10
Net income (loss)	$ 3,032	$ 291	$ 7,511	$ (6,722)
Basic earnings (loss) per share:
Continuing operations, after income taxes (in dollars per share)	$ 0.06	$ 0.01	$ 0.15	$ (0.14)
Discontinued operations, after income taxes (in dollars per share)	$ 0	$ 0	$ 0	$ 0
Basic net earnings (loss) per share (in dollars per share)	$ 0.06	$ 0.01	$ 0.15	$ (0.14)
Diluted earnings (loss) per share:
Continuing operations, after income taxes (in dollars per share)	$ 0.06	$ 0.01	$ 0.14	$ (0.14)
Discontinued operations, after income taxes (in dollars per share)	$ 0	$ 0	$ 0	$ 0
Diluted net earnings (loss) per share (in dollars per share)	$ 0.06	$ 0.01	$ 0.14	$ (0.14)
Shares used in computing per share amounts: [Abstract]
Basic (in shares)	52,266	48,707	51,080	48,571
Diluted (in shares)	54,661	50,326	53,508	48,571