Condensed Consolidated Statement of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Condensed Consolidated Statements of Operations [Abstract]
Total revenues	$ 7,881	$ 8,258	$ 24,631	$ 24,539
Cost of revenues	3,970	4,268	12,623	12,527
Gross profit	3,911	3,990	12,008	12,012
Operating expenses:
Research and development	1,006	894	3,294	2,747
Sales and marketing	1,875	1,747	5,861	5,311
General and administrative	1,609	1,088	4,018	3,193
Total operating expenses	4,490	3,729	13,173	11,251
(Loss) income from continuing operations	(579)	261	(1,165)	761
Legal settlement	0	0	800	800
Interest and other expense, net	(117)	(53)	(192)	(46)
(Loss) income from continuing operations before income taxes	(696)	208	(557)	1,515
(Benefit from) provision for income tax expense	(141)	(48)	(134)	175
(Loss) income from continuing operations	(555)	256	(423)	1,340
(Loss) income from discontinued operations, net of tax	(190)	93	(413)	484
Gain on sale of discontinued operations, net of tax	0	0	2,032	0
(Loss) income from discontinued operations, net of tax	(190)	93	1,619	484
Net (loss) income	$ (745)	$ 349	$ 1,196	$ 1,824
Basic
Continuing operations	$ (0.06)	$ 0.03	$ (0.05)	$ 0.15
Discontinued operations	$ (0.02)	$ 0.01	$ 0.18	$ 0.05
Net (loss) income	$ (0.08)	$ 0.04	$ 0.13	$ 0.20
Diluted
Continuing operations	$ (0.06)	$ 0.02	$ (0.05)	$ 0.13
Discontinued operations	$ (0.02)	$ 0.01	$ 0.18	$ 0.05
Net (loss) income	$ (0.08)	$ 0.03	$ 0.13	$ 0.18
Weighted average shares used in computing net (loss) income per common share
Basic	9,005	8,965	8,974	8,963
Diluted	9,005	10,253	8,974	10,233