Net Income (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2009
Numerator:
Income (loss) from continuing operations	$ (2,308)	$ (1,328)	$ (2,527)	$ 17
Gain from discontinued operations, net of tax	153	18	153	61	187
Net income (loss) used in computing basic and diluted net income (loss) per share	$ (2,155)	$ (1,310)	$ (2,374)	$ 78
Denominator:
Shares used in computation of basic net income (loss) per share (weighted average common shares outstanding)	28,058	28,610	28,000	28,431
Dilutive potential common shares:
Shares used in computation of diluted net income (loss) per share	28,058	28,610	28,000	29,241
Basic net income (loss) per share from:
Continuing operations	$ (0.08)	$ (0.05)	$ (0.09)	$ 0.00
Discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Total	$ (0.08)	$ (0.05)	$ (0.09)	$ 0.00
Diluted net income (loss) per share:
Continuing operations	$ (0.08)	$ (0.05)	$ (0.09)	$ 0.00
Discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Total	$ (0.08)	$ (0.05)	$ (0.09)	$ 0.00
Restricted Stock and Restricted Stock Units [Member]
Dilutive potential common shares:
Dilutive potential common shares	0	0	0	172
Stock Options [Member]
Dilutive potential common shares:
Dilutive potential common shares	0	0	0	638