Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements of Operations [Abstract]
Revenues	$ 146,255	$ 157,489	$ 166,370
Cost of operations	114,932	118,394	122,889
Gross profit	31,323	39,095	43,481
Selling, general and administrative expenses	40,919	42,260	42,156
Impairment of long-lived assets	5,314	210	65
Restructuring charges	2,442	112	1,026
Operating (loss) income from continuing operations	(17,352)	(3,487)	234
Other (expense) income:
Interest expense	(10)	(18)	(12)
Interest income	26	62	122
Other (expense) income, net	(259)	(20)	1,302
Other (expense) income	(243)	24	1,412
(Loss) income from continuing operations before income taxes	(17,595)	(3,463)	1,646
Income tax expense	68	123	225
(Loss) income from continuing operations	(17,663)	(3,586)	1,421
Discontinued operations:
Gain on sale of subsidiary	65	62	55
Net (loss) income	$ (17,598)	$ (3,524)	$ 1,476
Basic and diluted (loss) earnings per share:
Continuing operations, basic	$ (0.25)	$ (0.05)	$ 0.02
Continuing operations, diluted	$ (0.25)	$ (0.05)	$ 0.02
Discontinued operations, basic	$ 0.00	$ 0.00	$ 0.00
Discontinued operations, diluted	$ 0.00	$ 0.00	$ 0.00
Net (loss) income, basic	$ (0.25)	$ (0.05)	$ 0.02
Net (loss) income, diluted	$ (0.25)	$ (0.05)	$ 0.02
Weighted average number of shares - Basic	69,743,897	69,628,135	69,437,710
Weighted average number of shares - Diluted	69,743,897	69,628,135	69,896,969