Consolidated Statements of Operations (unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Revenues	$ 31,679	$ 35,401	$ 66,464	$ 74,193
Cost of operations	25,936	28,317	53,317	58,090
Gross profit	5,743	7,084	13,147	16,103
Selling, general and administrative expenses	9,657	11,033	19,394	22,486
Impairment of long-lived assets	238	225	360	225
Restructuring charges	756	1,350	768	1,967
Operating loss	(4,908)	(5,524)	(7,375)	(8,575)
Other expense:
Interest expense	(24)	(2)	(26)	(6)
Interest income	1	7	4	16
Other expense, net	(132)	(73)	(212)	(145)
Other expense	(155)	(68)	(234)	(135)
Loss from continuing operations before income taxes	(5,063)	(5,592)	(7,609)	(8,710)
Income tax expense	14	3	28	23
Loss from continuing operations	(5,077)	(5,595)	(7,637)	(8,733)
Discontinued operations:
Gain on sale of subsidiary	75	65	75	65
Net loss	$ (5,002)	$ (5,530)	$ (7,562)	$ (8,668)
Basic and diluted loss per share:
Continuing operations, Basic (in dollars per share)	$ (0.07)	$ (0.08)	$ (0.11)	$ (0.13)
Continuing operations, Diluted (in dollars per share)	$ (0.07)	$ (0.08)	$ (0.11)	$ (0.13)
Discontinued operations, Basic (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Discontinued operations, Diluted (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Net loss, Basic (in dollars per share)	$ (0.07)	$ (0.08)	$ (0.11)	$ (0.12)
Net loss, Diluted (in dollars per share)	$ (0.07)	$ (0.08)	$ (0.11)	$ (0.12)
Weighted average number of shares - Basic (in shares)	69,845,277	69,679,477	69,840,332	69,674,532
Weighted average number of shares - Diluted (in shares)	69,845,277	69,679,477	69,840,332	69,674,532