Summary of Significant Accounting Policies (Loss) Earnings per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
(Loss) Earnings Per Share [Abstract]
(Loss) income from continuing operations	$ (6,737)	$ (2,193)	$ (5,595)	$ (3,138)	$ (578)	$ (1,330)	$ (1,621)	$ (57)	$ (17,663)	$ (3,586)	$ 1,421
Income from discontinued operations, net of income taxes									65	62	55
Net (loss) income	$ (6,737)	$ (2,193)	$ (5,530)	$ (3,138)	$ (578)	$ (1,268)	$ (1,621)	$ (57)	$ (17,598)	$ (3,524)	$ 1,476
Weighted average number of shares - Basic									69,743,897	69,628,135	69,437,710
Effect of dilutive common stock options and restricted stock									0	0	459,259
Weighted average number of shares - Diluted									69,743,897	69,628,135	69,896,969
Continuing operations, basic	$ (0.10)	$ (0.03)	$ (0.08)	$ (0.05)	$ (0.01)	$ (0.02)	$ (0.02)	$ 0.00	$ (0.25)	$ (0.05)	$ 0.02
Continuing operations, diluted	$ (0.10)	$ (0.03)	$ (0.08)	$ (0.05)	$ (0.01)	$ (0.02)	$ (0.02)	$ 0.00	$ (0.25)	$ (0.05)	$ 0.02
Discontinued operations, basic	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Discontinued operations, diluted	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Net (loss) income, basic	$ (0.10)	$ (0.03)	$ (0.08)	$ (0.05)	$ (0.01)	$ (0.02)	$ (0.02)	$ 0.00	$ (0.25)	$ (0.05)	$ 0.02
Net (loss) income, diluted	$ (0.10)	$ (0.03)	$ (0.08)	$ (0.05)	$ (0.01)	$ (0.02)	$ (0.02)	$ 0.00	$ (0.25)	$ (0.05)	$ 0.02
Antidilutive options excluded from computation of (loss) earnings per share									5,171,000	4,028,000	5,408,000