EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended					12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Numerator:
Loss from continuing operations	$ (273)				$ (3,269)
(Loss) income from discontinued operations, net of tax	(2,444)				17,418
Net (loss) income	$ (2,717)				$ 14,149
Denominator:
Weighted average common shares, basic	10,967,000	10,768,000	10,771,000	10,685,000	10,555,000	10,695,000	10,377,000
Weighted average common shares, diluted	10,967,000	11,557,000	11,385,000	10,685,000	10,555,000	10,695,000	10,377,000
Income (Loss) per Share:
Loss from continuing operations (in dollars per share)	$ (0.02)	$ 0.23	$ 0.03	$ (0.16)	$ (0.31)	$ (0.21)	$ (4.79)
Loss from continuing operations (in dollars per share)	$ (0.02)	$ 0.22	$ 0.02	$ (0.16)	$ (0.31)	$ (0.21)	$ (4.79)
Income (loss) from discontinued operations, net of tax, basic	$ (0.22)	$ (0.02)	$ 0.38	$ 2.58	$ 1.65	$ 4.57	$ (0.94)
Income (loss) from discontinued operations, net of tax, diluted	$ (0.22)	$ (0.02)	$ 0.36	$ 2.58	$ 1.65	$ 4.57	$ (0.94)
Net income (loss) per common share, basic (in dollars per share)	$ (0.25)	$ 0.22	$ 0.41	$ 2.41	$ 1.34	$ 4.36	$ (5.73)
Net income (loss) per common share, diluted (in dollars per share)	$ (0.25)	$ 0.20	$ 0.38	$ 2.41	$ 1.34	$ 4.36	$ (5.73)
Anti-dilutive securities excluded from calculation of diluted earnings per share	700,000				200,000	0	0