(Loss) Earnings per Share - Amounts Used in Computing (Loss) 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, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Numerator:
Loss from continuing operations - basic and diluted					$ (18,032)	$ (5,774)	$ (3,554)	$ (6,879)	$ (1,298)	$ (34,239)	$ (22,975)
Income (loss) from discontinued operations - basic and diluted					1,053	(735)	10,487	651	0	11,456	(32,500)
Net loss	$ 330	$ 516	$ (351)	$ (1,793)	$ (16,979)	$ (6,509)	$ 6,933	$ (6,228)	$ (1,298)	$ (22,783)	$ (55,475)
Denominator:
Weighted average shares outstanding - basic and diluted (in shares)									21,880,000	22,432,000	22,785,000
(Loss) earnings per share - basic and diluted:
Loss from continuing operations (in dollars per share)					$ (0.83)	$ (0.26)	$ (0.16)	$ (0.30)	$ (0.06)	$ (1.53)	$ (1.01)
Income (loss) from discontinued operations (in dollars per share)					$ 0.05	$ (0.03)	$ 0.46	$ 0.03	$ 0.00	$ 0.51	$ (1.43)
Net loss per share (in dollars per share)					$ (0.78)	$ (0.29)	$ 0.30	$ (0.27)	$ (0.06)	$ (1.02)	$ (2.44)
Anti-dilutive stock options, SSARs, restricted shares and performance shares									1,781,000	2,449,000	3,852,000
Outstanding weighted average basic shares, number of excluded restricted shares and performance shares									139,767	48,558	84,738