CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Comprehensive Income (Loss) [Member]	Preferred Stock [Member]	Common Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2008	$ (72,274)	$ 0	$ 53,522	$ (1,439)	$ 362	$ (31,685)	$ 20,760
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(4,521)	0	0	0	0	(4,521)	(4,521)
Change in accumulated pension obligation, net of tax	(60)	0	0	(60)	0	0	(60)
Amortization of loss on interest rate swap agreements	318	0	0	318	0	0	318
Reclass of warrants to long-term liabilities	0	0	0	0	(214)	0	(214)
Issuance of shares upon exercise of common stock options	0	0	7	0	0	0	7
Stock option and compensation expense	0	0	98	0	0	0	98
Equity issuance expenses	0	0	(39)	0	0	0	(39)
Balance at Dec. 31, 2009	(4,263)	0	53,588	(1,181)	148	(36,206)	16,349
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,226	0	0	0	0	1,226	1,226
Change in accumulated pension obligation, net of tax	33	0	0	33	0	0	33
Amortization of loss on interest rate swap agreements	318	0	0	318	0	0	318
Stock option and compensation expense	0	0	210	0	0	0	210
Balance at Dec. 31, 2010	1,577	0	53,798	(830)	148	(34,980)	18,136
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	8,470	0	0	0	0	8,470	8,470
Change in accumulated pension obligation, net of tax	(30)	0	0	(30)	0	0	(30)
Amortization of loss on interest rate swap agreements	677	0	0	677	0	0	677
Issuance of shares upon exercise of common stock warrants	0	0	90	0	1,145	0	1,235
Issuance of shares upon exercise of common stock options	0	0	21	0	0	0	21
Stock option and compensation expense	0	0	333	0	0	0	333
Balance at Dec. 31, 2011	$ 9,117	$ 0	$ 54,242	$ (183)	$ 1,293	$ (26,510)	$ 28,842