CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings (Accumulated Deficit) [Member]	Total
Balance at Dec. 31, 2009	$ 0	$ 53,588	$ 148	$ (1,181)	$ (36,206)	$ 16,349
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	0	0	1,226	1,226
Change in accumulated pension obligation, net of tax	0	0	0	33	0	33
Amortization of loss on interest rate swap agreements, net of tax	0	0	0	318	0	318
Stock option and compensation expense	0	210	0	0	0	210
Balance at Dec. 31, 2010	0	53,798	148	(830)	(34,980)	18,136
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	0	0	8,470	8,470
Change in accumulated pension obligation, net of tax	0	0	0	(30)	0	(30)
Amortization of loss on interest rate swap agreements, net of tax	0	0	0	677	0	677
Issuance of shares upon exercise of common stock warrants	0	90	1,145	0	0	1,235
Issuance of shares upon exercise of common stock options	0	21	0	0	0	21
Stock option and compensation expense	0	333	0	0	0	333
Balance at Dec. 31, 2011	0	54,242	1,293	(183)	(26,510)	28,842
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	0	0	28,095	28,095
Change in accumulated pension obligation, net of tax	0	0	0	200	0	200
Issuance of shares for an acquisition	0	600	42	0	0	642
Issuance of shares upon exercise of common stock warrants	0	275	2,647	0	0	2,922
Issuance of shares upon exercise of common stock options	0	113	323	0	0	436
Shares used to pay taxes on stock grants	0	(531)	0	0	0	(531)
Stock option and compensation expense	0	802	0	0	0	802
Balance at Dec. 31, 2012	$ 0	$ 55,501	$ 4,305	$ 17	$ 1,585	$ 61,408