CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Series A Preferred Stock [Member]	Series B Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
BALANCES at Dec. 31, 2008	$ 1	$ 15	$ 128	$ 56,206	$ 74,559	$ 0	$ (721)	$ 130,188
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid	0	0	0	0	(90)	0	0	(90)
Compensation expense for restricted stock	0	0	0	1,555	0	0	0	1,555
Net gain on interest rate (long-term Investment) swap for comprehensive income	0	0	0	0	0	0	695	695
Exercise of stock options and vesting of restricted stock for common stock	0	0	1	276	0	0	0	277
Net income (loss)	0	0	0	0	(42,412)	0	0	(42,412)
BALANCES at Dec. 31, 2009	1	15	129	58,037	32,057	0	(26)	90,213
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid	0	0	0	0	(90)	0	0	(90)
Compensation expense for restricted stock	0	0	0	973	0	0	0	973
Net gain on interest rate (long-term Investment) swap for comprehensive income	0	0	0	0	0	0	26	26
Issuance of shares in connection with acquisitions	0	0	5	7,061	0	0	0	7,066
Issuance of shares upon conversion of notes to common stock	0	0	5	6,206	0	0	0	6,211
Exercise of stock options and vesting of restricted stock for common stock	0	0	1	339	0	0	0	340
Net income (loss)	0	0	0	0	19,381	0	0	19,381
BALANCES at Dec. 31, 2010	1	15	140	72,616	51,348	0	0	124,120
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid	0	0	0	0	(90)	0	0	(90)
Compensation expense for restricted stock	0	0	0	1,256	0	0	0	1,256
Net gain on interest rate (long-term Investment) swap for comprehensive income	0	0	0	0	0	0	64	64
Issuance of shares in connection with acquisitions	0	0	0	1,143	0	0	0	1,143
Vesting of restricted stock for 68,069 shares of common stock	0	0	1	189	0	0	0	190
Acquisition of shares of common stock	0	0	0	0	0	(1,445)	0	(1,445)
Net income (loss)	0	0	0	0	31,437	0	0	31,437
BALANCES at Dec. 31, 2011	$ 1	$ 15	$ 141	$ 75,204	$ 82,695	$ (1,445)	$ 64	$ 156,675