Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Calculation of basic and diluted weighted average shares outstanding and earnings per share of common stock
Net income (loss)	$ (5,176)	$ 328
Preferred stock dividends	931	931
Net loss attributable to common stock	$ (6,107)	$ (603)
Weighted average shares outstanding:
Basic	11,305,881	11,228,752
Dilution effect of stock options outstanding at the end of period		6,680
Weighted average shares - diluted	11,305,881	11,235,432
Net loss per common share:
Basic	$ (0.54)	$ (0.05)
Diluted	$ (0.54)	$ (0.05)