Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Calculation of basic and diluted weighted average shares outstanding and earnings per share of common stock
Net loss	$ (4,386)	$ (5,176)
Preferred stock dividends	(931)	(931)
Loss attributable to common stock	$ (5,317)	$ (6,107)
Weighted average shares outstanding:
Basic	11,719,549	11,305,881
Dilutive effect of stock options outstanding at the end of period
Weighted average shares - fully diluted	11,719,549	11,305,881
Net income (loss) per share:
Basic	$ (0.45)	$ (0.54)
Diluted	$ (0.45)	$ (0.54)