Summary of Significant Accounting Policies (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Basic EPS
Net income (loss) available to common shareholders	$ (26,215)	$ 7,476	$ 5,875
Shares (denominator)	17,049,513	16,856,072	16,764,879
Basic EPS	$ (1.54)	$ 0.44	$ 0.35
Diluted EPS per common share
Effect of Dilutive Securities		27,172	28,771
Income (numerator)	$ (26,215)	$ 7,476	$ 5,875
Shares (denominator)	17,049,513	16,883,244	16,793,650
Diluted EPS per common share	$ (1.54)	$ 0.44	$ 0.35