Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Numerator [Abstract]
Net Income - Basic	$ 1,782	$ 2,850	$ 10,422	$ 29,768
Net Income - Diluted	$ 1,782	$ 2,850	$ 10,422	$ 29,768
Denominator - Weighted Avg Shares of Common Stock Outstanding [Abstract]
Basic (in shares)	7,203,860	7,140,752	7,192,818	7,128,810
Plus: Effect of dilutive restrictive stock (in shares)	17,041	49,330	16,068	36,488
Diluted (in shares)	7,220,901	7,190,082	7,208,886	7,165,298
Basic and Diluted Earnings Per Common Share [Abstract]
Net income per share - basic (in dollars per share)	$ 0.25	$ 0.40	$ 1.45	$ 4.18
Net income per share - diluted (in dollars per share)	$ 0.25	$ 0.40	$ 1.45	$ 4.15