Subsequent Events (Details) (USD $)	1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Jul. 25, 2012	Jun. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
Subsequent Events (Textual) [Abstract]
Repurchased common stock, shares	546,726		196,342	79,730
Repurchased common stock, value	$ 5,200,000
Repurchased common stock, average price per share	$ 9.59	$ 9.34