Share Repurchase Program (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended			6 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Share Repurchase Program (Textual) [Abstract]
Common stock amount authorized under repurchase program				$ 50.0
Common Stock Repurchased During Period, Shares	160,100	164,638	66,700	467,438	66,700
Average Stock Price of Shares Repurchased During Period	$ 9.03	$ 8.79	$ 11.50	$ 8.76	$ 11.50
Common Stock Repurchased, Shares		3,908,965		3,908,965
Average Stock Price of Shares Repurchased		$ 6.66		$ 6.66
Additional Common Stock Repurchase, Value		$ 24.0		$ 24.0