Stock Based Compensation (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Stock Based Compensation Expenses (Textual) [Abstract]
Unrecognized compensation costs related to non-vested awards	$ 4,100,000		$ 4,100,000
Weighted average period for recognition of compensation costs related to non-vested awards			2 years 1 month 6 days
Performance Share Awards Fully Expensed	90,000		90,000
Performance Share Awards Not Be Fully Expensed	100,000		100,000
Weighted average per share fair value of stock options	$ 5.94		$ 5.24	$ 3.96
Stock options granted		0
Total pre-tax intrinsic value of options exercised			49,000,000
Stock options exercised	0	0	0	0
Authorized Common Stock			400,000
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of non qualified stock options on each of first four anniversaries.			25.00%
Percentage of non qualified stock options on each of first five anniversaries			20.00%
Restricted Stock Expenses	100,000	100,000	200,000	500,000
Performance Shares	400,000	100,000	700,000	200,000
Annual compensation withheld			10.00%
Maximum Limit			25,000,000
Employee contributions	100,000	100,000	100,000	100,000
Stock compensation expense recognized	$ 100,000	100,000	$ 100,000	$ 100,000