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Share Repurchase Program (Details) (USD $)
9 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Share Repurchase Program    
Maximum number of shares authorized to be repurchased 2,000,000  
Number of common shares repurchased 150,900  
Average price of common shares repurchased (in dollars per share) $ 7.21  
Cash consideration for the repurchased shares   $ 1,088,619
Remaining number of shares authorized to be repurchased 1,278,947