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Share Repurchase Program (Details) (USD $)	12 Months Ended
Share Repurchase Program (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Share Repurchase Program
Maximum number of shares authorized to be repurchased	2,000,000
Average price of common shares repurchased (in dollars per share)	$ 7.21
Cash consideration of common shares repurchased	$ 1,088,619	$ 2,513,871	$ 1,202,339
Remaining number of shares authorized to be repurchased	1,278,947

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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