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Summary of Significant Accounting Policies (Details Textual) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Summary of Significant Accounting Policies (Textual) [Abstract]        
Weighted average shares excluded from the calculation of diluted earnings per share 147 132 147 121
Interest rate swap agreement amount $ 8,500   $ 8,500