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Fair Value Measurements (Details 1) (USD $)
3 Months Ended 9 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Fair Value Measurements Details 1        
Total gains or (losses) included in earnings $ 21,936 $ 18,703 $ 101,394 $ 91,719