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Nature of Operations and Summary of Significant Accounting Policies (Details 2) (USD $)
3 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Components of comprehensive income (loss)    
Net income (loss) $ (1,359,642) $ 26,275
Other comprehensive income (loss):    
Change in unrealized gains/losses on marketable securities 4,378 4,931
Total comprehensive income (loss) $ (1,355,264) $ 31,206