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Securities and Equity Investments - Enertech FV (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Jun. 30, 2016
Sep. 30, 2015
Investments, Debt and Equity Securities [Abstract]    
Carrying Value $ 919 $ 919
Unrealized Gain (Loss) on Investments 80 66
Fair Value $ 999 $ 985