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Notes Receivable (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Sep. 30, 2016
Accounts Receivable Net [Abstract]    
Notes receivable $ 4,222 $ 3,850
Allowance for doubtful notes (1,020) (500)
Total 3,202 3,350
Less current portion 2,614 1,533
Non-current notes receivable $ 588 $ 1,817