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Notes Payable - Schedule of Notes and Unamortized Debt Discount (Detail) - USD ($)
$ in Thousands
Sep. 30, 2015
Jun. 30, 2015
Notes payable    
Secured notes payable $ 1,220 $ 900
Unsecured notes payable 2,375 1,450
Unamortized debt discount (426) (200)
Notes payable $ 3,169 $ 2,150