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Commitment and Contingencies (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]        
Rental expense $ 177 $ 149 $ 339 $ 321
Future Minimum Lease Payments:        
Six months ended June 30, 2018 250   250  
Fiscal 2019 472   472  
Fiscal 2020 354   354  
Future minimum lease payments $ 1,076   $ 1,076