Composition of Certain Financial Statement Items (Accrued liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Warranty	$ 159	$ 365
Payroll and related items	417	443
Accrued bonuses	390
Accrued legal and professional fees	151	60
Deferred rent	68	79
Accrued sales, use and excise taxes	9	7
Accrued losses on development contracts		28
Accrued inventory in transit	52	11
Other	98	83
Total accrued expenses	$ 1,344	$ 1,076