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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Accrued liabilities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Payroll and related items $ 480 $ 438
Accrued inventory in transit 276 301
Accrued legal and professional fees 130 155
Accrued bonuses 221 109
Warranty 136 107
Accrued losses on development contracts 83 83
Accrued sales, use and excise taxes 2 6
Other 109 67
Total accrued expenses $ 1,437 $ 1,266