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Supplemental Financial Information (Details - Non-cash acquisition) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Accrued property and equipment paid for in the subsequent period $ 185 $ 76
Fair value of warrant to purchase common stock issued with bank credit facility $ 250 $ 0