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Supplemental Financial Information (Details - Severance of Related Charges) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Severance payable, beginning balance $ 615  
Charges 506 $ 3,844
Payments (1,033)  
Severance payable, ending balance $ 88 $ 615