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Long-Term Debt (Details) - USD ($)
3 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Jun. 30, 2020
Long-term debt disclosure:      
Line of credit, maximum borrowing capacity $ 11,000,000 $ 11,000,000  
Debt by current and non-current      
Borrowings   3,904,000  
Less: current maturities   (2,386,000)  
Carrying amount of long-term debt, including current portion   $ 1,518,000  
Paycheck Protection Program      
Long-term debt disclosure:      
Loan forgiven $ 3,904,000    
Term Loans      
Long-term debt disclosure:      
Interest rate   1.00%  
Debt by current and non-current      
Borrowings   $ 3,904,000  
Term Loans | Paycheck Protection Program      
Long-term debt disclosure:      
Debt instrument, face     $ 3,904,000
Revolver Agreement      
Long-term debt disclosure:      
Stock collateral (as a percent) 65%    
Revolver Agreement | LIBOR      
Long-term debt disclosure:      
Basis spread 0.25%    
Revolver Agreement | LIBOR | Minimum      
Long-term debt disclosure:      
Interest rate 1.15%    
Revolver Agreement | LIBOR | Maximum      
Long-term debt disclosure:      
Interest rate 2.00%