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NOTES PAYABLE AND FINANCING TRANSACTIONS (Details) - USD ($)
3 Months Ended 9 Months Ended
Oct. 02, 2018
Sep. 06, 2018
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Debt Instrument [Line Items]            
Interest expense     $ 58,000 $ 67,000 $ 180,000 $ 156,000
Business Loan Agreement ("Revolving Loan Agreement") [Member]            
Debt Instrument [Line Items]            
Note payable balance     0   $ 0  
Minnesota Bank & Trust [Member]            
Debt Instrument [Line Items]            
Debt instrument, origination fee   $ 60,000        
Percentage of late payment fee         5.00%  
Increased percentage of default late payment         3.00%  
Minnesota Bank & Trust [Member] | Business Loan Agreement ("Revolving Loan Agreement") [Member]            
Debt Instrument [Line Items]            
Debt instrument, maturity date   Sep. 06, 2019        
Debt instrument, face amount   $ 2,000,000        
Interest rate   4.50%        
Note payable balance     $ 4,100,000   $ 4,100,000  
Minnesota Bank & Trust [Member] | Business Loan Agreement ("Term Loan Agreement") [Member]            
Debt Instrument [Line Items]            
Debt instrument, maturity date   Oct. 01, 2025        
Debt instrument, face amount   $ 5,000,000        
Interest rate   5.53%        
Interest expense $ 18,433          
Debt instrument, periodic payment of principal and interest beginning November 1, 2018   $ 72,000