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NOTES PAYABLE AND FINANCING TRANSACTIONS (Details Narrative) - USD ($)			12 Months Ended
	Nov. 06, 2020	Oct. 02, 2018	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Interest expense			$ 352,000	$ 236,000
Debt outstanding			$ 12,835,000
Minnesota Bank And Trust [Member]
Debt Instrument [Line Items]
Interest expense		$ 30,000
Percentage of late payment fee			5.00%
Increased percentage of default late payment			3.00%
Minnesota Bank And Trust [Member] \| Property Loan [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	Nov. 01, 2030
Balloon payment	$ 3,100,000
Description of prepayment	Any prepayment of the Property Loan (other than monthly scheduled interest and principal payments), is subject to a prepayment fee equal to 4% of the principal amount prepaid for any prepayment made during the first or second year, 3% of the principal amount prepaid for any prepayment made during the third or fourth year, 2% of the principal amount prepaid for any prepayment made during the fifth or sixth year, and 1% of the principal amount prepaid for any prepayment made during the seventh or eighth year.
Debt outstanding						$ 5,118,000
Minnesota Bank And Trust [Member] \| Term Loan One [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 7,525,000
Debt instrument, maturity date	Nov. 01, 2027
Debt outstanding	$ 3,770,331		$ 6,716,000
Amount borrowed for repurchase of common stock					$ 3,000,000
Interest rate	3.84%
Periodic payment of principal and interest	$ 97,000
Minnesota Bank And Trust [Member] \| Term Loan Two [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 1,000,000
Debt instrument, maturity date	Nov. 01, 2027
Debt outstanding					$ 1,000,000
Interest rate	3.84%
Periodic payment of principal and interest	$ 15,000
Minnesota Bank And Trust [Member] \| Revolving Loan [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 2,000,000
Debt instrument, maturity date	Nov. 05, 2021
Interest rate	3.25%
Property Loan [Member] \| Minnesota Bank And Trust [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 5,200,000
Loan origination fees	$ 26,037,000
Loan bears interest rate	3.55%