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Maturities of the Company’s lease liabilities are as follows: (Details) - USD ($)
Jun. 30, 2021
Jun. 01, 2021
Dec. 31, 2020
Leases [Abstract]      
Lessee, Operating Lease, Liability, to be Paid, Year One $ 21,000    
Lessee, Operating Lease, Liability, to be Paid, Year Two 44,000    
Lessee, Operating Lease, Liability, to be Paid, Year Three 45,000    
Lessee, Operating Lease, Liability, to be Paid, Year Four 46,000    
Lessee, Operating Lease, Liability, to be Paid, Year Five 19,000    
Lessee, Operating Lease, Liability, to be Paid 175,000    
Lessee, Operating Lease, Liability, Undiscounted Excess Amount (13,000)    
Operating Lease, Liability 162,000 $ 165,000  
Operating Lease, Liability, Current (37,000)  
Operating Lease, Liability, Noncurrent $ 125,000