Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Leases (Details Textual)

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Note 8 - Leases (Details Textual)
3 Months Ended
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Lessee, Finance Lease, Number of Leases 1  
Lessee, Operating Lease, Number of Leases 2  
Sublease Income $ 132,000 $ 108,000
Operating Lease, Right-of-Use Asset 590,000 1,080,000.00
Operating Lease, Liability, Total 690,000 $ 1,250,000
Finance Lease, Liability, Current 6,000  
Finance Lease, Liability, Noncurrent $ 18,000  
Maximum [Member]    
Lessee, Operating Lease, Term of Contract (Month) 76 months  
Minimum [Member]    
Lessee, Operating Lease, Term of Contract (Month) 42 months