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Note 15 - Related Party Transactions (Details Textual) - Not-for-profit Corporation [Member]
1 Months Ended 12 Months Ended
Feb. 28, 2019
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Aug. 31, 2016
ft²
Operating Leases, Income Statement, Lease Revenue, Total   $ 34,720 $ 47,146  
Lease Term August 2016 Through December 2018 [Member]        
Rent Amount Per Square Foot Per Month, Maximum 10      
Area of Real Estate Property | ft²       2,130
Annual Rent $ 18,170      
Operating Leases, Maximum Total Lease Commitment 36,340      
Payments for Tenant Improvements $ 3,500      
Commitments, Fair Value Disclosure   $ 18,170    
Lessor, Operating Lease, Renewal Term   2 years    
Operating Leases, Additional Commitment   $ 72,680