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Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Jan. 01, 2023
Dec. 31, 2022
Retained Earnings (Accumulated Deficit) $ 45,166,018     $ 43,701,233
Tangible Asset Impairment Charges $ 0 $ 0    
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%      
Other Comprehensive Income (Loss), Tax $ (424,347) 1,320,892    
Available-for-Sale Securities [Member]        
Other Comprehensive Income (Loss), Tax $ (424,347) $ 1,320,892    
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]        
Retained Earnings (Accumulated Deficit)     $ (113,760)  
Premiums [Member] | Geographic Concentration Risk [Member] | ILLINOIS        
Concentration Risk, Percentage 23.00% 23.30%