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Note 12 - Income Tax - Provision for Income Taxes (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Current        
Federal     $ 2,032,751 $ 1,812,710
State     971,936 696,154
Deferred        
Federal     (2,045,199) (1,246,828)
State     (321,424) (520,998)
Provision for income taxes $ 229,836 $ 86,446 $ 638,064 $ 741,038