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Note 8 - Notes Payable - Notes Payable (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Long-term debt, gross $ 9,109,098 $ 10,082,549
Less: deferred loan costs (160,469) (138,944)
Subtotal 8,948,629 9,943,605
Less: current portion (520,397) (1,330,018)
Long term debt 8,428,232 8,613,587
RBL Capital Group, LLC [Member]    
Long-term debt, gross 8,949,199 9,431,157
SBA Loans [Member]    
Long-term debt, gross 159,899 159,899
Paycheck Protection Program CARES Act [Member]    
Long-term debt, gross $ 0 $ 491,493