Note 8 - Bank Debt - Summary of Loan Balances (Details) - Bank Debt [Member] - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Total Bank Debt	$ 17,798,482	$ 13,603,575
Less: current portion	1,333,333	1,333,333
Non-current bank debt	16,465,149	12,270,242
Less: unamortized debt costs	160,007	95,814
Net non-current bank debt	16,305,142	12,174,428
Term Debt [Member]
Total Bank Debt	2,111,111	2,777,778
Line of Credit [Member]
Total Bank Debt	$ 15,687,371	$ 10,825,797