Note 8 - Bank Debt - Summary of Loan Balances (Details) - Bank Debt [Member] - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Total Bank Debt	$ 15,819,316	$ 7,834,106
Less: current portion	1,333,333	1,333,333
Non-current bank debt	14,485,983	6,500,773
Less: unamortized debt costs	105,763	124,179
Net non-current bank debt	14,380,220	6,376,594
Term Debt [Member]
Total Bank Debt	3,111,111	4,111,111
Line of Credit [Member]
Total Bank Debt	$ 12,708,205	$ 3,722,995