Note 7 - Bank Debt - Summary of Loan Balances (Details) - Bank Debt [Member] - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Total Bank Debt	$ 15,732,480	$ 7,834,106
Less: current portion	1,333,333	1,333,333
Non-current bank debt	14,399,147	6,500,773
Less: unamortized debt costs	115,730	124,179
Net non-current bank debt	14,283,417	6,376,594
Term Debt [Member]
Total Bank Debt	3,444,444	4,111,111
Line of Credit [Member]
Total Bank Debt	$ 12,288,036	$ 3,722,995