Note 8 - Convertible Notes - Convertible Notes (Details) - Convertible Debt [Member] - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Long-term Debt	$ 6,721,010	$ 6,224,325
Less: current portion	6,293,650	5,185,412
Long-term portion loans payable - related party	427,360	1,038,913
Convertible Notes 1[Member]
Long-term Debt	828,203	850,519
Convertible Notes 2 [Member]
Long-term Debt	$ 5,892,807	$ 5,373,806

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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