Note 9 - Convertible Notes - Convertible Notes (Details) - Convertible Debt [Member] - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Long-term Debt	$ 4,242,221	$ 3.670172
Less current portion	2,001,702	1,461,979
Loans and convertible notes payable, less current portion	2,240,519	2,208,193
Convertible Payable 1 [Member]
Long-term Debt	856,815	880,567
Convertible Payable 2 [Member]
Long-term Debt	$ 3,385,406	$ 2,789,605

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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