Note 11 - Related Party Transactions (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Director and Officer [Member]
Due to Related Parties, Total	$ 0
Director and Officer 1 [Member]
Due to Related Parties, Total			$ 0
Payment for Directors Fees	43,000	$ 33,000
Director and Officer 2 [Member]
Due to Related Parties, Total	4,484		1,647
Director and Officer 3 [Member]
Due to Related Parties, Total	0		0
Payment for Directors Fees	19,533	20,874
Director and Officer 4 [Member]
Due to Related Parties, Total	0		0
Payment for Directors Fees	32,500	22,500
Independent Director [Member]
Due to Related Parties, Total	2,500		1,500
Payment for Directors Fees	1,000	1,500
Officer [Member]
Due to Related Parties, Total	91		7,317
Payment for Directors Fees	42,928	$ 30,003
Company of Which a Current Director of the Reporting Entity is a Director [Member]
Due from Related Parties, Total	$ 4,376		$ 2,305