Note 1 - Basis of Presentation (Details Textual) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Retained Earnings (Accumulated Deficit), Ending Balance	$ (40,795,525)	$ (40,448,481)

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant