Note 3 - Summary of Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Accounting Standards Update and Change in Accounting Principle [Table Text Block]

	Ending Balance as of December 31, 2020			ASU 2020-06 Adjustments			Beginning Balance as of January 1, 2021
Warrant liability	$	13,003,075		$	(13,003,075	)	$	-
Additional paid-in capital		129,887,146			9,731,714			139,618,860
Accumulated deficit		(111,898,992	)		3,271,361			(108,627,631	)