Note 9 - Stockholders' Equity (Deficit) (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

	Assumptions
Common stock value	$	2.25
Expected life (in years)		3
Risk-free interest rate		0.28	%
Expected dividend yields		0	%
Volatility		126	%