Annual report pursuant to Section 13 and 15(d)

Note 12 - Common Stock - Assumptions (Details)

v3.20.4
Note 12 - Common Stock - Assumptions (Details) - Warrant [Member]
Apr. 15, 2020
Apr. 14, 2020
Measurement Input, Exercise Price [Member]    
Warrants and Rights Outstanding, Measurement Input 6.1 15.5
Measurement Input, Share Price [Member]    
Warrants and Rights Outstanding, Measurement Input 6.3 6.3
Measurement Input, Expected Term [Member]    
Warrants and Rights Outstanding, Measurement Input 2.8 2.8
Measurement Input, Price Volatility [Member]    
Warrants and Rights Outstanding, Measurement Input 0.97 0.97
Measurement Input, Risk Free Interest Rate [Member]    
Warrants and Rights Outstanding, Measurement Input 0.0027 0.0027
Measurement Input, Expected Dividend Rate [Member]    
Warrants and Rights Outstanding, Measurement Input 0 0