Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Capitalization and Equity Structure - Schedule of Assumptions used in Black-Scholes Model to Measure Fair Value (Details)

v3.23.2
Note 12 - Capitalization and Equity Structure - Schedule of Assumptions used in Black-Scholes Model to Measure Fair Value (Details)
Jun. 30, 2023
Dec. 31, 2022
A2021 Warrants [Member] | Measurement Input, Share Price [Member]    
Warrant, measurement input 1.43 1.19
A2021 Warrants [Member] | Measurement Input, Conversion Price [Member]    
Warrant, measurement input 12.81 12.81
A2021 Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]    
Warrant, measurement input 0.0464 0.0421
A2021 Warrants [Member] | Measurement Input, Expected Term [Member]    
Warrant, measurement input 2.61 3.11
A2021 Warrants [Member] | Measurement Input, Price Volatility [Member]    
Warrant, measurement input 0.726 0.996
June 2020 Investor Warrants [Member] | Measurement Input, Share Price [Member]    
Warrant, measurement input 1.43 1.19
June 2020 Investor Warrants [Member] | Measurement Input, Conversion Price [Member]    
Warrant, measurement input 5.18 5.18
June 2020 Investor Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]    
Warrant, measurement input 0.0470 0.0423
June 2020 Investor Warrants [Member] | Measurement Input, Expected Term [Member]    
Warrant, measurement input 2.45 2.94
June 2020 Investor Warrants [Member] | Measurement Input, Price Volatility [Member]    
Warrant, measurement input 0.700 0.996
June 2020 Placement Agent Warrants [Member] | Measurement Input, Share Price [Member]    
Warrant, measurement input 1.43 1.19
June 2020 Placement Agent Warrants [Member] | Measurement Input, Conversion Price [Member]    
Warrant, measurement input 5.64 5.64
June 2020 Placement Agent Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]    
Warrant, measurement input 0.0490 0.0433
June 2020 Placement Agent Warrants [Member] | Measurement Input, Expected Term [Member]    
Warrant, measurement input 1.95 2.44
June 2020 Placement Agent Warrants [Member] | Measurement Input, Price Volatility [Member]    
Warrant, measurement input 0.625 0.735
December 2019 Warrants [Member] | Measurement Input, Share Price [Member]    
Warrant, measurement input 1.43 1.19
December 2019 Warrants [Member] | Measurement Input, Conversion Price [Member]    
Warrant, measurement input 8.10 8.10
December 2019 Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]    
Warrant, measurement input 0.0489 0.0432
December 2019 Warrants [Member] | Measurement Input, Expected Term [Member]    
Warrant, measurement input 1.97 2.47
December 2019 Warrants [Member] | Measurement Input, Price Volatility [Member]    
Warrant, measurement input 0.622 0.733
December 2019 Placement Agent Warrants [Member] | Measurement Input, Share Price [Member]    
Warrant, measurement input 1.43 1.19
December 2019 Placement Agent Warrants [Member] | Measurement Input, Conversion Price [Member]    
Warrant, measurement input 8.44 8.44
December 2019 Placement Agent Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]    
Warrant, measurement input 0.0515 0.0442
December 2019 Placement Agent Warrants [Member] | Measurement Input, Expected Term [Member]    
Warrant, measurement input 1.47 1.97
December 2019 Placement Agent Warrants [Member] | Measurement Input, Price Volatility [Member]    
Warrant, measurement input 0.655 0.718
May 2019 Warrants [Member] | Measurement Input, Share Price [Member]    
Warrant, measurement input 1.43 1.19
May 2019 Warrants [Member] | Measurement Input, Conversion Price [Member]    
Warrant, measurement input 3.52 3.52
May 2019 Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]    
Warrant, measurement input 0.0540 0.046
May 2019 Warrants [Member] | Measurement Input, Expected Term [Member]    
Warrant, measurement input 0.9 1.4
May 2019 Warrants [Member] | Measurement Input, Price Volatility [Member]    
Warrant, measurement input 0.621 0.745