Note 10 - Convertible Note - Key Assumptions Used to Value the Combined Embedded Derivative (Details)	Sep. 30, 2019 yr	Mar. 26, 2019 yr
Measurement Input, Share Price [Member]
Derivative Liability, Measurement Input	0.0061	0.0128
Measurement Input, Price Volatility [Member]
Derivative Liability, Measurement Input	1.791	0.938
Measurement Input, Risk Free Interest Rate [Member]
Derivative Liability, Measurement Input	0.0175	0.0234
Measurement Input, Expected Term [Member]
Derivative Liability, Measurement Input	0.99	1.5