Note 8 - Derivative Liability (Details Textual)	6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Gain on Derivative Instruments, Pretax	$ 49,874	$ 470,189
Convertible Credit Line Payable, Related Party [Member] | Measurement Input, Share Price [Member]
Embedded Derivative Liability, Measurement Input	1	1
Convertible Credit Line Payable, Related Party [Member] | Measurement Input, Price Volatility [Member]
Embedded Derivative Liability, Measurement Input	0.37	1.29
Convertible Credit Line Payable, Related Party [Member] | Measurement Input, Discount Rate [Member]
Embedded Derivative Liability, Measurement Input	0.0016	1.75