Note 1 - Basis of Presentation - Restatement of Consolidated Financial Statements (Details) (Parentheticals) - USD ($)	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Convertible debt, noncurrent unamortized discount	$ 0	$ 17,396	$ 29,586
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized (in shares)	10,000,000	10,000,000	10,000,000
Preferred Stock, Shares Issued (in shares)	0	0	0
Preferred Stock, Shares Outstanding (in shares)	0	0	0
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001	$ 0.0001	$ 0.0001
Common Stock, Shares Authorized (in shares)	65,000,000	65,000,000	65,000,000
Common Stock, Shares, Issued (in shares)	17,988,428	17,822,428	17,667,428
Common Stock, Shares, Outstanding (in shares)	17,988,428	17,822,428	17,667,428