Note 11 - Subseqent Events (Details Textual) - USD ($)	Dec. 04, 2020	Oct. 12, 2020	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
Notes Payable, Current, Total			$ 150,250		$ 385,000
Notes Payable, Noncurrent, Total			3,578,517		3,117,397
Accredited Investors [Member] | Convertible Debt [Member] | February 2018 Convertible Notes [Member]
Notes Payable, Current, Total			150,000	$ 150,000	$ 190,000
Accredited Investors [Member] | Convertible Debt [Member] | February 2018 Convertible Notes [Member] | Subsequent Event [Member]
Notes Payable, Current, Total		$ 150,000
Unrelated Party [Member] | Promissory Notes [Member]
Notes Payable, Noncurrent, Total			$ 4,000,000
Unrelated Party [Member] | Promissory Notes [Member] | Subsequent Event [Member]
Notes Payable, Noncurrent, Total	$ 4,000,000
Increase (Decrease) In Notes Payable	$ 500,000