Note 6 - Senior Unsecured Note Payable - Related Party (Details) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Sep. 30, 2018	Oct. 04, 2019	Sep. 30, 2019
Proceeds from Unsecured Notes Payable						$ 300,000
Series F Warrants Issued						3,265,500
Relative fair value of warrants issued, Series F						$ 110,900
Series K Warrants Issued							4,000,000
Relative fair value of warrants issued, Series K							$ 227,600
Relative fair value of warrants canceled, Series F							$ 57,100
Unamortized Debt Issuance Expense		$ 25,111
Warrants issued with debt		170,500	$ 94,300
Loss on extinguishment of debt - related party	$ 0	195,611	0	$ 195,611	$ 0
Notes Payable	300,000			300,000				$ 274,889
Unamortized Debt Issuance Expense		$ 25,111
Proceeds from senior unsecured notes payable and warrants					$ 250,000
Series I Warrants Issued					3,543,600
Relative fair value of warrants issued, Series I					$ 94,300
	224,684			224,684				0
Debt Instrument, Unamortized Discount	25,316			25,316				72,634
Accrued interest - related party	173,975			173,975				83,107
Accrued interest - related party				90,868	0
Senior unsecured notes payable
								177,366
Accrued interest - related party	173,975			173,975				$ 83,107
Accrued interest - related party	$ 31,541		$ 17,009	$ 90,868	$ 45,837