Note 4 - Deferred Compensation (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Jun. 30, 2020
Deferred Compensation Liability, Current, Total	$ 1,012,159	$ 652,367	$ 1,012,159	$ 652,367		$ 778,217
Interest Rate on Deferred Compensation					4.00%
Deferred Compensation Conversion Days (Day)			5 days
Deferred Compensation Consecutive Trading Days (Day)			10 days
Interest Expense, Total	137,911	103,084	$ 545,422	363,424
Interest Expense on Deferred Compensation Obligation [Member]
Interest Expense, Total			19,897	18,498
Interest Expense, Related Party			8,645	10,301
Chief Executive Officer [Member]
Deferred Compensation Liability, Current, Total	358,367	97,946	358,367	97,946
Deferred Compensation, Convertible to Common Stock	$ 300,000		$ 300,000
Deferred Compensation, Convertible to Common Stock, Price Per Share (in dollars per share)	$ 0.75		$ 0.75
President [Member]
Deferred Compensation Liability, Current, Total	$ 380	36,180	$ 380	36,180
Deferred Compensation, Converted to Units, Amount			$ 127,660
Deferred Compensation, Loan Payable, and Accounts Payable Converted to Units, Price Per Unit (in dollars per share)	$ 0.50		$ 0.50
Consultants [Member]
Deferred Compensation Liability, Current, Total	$ 580,912	$ 445,741	$ 580,912	$ 445,741
Interest Rate on Deferred Compensation	3.00%		3.00%
Former Employee [Member]
Deferred Compensation Liability, Current, Total	$ 72,500		$ 72,500