Note 5 - Stockholders' Deficit (Details Textual)							3 Months Ended		12 Months Ended
	Sep. 19, 2023 $ / shares shares	Sep. 18, 2023 $ / shares shares	Sep. 15, 2023 USD ($) shares	Feb. 21, 2019 USD ($)	Jan. 14, 2019 USD ($) $ / shares shares	Dec. 10, 2018 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) shares	Jun. 30, 2021 shares	Jun. 30, 2023 USD ($) $ / shares shares	Jun. 30, 2022 USD ($)
Stock Issued During Period, Shares, New Issues (in shares)							0	0
Common Stock, Shares Authorized (in shares)	1,000,000,000						1,000,000,000			1,000,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares	$ 0.001						$ 0.001			$ 0.001
Mandatorily Redeemable Preferred Stock Liability | $					$ 105,000		$ 5,000			$ 105,000
Reduction Of Preferred Stock Liability, Value | $			$ 100,000
Reduction In Dividends Payable | $			$ 36,481
Mandatorily Redeemable Preferred Stock Dividends Payable | $							$ 1,824			$ 38,305
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares							$ 0.001			$ 0.001
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares)							0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)							0
Equity, Attributable to Parent | $							$ (6,489,886)	$ (8,621,054)		$ (9,856,235)	$ (8,221,987)
Shares Subscriptions and Obligations to Issue Shares [Member]
Equity, Attributable to Parent | $							$ 61,250	$ 61,250		61,250	$ 61,250
The 2% Promissory Note [Member]
Debt Instrument, Face Amount | $				$ 80,000
Debt Instrument, Interest Rate, Stated Percentage				2.00%
Debt Instrument, Convertible, Number of Equity Instruments				1,000,000
The 2% Promissory Note [Member] | Shares Subscriptions and Obligations to Issue Shares [Member]
Equity, Attributable to Parent | $										$ 20,000
Previous Chief Financial Officer [Member]
Deferred Compensation Arrangement with Individual, Shares Issued (in shares)							36,000
Deferred Compensation Arrangement with Individual, Fair Value of Shares Issued | $							$ 3,600
Director [Member]
Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance (in shares)							65,000
Deferred Compensation Arrangement with Individual, Recorded Liability | $							$ 37,650
Conversion of 2% Promissory Note Into Common Shares [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)							0		0
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number (in shares)							0
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)							0
Series B Preferred Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)					2	40
Shares Issued, Price Per Share (in dollars per share) | $ / shares					$ 2,250	$ 2,250
Proceeds from Issuance of Convertible Preferred Stock | $					$ 4,500	$ 90,000
Preferred Stock, Dividend Compounded Annually, Percentage					12.00%
Preferred Stock, Dividend Compounded Annually, Period (Year)					3 years
Convertible Preferred Stock, Shares Issued upon Conversion (in shares)					12,500
Preferred Stock, Redemption Price Per Share (in dollars per share) | $ / shares					$ 2,500
Preferred Stock, Redemption, Period (Year)					36 years
Stock Repurchased and Retired During Period, Shares (in shares)			40
Series B Preferred Stock [Member] | Minimum [Member]
Preferred Stock, Convertible, Period (Month)					12 months
Series B Preferred Stock [Member] | Maximum [Member]
Preferred Stock, Convertible, Period (Month)					36 months
Series C Preferred Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares)	1	1
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares		$ 0.001
Preferred Stock, Voting Power, Percent		51.00%