Intangible assets (Details) - USD ($)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2021
Finite-Lived Intangible Assets, Net	$ 82,750		$ 102,400
Finite-lived tangible assets, accumulated impairment	0		0
Licensing Agreements [Member]
Amortized Intangible Assets Licenses	(116,250)		(96,600)
Finite-Lived Intangible Assets, Net	82,750		102,400
Finite-Lived Intangible Asset, Expected Amortization, after Year Five	4,150
Finite-Lived Intangible Assets, Gross	199,000		199,000
Finite-lived intangible assets, net of impairment	199,000		$ 199,000
Finite-Lived Intangible Asset, Expected Amortization, Year Two	$ 20,000
Licensing Agreements [Member] | Scenario, Forecast
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Two		$ 19,650
Licensing Agreements [Member] | Maximum [Member]
Finite-Lived Intangible Assets, Amortization Method	10