Income Taxes - Provision for income taxes (Details) - USD ($)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current tax expense	$ 74,704	$ 19,300
Deferred tax expense	362,678	458,420
Income tax expense (benefit)	437,382	477,720
Valuation allowance	$ 0	$ 0