Significant Accounting Policies deferred revenue (Details) - USD ($)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Revenue Recognition and Deferred Revenue [Abstract]
Deferred Revenue	$ 333,000	$ 364,000	$ 516,000
Deferred Revenue, Additions	692,000	772,000
Deferred Revenue, Revenue Recognized	(723,000)	$ (924,000)
Contract with Customer, Liability	$ 213,000