Significant Accounting Policies deferred revenue (Details) - USD ($)	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Revenue Recognition and Deferred Revenue [Abstract]
Deferred Revenue	$ 426,000	$ 333,000	$ 364,000
Deferred Revenue, Additions	717,000	692,000
Deferred Revenue, Revenue Recognized	(624,000)	(722,000)
Contract with Customer, Liability	129,000	213,000
Contract with Customer, Performance Obligation Satisfied in Previous Period	$ 315,000	$ 362,000