Note 5 - Leases (Details Textual) - USD ($)	3 Months Ended			9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022
Statement [Line Items]
Lease, Cost	$ 33,000	$ 41,000		$ 89,000	$ 130,000
Operating Lease, Lease Income	31,000	29,000		96,000	$ 84,000
Other Assets [Member]
Statement [Line Items]
Lessor, Cost, Contracts Asset	5,000			5,000		$ 9,000
Continuing Operations [Member]
Statement [Line Items]
Lease, Cost	$ 32,000	$ 41,000	$ 130,000	$ 86,000