Note 6 - Leases (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Jun. 30, 2023
Lease, Cost	$ 34,000	$ 33,000	$ 101,000	$ 89,000
Operating Lease, Lease Income	23,000	31,000	78,000	96,000
Other Assets [Member]
Lessor, Cost, Contracts Asset	3,000		3,000		$ 4,000
General and Administrative Expense [Member]
Lease, Cost	$ 33,000	$ 32,000	$ 99,000	$ 86,000