Note 6 - Leases (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2023
Lease, Cost	$ 33,000	$ 33,000	$ 66,000	$ 56,000
Operating Lease, Lease Income	27,000	31,000	55,000	65,000
Other Assets [Member]
Lessor, Cost, Contracts Asset	3,000		3,000		$ 4,000
General and Administrative Expense [Member]
Lease, Cost	$ 33,000	$ 32,000	$ 65,000	$ 54,000