Note 5 - Leases (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2024
Income Statement [Abstract]
Other Nonoperating Income	$ 69,000	$ 57,000	$ 147,000	$ 115,000
Lease, Cost	16,000	33,000	51,000	66,000
Operating Lease, Lease Income	$ 24,000	$ 27,000	$ 47,000	$ 55,000
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income	Other Nonoperating Income	Other Nonoperating Income	Other Nonoperating Income
Other Assets [Member]
Lessor, Cost, Contracts Asset	$ 1,000		$ 1,000		$ 2,000
General and Administrative Expense [Member]
Lease, Cost	$ 16,000	$ 33,000	$ 50,000	$ 65,000