Note 7 - Leases 2 (Details Textual) - USD ($)	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025
Lease, Cost	$ 111,000	$ 102,000
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense
Lease, Cost	$ 105,000	$ 100,000

Amount of lease cost recognized by lessee for lease contract.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

Name:	us-gaap_LeaseCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration