Note 3 - Leases - Schedule of Balance Sheet Presentation of Operating and Finance Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023
Assets:
Operating lease assets	$ 226	$ 262
Total lease assets	679	746
Liabilities:
Operating lease obligations	155
Financing lease obligations	157
Financing lease obligations	131	161
Total lease liabilities	540	607
Property and Equipment, Net [Member]
Assets:
Financing lease assets	453	484
Lease Liabilities, Current [Member]
Liabilities:
Operating lease obligations	155	148
Financing lease obligations	157	168
Lease Liabilities, Noncurrent [Member]
Liabilities:
Operating lease obligations	97	$ 130
Financing lease obligations	$ 131