Note 4 - Leases - Schedule of Balance Sheet Presentation of Operating and Finance Leases (Details) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Assets [Abstract]
Property, Plant and Equipment, Net	$ 2,763	$ 2,670
Liabilities, Current [Abstract]
Operating and Finance Leases, Liability, Current	227	316
Liabilities, Noncurrent [Abstract]
Operating and Finance Leases, Liability, Noncurrent	$ 73	$ 291
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, Plant and Equipment, Net	Property, Plant and Equipment, Net
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Operating and Finance Leases, Liability, Current	Operating and Finance Leases, Liability, Current
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Operating and Finance Leases, Liability, Current	Operating and Finance Leases, Liability, Current
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Operating and Finance Leases, Liability, Noncurrent	Operating and Finance Leases, Liability, Noncurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Operating and Finance Leases, Liability, Noncurrent	Operating and Finance Leases, Liability, Noncurrent