Note 9 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Depreciation, Depletion and Amortization, Nonproduction	$ 2,291	$ 2,741
Loans Payable to Bank	445	684
Machinery and Equipment [Member]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	24,763	23,260
Property, Plant and Equipment [Member]
Depreciation, Depletion and Amortization, Nonproduction	1,319	1,285
Assets Subject to a Financial Arrangement [Member] \| Machinery and Equipment [Member]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	156	229
Loans Payable to Bank	$ 80	$ 172

Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.