Note 9 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Jun. 30, 2025
Property, plant and equipment, gross	$ 39,129	$ 37,581
Less: accumulated depreciation	(30,260)	(29,350)
Less: accumulated amortization of equipment under finance leases *	0	(133)
Total accumulated depreciation	(30,260)	(29,483)
Property, plant and equipment before currency translation effect, net	8,869	8,098
Currency translation effect	(2,271)	(2,077)
Property, plant and equipment, net	6,598	6,021
Building and Building Improvements [Member]
Property, plant, and equipment	$ 5,330	5,260
Building and Building Improvements [Member] \| Minimum [Member]
Useful life (Year)	3 years
Building and Building Improvements [Member] \| Maximum [Member]
Useful life (Year)	50 years
Leasehold Improvements [Member]
Property, plant, and equipment	$ 7,856	7,446
Leasehold Improvements [Member] \| Minimum [Member]
Useful life (Year)	3 years
Leasehold Improvements [Member] \| Maximum [Member]
Useful life (Year)	5 years
Machinery and Equipment [Member]
Property, plant, and equipment	$ 24,763	23,260
Machinery and Equipment [Member] \| Minimum [Member]
Useful life (Year)	3 years
Machinery and Equipment [Member] \| Maximum [Member]
Useful life (Year)	7 years
Furniture and Fixtures [Member]
Property, plant, and equipment	$ 1,180	1,205
Furniture and Fixtures [Member] \| Minimum [Member]
Useful life (Year)	3 years
Furniture and Fixtures [Member] \| Maximum [Member]
Useful life (Year)	5 years
Equipment Under Finance Lease [Member]
Equipment under finance leases	$ 0	$ 410
Equipment Under Finance Lease [Member] \| Minimum [Member]
Useful life (Year)	3 years
Equipment Under Finance Lease [Member] \| Maximum [Member]
Useful life (Year)	5 years

The monetary effect derived from currency translation.

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Amount, before currency translation effect and accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

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The amount of property, plant, and equipment after accumulated depreciation and before currency translation.

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Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

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Amount of accumulated amortization of right-of-use asset from finance lease.

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Amount, before accumulated amortization, of right-of-use asset from finance lease.

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Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

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Useful life of property, plant, and equipment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

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