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v3.25.2

Note 4 - Supplemental Information - Property, Plant and Equipment (Details) - USD ($) $ in Thousands | 3 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
Depreciation, Total | $ 1,404 | $ 1,404
Cost of Sales [Member] |  |
Depreciation, Total | 810 | 862
Operating Expense [Member] |  |
Depreciation, Total | $ 594 | $ 542

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