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Note 13 - Other Financial Statement Information - Schedule of Components of Inventory (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Raw materials | $ 353 | $ 374
Work in process | 14 | 8
Finished goods | 0 | 0
Total gross inventory | 367 | 382
Reserve for excess and obsolete inventory | (89) | (85)
Inventories, net | $ 278 | $ 297

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