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Note 1 - Summary of Significant Accounting Policies - Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Raw materials $ 18,492 $ 14,865
Work in process 1,678 969
Finished goods 562 242
Reserves (1,298) (2,159)
Total $ 19,434 $ 13,917