Note 5 - Supplemental Balance Sheet Information - Components of Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Raw materials	$ 23,673	$ 21,660
Work in process	3,521	4,227
Finished goods	9,186	7,302
Total	$ 36,380	$ 33,189

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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