Note 4 - Balance Sheet Components - Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Raw materials	$ 36,552	$ 29,478
Work in process	142,143	130,029
Finished goods	132,345	99,910
Total	$ 311,040	$ 259,417

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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