Note 4 - Balance Sheet Components - Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Dividends and dividend equivalents	$ 40,072	$ 32,364
Warranty	23,833	20,989
Stock rotation and sales returns	12,492	5,748
Customer prepayments	6,982	4,300
Income tax payable	18,816	4,921
Other	8,892	12,960
Total	$ 111,087	$ 81,282