Note 4 - Balance Sheet Components - Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022
Prepaid wafer purchase	$ 50,000	$ 50,000	$ 0
RSU tax withholding proceeds receivable	15,997		14,480
Prepaid expenses	9,719		11,045
Accrued interest receivable	3,537		8,752
Other	10,702		8,465
Total	$ 89,955		$ 42,742