Note 3 - Revenue From Contracts With Customers - Contract Balance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022
Contract assets, balance	$ 5,672	$ 5,611
Revenues recorded during the period	15,848	15,587
Transferred to Accounts receivable or collected	(14,173)	(15,526)
Contract assets, balance	7,347	5,672
Contract liabilities as of January 2, 2021	4,768	3,068
Accruals for estimated future stock rotation and scrap returns	6,142	4,613
Less: Release of accruals for recognized stock rotation and scrap returns	(6,055)	(2,913)
Prepaid customer deposit	12,811
Contract liabilities as of January 1, 2022	$ 17,666	$ 4,768