Note 10 - Common Stock Repurchase Program (Details Textual) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended	6 Months Ended
	Jul. 03, 2021	Jul. 03, 2021	Feb. 19, 2021
Treasury Stock, Value, Acquired, Cost Method	$ 25,111	$ 40,113
2021 Repurchase Program [Member]
Stock Repurchase Program, Authorized Amount			$ 60,000
Treasury Stock, Shares, Acquired (in shares)	0.5
Treasury Stock, Value, Acquired, Cost Method	$ 25,100
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)	$ 48.07
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 19,900	$ 19,900