Note 8 - Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended	9 Months Ended
	Mar. 11, 2021	Mar. 11, 2021	Mar. 08, 2021	Sep. 24, 2022	Sep. 24, 2022	Sep. 25, 2021	Oct. 25, 2022	May 04, 2022	May 03, 2022	Dec. 25, 2021	[1]	Oct. 28, 2021
Proceeds from Issuance of Common Stock					$ 0	$ 223,119
Stock Repurchase Program, Authorized Amount												$ 70,000
Stock Repurchased During Period, Shares (in shares)				637,700	1,355,508
Stock Repurchased During Period, Value				$ 17,700	$ 38,100
Stock Repurchase Program, Remaining Authorized Repurchase Amount				$ 24,600	$ 24,600
Common Stock, Shares Authorized (in shares)				90,000,000	90,000,000			90,000,000	60,000,000	90,000,000
Subsequent Event [Member]
Stock Repurchase Program, Additional Authorized Amount							$ 70,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount							$ 94,600
Underwritten Public Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)			4,950,000
Shares Issued, Price Per Share (in dollars per share)			$ 41.00
Proceeds from Issuance of Common Stock		$ 223,100
Over-Allotment Option [Member]
Stock Issued During Period, Shares, New Issues (in shares)	742,500

[1] Derived from December 25, 2021 audited financial statements