Note 8 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended			24 Months Ended
	Apr. 07, 2022	Nov. 30, 2024	Dec. 02, 2023	Dec. 03, 2022	Dec. 03, 2022
Preferred Stock, Shares Authorized (in shares)		10,045,900	10,045,900
Common Stock, Shares Authorized (in shares)		160,000,000	160,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 1	$ 1
Common Stock, Shares, Issued (in shares)		54,657,103	54,092,987
Stock Repurchased During Period, Value		$ 39,557	$ 2,567		$ 3,949
Stock Repurchased During Period, Shares (in shares)		407,400	0	0
Common Stock, Dividends, Per Share, Declared (in dollars per share)		$ 0.856	$ 0.805
The 2017 Share Repurchase Program [Member]
Stock Repurchase Program, Authorized Amount	$ 300,000
Share Repurchase Program, Period in Force (Year)	5 years
Stock Repurchased During Period, Value		$ 31,811
Stock Repurchased During Period, Shares (in shares)			0	0
Share Repurchase Program, Remaining Authorized, Amount		$ 268,000