Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares shares in Thousands	Mar. 30, 2024	Dec. 30, 2023	[1]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	1,000	1,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	90,000	90,000
Common stock, shares issued (in shares)	49,429	49,429
Common stock, shares outstanding (in shares)	49,429	49,429
Treasury Stock, Shares (in shares)	2,351	2,253

[1] Derived from December 30, 2023 audited financial statements