Condensed Consolidated Balance Sheets (Parentheticals) - $ / shares	Sep. 30, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	17,367,942	17,673,607
Common stock, shares outstanding (in shares)	17,367,942	17,673,607