Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jan. 31, 2024	Jul. 31, 2023
Statement of Financial Position [Abstract]
Common stock par value	$ 1	$ 1
Common stock, shares authorized	5,000,000	5,000,000
Common stock, shares issued	2,178,297	2,178,297
Common stock held in treasury, at cost	162,517	162,517