Stockholders' Equity (Details)	Oct. 31, 2024 vote $ / shares shares	Apr. 30, 2024 $ / shares shares	Aug. 31, 2023 shares
Equity [Abstract]
Common stock, shares authorized (in shares)	5,000,000	5,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 2.50	$ 2.50
Votes per share | vote	1
Common stock, shares outstanding (in shares)	2,872,000	2,839,000
Number of shares authorized to be repurchased (in shares)			100,000
Remaining number of shares authorized to be repurchased (in shares)	33,809