Note M - Acquisitions (Details Textual) - USD ($)	Jun. 03, 2024	Oct. 31, 2024	Apr. 30, 2024
Goodwill		$ 22,900,000	$ 14,400,000
Texas Auto Center [Member]
Business Combination, Consideration Transferred	$ 13,500,000
Contingent Consideration	3,500,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	0
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	15,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Working Capital	100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	5,000,000
Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Lease Obligation	7,400,000
Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Right of Use Asset	7,400,000
Goodwill	$ 8,500,000