Note C - Finance Receivables, Net - Credit Quality Information for Finance Receivables (Details) - USD ($) $ in Thousands	Jul. 31, 2024	Apr. 30, 2024	Jul. 31, 2023	Oct. 31, 2022
Principle Balance	$ 1,465,259	$ 1,435,388	$ 1,440,707
Percent of Portfolio	100.00%	100.00%	100.00%	100.00%
Financial Asset, Not Past Due [Member]
Principle Balance	$ 1,155,006	$ 1,125,945	$ 1,151,275
Percent of Portfolio		78.44%	79.91%
Financial Asset, Past Due [Member]
Percent of Portfolio	78.82%
Financial Asset, 3 to 29 Days Past Due [Member]
Principle Balance	$ 259,145	$ 264,491	$ 226,600
Percent of Portfolio	17.69%	18.43%	15.73%
Financial Asset, 30 to 59 Days Past Due [Member]
Principle Balance	$ 38,035	$ 34,042	$ 48,650
Percent of Portfolio	2.60%	2.37%	3.38%
Financial Asset, 60 to 89 Days Past Due [Member]
Principle Balance	$ 7,463	$ 6,438	$ 9,294
Percent of Portfolio	0.51%	0.45%	0.64%
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Principle Balance	$ 5,610	$ 4,472	$ 4,888
Percent of Portfolio	0.38%	0.31%	0.34%