Note H - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2019	Apr. 30, 2018
Deferred income tax liabilities related to:
Finance receivables	$ 19,254	$ 17,764
Goodwill	76	61
Total	19,330	17,825
Deferred income tax assets related to:
Accrued liabilities	1,638	1,894
Inventory	127	120
Share based compensation	2,186	2,144
Property and equipment	76	82
State net operating loss	29	69
Deferred revenue	1,015	958
Total	5,071	5,267
Deferred income tax liabilities, net	$ 14,259	$ 12,558