Note C - Finance Receivables, Net - Changes in Finance Receivables (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2017	Jul. 31, 2016
Balance	$ 357,161	$ 334,793
Finance receivable originations	118,953	120,848
Finance receivable collections	(58,934)	(58,036)
Provision for credit losses	(34,160)	(33,381)
Losses on claims for payment protection plan	(3,938)	(3,107)
Inventory acquired in repossession and payment protection plan claims	(9,096)	(8,569)
Balance	$ 369,986	$ 352,548