Note C - Changes in Finance Receivables (Details) - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Balance at beginning of period	$ 324,144	$ 293,299
Finance receivable originations	336,508	334,769
Finance receivable collections	(173,949)	(168,784)
Provision for credit losses	(106,225)	(89,453)
Losses on claims for payment protection plan	(9,815)	(7,840)
Inventory acquired in repossession and payment protection plan claims	(31,594)	(32,188)
Balance at end of period	$ 339,069	$ 329,803