Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2017	Oct. 31, 2016
Revenues:
Sales	$ 130,427	$ 133,170	$ 258,701	$ 262,854
Interest and other income	18,691	17,040	36,835	33,196
Total revenue	149,118	150,210	295,536	296,050
Costs and expenses:
Cost of sales	75,623	77,997	150,829	153,510
Selling, general and administrative	23,727	22,654	47,592	45,822
Provision for credit losses	38,746	39,441	72,906	72,822
Interest expense	1,324	1,036	2,496	1,980
Depreciation and amortization	1,108	1,080	2,187	2,176
(Gain) loss on disposal of property and equipment	57	(1)	104	399
Total costs and expenses	140,585	142,207	276,114	276,709
Income before taxes	8,533	8,003	19,422	19,341
Provision for income taxes	2,564	2,985	6,461	7,214
Net income	5,969	5,018	12,961	12,127
Less: Dividends on mandatorily redeemable preferred stock	(10)	(10)	(20)	(20)
Net income attributable to common stockholders	$ 5,959	$ 5,008	$ 12,941	$ 12,107
Earnings per share:
Basic (in dollars per share)	$ 0.82	$ 0.64	$ 1.74	$ 1.53
Diluted (in dollars per share)	$ 0.79	$ 0.62	$ 1.69	$ 1.48
Weighted average number of shares used in calculation:
Basic (in shares)	7,354,499	7,833,061	7,451,673	7,890,993
Diluted (in shares)	7,555,026	8,136,961	7,661,668	8,161,019