Financial Statements and Supplementary Data (Unaudited) (Tables)

12 Months Ended

Apr. 30, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Results

The following schedule presents results for each quarter in the years ended April 30, 2018 and 2017 (in thousands, except per share amounts):

	Total revenues		Gross margin		Operating income		Net earnings		Diluted earnings per share*
Quarter ended:
July 31, 2017	$	26,886	$	15,225	$	3,622	$	2,725	$	0.09
October 31, 2017		26,337		14,006		3,242		2,480		0.08
January 31, 2018		30,117		17,046		4,204		5,580		0.18
April 30, 2018		29,363		16,426		2,463		1,268		0.04
Year ended April 30, 2018	$	112,703	$	62,703	$	13,531	$	12,053	$	0.40
Quarter ended:
July 31, 2016	$	27,433	$	13,796	$	1,646	$	1,688	$	0.06
October 31, 2016		26,146		13,018		708		412		0.01
January 31, 2017		26,441		14,049		2,455		2,243		0.08
April 30, 2017		26,266		14,340		2,957		10,278		0.34
Year ended April 30, 2017	$	106,286	$	55,202	$	7,766	$	14,621	$	0.49

* Table may contain rounding