Financial Statements and Supplementary Data (Unaudited) (Tables)

12 Months Ended

Apr. 30, 2020

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Results

The following schedule presents results for each quarter in the years ended April 30, 2020 and 2019 (in thousands, except per share amounts):

	Total revenues		Gross margin		Operating income		Net earnings		Diluted earnings per share*
Quarter ended:
July 31, 2019	$	27,383	$	14,622	$	797	$	1,152	$	0.04
October 31, 2019	28,210		15,186		843		1,759		0.05
January 31, 2020	30,600		17,442		2,819		3,286		0.10
April 30, 2020	29,273		15,908		1,589		545		0.02
Year ended April 30, 2020	$	115,466	$	63,158	$	6,048	$	6,742	$	0.21
Quarter ended:
July 31, 2018	$	27,399	$	13,752	$	607	$	1,385	$	0.04
October 31, 2018	28,033		14,667		1,526		1,243		0.04
January 31, 2019	27,003		14,039		2,130		2,301		0.07
April 30, 2019	26,271		14,282		1,013		1,874		0.06
Year ended April 30, 2019	$	108,706	$	56,740	$	5,276	$	6,803	$	0.22

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* Table may contain rounding