17. SELECTED QUARTERLY CONSOLIDATED FINANCIAL DATA (Tables)

12 Months Ended

May 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Consolidated Financial Data (unaudited)

    The following tables (presented in thousands, except per share data) sets forth selected unaudited condensed consolidated statements of operations data for each of the four quarters of the fiscal years ended May 31, 2018 and 2017. The unaudited quarterly information has been prepared on the same basis as the annual information presented elsewhere herein and, in the Company’s opinion, includes all adjustments (consisting only of normal recurring entries) necessary for a fair statement of the information for the quarters presented. The operating results for any quarter are not necessarily indicative of results for any future period and should be read in conjunction with the audited consolidated financial statements of the Company’s and the notes thereto included elsewhere herein.

	Three Months Ended
	Aug. 31,		Nov. 30,		Feb. 28,		May 31,
	2017		2017		2018		2018
Net sales	$	6,970	$	7,923	$	7,393	$	7,269
Gross profit	$	2,918	$	3,131	$	3,176	$	3,161
Net income	$	10	$	60	$	267	$	191
Net income per share basic and diluted	$	0.00	$	0.00	$	0.01	$	0.01

	Three Months Ended
	Aug. 31,			Nov. 30,			Feb. 28,			May 31,
	2016			2016			2017			2017
Net sales	$	5,318		$	4,216		$	2,681		$	6,683
Gross profit	$	2,206		$	1,463		$	503		$	2,608
Net loss	$	(755	)	$	(1,452	)	$	(2,651	)	$	(795	)
Net loss per share basic and diluted	$	(0.06	)	$	(0.09	)	$	(0.16	)	$	(0.04	)