7. SEGMENT INFORMATION

3 Months Ended

Aug. 31, 2017

Segment Reporting [Abstract]

7. SEGMENT INFORMATION

7. SEGMENT INFORMATION

    The Company operates in one reportable segment: the design, manufacture and marketing of advanced test and burn-in products to the semiconductor manufacturing industry.

    The following presents information about the Company’s operations in different geographic areas. Net sales are based upon ship-to location (in thousands).

	United
	States		Asia		Europe		Total
Three months ended August 31, 2017:
Net sales	$	1,290	$	5,660	$	20	$	6,970
Property and equipment, net		1,089		39		12		1,140
Three months ended August 31, 2016:
Net sales	$	3,164	$	1,910	$	244	$	5,318
Property and equipment, net		733		42		14		789

    The Company’s Japanese and German subsidiaries primarily comprise the foreign operations. Substantially all of the sales of the subsidiaries are made to unaffiliated Japanese or European customers. Net sales from outside the United States include those of Aehr Test Systems Japan K.K. and Aehr Test Systems GmbH.

    Sales to the Company’s five largest customers accounted for approximately 99% and 93% of its net sales for the three months ended August 31, 2017 and 2016, respectively. Two customers accounted for approximately 54% and 35% of the Company’s net sales in the three months ended August 31, 2017. Three customers accounted for approximately 42%, 27% and 17% of the Company’s net sales in the three months ended August 31, 2016. No other customers represented more than 10% of the Company's net sales for either of the three months ended August 31, 2017 and 2016.