7. SEGMENT INFORMATION (Tables)

9 Months Ended

Feb. 29, 2016

Segment Reporting [Abstract]

Company's operations in different geographic areas

    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 February 29, 2016:
Net sales	$	1,235	$	380	$	62	$	1,677
Property and equipment, net		1,200		38		13		1,251
Nine months ended February 29, 2016:
Net sales	$	2,460	$	9,529	$	941	$	12,930
Property and equipment, net		1,200		38		13		1,251
Three months ended February 28, 2015:
Net sales	$	684	$	979	$	364	$	2,027
Property and equipment, net		455		35		12		502
Nine months ended February 28, 2015:
Net sales	$	3,054	$	3,845	$	1,301	$	8,200
Property and equipment, net		455		35		12		502