SEGMENT AND GEOGRAPHIC INFORMATION (Details 1) - USD ($) $ in Thousands		May 27, 2017	May 28, 2016	May 30, 2015	May 31, 2014
Segment Reporting [Abstract]
Segment assets		$ 80,105	$ 84,863
Cash and cash equivalents		55,327	60,454	$ 74,535	$ 102,752
Investments - current		6,429	2,268
Other current assets	[1]	3,330	3,143
Net property, plant and equipment		8,752	8,333
Investments - non-current		2,419	7,799
Other assets - non-current deferred income taxes		1,102	1,270
Total assets		$ 157,464	$ 168,130

[1] Other current assets include miscellaneous receivables, prepaid expenses, and current deferred income taxes.