2. SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($) $ in Thousands	9 Months Ended
Aug. 25, 2018	Aug. 26, 2017	Nov. 30, 2017
Accounting Policies [Abstract]
Short term investments maturity date more than 90 days	$ 2,052		$ 2,031
Effective income tax rate	(28.00%)	14.00%
Decrease in estimated income taxes due to the Tax Act	$ (52)

Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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-Name Accounting Standards Codification
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