8. CUSTOMER DEPOSITS AND DEFERRED REVENUE (Details) - USD ($) $ in Thousands	May 31, 2017	May 31, 2016
Customer Deposits And Deferred Revenue Details
Customer deposits	$ 3,264	$ 540
Deferred revenue	203	1,174
Customer deposits and deferred revenue	$ 3,467	$ 1,714

Total carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue or other forms of income in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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+ Details