12. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM (Details) - USD ($) $ in Thousands	Feb. 28, 2018	May 31, 2017
Customer Deposits And Deferred Revenue Short-term Details
Customer deposits	$ 2,049	$ 3,264
Deferred revenue	261	203
Total	$ 2,310	$ 3,467

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
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+ Details