XML 53 R43.htm IDEA: XBRL DOCUMENT v3.8.0.1
10. CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM (Details) - USD ($)
$ in Thousands
Aug. 31, 2017
May 31, 2017
Customer Deposits And Deferred Revenue Short-term Details    
Customer deposits $ 2,606 $ 3,264
Deferred revenue 428 203
Total $ 3,034 $ 3,467