XML 38 R28.htm IDEA: XBRL DOCUMENT v3.7.0.1
11. LONG-TERM DEBT (Tables)
9 Months Ended
Feb. 28, 2017
Long-term Debt, Unclassified [Abstract]  
Long-term debt, net of debt issuance costs

Long-term debt, net of debt issuance costs (in thousands):

 

   February 28,  May 31,
   2017  2016
Principal  $6,110   $6,110 
Unamortized debt issuance costs   (15)   (148)
   $6,095   $5,962