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8. PRODUCT WARRANTIES (Tables)
 9 Months Ended
Feb. 28, 2014
Product Warranties Tables  
Liability for product warranties

Following is a summary of changes in the Company's liability for product warranties during the three and nine months ended February 28, 2014 and 2013 (in thousands):

 

    Three Months Ended     Nine Months Ended  
    February 28,     February 28,  
    2014     2013     2014     2013  
                         
                         
Balance at the beginning of the period   $ 208     $ 174     $ 222     $ 91  
Accruals for warranties issued during the period     34       162       188       412  
Settlement made during the period (in cash or in kind)     (46 )      (139 )      (214 )      (306 ) 
Balance at the end of the period   $ 196     $ 197     $ 196     $ 197