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14. PRODUCT WARRANTIES (Tables)
12 Months Ended
May 31, 2021
Product Warranties Disclosures [Abstract]  
Liability for product warranties

Following is a summary of changes in the Company’s liability for product warranties during the fiscal years ended May 31, 2021 and 2020 (in thousands):

 

     May 31,  
    2021     2020  
             
Balance at the beginning of the year   $ 246     $ 154  
Accruals for warranties issued during the year     390       299  
Adjustment to previously existing warranty     346       --  
Consumption of reserves     (488)     (207)
                 
Balance at the end of the year   $ 494     $ 246