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13. SEGMENT INFORMATION
 9 Months Ended
Feb. 28, 2019
Segment Reporting [Abstract]  
13. SEGMENT INFORMATION

13. SEGMENT INFORMATION

 

    The Company has only one reportable segment. The information for revenue category by type, product line, geography and timing of revenue recognition, is summarized in Note “3. REVENUE.”

 

  Property and equipment information is based on the physical location of the assets. The following table presents property and equipment information for geographic areas (in thousands):

 

    February 28,     May 31,  
    2019     2018  
United States   $ 934     $ 1,156  
Asia     39       40  
Europe     2       7  
    $ 975     $ 1,203  

 

    There were no revenues through distributors for the three and nine months ended February 28, 2019 and 2018.

 

    The Company’s Japanese and German subsidiaries primarily comprise the foreign operations. Substantially all of the sales of the subsidiaries are made to unaffiliated Japanese or European customers. Net sales from outside the United States include those of Aehr Test Systems Japan K.K. and Aehr Test Systems GmbH.

 

    Sales to the Company’s five largest customers accounted for approximately 90% and 81% of its net sales in the three and nine months ended February 28, 2019, respectively. Four customers accounted for approximately 27%, 25%, 22% and 13% of the Company’s net sales in the three months ended February 28, 2019. Four customers accounted for approximately 31%, 18%, 16% and 12% of the Company’s net sales in the nine months ended February 28, 2019. Sales to the Company’s five largest customers accounted for approximately 93% and 93% of its net sales in the three and nine months ended February 28, 2018, respectively. Four customers accounted for approximately 31%, 25%, 16% and 12% of the Company’s net sales in the three months ended February 28, 2018. Three customers accounted for approximately 35%, 34% and 13% of the Company’s net sales in the nine months ended February 28, 2018. No other customers represented more than 10% of the Company’s net sales in the three and nine months ended February 28, 2019 and 2018.