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Cash and Cash Equivalents
3 Months Ended
Aug. 31, 2020
Accounting Policies [Abstract]  
Cash and Cash Equivalents
3.Cash and Cash Equivalents

The Company considers short-term highly liquid investments with maturities of three months or less at the time of purchase to be cash equivalents. Cash and cash equivalents were comprised of the following as of August 31, 2020 and May 31, 2020:


   August 31,   May 31, 
   2020   2020 
         
Cash in banks  $10,749,923   $9,677,848 
Money market funds   52,439    52,174 
   $10,802,362   $9,730,022