XML 21 R10.htm IDEA: XBRL DOCUMENT v3.20.4
Cash and Cash Equivalents
6 Months Ended
Nov. 30, 2020
Cash and Cash Equivalents [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 November 30, 2020 and May 31, 2020:


   November 30,
2020
   May 31,
2020
 
Cash in banks  $7,140,043   $9,677,848 
Money market funds   52,705    52,174 
   $7,192,748   $9,730,022