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INVESTMENT IN MARKETABLE EQUITY SECURITIES (Tables)
3 Months Ended
Jun. 30, 2021
Investment In Marketable Equity Securities  
Schedule of investment in marketable equity securities
      
   Three Months Ended June 30,
(In thousands)  2021  2020
       
Balance, beginning of period  $   $68 
Unrealized gain on investment       78 
Balance, end of period  $   $146