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SHORT-TERM INVESTMENTS (Tables)
 3 Months Ended
Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
SCHEDULE OF AVAILABLE FOR SALE SHORT-TERM INVESTMENTS

Short-term investments consisted of the following marketable securities as of:

 

(in thousands)  March 31, 2022 
   Amortized Cost   Gross Unrealized Gain   Gross Unrealized Loss   Fair Value 
Available-for-sale, short-term investments                                       
U.S. treasury securities  $10,986   $3   $-   $10,989 
Total  $10,986   $3   $-   $10,989 

 

   December 31, 2021 
   Amortized Cost   Gross Unrealized Gain   Gross Unrealized Loss   Fair Value 
Available-for-sale, short-term investments                                        
U.S. treasury securities  $12,077   $9   $-   $12,086 
Total  $12,077   $9   $-   $12,086