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CASH AND CASH EQUIVALENTS AND MARKETABLE DEBT SECURITIES (Tables)
 3 Months Ended
Mar. 28, 2020
Cash and Cash Equivalents [Abstract]  
SCHEDULE OF AVAILABLE-FOR-SALE MARKETABLE DEBT SECURITIES

Investments in available-for-sale marketable debt securities were as follows at March 28, 2020 and December 28, 2019:

 

   Amortized Cost   Unrealized Gains   Unrealized Losses   Fair Value 
   2020   2019   2020   2019   2020   2019   2020   2019 
U.S. government and agency backed securities  $3,005,799   $8,304,229   $32,301   $-   $-   $(7,359)  $3,038,100   $8,296,870 
Corporate debt   6,457,883    7,459,298    -    -    (188,024)   (3,171)   6,269,859    7,456,127 
Total  $9,463,682   $15,763,527   $32,301   $-   $(188,024)  $(10,530)  $9,307,959   $15,752,997 
SCHEDULE OF MARKETABLE DEBT SECURITIES

The contractual maturity of the Company’s marketable debt securities was as follows at March 28, 2020:

 

   Less than One year   One to Five years   Total 
U.S. government and agency backed securities  $-   $3,038,100   $3,038,100 
Corporate debt   2,529,970    3,739,889    6,269,859 
Total  $2,529,970   $6,777,989   $9,307,959