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SCHEDULE OF STOCK-BASED COMPENSATION EXPENSE (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Share-based Payment Arrangement, Expense $ 318,608 $ 451,683 $ 638,750 $ 1,805,999
Cost of Product Revenues [Member]        
Share-based Payment Arrangement, Expense 40,620 18,309 70,866 82,524
Research and Development [Member]        
Share-based Payment Arrangement, Expense 81,133 73,939 193,788 262,454
Selling, General and Administrative [Member]        
Share-based Payment Arrangement, Expense $ 196,855 $ 359,435 $ 374,096 $ 1,461,021