XML 81 R65.htm IDEA: XBRL DOCUMENT v3.21.1
Defined Contribution Pension Plan (Details Narrative) - USD ($)
12 Months Ended
Jan. 02, 2019
Dec. 31, 2020
Dec. 31, 2019
Employee's contribution maximum percentage 100.00%    
Employer match percentage 1.00%    
Contributions by company   $ 117,000 $ 123,000
Additional Contribution [Member]      
Employee's contribution maximum percentage 50.00%    
Employer match percentage 3.50%