Annual report pursuant to Section 13 and 15(d)

Series A-1 Preferred Stock - Additional Information (Details)

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Series A-1 Preferred Stock - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Aug. 18, 2017
Jan. 02, 2021
Dec. 29, 2018
Preferred stock, voting rights   Each holder of a share of Series A Preferred Stock has a number of votes as is determined by multiplying (i) the number of shares of Series A Preferred Stock held by such holder, and (ii) 17. The holders of Series A-1 Preferred Stock vote together with all other classes and series of common and preferred stock of the Company as a single class on all actions to be taken by the common stockholders of the Company, except to the extent that voting as a separate class or series is required by law.  
Series A Convertible Preferred Stock      
Dividends payable, amount per share     $ 1.00
Series A1 Convertible Preferred Stock      
Number of shares issued upon exchange of Convertible Preferred Stock   259,729  
Convertible preferred stock conversion ratio   458.3453%  
Preferred stock, redemption terms   The Series A-1 Preferred Stock has no redemption rights by JanOne, GeoTraq, or any other entity.  
GeoTraq Inc.      
Cash paid for acquisition $ 200    
GeoTraq Inc. | One-year Unsecured Promissory Notes      
Business acquisition, Promissory notes issued $ 800    
GeoTraq Inc. | Series A Convertible Preferred Stock      
Business acquisition, Stock issued 288,588