Quarterly report pursuant to Section 13 or 15(d)

11. Subsequent Events (Details)

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11. Subsequent Events (Details) - USD ($)
 3 Months Ended 12 Months Ended
Apr. 01, 2019
Jan. 02, 2019
Mar. 31, 2019
Dec. 31, 2018
Restricted stock units granted     290,000  
Restricted Stock Units (RSUs) [Member]        
Restricted stock units granted     222,224 0
Restricted Stock Units (RSUs) [Member] | Four independent directors        
Restricted stock units granted   222,224    
Restricted stock units granted value   $ 260,000    
Share price   $ 1.17    
Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member] | Four independent directors        
Restricted stock units granted 72,224      
Restricted stock units granted value $ 65,002      
Share price $ 0.90