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Quarterly Results of Operations (unaudited) (Tables)
12 Months Ended
Dec. 30, 2023
Quarterly Financial Information Disclosure [Abstract]  
Schedule of Quarterly Financial Information [Table Text Block]
    Fiscal 2023  
    First     Second     Third     Fourth  
    Quarter     Quarter     Quarter     Quarter  
    $     $     $     $  
Revenues   154,969     141,163     152,541     181,624  
Gross profit   24,079     18,629     20,268     25,641  
Loss from continuing operations   (2,827 )   (11,651 )   (5,680 )   (1,752 )
Earnings (loss) from discontinued operations   4,204     (7,187 )   (140,143 )   (9,982 )
Net earnings (loss)   1,377     (18,838 )   (145,823 )   (11,734 )
Dividends and accretion of preferred stock   (704 )   (422 )   (426 )   (429 )
Earnings (loss) attributable to common shareholders   673     (19,260 )   (146,249 )   (12,163 )
                         
Basic and diluted earnings (loss) per share:                        
Loss from continuing operations   (0.03 )   (0.10 )   (0.05 )   (0.02 )
Earnings (loss) from discontinued operations   0.04     (0.06 )   (1.21 )   (0.09 )
Earnings (loss) attributable to common shareholders(1)   0.01     (0.17 )   (1.26 )   (0.11 )
    Fiscal 2022  
    First     Second     Third     Fourth  
    Quarter     Quarter     Quarter     Quarter  
    $     $     $     $  
Revenues   139,517     148,065     144,023     159,790  
Gross profit   23,769     27,013     25,132     23,816  
Earnings (loss) from continuing operations   1,021     928     2,359     (427 )
Earnings (loss) from discontinued operations   3,547     543     (14,293 )   1,481  
Net earnings (loss)   4,568     1,471     (11,934 )   1,054  
Dividends and accretion of preferred stock   (755 )   (760 )   (764 )   (830 )
Earnings (loss) attributable to common shareholders   3,813     711     (12,698 )   224  
                         
Basic and diluted earnings (loss) per share:                        
Earnings from continuing operations   0.00     0.00     0.01     (0.01

)

Earnings (loss) from discontinued operations   0.03     0.01     (0.13 )   0.01  
Earnings (loss) attributable to common shareholders(1)   0.04     0.01     (0.12 )   0.00  

(1) The sum of the individual per share amounts may not add due to rounding.