v3.24.0.1
Income Taxes (Schedule of net operating losses, tax credits and capital losses recorded deferred tax assets) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 30, 2023
Dec. 31, 2022
Operating Loss Carryforwards [Line Items]    
Total $ 43,871 $ 20,201
Gross Tax Attributes [Member]    
Operating Loss Carryforwards [Line Items]    
Net operating losses - Canada 2,123  
Net operating losses - U.S. Federal 145,989  
Net operating losses - U.S. State 103,009  
Net operating losses - Other 167  
Federal credits - Canada 0  
Federal credits - U.S. 0  
State credits - U.S. 0  
Federal capital loss - Canada 27,838  
Net Tax Attributes [Member]    
Operating Loss Carryforwards [Line Items]    
Net operating losses - Canada 563  
Net operating losses - U.S. Federal 30,658  
Net operating losses - U.S. State 5,613  
Net operating losses - Other 50  
Federal credits - Canada 255  
Federal credits - U.S. 2,833  
State credits - U.S. 211  
Federal capital loss - Canada 3,688  
Total $ 43,871  
Expiration Years [Member]    
Operating Loss Carryforwards [Line Items]    
Net operating losses - Canada 2040-2041  
Net operating losses - U.S. Federal 2037 and indefinite  
Net operating losses - U.S. State 2027-2043 and indefinite  
Net operating losses - Other 2028  
Federal credits - Canada N/A  
Federal credits - U.S. 2031-2043  
State credits - U.S. 2024-2026  
Federal capital loss - Canada N/A