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The Company and Summary of Significant Accounting Policies (Details Narrative)
$ in Thousands
12 Months Ended
Dec. 23, 2019
USD ($)
Dec. 19, 2019
USD ($)
Apr. 15, 2019
USD ($)
Dec. 26, 2018
USD ($)
Nov. 01, 2019
USD ($)
Segment
Nov. 02, 2018
USD ($)
Jan. 24, 2020
USD ($)
Nov. 24, 2019
USD ($)
Proceeds from loan borrowed     $ 2,000          
Accounts receivable, allowance for doubtful accounts         $ 31 $ 33    
Number of reportable segments | Segment         2      
Cost incurred         $ 127,121 117,751    
Advertising expense         2,574 2,713    
Cash equivalents, at carrying value         $ 3,478 8,179    
Property, plant and equipment, useful life              
Stock-based compensation            
Building and Improvements [Member] | Minimum [Member]                
Property, plant and equipment, useful life         10 years      
Building and Improvements [Member] | Maximum [Member]                
Property, plant and equipment, useful life         20 years      
Machinery and Equipment [Member] | Minimum [Member]                
Property, plant and equipment, useful life         5 years      
Machinery and Equipment [Member] | Maximum [Member]                
Property, plant and equipment, useful life         10 years      
Transportation Equipment [Member] | Minimum [Member]                
Property, plant and equipment, useful life         3 years      
Transportation Equipment [Member] | Maximum [Member]                
Property, plant and equipment, useful life         5 years      
Shipping and Handling Costs [Member]                
Cost incurred         $ 5,012 3,883    
Promotional Allowances [Member]                
Cost incurred         $ 11,105 $ 8,840    
Sales Revenue, Net [Member] | Wal-Mart [Member]                
Concentration risk, percentage         35.70% 36.40%    
Sales Revenue, Net [Member] | Dollar General [Member]                
Concentration risk, percentage         11.10% 9.60%    
Accounts Receivable [Member] | Wal-Mart [Member]                
Concentration risk, percentage         31.90% 31.30%    
Accounts Receivable [Member] | Dollar General [Member]                
Concentration risk, percentage         21.70% 23.50%    
Wells Fargo Bank N.A [Member]                
Line of credit               $ 2,000
Master Collateral Loan and Security Agreement [Member] | Wells Fargo Bank N.A [Member]                
Proceeds from loan borrowed       $ 15,000        
Loan term       7 years        
Financial covenants, description       Total Liabilities divided by Tangible Net Worth (as defined) not greater than 2.5 to 1.0 at each fiscal quarter, Quick Ratio (as defined) not less than 1.0 to 1.0 at each fiscal quarter end, and Net income after taxes not less than one dollar on a quarterly basis, determined as of each fiscal quarter end.        
Liabilities to tangible net worth ratio       2.5        
Quick ratio       1.0        
Financial covenants net income after tax, minimum       $ 1        
Subsequent Event [Member] | Wells Fargo Bank N.A [Member]                
Line of credit             $ 2,500  
Subsequent Event [Member] | Third Master Collateral Loan and Security Agreement [Member] | Wells Fargo Bank N.A [Member]                
Proceeds from loan borrowed   $ 3,750            
Loan term   7 years            
Financial covenants, description   Total Liabilities divided by Tangible Net Worth not greater than 2.5 to 1.0 at each fiscal quarter, Quick Ratio not less than 1.0 to 1.0 at each fiscal quarter end, and Net income after taxes not less than one dollar on a quarterly basis, determined as of each fiscal quarter end.            
Subsequent Event [Member] | Third Master Collateral Loan and Security Agreement [Member] | Wells Fargo Bank N.A [Member] | Loan Agreement [Member]                
Proceeds from loan borrowed   $ 3,750            
Subsequent Event [Member] | Master Collateral Loan and Security Agreement [Member] | Wells Fargo Bank N.A [Member]                
Proceeds from loan borrowed $ 7,500              
Fixed rate   3.70%            
Debt instrument, variable rate 1.50%              
Liabilities to tangible net worth ratio 2.5              
Quick ratio 1.0              
Financial covenants net income after tax, minimum $ 1