Credit Agreements - Line of Credit (Details)
Jul. 01, 2020
USD ($)
Jun. 27, 2020
USD ($)
Jan. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]        
Line of credit   $ 26,000,000.0   $ 30,000,000
Bank Of America | Revolving Credit Facility        
Debt Instrument [Line Items]        
Revolving credit facility, maximum capacity     $ 35,000,000.0  
Line of credit, amount available   $ 9,000,000.0    
Covenant compliance, fixed charge coverage ratio   4.1    
Bank Of America | Revolving Credit Facility | Subsequent Event        
Debt Instrument [Line Items]        
Covenant compliance, minimum availability $ 5,000,000.0      
Covenant compliance, minimum fixed charge coverage ratio 1.0      
Bank Of America | Letter of Credit        
Debt Instrument [Line Items]        
Revolving credit facility, maximum capacity     $ 10,000,000.0  
Interest rate   4.50%    
Bank Of America | Letter of Credit | Subsequent Event        
Debt Instrument [Line Items]        
Interest rate 3.75%      
Bank Of America | London Interbank Offered Rate (LIBOR) | Minimum | Revolving Credit Facility | Subsequent Event        
Debt Instrument [Line Items]        
Basis spread on variable rate 1.50%      
Bank Of America | London Interbank Offered Rate (LIBOR) | Maximum | Revolving Credit Facility | Subsequent Event        
Debt Instrument [Line Items]        
Basis spread on variable rate 2.00%      
Bank Of America | Prime Rate | Minimum | Revolving Credit Facility | Subsequent Event        
Debt Instrument [Line Items]        
Basis spread on variable rate 0.50%      
Bank Of America | Prime Rate | Maximum | Revolving Credit Facility | Subsequent Event        
Debt Instrument [Line Items]        
Basis spread on variable rate 1.00%