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Long-Term Debt - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
May 09, 2018
Jul. 02, 2019
Jul. 03, 2018
Jul. 02, 2019
Jul. 03, 2018
Jun. 28, 2022
Mar. 30, 2021
Mar. 31, 2020
Line of Credit Facility [Line Items]                
Amount outstanding   $ 46,100,000   $ 46,100,000        
Unamortized debt issuance costs   1,400,000   1,400,000        
Letters of credit outstanding   3,200,000   3,200,000        
Loss on extinguishment of debt   0 $ 626,000 0 $ 626,000      
Principal repayments through the first quarter of 2019   938,000   938,000        
Principal repayments through the first quarter of 2020   1,656,000   1,656,000        
Principal repayments through the first quarter of 2021   1,594,000   1,594,000        
Principal repayments through the first quarter of 2022   41,888,000   $ 41,888,000        
Minimum                
Line of Credit Facility [Line Items]                
Interest rate       5.34%        
Maximum [Member]                
Line of Credit Facility [Line Items]                
Interest rate       7.25%        
2018 Term Loan Facility | Revolving Credit Facility                
Line of Credit Facility [Line Items]                
Maximum borrowing capacity $ 25,000,000.0              
2018 Credit Facility                
Line of Credit Facility [Line Items]                
Principal repayments through the first quarter of 2019   $ 156,250   $ 156,250        
2018 Credit Facility | Minimum                
Line of Credit Facility [Line Items]                
Commitment fee percentage 0.30%              
2018 Credit Facility | Maximum [Member]                
Line of Credit Facility [Line Items]                
Commitment fee percentage 0.50%              
2018 Credit Facility | LIBOR | Minimum                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 2.25%              
2018 Credit Facility | LIBOR | Maximum [Member]                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 3.25%              
2018 Credit Facility | Base Rate | Minimum                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 1.25%              
2018 Credit Facility | Base Rate | Maximum [Member]                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 2.25%              
2018 Credit Facility | Federal Funds Rate                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 0.50%              
2018 Credit Facility | Prime Rate                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 1.00%              
2018 Credit Facility | Revolving Credit Facility                
Line of Credit Facility [Line Items]                
Maximum borrowing capacity $ 65,000,000.0              
2018 Credit Facility | Letter of Credit                
Line of Credit Facility [Line Items]                
Maximum borrowing capacity 75,000,000.0              
Two Thousand and Eighteen Credit Subfacility                
Line of Credit Facility [Line Items]                
Maximum borrowing capacity 15,000,000.0              
Two Thousand and Eighteen Swingline Subfacility                
Line of Credit Facility [Line Items]                
Maximum borrowing capacity $ 10,000,000.0              
Prior Credit Facility | Letter of Credit                
Line of Credit Facility [Line Items]                
Loss on extinguishment of debt     $ (600,000)          
Scenario, Forecast                
Line of Credit Facility [Line Items]                
Principal repayments through the first quarter of 2020               $ 187,500
Principal repayments through the first quarter of 2021             $ 375,000  
Principal repayments through the first quarter of 2022           $ 531,250