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Long-Term Debt - Narrative (Details)
6 Months Ended
Feb. 01, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Jan. 31, 2019
USD ($)
May 04, 2018
USD ($)
Mar. 30, 2016
USD ($)
Line of Credit Facility [Line Items]            
Repayment of term loan   $ 1,000,000 $ 1,000,000      
March 2016 Term Loan | Secured Debt            
Line of Credit Facility [Line Items]            
Maximum capacity on draw           $ 10,000,000
Frequency of periodic payment   quarterly        
Quarterly installments   $ 500,000        
Fixed rate interest on debt         5.68% 4.93%
Debt instrument, covenant, fixed charge coverage ratio         1.25 1.5
Debt instrument, covenant, required minimum working capital         $ 8,000,000 $ 5,000,000
Debt instrument, covenant, total liabilities to tangible net worth ratio         3.0  
March 2016 Revolving Loan | Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Maximum capacity on draw           $ 2,000,000
Subsequent Event | March 2016 Term Loan | Secured Debt            
Line of Credit Facility [Line Items]            
Repayment of term loan $ 2,000,000          
Subsequent Event | March 2016 Revolving Loan | Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Maximum capacity on draw $ 5,000,000.0     $ 2,000,000.0