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Long-Term Debt - Narrative (Details)
9 Months Ended
Feb. 01, 2019
USD ($)
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
May 04, 2018
USD ($)
Mar. 30, 2016
USD ($)
Line of Credit Facility [Line Items]          
Repayment of term loan   $ 3,500,000 $ 1,500,000    
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 1.1     1.25 1.5
Debt instrument, covenant, required minimum working capital $ 6,000,000     $ 8,000,000 $ 5,000,000
Debt instrument, covenant, total liabilities to tangible net worth ratio       3.0  
March 2016 Revolving Loan | Secured Debt          
Line of Credit Facility [Line Items]          
Repayment of term loan 2,000,000        
March 2016 Revolving Loan | Revolving Credit Facility          
Line of Credit Facility [Line Items]          
Maximum capacity on draw $ 5,000,000       $ 2,000,000