Quarterly report pursuant to Section 13 or 15(d)

Debt (Narrative) (Details)

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Debt (Narrative) (Details) - USD ($)
$ in Thousands
6 Months Ended
Nov. 02, 2018
Dec. 31, 2018
Jun. 30, 2018
Debt Instrument [Line Items]      
Revolving line of credit facility amount outstanding   $ 37,800 $ 3,697
Debt outstanding   37,545 $ 10,012
Credit facility [Member]      
Debt Instrument [Line Items]      
Revolving line of credit facility maximum borrowing capacity $ 100,000 20,000  
Revolving line of credit facility amount outstanding $ 40,000    
Debt outstanding   $ 5,000  
Basis of variable interest rate   LIBOR plus a margin that ranges between 1.25% and 1.75% depending on the Company’s consolidated leverage ratio, which is a ratio of consolidated funded indebtedness to consolidated earnings before interest, taxes, depreciation and amortization (EBITDA) (the “Consolidated Leverage Ratio”) or (b) the highest of (i) prime, (ii) the federal funds rate plus 50 basis points, and (iii) the one month LIBOR rate plus 100 basis points (such highest rate, the “Base Rate”), plus a margin that ranges between 0.25% and 0.75% depending on the Consolidated Leverage Ratio. Swingline loans bear interest calculated at the Base Rate plus a margin that ranges between 0.25% and 0.75% depending on the Consolidated Leverage Ratio.  
Expiration date   Nov. 02, 2023  
Credit facility term 5 years 5 years  
Amount available for borrowing under the revolving line of credit facility   $ 12,800  
Credit facility [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Revolving line of credit facility maximum borrowing capacity $ 140,000    
Revolving line of credit [Member]      
Debt Instrument [Line Items]      
Debt outstanding   $ 10,000