Quarterly report pursuant to Section 13 or 15(d)

Debt (Narrative) (Details)

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Debt (Narrative) (Details) - USD ($)
$ in Thousands
1 Months Ended 9 Months Ended
Nov. 02, 2018
May 21, 2020
Mar. 31, 2021
Nov. 03, 2020
Jun. 30, 2020
May 30, 2020
Debt Instrument [Line Items]            
Revolving line of credit facility amount outstanding     $ 16,000   $ 21,000  
Debt outstanding     22,751   $ 27,710  
Credit facility [Member]            
Debt Instrument [Line Items]            
Revolving line of credit facility maximum borrowing capacity $ 100,000          
Revolving line of credit facility amount outstanding $ 40,000          
Debt outstanding     $ 5,000      
Basis of variable interest rate     LIBOR plus a margin that ranges from 1.25% to 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 from 0.25% to 0.75% depending on the Consolidated Leverage Ratio. Swingline loans bear interest calculated at the Base Rate plus a margin that ranges from 0.25% to 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     $ 25,000      
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      
Paycheck Protection Program Loan [Member]            
Debt Instrument [Line Items]            
Principal loan amount           $ 6,900
Paycheck Protection Program Loan [Member] | Yankee Equipment Systems, Inc [Member]            
Debt Instrument [Line Items]            
Loan obligation       $ 916    
Paycheck Protection Program Loan [Member] | Fifth Third Bank, N.A. [Member]            
Debt Instrument [Line Items]            
Principal loan amount   $ 6,900        
Interest rate on PPP loan   1.00%        
PPP loan term   2 years