Quarterly report pursuant to Section 13 or 15(d)

LIABILITIES AND LONG-TERM DEBT - Additional Information (Details)

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LIABILITIES AND LONG-TERM DEBT - Additional Information (Details)
6 Months Ended 12 Months Ended
May 06, 2020
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
May 03, 2021
USD ($)
Mar. 31, 2021
Line of Credit Facility [Line Items]            
Proceeds from PPP loans   $ 0 $ 6,123,000      
Debt issuance costs   377,000   $ 468,000    
ARC Agreement            
Line of Credit Facility [Line Items]            
Debt Instrument, Maximum Add-Backs         $ 5,000,000.0  
Debt issuance costs   $ 900,000        
ARC Agreement | TOCCO            
Line of Credit Facility [Line Items]            
Consolidated leverage ratio, minimum required   3.50        
Consolidated leverage ratio   1.34       1.62
Consolidated fixed charge coverage ratio, minimum required   1.15        
Consolidated fixed charge coverage ratio   3.07   2.13    
PPP Loans | CARES Act            
Line of Credit Facility [Line Items]            
Proceeds from PPP loans $ 6,100,000          
Borrowing rate (percentage) 1.00%          
Revolving Facility            
Line of Credit Facility [Line Items]            
Long-term debt   $ 0   $ 0    
Revolving Facility | ARC Agreement            
Line of Credit Facility [Line Items]            
Available remaining borrowing capacity   $ 72,000,000        
Effective interest rate (percentage)   1.87%        
Term Loan            
Line of Credit Facility [Line Items]            
Long-term debt   $ 44,000,000.0