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DEBT (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Current and long-term debt    
Debt $ 155,149 $ 160,209
Current portion of long-term debt 149 1,720
Total long-term debt 155,000 158,489
Paycheck Protection Program Loan    
Current and long-term debt    
Debt 149 2,209
Current portion of long-term debt 149 1,720
Senior revolving credit facility    
Current and long-term debt    
Debt $ 155,000 $ 158,000