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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Income Tax Disclosure [Abstract]          
Release of valuation allowance         $ 3,700
Income tax expense (benefit) $ 73 $ (715) $ 246 $ (7,112)  
Effective income tax rate (1.80%) 16.10% (1.90%) 40.70%  
Unrecognized tax benefits $ 1,313   $ 1,313    
Accrued interest and penalties 497   497    
Interest and penalties included in income tax expense 52 $ 43 152 $ 125  
Uncertain tax positions that would impact effective tax rate $ 1,810   $ 1,810