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DEBT - Lines of Credit (Details) - Revolver 1 - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 30, 2020
Dec. 31, 2021
Dec. 31, 2019
Lines of Credit          
Maximum borrowing capacity     $ 70,000   $ 45,000
Effective interest rate 2.23%     2.10%  
Amount of available credit $ 64,923     $ 61,841  
Interest expense 56 $ 226      
Outstanding balance 5,224     8,159  
Tangible net worth $ 120,000        
Debt to EBITDA ratio 4        
Deferred debt issuance costs       $ 295  
London Interbank Offered Rate (LIBOR)          
Lines of Credit          
Spread rate 2.00%   2.40%