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FINANCING ARRANGEMENTS AND LONG-TERM DEBT (Details)
Mar. 10, 2020
USD ($)
installment
Jun. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Mar. 09, 2020
USD ($)
FINANCING ARRANGEMENTS AND LONG-TERM DEBT        
Outstanding borrowings   $ 72,300,000 $ 74,500,000  
Fair value of outstanding borrowing   $ 70,700,000 $ 73,600,000  
Debt Instrument, Valuation Technique [Extensible List]   us-gaap:ValuationTechniqueDiscountedCashFlowMember us-gaap:ValuationTechniqueDiscountedCashFlowMember  
Debt Instrument, Measurement Input [Extensible List]   us-gaap:MeasurementInputDiscountRateMember us-gaap:MeasurementInputDiscountRateMember  
Debt instrument, measurement input   0.038 0.020  
Eurodollar        
FINANCING ARRANGEMENTS AND LONG-TERM DEBT        
Interest rate basis Eurodollar Rate      
2020 Credit Agreement        
FINANCING ARRANGEMENTS AND LONG-TERM DEBT        
Percentage of net proceeds from issuances of debt and equity used for mandatory repayments of the debt 100.00%      
Percentage of net proceeds from insurance recovery and condemnation events used for mandatory repayments of the debt 100.00%      
2020 Credit Agreement | Federal Funds Rate        
FINANCING ARRANGEMENTS AND LONG-TERM DEBT        
Applicable margin (as a percent) 0.50%      
2020 Credit Agreement | Eurodollar        
FINANCING ARRANGEMENTS AND LONG-TERM DEBT        
Applicable margin (as a percent) 1.00%      
2020 Credit Agreement | Term loan facility        
FINANCING ARRANGEMENTS AND LONG-TERM DEBT        
Maximum borrowing capacity $ 86,000,000.0      
Number of quarterly installments | installment 19      
Periodic repayment $ 1,075,000      
2020 Credit Agreement | Revolving Credit Facility        
FINANCING ARRANGEMENTS AND LONG-TERM DEBT        
Maximum borrowing capacity $ 54,000,000.0     $ 30,000,000.0
Borrowings under the revolver   $ 0 $ 0