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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)
12 Months Ended
Dec. 31, 2020
FAIR VALUE OF FINANCIAL INSTRUMENTS [Abstract]  
Carrying Amount and Fair Value of Long-Term Debt
In thousands
 
December 31,
 
 
 
2020
   
2019
 
Carrying amount
 
$
144,090
   
$
145,862
 
Estimated fair value
   
171,374
     
157,710