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RETIREMENT PLANS (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
USD ($)
plan
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Defined Benefit Plan Disclosure [Line Items]      
Plan participant service requirement, period 1 month    
Plan participant age required 18 years    
Maximum annual contributions per employee $ 61    
Maximum annual contributions per employee, percent 100.00%    
Employer matching contribution, percent of match of base contribution by employee 0.50    
Employer matching contribution, percent of employee contribution 6.00%    
Employer contribution expense $ 780 $ 669 $ 626
Deferred compensation arrangement      
Defined Benefit Plan Disclosure [Line Items]      
Age at which a director or his beneficiaries will receive a monthly retirement benefit 65 years    
Estimated present value of future benefits to be paid $ 18 36  
Plan expense 4 5 7
Supplemental discretionary deferred compensation plans      
Defined Benefit Plan Disclosure [Line Items]      
Plan expense 51 61 61
Trust account balance 2,000 2,300  
Supplemental retirement and salary continuation plans      
Defined Benefit Plan Disclosure [Line Items]      
Estimated present value of future benefits to be paid 13,600 12,300  
Plan expense $ 2,000 1,700 1,500
Number of supplemental retirement and salary continuation plans | plan 2    
Life insurance coverage post-retirement      
Defined Benefit Plan Disclosure [Line Items]      
Estimated present value of future benefits to be paid $ 1,700 1,600  
Plan expense $ 105 $ 104 $ 25