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ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
AOCI Roll Forward    
Balance $ (2,748) $ (2,175)
Change during period:    
Adoption of accounting standard (Note 1)   (414)
Before-tax amount 250 (287)
Tax benefit (expense) (30) 63
Reclassification adjustment, net of taxes    
Amortization of net loss 76 68
Pension settlement loss 505  
Net realized gain (loss)   (3)
Total activity for the period 801 (573)
Balance (1,947) (2,748)
Pension Adjustment    
AOCI Roll Forward    
Balance (2,748) (2,178)
Change during period:    
Adoption of accounting standard (Note 1)   (404)
Before-tax amount 250 (300)
Tax benefit (expense) (30) 66
Reclassification adjustment, net of taxes    
Amortization of net loss 76 68
Pension settlement loss 505  
Total activity for the period 801 (570)
Balance $ (1,947) (2,748)
Unrealized Gain (Loss) on Securities    
AOCI Roll Forward    
Balance   3
Change during period:    
Adoption of accounting standard (Note 1)   (10)
Before-tax amount   13
Tax benefit (expense)   (3)
Reclassification adjustment, net of taxes    
Net realized gain (loss)   (3)
Total activity for the period   $ (3)