Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVES (Summary of the Carrying Value of the Company's Hedged Assets in Fair Value Hedges) (Details)

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DERIVATIVES (Summary of the Carrying Value of the Company's Hedged Assets in Fair Value Hedges) (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Derivative [Line Items]    
Carrying Amount of Hedged Asset/(Liabilities) $ 50,000 $ 50,000
Portfolio, last-of-layer, amortized cost 123,000 166,000
Available-for-sale Securities    
Derivative [Line Items]    
Carrying Amount of Hedged Asset/(Liabilities) 122,522 166,413
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities) 4,993 7,297
Fair value of aggregate notional amount of the hedged items, unrealized loss 5,000 7,300
Loans    
Derivative [Line Items]    
Carrying Amount of Hedged Asset/(Liabilities) 89,792 74,726
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities) $ 1,170 $ 5,088