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, 2020
Dec. 31, 2019
Derivative [Line Items]    
Carrying Amount of Hedged Asset/(Liabilities) $ 50,000  
Portfolio, last-of-layer, amortized cost 180,000 $ 207,000
Fair Value Hedging    
Derivative [Line Items]    
Fair value of aggregate notional amount of the hedged items, unrealized loss 5,900 2,000
Available-for-sale Securities    
Derivative [Line Items]    
Carrying Amount of Hedged Asset/(Liabilities) 179,908 206,799
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities) 7,992 4,072
Fair value of aggregate notional amount of the hedged items, unrealized loss 8,000 4,100
Available-for-sale Securities | Fair Value Hedging    
Derivative [Line Items]    
Fair value of aggregate notional amount of the hedged items, unrealized loss 8,000 4,100
Loans    
Derivative [Line Items]    
Carrying Amount of Hedged Asset/(Liabilities) 75,856 83,078
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Asset/(Liabilities) $ 5,830 $ 1,972