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ACQUISITION (Fair Value Adjustments) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 11, 2020
Dec. 31, 2021
Business Acquisition [Line Items]    
Interest rate fair value adjustment on pools of homogeneous loans $ 2,600 $ (2,600)
Credit fair value adjustment on pools of homogeneous loans 5,300 $ (5,900)
Frederick County Bancorp, Inc.    
Business Acquisition [Line Items]    
Gross amortized cost basis at January 11, 2020 339,577  
Interest rate fair value adjustment on pools of homogeneous loans (2,632)  
Credit fair value adjustment on pools of homogeneous loans (5,931)  
Fair value of acquired loans at January 11, 2020 329,312  
Frederick County Bancorp, Inc. | Purchased credit impaired loans    
Business Acquisition [Line Items]    
Credit fair value adjustment on pools of homogeneous loans $ (1,702)