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SUBORDINATED DEBENTURES - Narrative (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
USD ($)
period
Dec. 31, 2018
SUBORDINATED DEBENTURES    
Maximum deferred interest period quarters | period 10  
Period shorten the maturity date from the event 90 days  
Trust preferred securities qualified as Tier 1 capital 100.00% 100.00%
National Bancorp Statutory Trust I    
SUBORDINATED DEBENTURES    
Contractual obligation | $ $ 5,773