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CAPITAL AND REGULATORY MATTERS (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Consolidated [Member]    
Total Capital to Risk Weighted Assets [Abstract]    
Actual, Amount $ 473,425 $ 373,684
Actual, Ratio 0.1908 0.1488
Minimum Required Under BASEL III Fully Phased-In, Amount $ 260,531 $ 263,769
Minimum Required Under BASEL III Fully Phased-In, Ratio 0.1050 0.1050
Tier I Capital to Risk Weighted Assets [Abstract]    
Actual, Amount $ 366,639 $ 322,835
Actual, Ratio 0.1478 0.1285
Minimum Required Under BASEL III Fully Phased-In, Amount $ 210,906 $ 213,527
Minimum Required Under BASEL III Fully Phased-In, Ratio 0.0850 0.0850
Common Tier 1 (CET1) [Abstract]    
Actual, Amount $ 321,639 $ 277,835
Actual, Ratio 0.1296 0.1106
Minimum Required Under BASEL III Fully Phased-In, Amount $ 173,688 $ 175,846
Minimum Required Under BASEL III Fully Phased-In, Ratio 0.0700 0.0700
Tier I Capital to Average Assets [Abstract]    
Actual, Amount $ 366,639 $ 322,835
Actual, Ratio 0.1024 0.1074
Minimum Required Under BASEL III Fully Phased-In, Amount $ 144,347 $ 120,219
Minimum Required Under BASEL III Fully Phased-In, Ratio 0.0400 0.0400
City Bank [Member]    
Total Capital to Risk Weighted Assets [Abstract]    
Actual, Amount $ 404,138 $ 368,322
Actual, Ratio 0.1629 0.1467
Minimum Required Under BASEL III Fully Phased-In, Amount $ 260,481 $ 263,702
Minimum Required Under BASEL III Fully Phased-In, Ratio 0.1050 0.1050
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount $ 248,077 $ 251,145
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.1000 0.1000
Tier I Capital to Risk Weighted Assets [Abstract]    
Actual, Amount $ 372,947 $ 343,945
Actual, Ratio 0.1503 0.1370
Minimum Required Under BASEL III Fully Phased-In, Amount $ 210,866 $ 213,473
Minimum Required Under BASEL III Fully Phased-In, Ratio 0.0850 0.0850
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount $ 198,462 $ 200,916
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.0800 0.0800
Common Tier 1 (CET1) [Abstract]    
Actual, Amount $ 372,947 $ 343,945
Actual, Ratio 0.1503 0.1370
Minimum Required Under BASEL III Fully Phased-In, Amount $ 173,654 $ 175,801
Minimum Required Under BASEL III Fully Phased-In, Ratio 0.0700 0.0700
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount $ 161,250 $ 163,244
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.0650 0.0650
Tier I Capital to Average Assets [Abstract]    
Actual, Amount $ 372,947 $ 343,945
Actual, Ratio 0.1042 0.1145
Minimum Required Under BASEL III Fully Phased-In, Amount $ 144,282 $ 121,235
Minimum Required Under BASEL III Fully Phased-In, Ratio 0.0400 0.0400
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount $ 178,999 $ 150,175
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.0500 0.0500