CAPITAL AND REGULATORY MATTERS (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Consolidated [Member]
Total Capital to Risk Weighted Assets [Abstract]
Actual, Amount	$ 313,545	$ 309,798
Actual, Ratio	14.70%	14.30%
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 223,296	$ 214,301
Minimum Required Under BASEL III Fully Phased-In, Ratio	10.50%	9.90%
Tier I Capital to Risk Weighted Assets [Abstract]
Actual, Amount	$ 263,512	$ 260,020
Actual, Ratio	12.40%	12.00%
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 180,763	$ 170,898
Minimum Required Under BASEL III Fully Phased-In, Ratio	8.50%	7.90%
Common Tier 1 (CET1) [Abstract]
Actual, Amount	$ 218,512	$ 215,020
Actual, Ratio	10.30%	9.90%
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 148,864	$ 138,346
Minimum Required Under BASEL III Fully Phased-In, Ratio	7.00%	6.40%
Tier I Capital to Average Assets [Abstract]
Actual, Amount	$ 263,512	$ 260,020
Actual, Ratio	9.70%	9.60%
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 108,707	$ 108,033
Minimum Required Under BASEL III Fully Phased-In, Ratio	4.00%	4.00%
City Bank [Member]
Total Capital to Risk Weighted Assets [Abstract]
Actual, Amount	$ 299,764	$ 294,572
Actual, Ratio	14.10%	13.60%
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 223,220	$ 214,246
Minimum Required Under BASEL III Fully Phased-In, Ratio	10.50%	9.90%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 212,591	$ 216,958
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%
Tier I Capital to Risk Weighted Assets [Abstract]
Actual, Amount	$ 276,203	$ 271,266
Actual, Ratio	13.00%	12.50%
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 180,702	$ 170,855
Minimum Required Under BASEL III Fully Phased-In, Ratio	8.50%	7.90%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 170,072	$ 173,567
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	8.00%	8.00%
Common Tier 1 (CET1) [Abstract]
Actual, Amount	$ 276,203	$ 271,266
Actual, Ratio	13.00%	12.50%
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 148,813	$ 138,311
Minimum Required Under BASEL III Fully Phased-In, Ratio	7.00%	6.40%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 138,184	$ 141,023
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%
Tier I Capital to Average Assets [Abstract]
Actual, Amount	$ 276,203	$ 271,266
Actual, Ratio	10.20%	10.10%
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 108,619	$ 107,940
Minimum Required Under BASEL III Fully Phased-In, Ratio	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 135,773	$ 134,925
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%