CAPITAL AND REGULATORY MATTERS (Details) $ in Thousands	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Consolidated [Member]
Total Capital to Risk Weighted Assets [Abstract]
Actual, Amount	$ 488,339	$ 473,425
Actual, Ratio	0.1924	0.1908
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 266,458	$ 260,531
Minimum Required Under BASEL III Fully Phased-In, Ratio	0.1050	0.1050
Tier I Capital to Risk Weighted Assets [Abstract]
Actual, Amount	$ 380,816	$ 366,639
Actual, Ratio	0.1501	0.1478
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 215,704	$ 210,906
Minimum Required Under BASEL III Fully Phased-In, Ratio	0.0850	0.0850
Common Equity Tier 1 to Risk Weighted Assets [Abstract]
Actual, Amount	$ 335,816	$ 321,639
Actual, Ratio	0.1323	0.1296
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 177,639	$ 173,688
Minimum Required Under BASEL III Fully Phased-In, Ratio	0.0700	0.0700
Tier I Capital to Average Assets [Abstract]
Actual, Amount	$ 380,816	$ 366,639
Actual, Ratio	0.1035	0.1024
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 148,206	$ 144,347
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	$ 408,927	$ 404,138
Actual, Ratio	0.1612	0.1629
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 266,391	$ 260,481
Minimum Required Under BASEL III Fully Phased-In, Ratio	0.1050	0.1050
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 253,706	$ 248,077
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.1000	0.1000
Tier I Capital to Risk Weighted Assets [Abstract]
Actual, Amount	$ 377,048	$ 372,947
Actual, Ratio	0.1486	0.1503
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 215,650	$ 210,866
Minimum Required Under BASEL III Fully Phased-In, Ratio	0.0850	0.0850
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 202,965	$ 198,462
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0800	0.0800
Common Equity Tier 1 to Risk Weighted Assets [Abstract]
Actual, Amount	$ 377,048	$ 372,947
Actual, Ratio	0.1486	0.1503
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 177,594	$ 173,654
Minimum Required Under BASEL III Fully Phased-In, Ratio	0.0700	0.0700
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 164,909	$ 161,250
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0650	0.0650
Tier I Capital to Average Assets [Abstract]
Actual, Amount	$ 377,048	$ 372,947
Actual, Ratio	0.1026	0.1042
Minimum Required Under BASEL III Fully Phased-In, Amount	$ 102,960	$ 144,282
Minimum Required Under BASEL III Fully Phased-In, Ratio	0.0400	0.0400
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 183,826	$ 178,999
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0500	0.0500