SHAREHOLDERS’ EQUITY AND EARNINGS PER COMMON SHARE - Actual and Required Capital Ratios (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Tier 1 capital to risk-weighted assets
Capital	$ 331,628	$ 307,305
Actual
Total capital to risk-weighted assets	14.23%	13.73%
Common equity tier 1 capital to risk-weighted assets	11.80%	11.26%
Tier 1 capital to risk-weighted assets	12.68%	12.19%
Tier 1 capital to average assets	8.53%	8.10%
Capital required for capital adequacy	$ 186,405	$ 179,047
Common equity tier one risk based capital required for capital adequacy	104,853	100,714
Tier one risk based capital required for capital adequacy	139,803	134,286
Leverage capital ratio risk based capital required for capital adequacy	$ 138,482	$ 134,758
Minimum Capital Requirement
Total capital to risk-weighted assets	8.00%	8.00%
Common equity tier 1 capital to risk-weighted assets	4.50%	4.50%
Tier 1 capital to average assets	6.00%	6.00%
Tier 1 capital to risk-weighted assets	4.00%	4.00%
Capital Required to be Well Capitalized	$ 244,656	$ 234,999
Common equity tier one risk based capital required to be well capitalized	151,454	145,476
Tier one risk based capital required to be well capitalized	186,404	179,047
Leverage capital ratio risk based capital required to be well capitalized	$ 173,102	$ 168,447
Minimum to be Well-Capitalized Under Prompt Corrective Action Provisions
Total capital to risk-weighted assets	10.00%	10.50%
Common equity tier 1 capital to risk-weighted assets	6.50%	6.50%
Tier 1 capital to risk-weighted assets	8.00%	8.00%
Tier 1 capital to average assets	5.00%	5.00%
Leverage capital ratio risk based total assets	$ 295,458	$ 272,716
Tier one risk based capital	295,458	272,716
Common equity tier one	274,838	252,096
Bank
Tier 1 capital to risk-weighted assets
Capital	$ 321,390	$ 306,495
Actual
Total capital to risk-weighted assets	13.82%	13.71%
Common equity tier 1 capital to risk-weighted assets	12.99%	12.92%
Tier 1 capital to risk-weighted assets	12.99%	12.92%
Tier 1 capital to average assets	8.74%	8.58%
Capital required for capital adequacy	$ 186,092	$ 178,868
Common equity tier one risk based capital required for capital adequacy	104,677	100,613
Tier one risk based capital required for capital adequacy	139,569	134,151
Leverage capital ratio risk based capital required for capital adequacy	$ 138,392	$ 134,702
Minimum Capital Requirement
Total capital to risk-weighted assets	8.00%	8.00%
Common equity tier 1 capital to risk-weighted assets	4.50%	4.50%
Tier 1 capital to average assets	6.00%	6.00%
Tier 1 capital to risk-weighted assets	4.00%	4.00%
Capital Required to be Well Capitalized	$ 244,246	$ 234,764
Common equity tier one risk based capital required to be well capitalized	151,200	145,331
Tier one risk based capital required to be well capitalized	186,092	178,868
Leverage capital ratio risk based capital required to be well capitalized	$ 172,990	$ 168,378
Minimum to be Well-Capitalized Under Prompt Corrective Action Provisions
Total capital to risk-weighted assets	10.00%	10.50%
Common equity tier 1 capital to risk-weighted assets	6.50%	6.50%
Tier 1 capital to risk-weighted assets	8.00%	8.00%
Tier 1 capital to average assets	5.00%	5.00%
Leverage capital ratio risk based total assets	$ 302,220	$ 288,906
Tier one risk based capital	302,220	288,906
Common equity tier one	$ 302,220	$ 288,906

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