REGULATORY MATTERS - Comparison of the Company's and Bank's Actual Capital Amounts and Ratios to Required Capital Amounts and Ratios (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Total capital to risk-weighted assets:
Actual, Amount	$ 244,274	$ 241,791
Actual, Ratio	13.26%	13.25%
Minimum Required for Capital Adequacy Purposes, Amount	$ 147,383	$ 146,020
Minimum Required for Capital Adequacy Purposes, Ratio	8.00%	8.00%
Minimum Required Under Basel III Fully Phased-In, Amount	$ 193,441	$ 191,651
Minimum Required Under Basel III Fully Phased-In, Ratio	10.50%	10.50%
Tier 1 capital to risk-weighted assets:
Actual, Amount	$ 229,084	$ 227,140
Actual, Ratio	12.43%	12.44%
Minimum Required for Capital Adequacy Purposes, Amount	$ 110,537	$ 109,515
Minimum Required for Capital Adequacy Purposes, Ratio	6.00%	6.00%
Minimum Required Under Basel III Fully Phased-In, Amount	$ 156,595	$ 155,146
Minimum Required Under Basel III Fully Phased-In, Ratio	8.50%	8.50%
Tier 1 capital to average assets:
Actual, Amount	$ 229,084	$ 227,140
Actual, Ratio	10.14%	10.16%
Minimum Required for Capital Adequacy Purposes, Amount	$ 90,386	$ 89,422
Minimum Required for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Minimum Required Under Basel III Fully Phased-In, Amount	$ 90,386	$ 89,422
Minimum Required Under Basel III Fully Phased-In, Ratio	4.00%	4.00%
Common equity tier 1 capital to risk-weighted assets:
Actual, Amount	$ 218,774	$ 216,830
Actual, Ratio	11.88%	11.88%
Minimum Required for Capital Adequacy Purposes, Amount	$ 82,903	$ 82,136
Minimum Required for Capital Adequacy Purposes, Ratio	4.50%	4.50%
Minimum Required Under Basel III Fully Phased-In, Amount	$ 128,960	$ 127,768
Minimum Required Under Basel III Fully Phased-In, Ratio	7.00%	7.00%
Bank
Total capital to risk-weighted assets:
Actual, Amount	$ 242,668	$ 242,142
Actual, Ratio	13.17%	13.27%
Minimum Required for Capital Adequacy Purposes, Amount	$ 147,383	$ 146,015
Minimum Required for Capital Adequacy Purposes, Ratio	8.00%	8.00%
Minimum Required Under Basel III Fully Phased-In, Amount	$ 193,441	$ 191,645
Minimum Required Under Basel III Fully Phased-In, Ratio	10.50%	10.50%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 184,229	$ 182,519
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%
Tier 1 capital to risk-weighted assets:
Actual, Amount	$ 227,478	$ 227,491
Actual, Ratio	12.35%	12.46%
Minimum Required for Capital Adequacy Purposes, Amount	$ 110,537	$ 109,511
Minimum Required for Capital Adequacy Purposes, Ratio	6.00%	6.00%
Minimum Required Under Basel III Fully Phased-In, Amount	$ 156,595	$ 155,141
Minimum Required Under Basel III Fully Phased-In, Ratio	8.50%	8.50%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 147,383	$ 146,015
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	8.00%	8.00%
Tier 1 capital to average assets:
Actual, Amount	$ 227,478	$ 227,491
Actual, Ratio	10.07%	10.18%
Minimum Required for Capital Adequacy Purposes, Amount	$ 90,387	$ 89,414
Minimum Required for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Minimum Required Under Basel III Fully Phased-In, Amount	$ 90,387	$ 89,414
Minimum Required Under Basel III Fully Phased-In, Ratio	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 112,984	$ 111,768
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%
Common equity tier 1 capital to risk-weighted assets:
Actual, Amount	$ 227,478	$ 227,491
Actual, Ratio	12.35%	12.46%
Minimum Required for Capital Adequacy Purposes, Amount	$ 82,903	$ 82,134
Minimum Required for Capital Adequacy Purposes, Ratio	4.50%	4.50%
Minimum Required Under Basel III Fully Phased-In, Amount	$ 128,960	$ 127,763
Minimum Required Under Basel III Fully Phased-In, Ratio	7.00%	7.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 119,749	$ 118,637
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%