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	Jun. 30, 2017	Dec. 31, 2016
Total capital to risk-weighted assets:
Actual, Amount	$ 210,959	$ 149,468
Actual, Ratio	14.54%	10.86%
Minimum Required for Capital Adequacy Purposes, Amount	$ 116,085	$ 110,083
Minimum Required for Capital Adequacy Purposes, Ratio	8.00%	8.00%
Tier 1 capital to risk-weighted assets:
Actual, Amount	$ 198,434	$ 137,984
Actual, Ratio	13.68%	10.03%
Minimum Required for Capital Adequacy Purposes, Amount	$ 87,063	$ 82,562
Minimum Required for Capital Adequacy Purposes, Ratio	6.00%	6.00%
Tier 1 capital to average assets:
Actual, Amount	$ 198,434	$ 137,984
Actual, Ratio	10.68%	7.71%
Minimum Required for Capital Adequacy Purposes, Amount	$ 74,355	$ 71,560
Minimum Required for Capital Adequacy Purposes, Ratio	4.00%	4.00%
Common equity tier 1 capital to risk-weighted assets:
Actual, Amount	$ 188,124	$ 127,674
Actual, Ratio	12.96%	9.28%
Minimum Required for Capital Adequacy Purposes, Amount	$ 65,298	$ 61,922
Minimum Required for Capital Adequacy Purposes, Ratio	4.50%	4.50%
Subordinated Debentures | Subordinated Debentures II, Subordinated Debentures III, and DCB Debentures I
Common equity tier 1 capital to risk-weighted assets:
Debenture issued	$ 10,310	$ 10,310
Bank
Total capital to risk-weighted assets:
Actual, Amount	$ 197,899	$ 173,528
Actual, Ratio	13.64%	12.63%
Minimum Required for Capital Adequacy Purposes, Amount	$ 116,102	$ 109,947
Minimum Required for Capital Adequacy Purposes, Ratio	8.00%	8.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	$ 145,127	$ 137,434
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	10.00%	10.00%
Tier 1 capital to risk-weighted assets:
Actual, Amount	$ 185,374	$ 162,044
Actual, Ratio	12.77%	11.79%
Minimum Required for Capital Adequacy Purposes, Amount	$ 87,076	$ 82,460
Minimum Required for Capital Adequacy Purposes, Ratio	6.00%	6.00%
To Be Well Capitalized Under Prompt Correct Action Provisions, Amount	$ 116,102	$ 109,947
To Be Well Capitalized Under Prompt Correct Action Provisions, Ratio	8.00%	8.00%
Tier 1 capital to average assets:
Actual, Amount	$ 185,374	$ 162,044
Actual, Ratio	9.98%	9.06%
Minimum Required for Capital Adequacy Purposes, Amount	$ 74,313	$ 71,505
Minimum Required for Capital Adequacy Purposes, Ratio	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 92,892	$ 89,381
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	$ 185,374	$ 162,044
Actual, Ratio	12.77%	11.79%
Minimum Required for Capital Adequacy Purposes, Amount	$ 65,307	$ 61,845
Minimum Required for Capital Adequacy Purposes, Ratio	4.50%	4.50%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 94,333	$ 89,332
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%