REGULATORY CAPITAL REQUIREMENTS (Details) - Basel III - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Common Equity Tier 1 Capital to Risk Weighted Assets:
Actual, Amount	$ 312,731	$ 249,921
Actual, Ratio (as a percent)	10.80%	9.30%
Minimum Capital Adequacy Requirement, Amount	$ 130,065	$ 121,074
Minimum Capital Adequacy Requirement, Ratio (as a percent)	4.50%	4.50%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)
Total Capital (to risk weighted assets)
Actual, Amount	$ 434,184	$ 366,393
Actual, Ratio (as a percent)	15.00%	13.60%
For Capital Adequacy Purposes, Amount	$ 231,226	$ 215,243
For Capital Adequacy Purposes, Ratio (as a percent)	8.00%	8.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)
Tier 1 Capital (to risk weighted assets)
Actual, Amount	$ 328,004	$ 265,373
Actual, Ratio (as a percent)	11.30%	9.90%
For Capital Adequacy Purposes, Amount	$ 173,419	$ 161,432
For Capital Adequacy Purposes, Ratio (as a percent)	6.00%	6.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)
Tier 1 Capital (to average assets)
Actual, Amount	$ 328,004	$ 265,373
Actual, Ratio (as a percent)	8.60%	7.60%
For Capital Adequacy Purposes, Amount	$ 152,391	$ 140,490
For Capital Adequacy Purposes, Ratio (as a percent)	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)
Bank
Common Equity Tier 1 Capital to Risk Weighted Assets:
Actual, Amount	$ 378,352	$ 319,351
Actual, Ratio (as a percent)	13.10%	11.90%
Minimum Capital Adequacy Requirement, Amount	$ 130,054	$ 121,074
Minimum Capital Adequacy Requirement, Ratio (as a percent)	4.50%	4.50%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 187,856	$ 174,884
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	6.50%	6.50%
Total Capital (to risk weighted assets)
Actual, Amount	$ 404,532	$ 340,371
Actual, Ratio (as a percent)	14.00%	12.70%
For Capital Adequacy Purposes, Amount	$ 231,208	$ 215,242
For Capital Adequacy Purposes, Ratio (as a percent)	8.00%	8.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 289,010	$ 269,053
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	10.00%	10.00%
Tier 1 Capital (to risk weighted assets)
Actual, Amount	$ 378,352	$ 319,351
Actual, Ratio (as a percent)	13.10%	11.90%
For Capital Adequacy Purposes, Amount	$ 173,406	$ 161,432
For Capital Adequacy Purposes, Ratio (as a percent)	6.00%	6.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 231,208	$ 215,242
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	8.00%	8.00%
Tier 1 Capital (to average assets)
Actual, Amount	$ 378,352	$ 319,351
Actual, Ratio (as a percent)	9.90%	9.10%
For Capital Adequacy Purposes, Amount	$ 152,382	$ 140,492
For Capital Adequacy Purposes, Ratio (as a percent)	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 190,478	$ 175,615
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	5.00%	5.00%