LOANS AND ALLOWANCE FOR LOAN LOSSES - Internal Risk Rating Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	$ 1,105,306	$ 1,051,968
Commercial
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	783,909	756,619
Commercial | Commercial Business
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	380,363	386,569
Commercial | Commercial Real Estate
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	301,856	271,460
Commercial | Acquisition & Development
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	101,690	98,590
Residential
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	246,214	215,452
Home Equity
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	62,400	65,386
Consumer
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	12,783	14,511
Pass
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	1,055,817	1,000,169
Pass | Commercial
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	739,504	708,460
Pass | Commercial | Commercial Business
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	371,041	376,734
Pass | Commercial | Commercial Real Estate
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	271,751	240,851
Pass | Commercial | Acquisition & Development
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	96,712	90,875
Pass | Residential
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	242,823	212,869
Pass | Home Equity
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	61,037	64,706
Pass | Consumer
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	12,453	14,134
Special Mention
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	33,263	33,726
Special Mention | Commercial
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	28,742	31,178
Special Mention | Commercial | Commercial Business
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	4,816	2,933
Special Mention | Commercial | Commercial Real Estate
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	22,995	26,340
Special Mention | Commercial | Acquisition & Development
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	931	1,905
Special Mention | Residential
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	3,036	1,664
Special Mention | Home Equity
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	1,311	582
Special Mention | Consumer
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	174	302
Substandard
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	12,997	13,847
Substandard | Commercial
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	12,697	12,949
Substandard | Commercial | Commercial Business
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	4,506	6,833
Substandard | Commercial | Commercial Real Estate
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	5,961	3,532
Substandard | Commercial | Acquisition & Development
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	2,230	2,584
Substandard | Residential
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	223	787
Substandard | Home Equity
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	52	98
Substandard | Consumer
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	25	13
Doubtful
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	3,229	4,226
Doubtful | Commercial
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	2,966	4,032
Doubtful | Commercial | Commercial Business
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	0	69
Doubtful | Commercial | Commercial Real Estate
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	1,149	737
Doubtful | Commercial | Acquisition & Development
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	1,817	3,226
Doubtful | Residential
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	132	132
Doubtful | Home Equity
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	0	0
Doubtful | Consumer
Classes of the loan portfolio summarized by credit quality indicators:
Total Loans	$ 131	$ 62