LOANS AND THE ALLOWANCE FOR CREDIT LOSSES - Summary of Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment
Loans	$ 1,514,209	$ 1,414,280
Installment
Financing Receivable, Recorded Investment
Loans	5,790	10,115
All other loans
Financing Receivable, Recorded Investment
Loans	17	44
Unrated
Financing Receivable, Recorded Investment
Loans	444,789	473,829
Unrated | Installment
Financing Receivable, Recorded Investment
Loans	5,778	10,093
Unrated | All other loans
Financing Receivable, Recorded Investment
Loans	17	44
Pass
Financing Receivable, Recorded Investment
Loans	933,698	758,598
Pass-Watch
Financing Receivable, Recorded Investment
Loans	99,418	148,591
Special Mention
Financing Receivable, Recorded Investment
Loans	1,143	10,580
Sub-standard
Financing Receivable, Recorded Investment
Loans	35,161	22,682
Sub-standard | Installment
Financing Receivable, Recorded Investment
Loans	12	22
Commercial, financial and agricultural
Financing Receivable, Recorded Investment
Loans	257,078	237,451
Commercial, financial and agricultural | Unrated
Financing Receivable, Recorded Investment
Loans	102	116
Commercial, financial and agricultural | Pass
Financing Receivable, Recorded Investment
Loans	215,891	179,932
Commercial, financial and agricultural | Pass-Watch
Financing Receivable, Recorded Investment
Loans	24,215	45,977
Commercial, financial and agricultural | Special Mention
Financing Receivable, Recorded Investment
Loans	322	4,177
Commercial, financial and agricultural | Sub-standard
Financing Receivable, Recorded Investment
Loans	16,548	7,249
Municipal
Financing Receivable, Recorded Investment
Loans	114,509	105,421
Municipal | Pass
Financing Receivable, Recorded Investment
Loans	110,864	92,069
Municipal | Pass-Watch
Financing Receivable, Recorded Investment
Loans	2,824	13,352
Municipal | Special Mention
Financing Receivable, Recorded Investment
Loans	821
Real estate loans - residential
Financing Receivable, Recorded Investment
Loans	447,527	468,443
Real estate loans - residential | First mortgage
Financing Receivable, Recorded Investment
Loans	409,936	426,276
Real estate loans - residential | Second mortgage
Financing Receivable, Recorded Investment
Loans	37,591	42,167
Real estate loans - residential | Unrated | First mortgage
Financing Receivable, Recorded Investment
Loans	400,961	420,798
Real estate loans - residential | Unrated | Second mortgage
Financing Receivable, Recorded Investment
Loans	37,367	42,167
Real estate loans - residential | Pass | First mortgage
Financing Receivable, Recorded Investment
Loans	7,392	4,733
Real estate loans - residential | Pass-Watch | First mortgage
Financing Receivable, Recorded Investment
Loans	481	164
Real estate loans - residential | Pass-Watch | Second mortgage
Financing Receivable, Recorded Investment
Loans	224
Real estate loans - residential | Sub-standard | First mortgage
Financing Receivable, Recorded Investment
Loans	1,102	581
Real estate loans - commercial
Financing Receivable, Recorded Investment
Loans	636,755	558,004
Real estate loans - commercial | Owner occupied
Financing Receivable, Recorded Investment
Loans	226,573	221,008
Real estate loans - commercial | Non-owner occupied
Financing Receivable, Recorded Investment
Loans	410,182	336,996
Real estate loans - commercial | Pass | Owner occupied
Financing Receivable, Recorded Investment
Loans	186,494	162,106
Real estate loans - commercial | Pass | Non-owner occupied
Financing Receivable, Recorded Investment
Loans	369,566	290,503
Real estate loans - commercial | Pass-Watch | Owner occupied
Financing Receivable, Recorded Investment
Loans	25,492	41,477
Real estate loans - commercial | Pass-Watch | Non-owner occupied
Financing Receivable, Recorded Investment
Loans	38,706	44,485
Real estate loans - commercial | Special Mention | Owner occupied
Financing Receivable, Recorded Investment
Loans		5,959
Real estate loans - commercial | Special Mention | Non-owner occupied
Financing Receivable, Recorded Investment
Loans		444
Real estate loans - commercial | Sub-standard | Owner occupied
Financing Receivable, Recorded Investment
Loans	14,587	11,466
Real estate loans - commercial | Sub-standard | Non-owner occupied
Financing Receivable, Recorded Investment
Loans	1,910	1,564
Real estate loans - construction
Financing Receivable, Recorded Investment
Loans	52,533	34,802
Real estate loans - construction | Residential
Financing Receivable, Recorded Investment
Loans	2,530	2,422
Real estate loans - construction | Commercial
Financing Receivable, Recorded Investment
Loans	50,003	32,380
Real estate loans - construction | Unrated | Residential
Financing Receivable, Recorded Investment
Loans	412	477
Real estate loans - construction | Unrated | Commercial
Financing Receivable, Recorded Investment
Loans	152	134
Real estate loans - construction | Pass | Residential
Financing Receivable, Recorded Investment
Loans	2,118	1,945
Real estate loans - construction | Pass | Commercial
Financing Receivable, Recorded Investment
Loans	41,373	27,310
Real estate loans - construction | Pass-Watch | Commercial
Financing Receivable, Recorded Investment
Loans	7,476	3,136
Real estate loans - construction | Sub-standard | Commercial
Financing Receivable, Recorded Investment
Loans	$ 1,002	$ 1,800