FAIR VALUE MEASUREMENTS AND DISCLOSURES - By Balance Sheet Grouping and Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discounts for selling costs	6.00%
Discount for taxes, insurance and maintenance costs	4.00%
Financial assets:
Securities available-for-sale	$ 341,873	$ 318,159
Securities held-to-maturity	98,261	117,698
Carrying Value
Financial assets:
Cash and cash equivalents	82,228	89,201
Securities available-for-sale	341,873	318,159
Securities held-to-maturity	98,211	116,792
Other investments	11,355	11,188
Loans, net	1,259,710	1,244,634
Cash surrender value of life insurance policies	14,335	13,622
Derivative asset	989
Financial liabilities:
Non-interest-bearing deposits	414,921	374,261
Interest-bearing deposits	1,164,509	1,176,589
Securities sold under agreements to repurchase	94,461	85,957
Short-term Federal Home Loan Bank advances		25,000
Long-term Federal Home Loan Bank advances	25,424	25,851
Junior subordinated debentures	22,167	22,167
Fair Value | Level 1
Financial assets:
Cash and cash equivalents	82,228	89,201
Securities available-for-sale	2,059	2,092
Securities held-to-maturity	0	0
Other investments	11,355	11,188
Loans, net	0	0
Cash surrender value of life insurance policies	0	0
Derivative asset	0
Financial liabilities:
Non-interest-bearing deposits	0	0
Interest-bearing deposits	0	0
Securities sold under agreements to repurchase	94,461	85,957
Short-term Federal Home Loan Bank advances		0
Long-term Federal Home Loan Bank advances	0	0
Junior subordinated debentures	0	0
Fair Value | Level 2
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	326,003	316,067
Securities held-to-maturity	98,261	117,698
Other investments	0	0
Loans, net	26,956	17,487
Cash surrender value of life insurance policies	14,335	13,622
Derivative asset	989
Financial liabilities:
Non-interest-bearing deposits	414,921	374,261
Interest-bearing deposits	1,012,633	1,007,137
Securities sold under agreements to repurchase	0	0
Short-term Federal Home Loan Bank advances		25,000
Long-term Federal Home Loan Bank advances	25,808	0
Junior subordinated debentures	22,167	22,167
Fair Value | Level 3
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Other investments	0	0
Loans, net	1,236,133	1,232,497
Cash surrender value of life insurance policies	0	0
Derivative asset	0
Financial liabilities:
Non-interest-bearing deposits	0	0
Interest-bearing deposits	150,879	168,633
Securities sold under agreements to repurchase	0	0
Short-term Federal Home Loan Bank advances		0
Long-term Federal Home Loan Bank advances	0	26,508
Junior subordinated debentures	$ 0	$ 0
Minimum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Period when new appraisals are received	28 days
Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Period when new appraisals are received	42 days