FAIR VALUE - FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Financial assets
Interest bearing time deposits	$ 1,830	$ 5,029
Securities available for sale	318,177	273,770
Trading assets	0	5,592
Loans held for sale	1,231	724
Interest receivable	3,951	3,715
Financial liabilities
Short-term Federal Home Loan Bank advances	8,400
Long-term Federal Home Loan Bank advances	90,332	92,500
Interest payable	838	692
Carrying Value
Financial assets
Cash and cash equivalents	39,172	43,250
Interest bearing time deposits	1,830	5,029
Securities available for sale	318,177	273,770
Trading assets		5,592
Mortgage loans held for sale	1,231	724
Net Loans	640,815	648,466
Federal Home Loan Bank stock	7,034	7,034
Interest receivable	3,951	3,715
Financial liabilities
Total deposits	815,273	802,981
Repurchase agreements	19,900	20,873
Short-term Federal Home Loan Bank advances	8,400
Long-term Federal Home Loan Bank advances	90,332
Federal Home Loan Bank advances		92,500
Note payable	3,321	4,090
Subordinated debentures	7,217	7,217
Interest payable	838	692
Fair Value
Financial assets
Cash and cash equivalents	39,172	43,250
Interest bearing time deposits	1,830	5,029
Securities available for sale	318,177	273,770
Trading assets		5,592
Mortgage loans held for sale	1,269	750
Net Loans	639,421	648,234
Interest receivable	3,951	3,715
Financial liabilities
Total deposits	816,282	803,145
Repurchase agreements	19,968	21,006
Short-term Federal Home Loan Bank advances	8,393
Long-term Federal Home Loan Bank advances	86,899
Federal Home Loan Bank advances		91,015
Note payable	3,560	4,564
Subordinated debentures	7,212	7,210
Interest payable	838	692
Quoted Prices In Active Markets for Identical Assets (Level 1)
Financial assets
Cash and cash equivalents	39,172	43,250
Interest bearing time deposits	1,830	5,029
Securities available for sale	340	340
Trading assets		1,608
Financial liabilities
Total deposits	621,139	607,617
Significant Other Observable Inputs (Level 2)
Financial assets
Securities available for sale	317,837	273,430
Trading assets		3,984
Mortgage loans held for sale	1,269	750
Interest receivable	1,378	1,334
Financial liabilities
Total deposits	195,143	195,528
Repurchase agreements	19,968	21,006
Short-term Federal Home Loan Bank advances	8,393
Long-term Federal Home Loan Bank advances	86,899
Federal Home Loan Bank advances		91,015
Note payable	3,560	4,564
Interest payable	825	681
Significant Unobservable Inputs (Level 3)
Financial assets
Net Loans	639,421	648,234
Interest receivable	2,573	2,381
Financial liabilities
Subordinated debentures	7,212	7,210
Interest payable	13	11
Parent Company
Financial assets
Securities available for sale	$ 70	$ 70