LOANS - Composition of loans receivable and loans held-for-sale (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Business Activites Loans
Residential 1-4 family	$ 297,111	$ 295,030
Residential 5+ multifamily	9,938	7,976
Construction of residential 1-4 family	10,990	10,951
Home equity lines of credit	35,033	35,487
Residential real estate	353,072	349,444
Commercial	176,318	155,628
Construction of commercial	4,352	3,481
Commercial real estate	180,670	159,109
Farm land	4,599	3,914
Vacant land	6,567	6,600
Real estate secured	544,908	519,067
Commercial and industrial	107,491	121,144
Municipal	8,737	8,626
Consumer	5,080	5,312
Loans receivable, gross	666,216	654,149
Deferred loan origination fees and costs, net	1,095	1,247
Allowance for loan losses	(5,966)	(5,816)
Loans receivable, net	661,345	649,580
Loans held-for-sale
Residential 1-4 family	53
Acquired Loans
Residential 1-4 family	6,016	6,098
Residential 5+ multifamily	5,526	5,649
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	11,542	11,747
Commercial	72,308	79,854
Construction of commercial	1,857	1,917
Commercial real estate	74,165	81,771
Farm land
Vacant land
Real estate secured	85,707	93,518
Commercial and industrial	17,869	20,329
Municipal
Consumer	63	68
Loans receivable, gross	103,639	113,915
Deferred loan origination fees and costs, net
Allowance for loan losses	(319)	(311)
Loans receivable, net	103,320	113,604
Loans held-for-sale
Residential 1-4 family
Total
Residential 1-4 family	303,127	301,128
Residential 5+ multifamily	15,464	13,625
Construction of residential 1-4 family	10,990	10,951
Home equity lines of credit	35,033	35,487
Residential real estate	364,614	361,191
Commercial	248,626	235,482
Construction of commercial	6,209	5,398
Commercial real estate	254,835	240,880
Farm land	4,599	3,914
Vacant land	6,567	6,600
Real estate secured	630,615	612,585
Commercial and industrial	125,360	141,473
Municipal	8,737	8,626
Consumer	5,143	5,380
Loans receivable, gross	769,855	768,064
Deferred loan origination fees and costs, net	1,095	1,247
Allowance for loan losses	(6,285)	(6,127)
Loans receivable, net	764,665	763,184
Loans held-for-sale
Residential 1-4 family	$ 53