LOANS - Composition of loans receivable by risk rating grade (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Business Activities Loans - Pass
Residential 1-4 family	$ 276,508	$ 248,027
Residential 5+ multifamily	5,611	4,507
Construction of residential 1-4 family	9,824	7,111
Home equity lines of credit	34,102	33,687
Residential real estate	326,045	293,332
Commercial	152,026	120,903
Construction of commercial	3,949	6,525
Commercial real estate	155,975	127,428
Farm land	3,025	2,162
Vacant land	5,739	5,567
Real estate secured	490,784	428,489
Commercial and industrial	98,795	72,887
Municipal	8,475	9,566
Consumer	5,566	6,171
Loans receivable, gross	603,620	517,113
Business Activities Loans - Special mention
Residential 1-4 family	6,111	6,933
Residential 5+ multifamily	1,912	1,815
Construction of residential 1-4 family		887
Home equity lines of credit	528	545
Residential real estate	8,551	10,180
Commercial	3,541	4,801
Construction of commercial
Commercial real estate	3,541	4,801
Farm land
Vacant land	63	69
Real estate secured	12,155	15,050
Commercial and industrial	1,716	1,214
Municipal
Consumer	27	18
Loans receivable, gross	13,898	16,282
Business Activities Loans - Substandard
Residential 1-4 family	3,955	6,444
Residential 5+ multifamily	167	89
Construction of residential 1-4 family
Home equity lines of credit	840	785
Residential real estate	4,962	7,318
Commercial	7,035	3,742
Construction of commercial	117
Commercial real estate	7,152	3,742
Farm land	1,008	1,031
Vacant land	28	2,927
Real estate secured	13,150	15,018
Commercial and industrial	635	555
Municipal
Consumer		6
Loans receivable, gross	13,785	15,579
Business Activities Loans - Doubtful
Residential 1-4 family	89	91
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	89	91
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured	89	91
Commercial and industrial		1
Municipal
Consumer
Loans receivable, gross	89	92
Business Activities Loans - Loss
Residential 1-4 family
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured
Commercial and industrial
Municipal
Consumer
Loans receivable, gross
Business Activities Loans - Total
Residential 1-4 family	286,663	261,495
Residential 5+ multifamily	7,690	6,411
Construction of residential 1-4 family	9,824	7,998
Home equity lines of credit	35,470	35,017
Residential real estate	339,647	310,921
Commercial	162,602	129,446
Construction of commercial	4,066	6,525
Commercial real estate	166,668	135,971
Farm land	4,033	3,193
Vacant land	5,830	8,563
Real estate secured	516,178	458,648
Commercial and industrial	101,146	74,657
Municipal	8,475	9,566
Consumer	5,593	6,195
Loans receivable, gross	631,392	549,066
Acquired Loans - Pass
Residential 1-4 family	6,133	6,824
Residential 5+ multifamily	5,741	6,136
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	11,874	12,960
Commercial	72,288	80,406
Construction of commercial	1,881	4,612
Commercial real estate	74,169	85,018
Farm land
Vacant land
Real estate secured	86,043	97,978
Commercial and industrial	28,566	45,363
Municipal
Consumer	65	71
Loans receivable, gross	114,674	143,412
Acquired Loans - Special Mention
Residential 1-4 family	110	199
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	110	199
Commercial	4,082	4,005
Construction of commercial
Commercial real estate	4,082	4,005
Farm land
Vacant land
Real estate secured	4,192	4,204
Commercial and industrial	1,238	875
Municipal
Consumer	3	6
Loans receivable, gross	5,433	5,085
Acquired Loans - Substandard
Residential 1-4 family	779	776
Residential 5+ multifamily	123
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	902	776
Commercial	5,371	4,418
Construction of commercial	258	262
Commercial real estate	5,371	4,680
Farm land
Vacant land
Real estate secured	6,531	5,456
Commercial and industrial	205	443
Municipal
Consumer
Loans receivable, gross	6,736	5,899
Acquired Loans - Doubtful
Residential 1-4 family
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured
Commercial and industrial		83
Municipal
Consumer
Loans receivable, gross		83
Acquired Loans - Loss
Residential 1-4 family
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured
Commercial and industrial
Municipal
Consumer
Loans receivable, gross
Acquired Loans - Total
Residential 1-4 family	7,022	7,799
Residential 5+ multifamily	5,864	6,136
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	12,886	13,935
Commercial	81,741	88,829
Construction of commercial	2,139	4,874
Commercial real estate	81,741	93,703
Farm land
Vacant land
Real estate secured	96,766	107,638
Commercial and industrial	30,009	46,764
Municipal
Consumer	68	77
Loans receivable, gross	$ 126,843	$ 154,479