LOANS - Composition of loans receivable by delinquency status (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Business Activities Loans - Current
Residential 1-4 family	$ 267,101	$ 254,152
Residential 5+ multifamily	7,946	6,254
Construction of residential 1-4 family	9,160	7,826
Home equity lines of credit	33,395	33,744
Residential real estate	317,602	301,976
Commercial	133,401	126,440
Construction of commercial	10,145	6,525
Commercial real estate	143,546	132,965
Farm land	2,983	2,172
Vacant land	5,371	5,734
Real estate secured	469,502	442,847
Commercial and industrial	90,851	73,698
Municipal	9,364	9,566
Consumer	5,763	6,096
Loans receivable, gross	575,480	532,207
Business Activities Loans - Past due 1-29 days
Residential 1-4 family	1,334	$ 1,781
Residential 5+ multifamily	60
Construction of residential 1-4 family	172	$ 172
Home equity lines of credit	434	363
Residential real estate	2,000	2,316
Commercial	$ 156	$ 1,618
Construction of commercial
Commercial real estate	$ 156	$ 1,618
Farm land	$ 301	$ 298
Vacant land
Real estate secured	$ 2,457	$ 4,232
Commercial and industrial	$ 398	$ 906
Municipal
Consumer	$ 24	$ 61
Loans receivable, gross	2,879	5,199
Business Activities Loans - Past due 30-59 days
Residential 1-4 family	$ 3,509	1,931
Residential 5+ multifamily		$ 68
Construction of residential 1-4 family
Home equity lines of credit	$ 218	$ 306
Residential real estate	3,727	2,305
Commercial	$ 833	$ 474
Construction of commercial
Commercial real estate	$ 833	$ 474
Farm land
Vacant land	$ 4	$ 6
Real estate secured	4,564	2,785
Commercial and industrial	$ 973	$ 35
Municipal
Consumer	$ 15	$ 21
Loans receivable, gross	5,552	2,841
Business Activities Loans - Past due 60-89 days
Residential 1-4 family	$ 75	$ 683
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	$ 43	$ 101
Residential real estate	118	$ 784
Commercial	$ 668
Construction of commercial
Commercial real estate	$ 668
Farm land
Vacant land
Real estate secured	$ 786	$ 784
Commercial and industrial	$ 288
Municipal
Consumer	$ 4	$ 17
Loans receivable, gross	$ 1,078	801
Business Activities Loans - Past due 90-179 days
Residential 1-4 family		$ 973
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	$ 150	$ 113
Residential real estate	150	1,086
Commercial	$ 342	$ 233
Construction of commercial
Commercial real estate	$ 342	$ 233
Farm land
Vacant land
Real estate secured	$ 492	$ 1,319
Commercial and industrial
Municipal
Consumer
Loans receivable, gross	$ 492	$ 1,319
Business Activities Loans - Past due 180 days and over
Residential 1-4 family	2,862	1,975
Residential 5+ multifamily	$ 89	$ 89
Construction of residential 1-4 family
Home equity lines of credit	$ 89	$ 390
Residential real estate	3,040	2,454
Commercial	$ 915	$ 681
Construction of commercial
Commercial real estate	$ 915	$ 681
Farm land	723	723
Vacant land	2,823	2,823
Real estate secured	7,501	6,681
Commercial and industrial	$ 18	$ 18
Municipal
Consumer
Loans receivable, gross	$ 7,519	$ 6,699
Business Activities Loans - Past due 30 days and over
Residential 1-4 family	6,446	5,562
Residential 5+ multifamily	$ 89	$ 157
Construction of residential 1-4 family
Home equity lines of credit	$ 500	$ 910
Residential real estate	7,035	6,629
Commercial	$ 2,758	$ 1,388
Construction of commercial
Commercial real estate	$ 2,758	$ 1,388
Farm land	723	723
Vacant land	2,827	2,829
Real estate secured	13,343	11,569
Commercial and industrial	$ 1,279	$ 53
Municipal
Consumer	$ 19
Loans receivable, gross	$ 14,641	$ 11,660
Business Activities Loans - Accruing 90 days and over
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 - Non-accrual
Residential 1-4 family	$ 5,834	$ 5,671
Residential 5+ multifamily		$ 89
Construction of residential 1-4 family
Home equity lines of credit	$ 701	$ 601
Residential real estate	6,535	6,361
Commercial	$ 2,557	$ 2,349
Construction of commercial
Commercial real estate	$ 2,557	$ 2,349
Farm land	1,024	1,031
Vacant land	2,854	2,855
Real estate secured	12,970	12,596
Commercial and industrial	$ 447	$ 461
Municipal
Consumer		$ 80
Loans receivable, gross	$ 13,417	13,137
Acquired Loans - Current
Residential 1-4 family	6,664	6,823
Residential 5+ multifamily	$ 5,168	$ 6,136
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	$ 11,832	$ 12,959
Commercial	80,481	81,140
Construction of commercial	4,645	4,612
Commercial real estate	$ 85,126	$ 85,752
Farm land
Vacant land
Real estate secured	$ 96,958	$ 98,711
Commercial and industrial	$ 33,725	$ 46,128
Municipal
Consumer	$ 72	$ 77
Loans receivable, gross	$ 130,755	$ 144,916
Acquired Loans - Past due 1-29 days
Residential 1-4 family
Residential 5+ multifamily	$ 759
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	$ 759
Commercial	$ 2,635	$ 4,848
Construction of commercial
Commercial real estate	$ 2,635	$ 4,848
Farm land
Vacant land
Real estate secured	$ 3,394	$ 4,848
Commercial and industrial	$ 844	$ 471
Municipal
Consumer	$ 4
Loans receivable, gross	$ 4,242	$ 5,319
Acquired Loans - Past due 30-59 days
Residential 1-4 family
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate
Commercial	$ 1,605	$ 916
Construction of commercial
Commercial real estate	$ 1,605	$ 916
Farm land
Vacant land
Real estate secured	$ 1,605	$ 916
Commercial and industrial	$ 123	$ 83
Municipal
Consumer
Loans receivable, gross	$ 1,728	$ 999
Acquired Loans - Past due 60-89 days
Residential 1-4 family		$ 110
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate		$ 110
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured		$ 110
Commercial and industrial	$ 825	$ 82
Municipal
Consumer
Loans receivable, gross	$ 825	$ 192
Acquired Loans - Past due 90-179 days
Residential 1-4 family
Residential 5+ multifamily	$ 123
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	$ 123
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured	$ 123
Commercial and industrial
Municipal
Consumer
Loans receivable, gross	$ 123
Acquired Loans - Past due 180 days and over
Residential 1-4 family	$ 779	$ 866
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	$ 779	$ 866
Commercial	1,779	1,925
Construction of commercial	258	262
Commercial real estate	$ 2,037	$ 2,187
Farm land
Vacant land
Real estate secured	$ 2,816	$ 3,053
Commercial and industrial
Municipal
Consumer
Loans receivable, gross	$ 2,816	$ 3,053
Acquired Loans - Past due 30 days and over
Residential 1-4 family	779	$ 976
Residential 5+ multifamily	$ 123
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	$ 902	$ 976
Commercial	3,384	2,841
Construction of commercial	258	262
Commercial real estate	$ 3,642	$ 3,103
Farm land
Vacant land
Real estate secured	$ 4,544	$ 4,079
Commercial and industrial	$ 948	$ 165
Municipal
Consumer
Loans receivable, gross	$ 5,492	$ 4,244
Acquired Loans - Accruing 90 days and over
Residential 1-4 family		$ 90
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate		$ 90
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured		$ 90
Commercial and industrial
Municipal
Consumer
Loans receivable, gross		$ 90
Acquired Loans - Non-accrual
Residential 1-4 family	$ 779	$ 766
Residential 5+ multifamily	$ 123
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	$ 902	$ 766
Commercial	1,839	2,000
Construction of commercial	258	262
Commercial real estate	$ 2,097	$ 2,262
Farm land
Vacant land
Real estate secured	$ 2,999	$ 3,038
Commercial and industrial	$ 414
Municipal
Consumer
Loans receivable, gross	$ 3,413	$ 3,038