LOANS - Composition of loans receivable and allowance for loan losses (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Collectively evaluated Loans
Residential 1-4 family	$ 230,456	$ 225,419
Residential 5+ multifamily	3,856	3,894
Construction of residential 1-4 family	2,044	1,876
Home equity credit	33,447	33,689
Residential real estate	269,803	264,878
Commercial	90,750	87,059
Construction of commercial	10,094	10,948
Commercial real estate	100,844	98,007
Farm land	2,984	3,018
Vacant land	5,945	5,972
Real estate secured	379,576	371,875
Commercial and industrial	46,373	45,584
Municipal	4,016	4,252
Consumer	3,524	3,710
Unallocated allowance
Totals	433,489	425,421
Collectively evaluated Allowance
Residential 1-4 family	894	897
Residential 5+ multifamily	20	20
Construction of residential 1-4 family	12	11
Home equity credit	360	363
Residential real estate	1,286	1,291
Commercial	1,013	977
Construction of commercial	113	126
Commercial real estate	1,126	1,103
Farm land	60	61
Vacant land	65	64
Real estate secured	2,537	2,519
Commercial and industrial	539	519
Municipal	40	43
Consumer	34	36
Unallocated allowance
Totals	3,150	3,117
Individually evaluated Loans
Residential 1-4 family	6,152	5,694
Residential 5+ multifamily	948	954
Construction of residential 1-4 family
Home equity credit	494	450
Residential real estate	7,594	7,098
Commercial	4,764	4,794
Construction of commercial	136
Commercial real estate	4,900	4,794
Farm land	384	384
Vacant land	3,093	3,095
Real estate secured	15,971	15,371
Commercial and industrial	657	708
Municipal
Consumer	109	179
Unallocated allowance
Totals	16,737	16,258
Individually evaluated Allowance
Residential 1-4 family	624	617
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity credit	20	30
Residential real estate	644	647
Commercial	365	282
Construction of commercial
Commercial real estate	365	282
Farm land
Vacant land	101	101
Real estate secured	1,110	1,030
Commercial and industrial	38	42
Municipal
Consumer	23	69
Unallocated allowance
Totals	1,171	1,141
Total portfolio Loans
Residential 1-4 family	236,608	231,113
Residential 5+ multifamily	4,804	4,848
Construction of residential 1-4 family	2,044	1,876
Home equity credit	33,941	34,139
Residential real estate	277,397	271,976
Commercial	95,514	91,853
Construction of commercial	10,230	10,948
Commercial real estate	105,744	102,801
Farm land	3,368	3,402
Vacant land	9,038	9,067
Real estate secured	395,547	387,246
Commercial and industrial	47,030	46,292
Municipal	4,016	4,252
Consumer	3,633	3,889
Unallocated allowance
Totals	450,226	441,679
Total portfolio Allowance
Residential 1-4 family	1,518	1,514
Residential 5+ multifamily	20	20
Construction of residential 1-4 family	12	11
Home equity credit	380	393
Residential real estate	1,930	1,938
Commercial	1,378	1,259
Construction of commercial	113	126
Commercial real estate	1,491	1,385
Farm land	60	61
Vacant land	166	165
Real estate secured	3,647	3,549
Commercial and industrial	577	561
Municipal	40	43
Consumer	57	105
Unallocated allowance	573	425
Totals	$ 4,894	$ 4,683