LOANS - Composition of loans receivable and the allowance for loan losses (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Collectively evaluated, Loans
Residential 1-4 family	$ 212,106	$ 191,886
Residential 5+ multifamily	3,916	2,913
Construction of residential 1-4 family	732	2,379
Home equity credit	33,192	33,697
Residential real estate	249,946	230,875
Commercial	87,462	81,635
Construction of commercial	9,110	5,802
Commercial real estate	96,572	87,437
Farm land	4,233	4,320
Vacant land	6,095	5,795
Real estate secured	356,846	328,427
Commercial and industrial	37,995	37,073
Municipal	4,049	3,378
Consumer	3,835	4,061
Unallocated allowance
Totals	402,725	372,939
Collectively evaluated, Allowance
Residential 1-4 family	842	743
Residential 5+ multifamily	20	22
Construction of residential 1-4 family	3	10
Home equity credit	366	365
Residential real estate	1,231	1,140
Commercial	989	931
Construction of commercial	98	64
Commercial real estate	1,087	995
Farm land	67	66
Vacant land	66	70
Real estate secured	2,451	2,271
Commercial and industrial	456	467
Municipal	40	36
Consumer	37	39
Unallocated allowance
Totals	2,984	2,813
Individually evaluated, Loans
Residential 1-4 family	6,548	6,666
Residential 5+ multifamily	965	976
Construction of residential 1-4 family
Home equity credit	369	465
Residential real estate	7,882	8,107
Commercial	5,379	5,747
Construction of commercial	19	21
Commercial real estate	5,398	5,768
Farm land
Vacant land	3,120	4,131
Real estate secured	16,400	18,006
Commercial and industrial	1,040	1,021
Municipal
Consumer	67	120
Unallocated allowance
Totals	17,507	19,147
Individually evaluated, Allowance
Residential 1-4 family	611	652
Residential 5+ multifamily	50	50
Construction of residential 1-4 family
Home equity credit		92
Residential real estate	661	794
Commercial	296	64
Construction of commercial	20
Commercial real estate	316	64
Farm land
Vacant land	4	164
Real estate secured	981	1,022
Commercial and industrial	85	32
Municipal
Consumer	33	53
Unallocated allowance		440
Totals	1,099	1,547
Total Portfolio, Loans
Residential 1-4 family	218,654	198,552
Residential 5+ multifamily	4,881	3,889
Construction of residential 1-4 family	732	2,379
Home equity credit	33,561	34,162
Residential real estate	257,828	238,982
Commercial	92,841	87,382
Construction of commercial	9,129	5,823
Commercial real estate	101,970	93,205
Farm land	4,233	4,320
Vacant land	9,215	9,926
Real estate secured	373,246	346,433
Commercial and industrial	39,035	38,094
Municipal	4,049	3,378
Consumer	3,902	4,181
Unallocated allowance
Totals	420,232	392,086
Total Portfolio, Allowance
Residential 1-4 family	1,453	1,395
Residential 5+ multifamily	70	72
Construction of residential 1-4 family	3	10
Home equity credit	366	457
Residential real estate	1,892	1,934
Commercial	1,285	995
Construction of commercial	118	64
Commercial real estate	1,403	1,059
Farm land	67	66
Vacant land	70	234
Real estate secured	3,432	3,293
Commercial and industrial	541	499
Municipal	40	36
Consumer	70	92
Unallocated allowance	549	440
Totals	$ 4,632	$ 4,360