LOANS - Composition of loans receivable and the allowance for loan losses (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Collectively evaluated, Loans
Residential 1-4 family	$ 191,886	$ 182,695
Residential 5+ multifamily	2,913	2,437
Construction of residential 1-4 family	2,379	4,606
Home equity credit	33,697	34,333
Residential real estate	230,875	224,071
Commercial	81,635	74,419
Construction of commercial	5,802	7,049
Commercial real estate	87,437	81,468
Farm land	4,320	4,095
Vacant land	5,795	9,021
Real estate secured	328,427	318,655
Commercial and industrial	37,073	28,091
Municipal	3,378	2,415
Consumer	4,061	4,431
Unallocated allowance
Totals	372,939	353,592
Collectively evaluated, Allowance
Residential 1-4 family	743	762
Residential 5+ multifamily	22	17
Construction of residential 1-4 family	10	17
Home equity credit	365	382
Residential real estate	1,140	1,178
Commercial	931	840
Construction of commercial	64	77
Commercial real estate	995	917
Farm land	66	35
Vacant land	70	104
Real estate secured	2,271	2,234
Commercial and industrial	467	368
Municipal	36	24
Consumer	39	44
Unallocated allowance
Totals	2,813	2,670
Individually evaluated, Loans
Residential 1-4 family	6,666	4,981
Residential 5+ multifamily	976	750
Construction of residential 1-4 family		699
Home equity credit	465	288
Residential real estate	8,107	6,718
Commercial	5,747	7,539
Construction of commercial	21	20
Commercial real estate	5,768	7,559
Farm land		830
Vacant land	4,131	3,807
Real estate secured	18,006	18,914
Commercial and industrial	1,021	1,267
Municipal
Consumer	120	65
Unallocated allowance
Totals	19,147	20,246
Individually evaluated, Allowance
Residential 1-4 family	652	297
Residential 5+ multifamily	50	4
Construction of residential 1-4 family
Home equity credit	92
Residential real estate	794	301
Commercial	64	202
Construction of commercial		20
Commercial real estate	64	222
Farm land		150
Vacant land	164	120
Real estate secured	1,022	793
Commercial and industrial	32	336
Municipal
Consumer	53	35
Unallocated allowance
Totals	1,107	1,164
Total portfolio, Loans
Residential 1-4 family	198,552	187,676
Residential 5+ multifamily	3,889	3,187
Construction of residential 1-4 family	2,379	5,305
Home equity credit	34,162	34,621
Residential real estate	238,982	230,789
Commercial	87,382	81,958
Construction of commercial	5,823	7,069
Commercial real estate	93,205	89,027
Farm land	4,320	4,925
Vacant land	9,926	12,828
Real estate secured	346,433	337,569
Commercial and industrial	38,094	29,358
Municipal	3,378	2,415
Consumer	4,181	4,496
Unallocated allowance
Totals	392,086	373,838
Total portfolio, Allowance
Residential 1-4 family	1,395	1,059
Residential 5+ multifamily	72	21
Construction of residential 1-4 family	10	17
Home equity credit	457	382
Residential real estate	1,934	1,479
Commercial	995	1,042
Construction of commercial	64	97
Commercial real estate	1,059	1,139
Farm land	66	185
Vacant land	234	224
Real estate secured	3,293	3,027
Commercial and industrial	499	704
Municipal	36	24
Consumer	92	79
Unallocated allowance	440	242
Totals	$ 4,360	$ 4,076