LOANS - Composition of loans receivable by delinquency status (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current
Residential 1-4 family	$ 199,921	$ 190,488
Residential 5+ multifamily	4,610	3,889
Residential 1-4 family construction	1,395	2,379
Home equity credit	33,241	32,540
Residential real estate	239,167	229,296
Commercial	91,560	83,477
Construction of commercial	9,592	5,659
Commercial real estate	101,152	89,136
Farm land	3,110	3,898
Vacant land	4,772	5,932
Real estate secured	348,201	328,262
Commercial and industrial	33,592	37,618
Municipal	3,995	3,378
Consumer	3,886	4,034
Loans receivable, gross	389,674	373,292
Past due, 1-29 days
Residential 1-4 family	5,445	2,545
Residential 5+ multifamily
Residential 1-4 family construction
Home equity credit	153	890
Residential real estate	5,598	3,435
Commercial	2,817	864
Construction of commercial
Commercial real estate	2,817	864
Farm land	785	422
Vacant land
Real estate secured	9,200	4,721
Commercial and industrial	267	351
Municipal
Consumer	66	108
Loans receivable, gross	9,533	5,180
Past due, 30-59 days
Residential 1-4 family	549	3,578
Residential 5+ multifamily
Residential 1-4 family construction
Home equity credit	495	113
Residential real estate	1,044	3,691
Commercial	76	1,104
Construction of commercial	21	164
Commercial real estate	97	1,268
Farm land	14
Vacant land
Real estate secured	1,155	4,959
Commercial and industrial	58	26
Municipal
Consumer	15	25
Loans receivable, gross	1,228	5,010
Past due, 60-89 days
Residential 1-4 family	2,771	639
Residential 5+ multifamily	104
Residential 1-4 family construction
Home equity credit	36	396
Residential real estate	2,911	1,035
Commercial	1,024	566
Construction of commercial	142
Commercial real estate	1,166	566
Farm land	373
Vacant land	47	48
Real estate secured	4,497	1,649
Commercial and industrial	26	99
Municipal
Consumer	8	14
Loans receivable, gross	4,531	1,762
Past due, 90-179 days
Residential 1-4 family	356	1,185
Residential 5+ multifamily
Residential 1-4 family construction
Home equity credit
Residential real estate	356	1,185
Commercial	424	58
Construction of commercial
Commercial real estate	424	58
Farm land
Vacant land		740
Real estate secured	780	1,983
Commercial and industrial
Municipal
Consumer
Loans receivable, gross	780	1,983
Past due, 180 days and over
Residential 1-4 family	117	117
Residential 5+ multifamily
Residential 1-4 family construction
Home equity credit		223
Residential real estate	117	340
Commercial	934	1,313
Construction of commercial
Commercial real estate	934	1,313
Farm land
Vacant land	3,079	3,206
Real estate secured	4,130	4,859
Commercial and industrial
Municipal
Consumer
Loans receivable, gross	4,130	4,859
Past due, 30 days and over
Residential 1-4 family	3,793	5,519
Residential 5+ multifamily	104
Residential 1-4 family construction
Home equity credit	531	732
Residential real estate	4,428	6,251
Commercial	2,458	3,041
Construction of commercial	163	164
Commercial real estate	2,621	3,205
Farm land	387
Vacant land	3,126	3,994
Real estate secured	10,561	13,450
Commercial and industrial	84	125
Municipal
Consumer	23	39
Loans receivable, gross	10,668	13,614
Past due, Accruing 90 days and over
Residential 1-4 family	165
Residential 5+ multifamily
Residential 1-4 family construction
Home equity credit
Residential real estate	165
Commercial	198
Construction of commercial
Commercial real estate	198
Farm land
Vacant land
Real estate secured	363
Commercial and industrial
Municipal
Consumer
Loans receivable, gross	165
Non-accrual
Residential 1-4 family	2,880	3,024
Residential 5+ multifamily
Residential 1-4 family construction
Home equity credit	113	442
Residential real estate	2,993	3,466
Commercial	2,043	2,214
Construction of commercial	21	21
Commercial real estate	2,064	2,235
Farm land
Vacant land	3,126	3,994
Real estate secured	8,182	9,695
Commercial and industrial	42	164
Municipal
Consumer
Loans receivable, gross	$ 8,224	$ 9,859