LOANS AND RELATED ALLOWANCE FOR LOAN LOSSES PAST DUE (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	$ 2,566,000	$ 1,324,000
60 to 89 Days Past Due	354,000	510,000
90 Days Or Greater	3,185,000	3,875,000
Total Past Due	6,105,000	5,709,000
Current	496,358,000	481,800,000
Total Loans	502,463,000	487,509,000
90 Days and Accruing	506,000	275,000
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	8,067,000	9,165,000
Foregone interest income	531,000	625,000	522,000
Minimum [Member]
Recorded investment of past due [Abstract]
Period of past due after which loans considered as non accrual	90 days
Loans Considered Non-Accrual [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	73,000	0
60 to 89 Days Past Due	69,000	0
90 Days Or Greater	2,679,000	3,600,000
Total Past Due	2,821,000	3,600,000
Current	5,246,000	5,565,000
Total Loans	8,067,000	9,165,000
Loans Still Accruing [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	2,493,000	1,324,000
60 to 89 Days Past Due	285,000	510,000
90 Days Or Greater	506,000	275,000
Total Past Due	3,284,000	2,109,000
Current	491,112,000	476,235,000
Total Loans	494,396,000	478,344,000
Real Estate Loans [Member] | Residential [Member]
Recorded investment of past due [Abstract]
Total Loans	178,080,000	184,034,000
Real Estate Loans [Member] | Commercial and Agricultural [Member]
Recorded investment of past due [Abstract]
Total Loans	194,725,000	185,050,000
Real Estate Loans [Member] | Mortgages [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	636,000	428,000
60 to 89 Days Past Due	294,000	91,000
90 Days Or Greater	493,000	398,000
Total Past Due	1,423,000	917,000
Current	105,125,000	101,794,000
Total Loans	106,548,000	102,711,000
90 Days and Accruing	244,000	60,000
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	482,000	413,000
Real Estate Loans [Member] | Home Equity [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	267,000	339,000
60 to 89 Days Past Due	17,000	0
90 Days Or Greater	222,000	180,000
Total Past Due	506,000	519,000
Current	71,026,000	80,804,000
Total Loans	71,532,000	81,323,000
90 Days and Accruing	88,000	39,000
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	181,000	141,000
Real Estate Loans [Member] | Commercial [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	602,000	319,000
60 to 89 Days Past Due	0	412,000
90 Days Or Greater	2,149,000	2,794,000
Total Past Due	2,751,000	3,525,000
Current	173,959,000	162,301,000
Total Loans	176,710,000	165,826,000
90 Days and Accruing	152,000	176,000
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	7,042,000	8,094,000
Real Estate Loans [Member] | Agricultural [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	54,000	143,000
60 to 89 Days Past Due	0	0
90 Days Or Greater	0	0
Total Past Due	54,000	143,000
Current	17,961,000	19,081,000
Total Loans	18,015,000	19,224,000
90 Days and Accruing	0	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	0	0
Real Estate Loans [Member] | Construction [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	0	0
60 to 89 Days Past Due	0	0
90 Days Or Greater	0	0
Total Past Due	0	0
Current	12,011,000	8,481,000
Total Loans	12,011,000	8,481,000
90 Days and Accruing	0	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	0	0
Commercial and Other Loans [Member]
Recorded investment of past due [Abstract]
Total Loans	47,880,000	44,299,000
Consumer [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	45,000	86,000
60 to 89 Days Past Due	43,000	7,000
90 Days Or Greater	4,000	0
Total Past Due	92,000	93,000
Current	10,467,000	10,653,000
Total Loans	10,559,000	10,746,000
90 Days and Accruing	4,000	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	0	0
Other Commercial Loans [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	962,000	9,000
60 to 89 Days Past Due	0	0
90 Days Or Greater	317,000	503,000
Total Past Due	1,279,000	512,000
Current	40,341,000	37,235,000
Total Loans	41,620,000	37,747,000
90 Days and Accruing	18,000	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	362,000	517,000
Other Agricultural Loans [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	0	0
60 to 89 Days Past Due	0	0
90 Days Or Greater	0	0
Total Past Due	0	0
Current	6,260,000	6,552,000
Total Loans	6,260,000	6,552,000
90 Days and Accruing	0	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	0	0
State and Political Subdivision Loans [Member]
Recorded investment of past due [Abstract]
30 to 59 Days Past Due	0	0
60 to 89 Days Past Due	0	0
90 Days Or Greater	0	0
Total Past Due	0	0
Current	59,208,000	54,899,000
Total Loans	59,208,000	54,899,000
90 Days and Accruing	0	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	$ 0	$ 0