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Loans and Allowance for Loan Losses (Details 1) (USD $) In Thousands, unless otherwise specified			3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Loans [Member]	Mar. 31, 2012 Loans [Member]	Mar. 31, 2013 Loans [Member] Residential Real Estate [Member]	Mar. 31, 2012 Loans [Member] Residential Real Estate [Member]	Mar. 31, 2013 Loans [Member] Construction Loans [Member]	Mar. 31, 2012 Loans [Member] Construction Loans [Member]	Mar. 31, 2013 Loans [Member] Commercial Real Estate [Member]	Mar. 31, 2012 Loans [Member] Commercial Real Estate [Member]	Mar. 31, 2013 Loans [Member] Commercial Loan [Member]	Mar. 31, 2012 Loans [Member] Commercial Loan [Member]	Mar. 31, 2013 Loans [Member] Agriculture Loans [Member]	Mar. 31, 2012 Loans [Member] Agriculture Loans [Member]	Mar. 31, 2013 Loans [Member] Municipal Bonds [Member]	Mar. 31, 2012 Loans [Member] Municipal Bonds [Member]	Mar. 31, 2013 Loans [Member] Consumer Loan [Member]	Mar. 31, 2012 Loans [Member] Consumer Loan [Member]
Allowance for loan losses:
Balance	$ 4,634	$ 4,581	$ 4,581	$ 4,707	$ 714	$ 560	$ 1,214	$ 928	$ 1,313	$ 1,791	$ 707	$ 745	$ 367	$ 433	$ 107	$ 130	$ 159	$ 120
Charge-offs			(269)	(44)	(23)	0	0	0	0	0	(199)	0	0	0	0	0	(47)	(44)
Recoveries			22	51	8	2	2	1	0	0	1	4	0	38	0	0	11	6
Net charge-offs			(247)	7	(15)	2	2	1	0	0	(198)	4	0	38	0	0	(36)	(38)
Provision for loan losses			300	300	(121)	129	(82)	133	295	106	106	(21)	140	(63)	(6)	5	(32)	11
Balance	4,634	4,581	4,634	5,014	578	691	1,134	1,062	1,608	1,897	615	728	507	408	101	135	91	93
Allowance for loan losses:
Individually evaluated for loss			474	193	28	66	332	10	0	0	49	34	0	0	65	65	0	18
Collectively evaluated for loss			4,160	4,821	550	625	802	1,052	1,608	1,897	566	694	507	408	36	70	91	75
Total	4,634	4,581	4,634	5,014	578	691	1,134	1,062	1,608	1,897	615	728	507	408	101	135	91	93
Loan balances:
Individually evaluated for loss			13,233	3,012	757	1,277	8,603	25	2,833	227	236	648	5	12	772	784	27	39
Collectively evaluated for loss			305,455	300,716	90,623	75,173	15,591	20,519	90,259	92,261	58,804	55,451	31,771	35,030	5,753	9,281	12,654	13,001
Total	$ 314,269	$ 315,914	$ 318,688	$ 303,728	$ 91,380	$ 76,450	$ 24,194	$ 20,544	$ 93,092	$ 92,488	$ 59,040	$ 56,099	$ 31,776	$ 35,042	$ 6,525	$ 10,065	$ 12,681	$ 13,040

X

- Definition

Net amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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