Loans and Allowance for Loan Losses (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	$ 6,811	$ 6,529	$ 6,529
Charge Offs	(136)	(474)	(1,328)
Recoveries	18	103	260
Provision	299	451	1,350
Ending Balance	6,992	6,609	6,811
Ending balance individually evaluated for impairment	1,019		1,121
Ending balance collectively evaluated for impairment	5,973		5,690
Loans, Ending balance individually evaluated for impairment	4,737		5,322
Loans, Ending balance collectively evaluated for impairment	450,969		458,343
Commercial Industrial [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	1,561	1,914	1,914
Charge Offs		(205)	(390)
Recoveries	3	2	41
Provision	(84)	144	(4)
Ending Balance	1,480	1,855	1,561
Ending balance individually evaluated for impairment	397		485
Ending balance collectively evaluated for impairment	1,083		1,076
Loans, Ending balance individually evaluated for impairment	1,121		1,232
Loans, Ending balance collectively evaluated for impairment	79,573		80,535
Commercial RE & Construction [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	3,034	2,880	2,880
Charge Offs	(5)	(42)	(287)
Recoveries	13	23	50
Provision	224	52	391
Ending Balance	3,266	2,913	3,034
Ending balance individually evaluated for impairment	52		55
Ending balance collectively evaluated for impairment	3,214		2,979
Loans, Ending balance individually evaluated for impairment	395		725
Loans, Ending balance collectively evaluated for impairment	199,220		200,667
Agricultural & Farmland [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	186	51	51
Charge Offs			(10)
Recoveries	1	1	7
Provision	(8)		138
Ending Balance	179	52	186
Ending balance individually evaluated for impairment
Ending balance collectively evaluated for impairment	179		186
Loans, Ending balance individually evaluated for impairment
Loans, Ending balance collectively evaluated for impairment	37,950		42,276
Residential Real Estate [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	1,088	956	956
Charge Offs		(51)	(129)
Recoveries		71	86
Provision	22	24	175
Ending Balance	1,110	1,000	1,088
Ending balance individually evaluated for impairment	367		386
Ending balance collectively evaluated for impairment	743		702
Loans, Ending balance individually evaluated for impairment	2,585		2,683
Loans, Ending balance collectively evaluated for impairment	87,084		85,176
Home Equity & Consumer [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	839	599	599
Charge Offs	(131)	(160)	(484)
Recoveries	1	2	69
Provision	136	212	655
Ending Balance	845	653	839
Ending balance individually evaluated for impairment	203		195
Ending balance collectively evaluated for impairment	642		644
Loans, Ending balance individually evaluated for impairment	636		682
Loans, Ending balance collectively evaluated for impairment	47,004		49,541
Other [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance	103	139	139
Charge Offs		(16)	(28)
Recoveries		3	6
Provision	9	9	(14)
Ending Balance	112	135	103
Ending balance collectively evaluated for impairment	112		103
Loans, Ending balance collectively evaluated for impairment	138		148
Unallocated [Member]
Summary of balance of the allowance for loan losses and the recorded investment in loans
Beginning balance		(10)	(10)
Charge Offs
Recoveries		1	1
Provision		10	8
Ending Balance		1
Ending balance collectively evaluated for impairment			(1)
Loans, Ending balance collectively evaluated for impairment

A valuation allowance for financing receivables that are expected to be uncollectible.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount of direct write-downs of financing receivables charged against the allowance.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 11

-Article 9

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-Number AAG-DEP

-Paragraph 168, 169, 170

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