Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Financing Receivable Allowance For Credit Losses [Line Items]
Provision of loan losses	$ 184	$ 730	$ (4)	$ 1,522
Increase percentage non accrual loans to total loans (in hundredths)	2.88%	2.74%	2.88%	2.74%
Reserve ratio decrease percentage of portfolio loans (in hundredths)	1.93%		1.93%		2.02%
Allowance for loan losses:
Beginning Balance			14,311	14,623	14,623
Chargeoffs			(849)		(4,271)
Recoveries			158		521
Provision (Recovery)			(4)		3,438
Ending Balance	13,616		13,616		14,311
Ending allowance balance attributable to loans:
Individually evaluated for impairment	4,840		4,840		4,303
Collectively evaluated for impairment	8,776		8,776		10,008
Total ending allowance balances	13,616		13,616		14,311
Ending loan recorded investment balances:
Individually evaluated for impairment	25,942		25,942		26,795
Collectively evaluated for impairment	681,057		681,057		682,682
Total Loans	706,999		706,999		709,477
Real Estate Construction [Member]
Allowance for loan losses:
Beginning Balance			1,258	897	897
Chargeoffs			(123)		(2,152)
Recoveries			37		2
Provision (Recovery)			112		2,511
Ending Balance	1,284		1,284		1,258
Ending allowance balance attributable to loans:
Individually evaluated for impairment	493		493		166
Collectively evaluated for impairment	791		791		1,092
Total ending allowance balances	1,284		1,284		1,258
Ending loan recorded investment balances:
Individually evaluated for impairment	3,048		3,048		2,969
Collectively evaluated for impairment	44,992		44,992		47,249
Total Loans	48,040		48,040		50,218
Real Estate Secured by Farmland [Member]
Allowance for loan losses:
Beginning Balance			135	110	110
Chargeoffs			0		0
Recoveries			0		0
Provision (Recovery)			(18)		25
Ending Balance	117		117		135
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	117		117		135
Total ending allowance balances	117		117		135
Ending loan recorded investment balances:
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	11,575		11,575		11,876
Total Loans	11,575		11,575		11,876
Real Estate Secured by 1 - 4 Family Residential [Member]
Allowance for loan losses:
Beginning Balance			6,276	7,465	7,465
Chargeoffs			(569)		(893)
Recoveries			78		388
Provision (Recovery)			531		(684)
Ending Balance	6,316		6,316		6,276
Ending allowance balance attributable to loans:
Individually evaluated for impairment	3,128		3,128		2,724
Collectively evaluated for impairment	3,188		3,188		3,552
Total ending allowance balances	6,316		6,316		6,276
Ending loan recorded investment balances:
Individually evaluated for impairment	11,077		11,077		10,792
Collectively evaluated for impairment	247,001		247,001		249,828
Total Loans	258,078		258,078		260,620
Other Real Estate Loans [Member]
Allowance for loan losses:
Beginning Balance			4,348	4,385	4,385
Chargeoffs			(97)		(760)
Recoveries			20		86
Provision (Recovery)			(371)		637
Ending Balance	3,900		3,900		4,348
Ending allowance balance attributable to loans:
Individually evaluated for impairment	913		913		1,045
Collectively evaluated for impairment	2,987		2,987		3,303
Total ending allowance balances	3,900		3,900		4,348
Ending loan recorded investment balances:
Individually evaluated for impairment	9,455		9,455		10,640
Collectively evaluated for impairment	249,010		249,010		244,290
Total Loans	258,465		258,465		254,930
Commercial [Member]
Allowance for loan losses:
Beginning Balance			2,098	1,621	1,621
Chargeoffs			(38)		(394)
Recoveries			8		12
Provision (Recovery)			(266)		859
Ending Balance	1,802		1,802		2,098
Ending allowance balance attributable to loans:
Individually evaluated for impairment	271		271		338
Collectively evaluated for impairment	1,531		1,531		1,760
Total ending allowance balances	1,802		1,802		2,098
Ending loan recorded investment balances:
Individually evaluated for impairment	2,327		2,327		2,364
Collectively evaluated for impairment	114,908		114,908		116,209
Total Loans	117,235		117,235		118,573
Consumer [Member]
Allowance for loan losses:
Beginning Balance			196	145	145
Chargeoffs			(22)		(72)
Recoveries			15		33
Provision (Recovery)			8		90
Ending Balance	197		197		196
Ending allowance balance attributable to loans:
Individually evaluated for impairment	35		35		30
Collectively evaluated for impairment	162		162		166
Total ending allowance balances	197		197		196
Ending loan recorded investment balances:
Individually evaluated for impairment	35		35		30
Collectively evaluated for impairment	13,571		13,571		13,230
Total Loans	$ 13,606		$ 13,606		$ 13,260

Reflects the change for the period expressed as a percentage of the additions and reductions to the loan loss reserve.

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

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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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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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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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 before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Reflects the percentage derived from dividing impaired loans on which interest has ceased to be accrued by total loans.

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The sum of the periodic provision charged to earnings, based on an assessment of uncollectibility from the counterparty on account of loan, lease or other credit losses, to reduce these accounts to the amount that approximates their net realizable value.

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Provision charged for the period based on estimated losses to be realized from loan transactions.

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