Loans and Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Mortgage loans on real estate
Total mortgage loans on real estate	$ 1,120,383	$ 1,093,286
Commercial loans	29,293	30,545
Agricultural loans	2,327	2,238
Consumer installment loans
Total consumer installment loans	40,785	41,713
Other loans	2,499	2,738
Gross Loan and Leases Receivable	1,195,287	1,170,520
Net deferred loan fees	(3,006)	(2,912)
Total loans	1,192,281	1,167,608
Less: Allowance for loan losses	(25,845)	(25,497)
Net Loans	1,166,436	1,142,111
Residential 1-4 family
Mortgage loans on real estate
Total mortgage loans on real estate	339,930	341,977
Multifamily
Mortgage loans on real estate
Total mortgage loans on real estate	16,107	16,140
Commercial
Mortgage loans on real estate
Total mortgage loans on real estate	492,312	469,757
Construction and Land Development
Mortgage loans on real estate
Total mortgage loans on real estate	199,620	190,356
Farmland
Mortgage loans on real estate
Total mortgage loans on real estate	24,725	26,319
Second mortgages
Mortgage loans on real estate
Total mortgage loans on real estate	12,369	12,477
Equity Lines of Credit
Mortgage loans on real estate
Total mortgage loans on real estate	35,320	36,260
Personal
Consumer installment loans
Total consumer installment loans	37,830	38,463
Credit Cards
Consumer installment loans
Total consumer installment loans	$ 2,955	$ 3,250

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 of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Reflects the aggregate gross carrying amount of all commercial loans and leases held in portfolio, prior to deducting deferred income and the allowance for losses on commercial loans and leases.

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Reflects the aggregate gross carrying amount of all consumer loans and leases held in portfolio, prior to deducting deferred income and the allowance for losses on consumer loans and leases.

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Reflects the aggregate gross carrying amount of all loans and leases held in portfolio, not otherwise categorized (such as commercial, consumer, or foreign), prior to deducting deferred income and the allowance for losses on loans and leases, not otherwise categorized (such as commercial, consumer, or foreign).

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Amount before allowance and after 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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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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Total carrying amount of mortgage loans as of the balance sheet date.

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Agriculture loans.

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Gross loan and lease receivable, carrying amount.

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