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Mortgage Banking and Servicing Rights (Details) (USD $)
In Thousands, unless otherwise specified

12 Months Ended

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Mortgage Banking and Servicing Rights [Abstract]

Net gain on sale of loans held for sale

$ 2,562

$ 1,749

$ 1,642

Net loan servicing income (expense)

Servicing fees

1,083

1,072

1,110

Late fees

83

77

74

Ancillary fees

382

278

269

Fair value adjustments

(559)

(1,405)

(769)

Net loan servicing income (expense)

989

22

684

Mortgage banking income

3,551

1,771

2,326

Loan service for benefit of others

419

425

425

Escrow Deposit

673

579

485

Servicing Asset at Fair Value, Amount [Roll Forward]

Fair value of MSRs, beginning of period

2,282

3,161

3,406

New servicing assets created

641

526

524

Change in fair value during the period due to:

Time decay

(116)

^[1]

(124)

^[1]

(161)

^[1]

Payoffs

(478)

^[2]

(439)

^[2]

(190)

^[2]

Changes in valuation inputs or assumptions

35

^[3]

(842)

^[3]

(418)

^[3]

Fair value of MSRs, end of period

$ 2,364

$ 2,282

$ 3,161

Discount rate of servicing assets and servicing liabilities (in hundredths)

10.50%

10.00%

10.00%

Weighted average default rates (in hundredths)

2.65%

2.61%

2.00%

Prepayment using andrew davidson model (in hundredths)

16.30%

19.20%

13.30%

[1]	Represents decrease in value due to regularly scheduled loan principal payments and partial loan paydowns.
[2]	Represents decrease in value due to loans that paid off during the period.
[3]	Represents change in value resulting from market-driven changes in interest rates.

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Outstanding balance of underlying mortgage loans serviced for others

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The net income (loss) from loan servicing activities that is included in earnings for the reporting period.

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All amounts that are due to the servicer of a financial asset, excluding contractually specified servicing fees and late fees.

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All amounts that, per contract, are due to the servicer in exchange for servicing the financial asset and would no longer be received by a servicer if the beneficial owners of the serviced assets (or their trustees or agents) were to exercise their actual or potential authority under the contract to shift the servicing to another servicer. Depending on the servicing contract, those fees may include some or all of the difference between the interest rate collected on the asset being serviced and the rate to be paid to the beneficial owners of the asset.

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The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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The noninterest income derived from mortgage banking activities (fees and commissions), excluding fees earned from servicing third-party assets.

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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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All amounts that are due to the servicer of a financial asset as a result of the debt holder not meeting the monthly payment terms.

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The adjustment to the carrying value of the rights retained or purchased to service mortgages. These adjustments are made when the estimate of the fair value is changed. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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The value of new servicing assets, subsequently measured at fair value, acquired or created during the current period through purchases or from transfers of financial assets.

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