Premises and Equipment (Leases) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Premises and Equipment [Abstract]
Lease expense	$ 997	$ 918	$ 840
Capital lease interest rate	9.75%
Year through which capital lease on branch facility will extend	2026
Capital lease for a branch facility	855
Accumulated depreciation for a branch facility	289
Operating Leases
2013	1,192
2014	1,027
2015	830
2016	723
2017	642
Thereafter	1,565
Total	5,979
Capital Leases
2013	57
2014	59
2015	62
2016	65
2017	67
Thereafter	791
Total	1,101
Gain on sale of a branch facility	$ 479

Effective interest rate on capital lease payments

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Date which lease or group of leases is set to expire, in CCYY format.

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Property, plant, or equipment held under lease agreements classified as an asset.

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Amount of minimum lease payments for capital leases.

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The net gain (loss) arising from the lessor's transactions involving the sale, transfer, or termination of financing agreements classified as capital leases.

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The cumulative amount of depreciation (related to capitalized assets classified as property, plant and equipment not otherwise defined in the taxonomy) that has been recognized in the income statement.

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