Federal Income Taxes (Net Deferred Tax Asset) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Federal Income Taxes [Abstract]
Deferred Tax Assets, Allowance for loan and lease losses	$ 1,873	$ 2,283
Deferred Tax Assets, Loan Fees	198	266
Deferred Tax Assets, Benefit plans	974	1,082
Deferred Tax Assets, Nonaccrual interest	1,204	882
Deferred Tax Assets, AMT Credit Carryforward	333
Deferred Tax Assets, Other	108	182
Deferred Tax Assets, Gross, Total	4,690	4,695
Deferred Tax Liabilities, Depreciation	(1,109)	(897)
Deferred Tax Liabilities, Bond accretion	(80)	(115)
Deferred Tax Liabilities, Goodwill and intangibles	(234)	(191)
Deferred Tax liabilities, Unrealized gain on securities	(1,253)	(1,053)
Deferred Tax Liabilities, Prepaid expenses	(222)
Deferred Tax Liabilities, Other	(3)
Deferred Tax Liabilities, Gross, Total	(2,901)	(2,256)
Deferred Tax Assets, Net, Total	$ 1,789	$ 2,439