Federal Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Federal Income Taxes [Abstract]
Deferred tax assets: Allowance for credit losses	$ 2,325	$ 2,096
Deferred tax assets: Unrealized losses on securities		4
Deferred tax assests: Unrealized losses on reclassified securities	18	31
Deferred tax assets: Unrealized loss on pension obligation	759	725
Deferred tax assets: Capital loss dissallowance	1	1
Deferred tax assets: Unvested stock awards	45	19
Deferred tax assets: Deferred compensation (SERP)	403	380
Deferred tax assets: Nonqualified stock options	38	15
Deferred tax assets: Non-accrued interest	422	347
Deferred tax assets: Joint venture difference	31	64
Deferred tax assets: Deferred compensation (BOLI)	250	248
Deferred tax assets: Provision for unfunded loans	42	34
Deferred tax assets: OREO write-downs	75	69
Deferred tax assets: Accrued expenses	87	48
Total gross deferred tax assets	4,496	4,081
Deferred tax liabilities: Unrealized gains on securities available for sale	(426)
Deferred tax liabilities: Depreciation	(80)	(91)
Deferred tax liabilities: Pension expense	(100)	(134)
Deferred tax liabilities: Bank shares tax credit	(145)	(102)
Deferred tax liabilities: Prepaid expenses	(155)	(139)
Deferred tax liabilities: Prepaid expenses	(28)
Total gross deferred tax liabilities	(934)	(466)
Valuation allowance	(1)	(1)
Net deferred tax asset	$ 3,561	$ 3,614