Condensed Financial Information - Parent Company Only (Schedule of Condensed Cash Flows Statement) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities
Net income	$ 7,140us-gaap_NetIncomeLoss	$ 7,158us-gaap_NetIncomeLoss	$ 6,550us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities
(Gain) on the sale of securities	(990)us-gaap_GainLossOnSaleOfSecuritiesNet	(465)us-gaap_GainLossOnSaleOfSecuritiesNet	(45)us-gaap_GainLossOnSaleOfSecuritiesNet
(Discount accretion) premium amortization on securities	124	146	191
Changes in assets and liabilities:
(Increase) decrease in other assets	(451)	(1,392)	602
Increase (decrease) in other liabilities	(179)	183	937
Net cash provided by operating activities	7,286	8,219	11,433
Cash Flows from Investing Activities
Purchases of securities available for sale	(8,693)	(26,863)	(12,271)
Proceeds from the sale of securities available for sale	8,546	3,987	3,357
Proceeds from maturities of securities available for sale	10,837	18,389	20,997
Net cash (used in) investing activities	(19,203)	(31,491)	(1,622)
Cash Flows from Financing Activities
Cash dividends paid	(1,944)us-gaap_PaymentsOfDividendsCommonStock	(1,909)us-gaap_PaymentsOfDividendsCommonStock	(1,805)us-gaap_PaymentsOfDividendsCommonStock
Issuance of common stock, employee benefit plan	202	179	107
Stock options exercised	0	69	0
Net cash provided by (used in) financing activities	32,238	(11,175)	16,938
Increase in cash	20,321	(34,447)	26,749
Cash and Cash Equivalents
Beginning	14,243	48,690	21,941
Ending	34,564	14,243	48,690
Parent Company [Member]
Cash Flows from Operating Activities
Net income	7,140	7,158	6,550
Adjustments to reconcile net income to net cash provided by operating activities
(Gain) on the sale of securities	(283)	0	0
Stock-based compensation expense	290	305	242
(Discount accretion) premium amortization on securities	0	(1)	(1)
Undistributed earnings of subsidiary bank	(5,630)	(7,423)	(5,890)
Changes in assets and liabilities:
(Increase) decrease in other assets	(10)	138	30
Increase (decrease) in other liabilities	1	1	(2)
Net cash provided by operating activities	1,508	178	929
Cash Flows from Investing Activities
Purchases of securities available for sale	(761)	(1,044)	0
Proceeds from the sale of securities available for sale	1,865
Proceeds from maturities of securities available for sale	405	1,458	1,945
Net cash (used in) investing activities	1,509	414	1,945
Cash Flows from Financing Activities
Cash dividends paid	(1,944)	(1,909)	(1,805)
Issuance of common stock, employee benefit plan	202	179	107
Stock options exercised	0	69	0
Net cash provided by (used in) financing activities	(1,742)	(1,661)	(1,698)
Increase in cash	1,275	(1,069)	1,176
Cash and Cash Equivalents
Beginning	923	1,992	816
Ending	$ 2,198	$ 923	$ 1,992

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Costs and payments related to employee benefits and equity-based compensation, such as pension expense and contributions, other postretirement benefits expense and payments, stock or unit options expense, and amortization of restricted stock or unit.

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