Fair Value of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Securities available for sale [Abstract]
Securities available for sale	$ 347,618	$ 335,246
Federal agencies and GSEs [Member]
Securities available for sale [Abstract]
Securities available for sale	59,792	42,759
Mortgage-backed and CMOs [Member]
Securities available for sale [Abstract]
Securities available for sale	69,887	83,308
State and municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	205,952	202,731
Corporate [Member]
Securities available for sale [Abstract]
Securities available for sale	10,877	6,448
Equity Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	1,110
Recurring [Member]
Securities available for sale [Abstract]
Securities available for sale		335,246
Recurring [Member] \| Federal agencies and GSEs [Member]
Securities available for sale [Abstract]
Securities available for sale	59,792	42,759
Recurring [Member] \| Mortgage-backed and CMOs [Member]
Securities available for sale [Abstract]
Securities available for sale	69,887	83,308
Recurring [Member] \| State and municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	205,952	202,731
Recurring [Member] \| Corporate [Member]
Securities available for sale [Abstract]
Securities available for sale	10,877	6,448
Recurring [Member] \| Equity Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	1,110	0
Recurring [Member] \| Convertible Preferred Stock [Member]
Securities available for sale [Abstract]
Securities available for sale	347,618
Nonrecurring [Member]
Assets non-recurring [Abstract]
Loans held for sale	3,919	13,852
Impaired loans, net of valuation allowance	1,147	3
Other real estate owned	4,215	6,193
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Securities available for sale [Abstract]
Securities available for sale	0	2,110
Assets non-recurring [Abstract]
Loans held for sale	0	0
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] \| Recurring [Member]
Securities available for sale [Abstract]
Securities available for sale	0	2,110
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] \| Recurring [Member] \| Federal agencies and GSEs [Member]
Securities available for sale [Abstract]
Securities available for sale	0	0
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] \| Recurring [Member] \| Mortgage-backed and CMOs [Member]
Securities available for sale [Abstract]
Securities available for sale	0	0
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] \| Recurring [Member] \| State and municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	0	2,110
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] \| Recurring [Member] \| Corporate [Member]
Securities available for sale [Abstract]
Securities available for sale	0	0
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] \| Recurring [Member] \| Equity Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	0	0
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member] \| Nonrecurring [Member]
Assets non-recurring [Abstract]
Loans held for sale	0	0
Impaired loans, net of valuation allowance	0	0
Other real estate owned	0	0
Significant Other Observable Inputs, Level 2 [Member]
Securities available for sale [Abstract]
Securities available for sale	346,508	332,785
Assets non-recurring [Abstract]
Loans held for sale	3,919	13,852
Significant Other Observable Inputs, Level 2 [Member] \| Recurring [Member]
Securities available for sale [Abstract]
Securities available for sale	346,508	332,785
Significant Other Observable Inputs, Level 2 [Member] \| Recurring [Member] \| Federal agencies and GSEs [Member]
Securities available for sale [Abstract]
Securities available for sale	59,792	42,759
Significant Other Observable Inputs, Level 2 [Member] \| Recurring [Member] \| Mortgage-backed and CMOs [Member]
Securities available for sale [Abstract]
Securities available for sale	69,887	83,308
Significant Other Observable Inputs, Level 2 [Member] \| Recurring [Member] \| State and municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	205,952	200,621
Significant Other Observable Inputs, Level 2 [Member] \| Recurring [Member] \| Corporate [Member]
Securities available for sale [Abstract]
Securities available for sale	10,877	6,097
Significant Other Observable Inputs, Level 2 [Member] \| Recurring [Member] \| Equity Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	0	0
Significant Other Observable Inputs, Level 2 [Member] \| Nonrecurring [Member]
Assets non-recurring [Abstract]
Loans held for sale	3,919	13,852
Impaired loans, net of valuation allowance	0	0
Other real estate owned	0	0
Significant Unobservable Inputs, Level 3 [Member]
Securities available for sale [Abstract]
Securities available for sale	1,110	351
Assets non-recurring [Abstract]
Loans held for sale	0	0
Significant Unobservable Inputs, Level 3 [Member] \| Recurring [Member]
Securities available for sale [Abstract]
Securities available for sale	1,110	351
Significant Unobservable Inputs, Level 3 [Member] \| Recurring [Member] \| Federal agencies and GSEs [Member]
Securities available for sale [Abstract]
Securities available for sale	0	0
Significant Unobservable Inputs, Level 3 [Member] \| Recurring [Member] \| Mortgage-backed and CMOs [Member]
Securities available for sale [Abstract]
Securities available for sale	0	0
Significant Unobservable Inputs, Level 3 [Member] \| Recurring [Member] \| State and municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	0	0
Significant Unobservable Inputs, Level 3 [Member] \| Recurring [Member] \| Corporate [Member]
Securities available for sale [Abstract]
Securities available for sale	0	351
Significant Unobservable Inputs, Level 3 [Member] \| Recurring [Member] \| Equity Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	1,110	0
Significant Unobservable Inputs, Level 3 [Member] \| Nonrecurring [Member]
Assets non-recurring [Abstract]
Loans held for sale	0	0
Impaired loans, net of valuation allowance	1,147	3
Other real estate owned	$ 4,215	$ 6,193

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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