Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Available for sale securities:
Available-for-sale, carried at fair value	$ 269,098	$ 232,919
Us Government Corporations and Agencies Securities [Member]
Available for sale securities:
Available-for-sale, carried at fair value	21,649	17,085
Us Government Corporations and Agencies Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Us Government Corporations and Agencies Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	21,649	17,085
Us Government Corporations and Agencies Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Us Treasury Securities [Member]
Available for sale securities:
Available-for-sale, carried at fair value	2,004	2,010
Us Treasury Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Us Treasury Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	2,004	2,010
Us Treasury Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Residential Mortgage Backed Securities [Member]
Available for sale securities:
Available-for-sale, carried at fair value	85,495	70,716
Residential Mortgage Backed Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Residential Mortgage Backed Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	85,495	70,716
Residential Mortgage Backed Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Remics [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	2,894
Remics [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Remics [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	2,894
Remics [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Collateralized Mortgage Backed Securities [Member]
Available for sale securities:
Available-for-sale, carried at fair value	65,030	59,009
Collateralized Mortgage Backed Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Collateralized Mortgage Backed Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	65,030	59,009
Collateralized Mortgage Backed Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Trust Preferred Stock [Member]
Available for sale securities:
Available-for-sale, carried at fair value	1,308	1,342
Trust Preferred Stock [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Trust Preferred Stock [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Trust Preferred Stock [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	1,308	1,342
Preferred Stock [Member]
Available for sale securities:
Available-for-sale, carried at fair value	69	108
Preferred Stock [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	69	108
Preferred Stock [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Preferred Stock [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Corporate Bond Securities [Member]
Available for sale securities:
Available-for-sale, carried at fair value	8,849	8,252
Corporate Bond Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Corporate Bond Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	8,849	8,252
Corporate Bond Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Us States and Political Subdivisions Debt Securities [Member]
Available for sale securities:
Available-for-sale, carried at fair value	84,694	71,503
Us States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Us States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	84,694	71,503
Us States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Mortgage Banking Derivative Asset [Member]
Available for sale securities:
Available-for-sale, carried at fair value	2,021	865
Mortgage Banking Derivative Asset [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Mortgage Banking Derivative Asset [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	2,021	865
Mortgage Banking Derivative Asset [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Mortgage Banking Derivative Liability [Member]
Available for sale securities:
Available-for-sale, carried at fair value	(996)	(258)
Mortgage Banking Derivative Liability [Member] \| Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	0	0
Mortgage Banking Derivative Liability [Member] \| Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	(996)	(258)
Mortgage Banking Derivative Liability [Member] \| Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available-for-sale, carried at fair value	$ 0	$ 0

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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