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Securities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Securities available for sale
Amortized Cost	$ 694,554	$ 618,911
Unrealized Gains	28,664	23,602
Unrealized Losses	(3,934)	(4,406)
Fair Value	719,284	638,107
U.S. Treasury [Member]
Securities available for sale
Amortized Cost	5,025	8,064
Unrealized Gains	25	66
Unrealized Losses	0	0
Fair Value	5,050	8,130
U.S. Gov't sponsored entities [Member]
Securities available for sale
Amortized Cost	113,591	102,258
Unrealized Gains	6,163	5,249
Unrealized Losses	(1)	(15)
Fair Value	119,753	107,492
State & political subdivisions [Member]
Securities available for sale
Amortized Cost	161,138	149,685
Unrealized Gains	11,135	8,844
Unrealized Losses	(35)	(92)
Fair Value	172,238	158,437
Residential mortgage & asset backed [Member]
Securities available for sale
Amortized Cost	349,141	292,297
Unrealized Gains	9,234	8,043
Unrealized Losses	(571)	(214)
Fair Value	357,804	300,126
Commercial mortgage and asset backed [Member]
Securities available for sale
Amortized Cost	1,875	2,077
Unrealized Gains	72	45
Unrealized Losses	0	0
Fair Value	1,947	2,122
Corporate notes & bonds [Member]
Securities available for sale
Amortized Cost	17,366	17,358
Unrealized Gains	40	50
Unrealized Losses	(2,887)	(3,548)
Fair Value	14,519	13,860
Pooled trust preferred [Member]
Securities available for sale
Amortized Cost	800	800
Unrealized Gains	0	0
Unrealized Losses	(440)	(460)
Fair Value	360	340
Pooled SBA [Member]
Securities available for sale
Amortized Cost	44,097	44,851
Unrealized Gains	1,964	1,282
Unrealized Losses	0	(77)
Fair Value	46,061	46,056
Other securities [Member]
Securities available for sale
Amortized Cost	1,521	1,521
Unrealized Gains	31	23
Unrealized Losses	0	0
Fair Value	$ 1,552	$ 1,544

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.2)

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-Name FASB Staff Position (FSP)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 19

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

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-Paragraph 12

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6505594

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This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 22

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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