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Securities (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Securities available for sale
Amortized Cost	$ 692,365	$ 618,911
Unrealized Gains	26,888	23,602
Unrealized Losses	(3,801)	(4,406)
Fair Value	715,452	638,107
U.S. Treasury [Member]
Securities available for sale
Amortized Cost	6,036	8,064
Unrealized Gains	33	66
Unrealized Losses	0	0
Fair Value	6,069	8,130
U.S. Government sponsored entities [Member]
Securities available for sale
Amortized Cost	107,398	102,258
Unrealized Gains	5,641	5,249
Unrealized Losses	(9)	(15)
Fair Value	113,030	107,492
States and political subdivisions [Member]
Securities available for sale
Amortized Cost	151,321	149,685
Unrealized Gains	10,316	8,844
Unrealized Losses	(54)	(92)
Fair Value	161,583	158,437
Residential mortgage and asset backed [Member]
Securities available for sale
Amortized Cost	363,792	292,297
Unrealized Gains	8,923	8,043
Unrealized Losses	(279)	(214)
Fair Value	372,436	300,126
Commercial mortgage and asset backed [Member]
Securities available for sale
Amortized Cost	2,071	2,077
Unrealized Gains	61	45
Unrealized Losses	0	0
Fair Value	2,132	2,122
Corporate notes and bonds [Member]
Securities available for sale
Amortized Cost	16,364	17,358
Unrealized Gains	62	50
Unrealized Losses	(3,010)	(3,548)
Fair Value	13,416	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	43,062	44,851
Unrealized Gains	1,830	1,282
Unrealized Losses	(9)	(77)
Fair Value	44,883	46,056
Other Securities [Member]
Securities available for sale
Amortized Cost	1,521	1,521
Unrealized Gains	22	23
Unrealized Losses	0	0
Fair Value	$ 1,543	$ 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

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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 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

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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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-Name Accounting Standards Codification

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

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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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