Loans And Allowance For Loan Losses (Schedule Of Allowance For Loan Loss By Portfolio Segment) (Details) (USD $) In Thousands	Sep. 30, 2011	Jun. 30, 2011	Dec. 31, 2010	Sep. 30, 2010
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans individually evaluated for impairment	$ 12,048		$ 12,540
Loans collectively evaluated for impairment	22,253		18,566
Total allowance for loan losses	34,301	33,406	31,106	30,013
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans individually evaluated for impairment	3,983		3,718
Loans collectively evaluated for impairment	4,975		4,027
Total allowance for loan losses	8,958	8,567	7,745
Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans individually evaluated for impairment	490		1,548
Loans collectively evaluated for impairment	727		751
Total allowance for loan losses	1,217	1,766	2,299
Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans individually evaluated for impairment	7,324		6,829
Loans collectively evaluated for impairment	15,151		12,272
Total allowance for loan losses	22,475	21,394	19,101
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans individually evaluated for impairment	251		445
Loans collectively evaluated for impairment	1,400		1,516
Total allowance for loan losses	$ 1,651	$ 1,679	$ 1,961

The allowance for loan and lease losses represents the reserve to cover probable credit losses related to specifically identified loans and leases, as well as probable credit losses inherent in the remainder of the loan portfolio as of the balance sheet date. For banks, include currently required allocated transfer risk reserves. Include carryover of or adjustments to the allowance for loan losses in connection with business combinations determined to be appropriate.

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

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Chapter V

-Section 563c.102

-Paragraph 8

-Subparagraph a(ii)

-Subsection I

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 114

-Paragraph 20

-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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(d))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 9

-Section 03

-Paragraph 7

-Subparagraph d

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 8, 9

-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 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

+ Details