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Loans and Allowance for Loan Losses (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary of amounts included in nonaccrual loans segregated by class of loans
Nonaccrual loans, Total	$ 20,549	$ 21,187
Non-residential real estate [Member]
Summary of amounts included in nonaccrual loans segregated by class of loans
Nonaccrual loans, Total	9,878	8,576
Residential real estate [Member]
Summary of amounts included in nonaccrual loans segregated by class of loans
Nonaccrual loans, Total	3,750	4,798
Non-consumer non-real estate [Member]
Summary of amounts included in nonaccrual loans segregated by class of loans
Nonaccrual loans, Total	1,464	1,214
Consumer non-real estate [Member]
Summary of amounts included in nonaccrual loans segregated by class of loans
Nonaccrual loans, Total	137	161
Other loans [Member]
Summary of amounts included in nonaccrual loans segregated by class of loans
Nonaccrual loans, Total	2,519	3,247
Acquired loans [Member]
Summary of amounts included in nonaccrual loans segregated by class of loans
Nonaccrual loans, Total	$ 2,801	$ 3,191

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- Details

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524

+ Details

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