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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Narrative Disclosures) (Details) (USD $) | 12 Months Ended | 29 Months Ended |
--- | --- | --- | ---
Dec. 31, 2013 loans | Dec. 31, 2012 | May 31, 2013 | Jun. 30, 2013 loans
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Loans and leases transferred to third parties total principal amount | $ 46,200,000 | $ 58,300,000 |  |
Total loans and leases transferred to third parties that qualify for sale accounting | 46,200,000 | 58,300,000 |  |
Loan participations purchased on the Corporation's balance sheet | 498,000 | 765,000 |  |
Total amount of outstanding loans transferred to third parties as loan participations | 52,100,000 | 50,100,000 |  |
Total amount of loan participations remaining on the Corporation's balance sheet | 77,200,000 | 71,900,000 |  |
Loans in the participation sold portfolio, considered impaired | 0 | 3,200,000 |  |
Charge-offs to specific credits within the retained portion of the participation sold portfolio |  |  | 2,700,000 |
Deteriorated loans acquired in transfer, acquired in period, number |  |  |  | 1
Certain loans acquired in transfer, acquired during period, contractually required payments receivable at acquisition |  |  |  | 3,200,000
Certain loans acquired in transfer, acquired during period, at acquisition, at fair value |  |  |  | 1,500,000
Certain loans acquired in transfer, carrying amount, net | 1,400,000 |  |  |
Certain loans acquired in transfer, provision for loan losses | 0 |  |  |
Loans to executive officers, directors and their related interests | 3,000,000 | 11,400,000 |  |
New loans granted to executive officers, directors and their related interests | 1,600,000 | 1,400,000 |  |
Repayments on loans to executive officers, directors and their related interests | 10,000,000 | 1,200,000 |  |
Loans and leases receivable, related parties, impaired | 0 |  |  |
Total gross loans and leases receivable | 981,972,000 | 912,708,000 |  |
Non-accrual troubled debt restructurings | 8,100,000 | 8,800,000 |  |
Unfunded commitments, troubled debt restructurings | 0 |  |  |
Troubled debt restructurings, subsequent default, number of loans | 0 |  |  |
Loans and leases receivable, difference between recorded investment and unpaid principal balance | 4,000,000 | 7,400,000 |  |
Performing troubled debt restructurings | 371,000 | 1,105,000 |  |
Impairments of residual value of leased property | 0 | 0 |  |
Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total gross loans and leases receivable | 22,800,000 | 22,000,000 |  |
Special Mention |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total gross loans and leases receivable | 0 | 0 |  |
Doubtful |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total gross loans and leases receivable | 0 | 0 |  |
Loss |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total gross loans and leases receivable | $ 0 | $ 0 |  |

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- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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