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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Narrative Disclosures) (Details) loans in Thousands, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) loans	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Financing Receivable, Recorded Investment
Loans and leases transferred to third parties total principal amount	$ 32,000	$ 6,600	$ 46,600	$ 11,700
Gain (Loss) Recognized on Participation Interest in Originated Loans			0
Loan participations purchased on the Corporation's balance sheet	475		475		$ 482
Total amount of outstanding loans transferred to third parties as loan participations	140,000		140,000		116,600
Total amount of loan participations remaining on the Corporations balance sheet	98,400		98,400		96,400
Loans in the participation sold portfolio, considered impaired	1,000		1,000		1,200
Residential Real Estate Loans Sold, Principal Amount	10,300		19,500		0
Total gross loans and leases receivable	1,351,711	$ 1,008,615	1,351,711	$ 1,008,615	1,281,792
Non-accrual troubled debt restructurings	6,900		6,900		7,400
Unfunded commitments, troubled debt restructurings	0		$ 0
Troubled debt restructurings, subsequent default, number of loans | loans			0
Loans and leases receivable, difference between recorded investment and unpaid principal balance	3,800		$ 3,800		4,400
Performing troubled debt restructurings	1,944		1,944		2,003
Substandard
Financing Receivable, Recorded Investment
Total gross loans and leases receivable	10,600		10,600		27,100
Special Mention
Financing Receivable, Recorded Investment
Total gross loans and leases receivable	0		0		0
Doubtful
Financing Receivable, Recorded Investment
Total gross loans and leases receivable	0		0		0
Loss
Financing Receivable, Recorded Investment
Total gross loans and leases receivable	$ 0		$ 0		$ 0

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Total amount of outstanding loans transferred to third parties as loan participations

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Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 50



-Paragraph 34



-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953682-111524

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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.

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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

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