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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 |
--- | --- | --- | ---
Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($) | Jun. 30, 2016 USD ($) loans | Jun. 30, 2015 USD ($) | Dec. 31, 2015 USD ($)
Financing Receivable, Recorded Investment |  |  |  |  |
Guaranteed Portion of SBA Loans Sold to Third Parties Total | $ 18,600 | $ 7,200 | $ 31,000 | $ 10,100 |
Total amount of outstanding SBA loans sold | 97,300 |  | 97,300 |  | $ 73,400
Total amount of SBA loan participations remaining on the corporations balance sheet | 30,600 |  | 30,600 |  | 24,600
SBA loans in the participation sold portfolio, considered impaired | 2,400 |  | 2,400 |  | 1,800
Loans and leases transferred to third parties total principal amount | 9,700 | 24,800 | 15,400 | 36,500 |
Gain (Loss) Recognized on Participation Interest in Originated Loans |  |  | 0 |  |
Total amount of outstanding loans transferred to third parties as loan participations | 103,300 |  | 103,300 |  | 95,800
Total amount of loan participations remaining on the Corporations balance sheet | 106,800 |  | 106,800 |  | 112,200
Loans in the participation sold portfolio, considered impaired | 0 |  | 0 |  |
Loan participations purchased on the Corporation's balance sheet | 459 |  | 459 |  | 467
Residential Real Estate Loans Sold, Principal Amount | 8,000 | $ 10,300 | 15,200 | $ 19,500 |
Total gross loans and leases receivable | 1,452,890 |  | 1,452,890 |  | 1,432,027
Non-accrual troubled debt restructurings | 13,200 |  | 13,200 |  | 16,200
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 | 3,400 |  | $ 3,400 |  | 3,900
Performing troubled debt restructurings | 788 |  | 788 |  | 1,735
Substandard |  |  |  |  |
Financing Receivable, Recorded Investment |  |  |  |  |
Total gross loans and leases receivable | 25,700 |  | 25,700 |  | 26,800
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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