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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Troubled Debt Restructurings by Modification Type) (Details) $ in Thousands	Jun. 30, 2016 USD ($) securities loans	Dec. 31, 2015 USD ($) securities loans
Troubled debt restructurings
Number of Loans | loans	38	42
Recorded Investment	$ 14,005	$ 17,890
Commercial and industrial
Troubled debt restructurings
Number of Loans | loans	9	10
Recorded Investment	$ 6,195	$ 8,330
Troubled Debt Restructuring, Combination of Extension of Term and Interest Rate Concession [Member] | Commercial real estate
Troubled debt restructurings
Number of Loans | loans	22	25
Recorded Investment	$ 6,949	$ 8,477
Troubled Debt Restructuring, Combination of Extension of Term and Interest Rate Concession [Member] | Commercial and industrial
Troubled debt restructurings
Number of Loans | loans	9	10
Recorded Investment	$ 6,195	$ 8,330
Troubled Debt Restructuring, Combination of Extension of Term and Interest Rate Concession [Member] | Consumer and other
Troubled debt restructurings
Number of Loans | loans	4	4
Recorded Investment	$ 257	$ 349
Troubled Debt Restructuring, Interest Rate Concession [Member] | Commercial real estate
Troubled debt restructurings
Number of Loans | securities	1	1
Recorded Investment	$ 53	$ 55
Troubled Debt Restructuring, Extension of Term [Member] | Commercial real estate
Troubled debt restructurings
Number of Loans | loans	1	1
Recorded Investment	$ 16	$ 24
Troubled Debt Restructuring, Extension of Term [Member] | Consumer and other
Troubled debt restructurings
Number of Loans | loans	1	1
Recorded Investment	$ 535	$ 655

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