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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Troubled Debt Restructurings) (Details) $ in Thousands	Dec. 31, 2015 USD ($) loans	Dec. 31, 2014 USD ($) loans
Troubled debt restructurings:
Number of Loans | loans	42	40
Pre-Modification Recorded Investment	$ 20,721	$ 13,495
Post-Modification Recorded Investment	$ 17,890	$ 9,396
Commercial real estate — owner occupied
Troubled debt restructurings:
Number of Loans | loans	3	2
Pre-Modification Recorded Investment	$ 1,209	$ 624
Post-Modification Recorded Investment	$ 1,188	$ 577
Commercial real estate — non-owner occupied
Troubled debt restructurings:
Number of Loans | loans	5	5
Pre-Modification Recorded Investment	$ 1,150	$ 1,095
Post-Modification Recorded Investment	$ 904	$ 970
Construction and land development
Troubled debt restructurings:
Number of Loans | loans	3	4
Pre-Modification Recorded Investment	$ 6,034	$ 6,260
Post-Modification Recorded Investment	$ 4,593	$ 5,157
Multi-family
Troubled debt restructurings:
Number of Loans | loans	1	1
Pre-Modification Recorded Investment	$ 184	$ 184
Post-Modification Recorded Investment	$ 2	$ 17
1-4 family (1)
Troubled debt restructurings:
Number of Loans | loans	15	16
Pre-Modification Recorded Investment	$ 2,035	$ 2,119
Post-Modification Recorded Investment	$ 1,869	$ 1,368
Commercial & industrial (2)
Troubled debt restructurings:
Number of Loans | loans	10	4
Pre-Modification Recorded Investment	$ 7,572	$ 361
Post-Modification Recorded Investment	$ 8,330	$ 155
Home equity and second mortgages
Troubled debt restructurings:
Number of Loans | loans	4	6
Pre-Modification Recorded Investment	$ 461	$ 772
Post-Modification Recorded Investment	$ 349	$ 431
Other
Troubled debt restructurings:
Number of Loans | loans	1	2
Pre-Modification Recorded Investment	$ 2,076	$ 2,080
Post-Modification Recorded Investment	$ 655	$ 721

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