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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	Mar. 31, 2016 USD ($) loans	Dec. 31, 2015 USD ($) loans
Troubled debt restructurings
Number of Loans | loans	42	42
Pre-Modification Recorded Investment	$ 20,938	$ 20,721
Post-Modification Recorded Investment	$ 15,629	$ 17,890
Commercial real estate — owner occupied
Troubled debt restructurings
Number of Loans | loans	3	3
Pre-Modification Recorded Investment	$ 1,209	$ 1,209
Post-Modification Recorded Investment	$ 1,163	$ 1,188
Commercial real estate — non-owner occupied
Troubled debt restructurings
Number of Loans | loans	5	5
Pre-Modification Recorded Investment	$ 1,150	$ 1,150
Post-Modification Recorded Investment	$ 899	$ 904
Construction and land development
Troubled debt restructurings
Number of Loans | loans	3	3
Pre-Modification Recorded Investment	$ 6,034	$ 6,034
Post-Modification Recorded Investment	$ 4,351	$ 4,593
Multi-family
Troubled debt restructurings
Number of Loans | loans	0	1
Pre-Modification Recorded Investment	$ 0	$ 184
Post-Modification Recorded Investment	$ 0	$ 2
1-4 family
Troubled debt restructurings
Number of Loans | loans	15	15
Pre-Modification Recorded Investment	$ 2,035	$ 2,035
Post-Modification Recorded Investment	$ 1,840	$ 1,869
Commercial and industrial
Troubled debt restructurings
Number of Loans | loans	11	10
Pre-Modification Recorded Investment	$ 7,973	$ 7,572
Post-Modification Recorded Investment	$ 6,392	$ 8,330
Home equity and second mortgages
Troubled debt restructurings
Number of Loans | loans	4	4
Pre-Modification Recorded Investment	$ 461	$ 461
Post-Modification Recorded Investment	$ 343	$ 349
Other
Troubled debt restructurings
Number of Loans | loans	1	1
Pre-Modification Recorded Investment	$ 2,076	$ 2,076
Post-Modification Recorded Investment	$ 641	$ 655

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