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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	Jun. 30, 2016 USD ($) loans	Dec. 31, 2015 USD ($) loans
Troubled debt restructurings
Number of Loans | loans	38	42
Pre-Modification Recorded Investment	$ 19,802	$ 20,721
Post-Modification Recorded Investment	$ 14,005	$ 17,890
Commercial real estate — owner occupied
Troubled debt restructurings
Number of Loans | loans	3	3
Pre-Modification Recorded Investment	$ 1,208	$ 1,209
Post-Modification Recorded Investment	$ 1,143	$ 1,188
Commercial real estate — non-owner occupied
Troubled debt restructurings
Number of Loans | loans	4	5
Pre-Modification Recorded Investment	$ 445	$ 1,150
Post-Modification Recorded Investment	$ 256	$ 904
Land development
Troubled debt restructurings
Number of Loans | loans	2	2
Pre-Modification Recorded Investment	$ 5,834	$ 5,853
Post-Modification Recorded Investment	$ 3,828	$ 4,393
Construction
Troubled debt restructurings
Number of Loans | loans	1	1
Pre-Modification Recorded Investment	$ 201	$ 181
Post-Modification Recorded Investment	$ 184	$ 200
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	14	15
Pre-Modification Recorded Investment	$ 1,795	$ 2,035
Post-Modification Recorded Investment	$ 1,607	$ 1,869
Commercial and industrial
Troubled debt restructurings
Number of Loans | loans	9	10
Pre-Modification Recorded Investment	$ 7,782	$ 7,572
Post-Modification Recorded Investment	$ 6,195	$ 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	$ 257	$ 349
Other
Troubled debt restructurings
Number of Loans | loans	1	1
Pre-Modification Recorded Investment	$ 2,076	$ 2,076
Post-Modification Recorded Investment	$ 535	$ 655

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