Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Past Due Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	$ 16,756	$ 5,853
Current	1,435,108	1,426,174
Non-accruing loans and leases	25,194	22,298
Total gross loans and leases receivable	$ 1,451,864	$ 1,432,027
30 to 59 days past due, percent of total portfolio	0.42%	0.21%
60 to 89 days past due, percent of total portfolio	0.04%	0.04%
Greater than 90 days past due, percent of portfolio	0.69%	0.16%
Past due, percent of total portfolio	1.15%	0.41%
Current, percent of total portfolio	98.85%	99.59%
Gross loans, percent of total portfolio	100.00%	100.00%
Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	$ 1,183	$ 473
Current	175,276	175,849
Non-accruing loans and leases	2,223	2,907
Total gross loans and leases receivable	176,459	176,322
Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	473,158	436,901
Non-accruing loans and leases	1,609	1,678
Total gross loans and leases receivable	473,158	436,901
Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	56,638	59,779
Non-accruing loans and leases	3,440	4,393
Total gross loans and leases receivable	56,638	59,779
Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	2,918	397
Current	98,288	100,228
Non-accruing loans and leases	2,918	397
Total gross loans and leases receivable	101,206	100,625
Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	92,762	80,254
Non-accruing loans and leases	0	2
Total gross loans and leases receivable	92,762	80,254
1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,315	1,437
Current	44,336	48,867
Non-accruing loans and leases	1,937	2,550
Total gross loans and leases receivable	45,651	50,304
Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	10,776	2,641
Current	439,522	469,552
Non-accruing loans and leases	12,463	9,136
Total gross loans and leases receivable	450,298	472,193
Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	30,951	31,093
Non-accruing loans and leases	0	38
Total gross loans and leases receivable	30,951	31,093
Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	250
Current	8,412	7,987
Non-accruing loans and leases	0	542
Total gross loans and leases receivable	8,412	8,237
Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	564	655
Current	15,765	15,664
Non-accruing loans and leases	604	655
Total gross loans and leases receivable	16,329	16,319
Accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	598	78
Current	1,426,072	1,409,651
Accruing loans and leases	1,426,670	1,409,729
Accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	174,236	173,416
Accruing loans and leases	174,236	173,416
Accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	471,549	435,222
Accruing loans and leases	471,549	435,222
Accruing loans and leases \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	53,198	55,386
Accruing loans and leases	53,198	55,386
Accruing loans and leases \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	98,288	100,228
Accruing loans and leases	98,288	100,228
Accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	92,762	80,252
Accruing loans and leases	92,762	80,252
Accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	75	78
Current	43,639	47,676
Accruing loans and leases	43,714	47,754
Accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	523	0
Current	437,312	463,057
Accruing loans and leases	437,835	463,057
Accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	30,951	31,055
Accruing loans and leases	30,951	31,055
Accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	8,412	7,695
Accruing loans and leases	8,412	7,695
Accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	15,725	15,664
Accruing loans and leases	15,725	15,664
Non-accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	16,158	5,775
Current	9,036	16,523
Non-accruing loans and leases	25,194	22,298
Non-accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,183	473
Current	1,040	2,433
Non-accruing loans and leases	2,223	2,906
Non-accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	1,609	1,679
Non-accruing loans and leases	1,609	1,679
Non-accruing loans and leases \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	3,440	4,393
Non-accruing loans and leases	3,440	4,393
Non-accruing loans and leases \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	2,918	397
Current	0	0
Non-accruing loans and leases	2,918	397
Non-accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	0	2
Non-accruing loans and leases	0	2
Non-accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,240	1,359
Current	697	1,191
Non-accruing loans and leases	1,937	2,550
Non-accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	10,253	2,641
Current	2,210	6,495
Non-accruing loans and leases	12,463	9,136
Non-accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Current	0	38
Non-accruing loans and leases	0	38
Non-accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	250
Current	0	292
Non-accruing loans and leases	0	542
Non-accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	564	655
Current	40	0
Non-accruing loans and leases	604	655
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	6,143	2,982
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	2,482	397
Financing Receivables, 30 to 59 Days Past Due [Member] \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	75	508
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	3,400	2,077
Financing Receivables, 30 to 59 Days Past Due [Member] \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	186	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	130	78
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	75	78
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	55	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	6,013	2,904
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	2,482	397
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	430
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	3,345	2,077
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] \| Non-accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	186	0
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	636	507
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	473
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	34
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	636	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	468	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	468	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	168	507
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	473
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	34
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	168	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] \| Non-accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	9,977	2,364
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,183	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	436	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,240	895
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	6,740	564
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	250
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	378	655
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	9,977	2,364
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,183	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| Land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| Construction
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	436	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	1,240	895
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	6,740	564
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	0	250
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Non-accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due	$ 378	$ 655

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Past Due Loans) (Details) - USD ($)
$ in Thousands

Dec. 31, 2016

Dec. 31, 2015

Financing Receivable, Recorded Investment, Aging [Abstract]

Total past due

$ 16,756

$ 5,853

Current

1,435,108

1,426,174

Non-accruing loans and leases

25,194