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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Impaired Loans and Leases) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Recorded investment |  |  |
With no impairment reserve recorded | $ 16,975 | $ 11,345 | $ 15,175
With impairment reserve recorded | 9,746 | 14,566 | 8,858
Total | 26,721 | 25,911 | 24,033
Unpaid principal balance |  |  |
With no impairment reserve recorded | 21,671 | 14,722 | 19,026
With impairment reserve recorded | 11,694 | 14,572 | 8,863
Total | 33,365 | 29,294 | 27,889
Impairment reserve |  |  |
Impairment reserve | 4,491 | 5,599 | 1,113
Average recorded investment |  |  |
With no impairment reserve recorded | 18,624 | 13,371 | 9,721
With impairment reserve recorded | 14,540 | 9,615 | 1,722
Total | 33,164 | 22,986 | 11,443
Foregone interest income |  |  |
With no impairment reserve recorded | 1,898 | 838 | 597
With impairment reserve recorded | 797 | 779 | 153
Total | 2,695 | 1,617 | 750
Interest income recognized |  |  |
With no impairment reserve recorded | 454 | 614 | 85
With impairment reserve recorded | 0 | 0 | 2
Total | 454 | 614 | 87
Net foregone interest income |  |  |
With no impairment reserve recorded | 1,444 | 224 | 512
With impairment reserve recorded | 797 | 779 | 151
Total | 2,241 | 1,003 | 663
Commercial real estate — owner occupied |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 7,077 | 1,788 | 2,164
With impairment reserve recorded | 0 | 499 | 814
Total | 7,077 | 2,287 | 2,978
Unpaid principal balance |  |  |
With no impairment reserve recorded | 7,077 | 1,788 | 2,164
With impairment reserve recorded | 0 | 499 | 814
Total | 7,077 | 2,287 | 2,978
Impairment reserve |  |  |
Impairment reserve | 0 | 70 | 20
Average recorded investment |  |  |
With no impairment reserve recorded | 5,549 | 3,577 | 712
With impairment reserve recorded | 0 | 111 | 215
Total | 5,549 | 3,688 | 927
Foregone interest income |  |  |
With no impairment reserve recorded | 613 | 328 | 53
With impairment reserve recorded | 0 | 28 | 7
Total | 613 | 356 | 60
Interest income recognized |  |  |
With no impairment reserve recorded | 0 | 118 | 12
With impairment reserve recorded | 0 | 0 | 2
Total | 0 | 118 | 14
Net foregone interest income |  |  |
With no impairment reserve recorded | 613 | 210 | 41
With impairment reserve recorded | 0 | 28 | 5
Total | 613 | 238 | 46
Commercial real estate — non-owner occupied |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 34 | 1,609 | 2,314
With impairment reserve recorded | 0 | 0 | 0
Total | 34 | 1,609 | 2,314
Unpaid principal balance |  |  |
With no impairment reserve recorded | 75 | 1,647 | 2,355
With impairment reserve recorded | 0 | 0 | 0
Total | 75 | 1,647 | 2,355
Impairment reserve |  |  |
Impairment reserve | 0 | 0 | 0
Average recorded investment |  |  |
With no impairment reserve recorded | 1,830 | 1,318 | 962
With impairment reserve recorded | 0 | 0 | 0
Total | 1,830 | 1,318 | 962
Foregone interest income |  |  |
With no impairment reserve recorded | 97 | 91 | 25
With impairment reserve recorded | 0 | 0 | 0
Total | 97 | 91 | 25
Interest income recognized |  |  |
With no impairment reserve recorded | 226 | 79 | 0
With impairment reserve recorded | 0 | 0 | 0
Total | 226 | 79 | 0
Net foregone interest income |  |  |
With no impairment reserve recorded | (129) | 12 | 25
With impairment reserve recorded | 0 | 0 | 0
Total | (129) | 12 | 25
Land development |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 2,627 | 3,440 | 4,413
With impairment reserve recorded | 0 | 0 | 0
Total | 2,627 | 3,440 | 4,413
Unpaid principal balance |  |  |
With no impairment reserve recorded | 5,297 | 6,111 | 7,083
With impairment reserve recorded | 0 | 0 | 0
Total | 5,297 | 6,111 | 7,083
Impairment reserve |  |  |
Impairment reserve | 0 | 0 | 0
Average recorded investment |  |  |
With no impairment reserve recorded | 3,092 | 3,898 | 4,333
With impairment reserve recorded | 0 | 0 | 0
Total | 3,092 | 3,898 | 4,333
Foregone interest income |  |  |
With no impairment reserve recorded | 84 | 107 | 133
With impairment reserve recorded | 0 | 0 | 0
Total | 84 | 107 | 133
Interest income recognized |  |  |
With no impairment reserve recorded | 0 | 0 | 0
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 0 | 0
Net foregone interest income |  |  |
With no impairment reserve recorded | 84 | 107 | 133
With impairment reserve recorded | 0 | 0 | 0
Total | 84 | 107 | 133
Construction |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 0 | 436 | 120
With impairment reserve recorded | 2,872 | 2,482 | 397
Total | 2,872 | 2,918 | 517
Unpaid principal balance |  |  |
With no impairment reserve recorded | 0 | 438 | 120
With impairment reserve recorded | 2,872 | 2,482 | 397
Total | 2,872 | 2,920 | 517
Impairment reserve |  |  |
Impairment reserve | 415 | 1,790 | 48
Average recorded investment |  |  |
With no impairment reserve recorded | 2,000 | 291 | 474
With impairment reserve recorded | 2,252 | 834 | 34
Total | 4,252 | 1,125 | 508
Foregone interest income |  |  |
With no impairment reserve recorded | 134 | 20 | 0
With impairment reserve recorded | 158 | 45 | 0
Total | 292 | 65 | 0
Interest income recognized |  |  |
With no impairment reserve recorded | 214 | 0 | 0
With impairment reserve recorded | 0 | 0 | 0
Total | 214 | 0 | 0
Net foregone interest income |  |  |
With no impairment reserve recorded | (80) | 20 | 0
With impairment reserve recorded | 158 | 45 | 0
Total | 78 | 65 | 0
Multi-family |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 0 | 0 | 2
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 0 | 2
Unpaid principal balance |  |  |
With no impairment reserve recorded | 0 | 0 | 369
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 0 | 369
Impairment reserve |  |  |
Impairment reserve | 0 | 0 | 0
Average recorded investment |  |  |
With no impairment reserve recorded | 1 | 0 | 10
With impairment reserve recorded | 0 | 0 | 0
Total | 1 | 0 | 10
Foregone interest income |  |  |
With no impairment reserve recorded | 0 | 1 | 27
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 1 | 27
Interest income recognized |  |  |
With no impairment reserve recorded | 0 | 134 | 0
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 134 | 0
Net foregone interest income |  |  |
With no impairment reserve recorded | 0 | (133) | 27
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | (133) | 27
1-4 family |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 1,423 | 2,379 | 2,423
With impairment reserve recorded | 0 | 193 | 945
Total | 1,423 | 2,572 | 3,368
Unpaid principal balance |  |  |
With no impairment reserve recorded | 1,706 | 2,379 | 2,486
With impairment reserve recorded | 0 | 199 | 950
Total | 1,706 | 2,578 | 3,436
Impairment reserve |  |  |
Impairment reserve | 0 | 39 | 173
Average recorded investment |  |  |
With no impairment reserve recorded | 2,146 | 2,755 | 1,604
With impairment reserve recorded | 0 | 203 | 605
Total | 2,146 | 2,958 | 2,209
Foregone interest income |  |  |
With no impairment reserve recorded | 53 | 125 | 82
With impairment reserve recorded | 0 | 5 | 34
Total | 53 | 130 | 116
Interest income recognized |  |  |
With no impairment reserve recorded | 7 | 94 | 4
With impairment reserve recorded | 0 | 0 | 0
Total | 7 | 94 | 4
Net foregone interest income |  |  |
With no impairment reserve recorded | 46 | 31 | 78
With impairment reserve recorded | 0 | 5 | 34
Total | 46 | 36 | 112
Commercial and industrial |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 5,465 | 1,307 | 2,546
With impairment reserve recorded | 6,865 | 11,166 | 6,603
Total | 12,330 | 12,473 | 9,149
Unpaid principal balance |  |  |
With no impairment reserve recorded | 6,502 | 1,307 | 2,590
With impairment reserve recorded | 8,813 | 11,166 | 6,603
Total | 15,315 | 12,473 | 9,193
Impairment reserve |  |  |
Impairment reserve | 4,067 | 3,700 | 847
Average recorded investment |  |  |
With no impairment reserve recorded | 3,634 | 709 | 544
With impairment reserve recorded | 12,288 | 8,448 | 810
Total | 15,922 | 9,157 | 1,354
Foregone interest income |  |  |
With no impairment reserve recorded | 858 | 79 | 172
With impairment reserve recorded | 639 | 701 | 102
Total | 1,497 | 780 | 274
Interest income recognized |  |  |
With no impairment reserve recorded | 7 | 62 | 6
With impairment reserve recorded | 0 | 0 | 0
Total | 7 | 62 | 6
Net foregone interest income |  |  |
With no impairment reserve recorded | 851 | 17 | 166
With impairment reserve recorded | 639 | 701 | 102
Total | 1,490 | 718 | 268
Direct financing leases, net |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 0 | 0 | 38
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 0 | 38
Unpaid principal balance |  |  |
With no impairment reserve recorded | 0 | 0 | 38
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 0 | 38
Impairment reserve |  |  |
Impairment reserve | 0 | 0 | 0
Average recorded investment |  |  |
With no impairment reserve recorded | 0 | 6 | 4
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 6 | 4
Foregone interest income |  |  |
With no impairment reserve recorded | 0 | 0 | 0
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 0 | 0
Interest income recognized |  |  |
With no impairment reserve recorded | 0 | 0 | 0
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 0 | 0
Net foregone interest income |  |  |
With no impairment reserve recorded | 0 | 0 | 0
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 0 | 0
Home equity and second mortgages |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 4 | 8 | 500
With impairment reserve recorded | 0 | 0 | 99
Total | 4 | 8 | 599
Unpaid principal balance |  |  |
With no impairment reserve recorded | 3 | 8 | 500
With impairment reserve recorded | 0 | 0 | 99
Total | 3 | 8 | 599
Impairment reserve |  |  |
Impairment reserve | 0 | 0 | 25
Average recorded investment |  |  |
With no impairment reserve recorded | 7 | 307 | 390
With impairment reserve recorded | 0 | 0 | 58
Total | 7 | 307 | 448
Foregone interest income |  |  |
With no impairment reserve recorded | 0 | 16 | 23
With impairment reserve recorded | 0 | 0 | 10
Total | 0 | 16 | 33
Interest income recognized |  |  |
With no impairment reserve recorded | 0 | 127 | 63
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 127 | 63
Net foregone interest income |  |  |
With no impairment reserve recorded | 0 | (111) | (40)
With impairment reserve recorded | 0 | 0 | 10
Total | 0 | (111) | (30)
Other |  |  |
Recorded investment |  |  |
With no impairment reserve recorded | 345 | 378 | 655
With impairment reserve recorded | 9 | 226 | 0
Total | 354 | 604 | 655
Unpaid principal balance |  |  |
With no impairment reserve recorded | 1,011 | 1,044 | 1,321
With impairment reserve recorded | 9 | 226 | 0
Total | 1,020 | 1,270 | 1,321
Impairment reserve |  |  |
Impairment reserve | 9 | 0 | 0
Average recorded investment |  |  |
With no impairment reserve recorded | 365 | 510 | 688
With impairment reserve recorded | 0 | 19 | 0
Total | 365 | 529 | 688
Foregone interest income |  |  |
With no impairment reserve recorded | 59 | 71 | 82
With impairment reserve recorded | 0 | 0 | 0
Total | 59 | 71 | 82
Interest income recognized |  |  |
With no impairment reserve recorded | 0 | 0 | 0
With impairment reserve recorded | 0 | 0 | 0
Total | 0 | 0 | 0
Net foregone interest income |  |  |
With no impairment reserve recorded | 59 | 71 | 82
With impairment reserve recorded | 0 | 0 | 0
Total | $ 59 | $ 71 | $ 82

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