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Loans - Impaired Loans - Average Recorded Investment and Interest Income Recognized (Details) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016
Average Recorded Investment |  |
With no related allowance recorded | $ 20,636 | $ 21,492
With an allowance recorded | 551 | 513
Total impaired loans | 21,187 | 22,005
Interest Income Recognized |  |
With no related allowance recorded | 184 | 232
With an allowance recorded | 2 | 31
Total impaired loans | 186 | 263
Commercial |  |
Average Recorded Investment |  |
With no related allowance recorded | 123 | 326
With an allowance recorded |  | 2
Lease financing receivables |  |
Average Recorded Investment |  |
With no related allowance recorded | 281 |
Real estate - commercial | Owner occupied general purpose |  |
Average Recorded Investment |  |
With no related allowance recorded | 1,169 | 2,412
Interest Income Recognized |  |
With no related allowance recorded |  | 66
Real estate - commercial | Owner occupied special purpose |  |
Average Recorded Investment |  |
With no related allowance recorded | 372 | 580
Real estate - commercial | Non-owner occupied general purpose |  |
Average Recorded Investment |  |
With no related allowance recorded | 1,481 | 1,655
With an allowance recorded | 123 | 132
Interest Income Recognized |  |
With no related allowance recorded | 2 | 2
With an allowance recorded |  | 31
Real estate - commercial | Non-owner occupied special purpose |  |
Average Recorded Investment |  |
With no related allowance recorded | 507 | 506
Real estate - commercial | Retail properties |  |
Average Recorded Investment |  |
With no related allowance recorded | 1,146 | 990
Real estate - commercial | Farm |  |
Average Recorded Investment |  |
With no related allowance recorded |  | 636
Real estate - residential | Investor |  |
Average Recorded Investment |  |
With no related allowance recorded | 1,607 | 1,864
Interest Income Recognized |  |
With no related allowance recorded | 36 | 35
Real estate - residential | Multifamily |  |
Average Recorded Investment |  |
With no related allowance recorded | 2,379 |
Real estate - residential | Owner occupied |  |
Average Recorded Investment |  |
With no related allowance recorded | 8,987 | 9,916
With an allowance recorded | 402 | 356
Interest Income Recognized |  |
With no related allowance recorded | 119 | 120
Real estate - residential | Revolving and junior liens |  |
Average Recorded Investment |  |
With no related allowance recorded | 2,237 | 2,527
With an allowance recorded | 26 | 23
Interest Income Recognized |  |
With no related allowance recorded | 27 | 9
With an allowance recorded | 2 |
Consumer |  |
Average Recorded Investment |  |
With no related allowance recorded | 104 |
Construction Loans | Real estate - commercial | Commercial speculative |  |
Average Recorded Investment |  |
With no related allowance recorded | 37 | $ 80
Construction Loans | Real estate - commercial | All other |  |
Average Recorded Investment |  |
With no related allowance recorded | $ 206 |

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
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