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Loans - Impaired Loans - Average Recorded Investment and Interest Income Recognized (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Average Recorded Investment |  |  |
With no related allowance recorded | $ 20,982 | $ 27,868 | $ 35,043
With an allowance recorded | 605 | 518 | 6,185
Total impaired loans | 21,587 | 28,386 | 41,228
Interest Income Recognized |  |  |
With no related allowance recorded | 323 | 303 | 467
With an allowance recorded |  | 3 | 1
Total impaired loans | 323 | 306 | 468
Commercial |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 238 | 785 | 764
With an allowance recorded | 2 | 2 |
Real estate - commercial | Owner occupied general purpose |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 2,097 | 4,720 | 4,834
With an allowance recorded |  |  | 365
Interest Income Recognized |  |  |
With no related allowance recorded | 87 | 82 | 104
Real estate - commercial | Owner occupied special purpose |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 574 | 1,280 | 2,584
With an allowance recorded |  |  | 2,150
Interest Income Recognized |  |  |
With no related allowance recorded |  |  | 45
Real estate - commercial | Non-owner occupied general purpose |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 1,396 | 2,939 | 5,130
With an allowance recorded | 123 | 38 | 508
Interest Income Recognized |  |  |
With no related allowance recorded | 2 | 3 |
Real estate - commercial | Non-owner occupied special purpose |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 506 | 712 | 1,042
Real estate - commercial | Retail properties |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 590 |  | 1,572
Real estate - commercial | Farm |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 636 | 636 |
Real estate - residential | Investor |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 1,873 | 2,251 | 4,290
With an allowance recorded |  | 67 | 410
Interest Income Recognized |  |  |
With no related allowance recorded | 47 | 51 | 43
Real estate - residential | Owner occupied |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 10,182 | 10,979 | 10,299
With an allowance recorded | 457 | 68 | 794
Interest Income Recognized |  |  |
With no related allowance recorded | 158 | 160 | 187
With an allowance recorded |  |  | 1
Real estate - residential | Revolving and junior liens |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 2,608 | 2,484 | 2,004
With an allowance recorded | 23 | 208 | 934
Interest Income Recognized |  |  |
With no related allowance recorded | 29 | 7 | 6
With an allowance recorded |  | 3 |
Consumer |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 100 |  |
Construction Loans | Real estate - commercial | Homebuilder |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded |  | 895 | 1,903
With an allowance recorded |  |  | 84
Interest Income Recognized |  |  |
With no related allowance recorded |  |  | 82
Construction Loans | Real estate - commercial | Land |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded |  |  | 105
Construction Loans | Real estate - commercial | Commercial speculative |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 78 | 42 | 369
With an allowance recorded |  |  | 587
Construction Loans | Real estate - commercial | All other |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | $ 104 | 145 | 147
With an allowance recorded |  | $ 135 | $ 353

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