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Loans - Impaired Loans - Recorded Investment, Unpaid Principal Balance and Related Allowance (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Recorded Investment |  |
With no related allowance recorded | $ 21,238 | $ 20,725
With an allowance recorded | 1,049 | 161
Total impaired loans | 22,287 | 20,886
Unpaid Principal Balance |  |
With no related allowance recorded | 25,321 | 24,718
With an allowance recorded | 1,448 | 166
Total impaired loans | 26,769 | 24,884
Related Allowance |  |
With an allowance recorded | 1,049 | 34
Commercial |  |
Recorded Investment |  |
With no related allowance recorded | 405 | 70
With an allowance recorded |  | 3
Unpaid Principal Balance |  |
With no related allowance recorded | 491 | 149
With an allowance recorded |  | 8
Related Allowance |  |
With an allowance recorded |  | 3
Real estate - commercial | Owner occupied general purpose |  |
Recorded Investment |  |
With no related allowance recorded | 1,881 | 2,314
Unpaid Principal Balance |  |
With no related allowance recorded | 2,131 | 3,004
Real estate - commercial | Owner occupied special purpose |  |
Recorded Investment |  |
With no related allowance recorded | 385 | 763
Unpaid Principal Balance |  |
With no related allowance recorded | 518 | 871
Real estate - commercial | Non-owner occupied general purpose |  |
Recorded Investment |  |
With no related allowance recorded | 1,744 | 1,047
With an allowance recorded | 246 |
Unpaid Principal Balance |  |
With no related allowance recorded | 2,010 | 1,065
With an allowance recorded | 595 |
Related Allowance |  |
With an allowance recorded | 246 |
Real estate - commercial | Non-owner occupied special purpose |  |
Recorded Investment |  |
With no related allowance recorded | 1,013 |
Unpaid Principal Balance |  |
With no related allowance recorded | 1,649 |
Real estate - commercial | Retail properties |  |
Recorded Investment |  |
With no related allowance recorded | 1,179 |
Unpaid Principal Balance |  |
With no related allowance recorded | 1,235 |
Real estate - commercial | Farm |  |
Recorded Investment |  |
With no related allowance recorded |  | 1,272
Unpaid Principal Balance |  |
With no related allowance recorded |  | 1,338
Real estate - residential | Investor |  |
Recorded Investment |  |
With no related allowance recorded | 1,841 | 1,906
Unpaid Principal Balance |  |
With no related allowance recorded | 2,308 | 2,259
Real estate - residential | Owner occupied |  |
Recorded Investment |  |
With no related allowance recorded | 9,824 | 10,539
With an allowance recorded | 803 | 112
Unpaid Principal Balance |  |
With no related allowance recorded | 11,391 | 11,999
With an allowance recorded | 853 | 112
Related Allowance |  |
With an allowance recorded | 803 | 31
Real estate - residential | Revolving and junior liens |  |
Recorded Investment |  |
With no related allowance recorded | 2,484 | 2,731
With an allowance recorded |  | 46
Unpaid Principal Balance |  |
With no related allowance recorded | 3,018 | 3,947
With an allowance recorded |  | 46
Consumer |  |
Recorded Investment |  |
With no related allowance recorded | 201 |
Unpaid Principal Balance |  |
With no related allowance recorded | 268 |
Construction Loans | Real estate - commercial | Commercial speculative |  |
Recorded Investment |  |
With no related allowance recorded | 74 | 83
Unpaid Principal Balance |  |
With no related allowance recorded | 81 | $ 86
Construction Loans | Real estate - commercial | All other |  |
Recorded Investment |  |
With no related allowance recorded | 207 |
Unpaid Principal Balance |  |
With no related allowance recorded | $ 221 |

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