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Loans - Impaired Loans - Recorded Investment, Unpaid Principal Balance and Related Allowance (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Recorded Investment |  |
With no related allowance recorded | $ 14,855 | $ 21,238
With an allowance recorded | 5,257 | 1,049
Total impaired loans | 20,112 | 22,287
Unpaid Principal Balance |  |
With no related allowance recorded | 17,792 | 25,321
With an allowance recorded | 5,257 | 1,448
Total impaired loans | 23,049 | 26,769
Related Allowance |  |
With an allowance recorded | 144 | 1,049
Multifamily |  |
Recorded Investment |  |
With no related allowance recorded | 4,723 |
Unpaid Principal Balance |  |
With no related allowance recorded | 4,965 |
Commercial |  |
Recorded Investment |  |
With no related allowance recorded |  | 240
Unpaid Principal Balance |  |
With no related allowance recorded |  | 388
Lease financing receivables |  |
Recorded Investment |  |
With no related allowance recorded | 178 | 366
Unpaid Principal Balance |  |
With no related allowance recorded | 213 | 371
Real estate - commercial | Owner occupied general purpose |  |
Recorded Investment |  |
With no related allowance recorded | 455 | 1,881
Unpaid Principal Balance |  |
With no related allowance recorded | 495 | 2,131
Real estate - commercial | Owner occupied special purpose |  |
Recorded Investment |  |
With no related allowance recorded | 342 | 385
Unpaid Principal Balance |  |
With no related allowance recorded | 498 | 518
Real estate - commercial | Non-owner occupied general purpose |  |
Recorded Investment |  |
With no related allowance recorded | 1,163 | 1,744
With an allowance recorded |  | 246
Unpaid Principal Balance |  |
With no related allowance recorded | 1,538 | 2,010
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 | 1,081 | 1,179
Unpaid Principal Balance |  |
With no related allowance recorded | 1,177 | 1,235
Real estate - residential | Investor |  |
Recorded Investment |  |
With no related allowance recorded | 372 | 1,841
With an allowance recorded | 829 |
Unpaid Principal Balance |  |
With no related allowance recorded | 676 | 2,308
With an allowance recorded | 829 |
Related Allowance |  |
With an allowance recorded | 10 |
Real estate - residential | Owner occupied |  |
Recorded Investment |  |
With no related allowance recorded | 5,208 | 9,824
With an allowance recorded | 3,443 | 803
Unpaid Principal Balance |  |
With no related allowance recorded | 6,680 | 11,391
With an allowance recorded | 3,443 | 853
Related Allowance |  |
With an allowance recorded | 43 | 803
Real estate - residential | Revolving and junior liens |  |
Recorded Investment |  |
With no related allowance recorded | 1,125 | 2,484
With an allowance recorded | 985 |
Unpaid Principal Balance |  |
With no related allowance recorded | 1,313 | 3,018
With an allowance recorded | 985 |
Related Allowance |  |
With an allowance recorded | 91 |
Consumer |  |
Recorded Investment |  |
With no related allowance recorded | 7 |
Unpaid Principal Balance |  |
With no related allowance recorded | 8 |
Construction Loans | Real estate - commercial | Commercial speculative |  |
Recorded Investment |  |
With no related allowance recorded |  | 74
Unpaid Principal Balance |  |
With no related allowance recorded |  | 81
Construction Loans | Real estate - commercial | All other |  |
Recorded Investment |  |
With no related allowance recorded | 201 | 207
Unpaid Principal Balance |  |
With no related allowance recorded | $ 229 | $ 221

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