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Loans Receivable and Allowance for Loan Losses - Schedule of Accruing and Nonaccrual TDRs (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | $ 1,675 | $ 8,071 | $ 6,616
Commercial and industrial (including owner occupied commercial real estate) |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 0 | 6,437 | 76
Residential real estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 352 | 0 | 2,410
Manufactured housing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 1,310 | 1,634 | 2,286
Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 13 | 0 | 0
Accruing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 11,624 | 12 | 12
Accruing | Commercial and industrial (including owner occupied commercial real estate) |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 64 | 0 | 0
Accruing | Commercial real estate owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 32 | 0 | 0
Accruing | Commercial real estate non-owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 0 | 0 | 0
Accruing | Residential real estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 3,026 | 4 | 4
Accruing | Manufactured housing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 8,502 | 8 | 7
Accruing | Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 0 | 0 | 0
Nonaccruing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 7,572 | 8 | 5
Nonaccruing | Commercial and industrial (including owner occupied commercial real estate) |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 5,273 | 6 | 0
Nonaccruing | Commercial real estate owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 0 | 0 | 0
Nonaccruing | Commercial real estate non-owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 0 | 0 | 2
Nonaccruing | Residential real estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 667 | 1 | 1
Nonaccruing | Manufactured housing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 1,620 | 2 | 2
Nonaccruing | Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 12 | 0 | 0
Total |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 19,196 | 20 | 16
Total | Commercial and industrial (including owner occupied commercial real estate) |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 5,337 | 6 | 0
Total | Commercial real estate owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 32 | 0 | 0
Total | Commercial real estate non-owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 0 | 0 | 2
Total | Residential real estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 3,693 | 5 | 5
Total | Manufactured housing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 10,122 | 10 | 10
Total | Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | $ 12 | $ 0 | $ 0

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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524 + Details
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