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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

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+ References

No definition available.

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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

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