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Loans and Leases Receivable and Allowance for Loan and Lease Losses - Schedule of Accruing and Nonaccrual TDRs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Recorded investment	$ 47	$ 663	$ 946	$ 985
Commercial and industrial (including owner occupied commercial real estate)
Financing Receivable, Impaired [Line Items]
Recorded investment	0	0	431	0
Residential real estate
Financing Receivable, Impaired [Line Items]
Recorded investment	0	200	83	200
Manufactured housing
Financing Receivable, Impaired [Line Items]
Recorded investment	47	450	432	772
Other consumer
Financing Receivable, Impaired [Line Items]
Recorded investment	$ 0	$ 13	0	$ 13
Accruing TDRs
Financing Receivable, Impaired [Line Items]
Recorded investment			16,808		$ 11,624
Accruing TDRs | Commercial and industrial (including owner occupied commercial real estate)
Financing Receivable, Impaired [Line Items]
Recorded investment			5,205		64
Accruing TDRs | Commercial real estate owner occupied
Financing Receivable, Impaired [Line Items]
Recorded investment			23		32
Accruing TDRs | Residential real estate
Financing Receivable, Impaired [Line Items]
Recorded investment			3,024		3,026
Accruing TDRs | Manufactured housing
Financing Receivable, Impaired [Line Items]
Recorded investment			8,556		8,502
Accruing TDRs | Other consumer
Financing Receivable, Impaired [Line Items]
Recorded investment			0		0
Nonaccrual TDRs
Financing Receivable, Impaired [Line Items]
Recorded investment			2,190		7,572
Nonaccrual TDRs | Commercial and industrial (including owner occupied commercial real estate)
Financing Receivable, Impaired [Line Items]
Recorded investment			35		5,273
Nonaccrual TDRs | Commercial real estate owner occupied
Financing Receivable, Impaired [Line Items]
Recorded investment			0		0
Nonaccrual TDRs | Residential real estate
Financing Receivable, Impaired [Line Items]
Recorded investment			646		667
Nonaccrual TDRs | Manufactured housing
Financing Receivable, Impaired [Line Items]
Recorded investment			1,498		1,620
Nonaccrual TDRs | Other consumer
Financing Receivable, Impaired [Line Items]
Recorded investment			11		12
Total
Financing Receivable, Impaired [Line Items]
Recorded investment			18,998		19,196
Total | Commercial and industrial (including owner occupied commercial real estate)
Financing Receivable, Impaired [Line Items]
Recorded investment			5,240		5,337
Total | Commercial real estate owner occupied
Financing Receivable, Impaired [Line Items]
Recorded investment			23		32
Total | Residential real estate
Financing Receivable, Impaired [Line Items]
Recorded investment			3,670		3,693
Total | Manufactured housing
Financing Receivable, Impaired [Line Items]
Recorded investment			10,054		10,122
Total | Other consumer
Financing Receivable, Impaired [Line Items]
Recorded investment			$ 11		$ 12

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Amount, after troubled debt restructuring, of modified financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

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