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Investment Securities - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	$ 317,544	$ 305,579
Fair Value	299,064	305,179
Other securities pledged
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	53,673	56,419
Fair Value	50,333	55,633
Washington and Oregon State to Secure Public Deposits [Member]
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	139,817	128,216
Fair Value	134,625	130,217
Repurchase Agreements [Member]
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	63,088	59,887
Fair Value	59,144	59,655
Federal Reserve Bank Advances
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	60,966	61,057
Fair Value	$ 54,962	$ 59,674

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- Definition

Scheduled of amortized cost and fair value of securities pledged as collateral.

+ References

No definition available.

+ Details

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- Definition

Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818

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- Definition

The sum of the fair values, as of the date of each statement of financial position presented, of securities that are restricted as collateral for the payment of related debt obligations, primarily secured borrowings and repurchase agreements, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728

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