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Borrowing Arrangements - Federal Home Loan Bank Borrowings, Federal Reserve Bank Borrowings, and Available Lines of Credit (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
FHLB
Borrowing Arrangements
Securities pledged as collateral		$ 0
FHLB | Line of credit | FHLB of San Francisco
Borrowing Arrangements
FHLB overnight borrowings	$ 0	0
FHLB
Borrowing Arrangements
Loans pledged as collateral		272,879,000
Securities pledged as collateral	3,202,000
Amount outstanding	0
Line of credit	3,041,000	$ 228,103,000
FHLB | Line of credit | FHLB of San Francisco
Borrowing Arrangements
Loans pledged as collateral	232,632,000
Line of credit	$ 160,523,000

X

- Definition

Amount of advance from Federal Home Loan Bank (FHLBank) maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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X

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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X

- References

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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X

- Definition

Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.

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