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Borrowing Arrangements	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
Borrowing Arrangements	NOTE 11 - BORROWING ARRANGEMENTS The Company has established secured and unsecured lines of credit.  The Company may borrow funds from time to time on a term or overnight basis from the Federal Home Loan Bank of San Francisco ("FHLB"), the Federal Reserve Bank of San Francisco ("FRB") and other financial institutions as indicated below. Federal Funds Arrangements with Commercial Banks.  At September 30, 2017, the Company may borrow on an unsecured basis, up to $20.0 million, $10.0 million, $12.0 million and $5.0 million overnight from Zions Bank, Wells Fargo Bank, First Tennessee National Bank, and Pacific Coast Bankers' Bank, respectively. Letter of Credit Arrangements.  At September 30, 2017, the Company had an unsecured commercial letter of credit line with Wells Fargo Bank for $2.0 million. FRB Secured Line of Credit.  The secured borrowing capacity of $15.2 million at September 30, 2017 is collateralized by loans pledged with a carrying value of $25.2 million. FHLB Secured Line of Credit.  The secured borrowing capacity of $326.9 million at September 30, 2017 is collateralized by loans pledged with a carrying value of $373.9 million. There were no amounts outstanding under any of the arrangements above at September 30, 2017 or December 31, 2016.

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- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-URI http://asc.fasb.org/topic&trid=2208564

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