Bank of Marin Bancorp (BMRC) 10-Q 8 Aug 23 2023 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2023	Jul. 31, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
Document Transition Report	false
Entity File Number	001-33572
Entity Registrant Name	Bank of Marin Bancorp
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	20-8859754
Entity Address, Address Line One	504 Redwood Blvd.
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Novato
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94947
City Area Code	415
Local Phone Number	763-4520
Title of 12(b) Security	Common stock, no par value
Trading Symbol	BMRC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Smaller Reporting Company	false
Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		16,120,092
Entity Central Index Key	0001403475
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Amendment Flag	false

CONSOLIDATED STATEMENTS OF COND

CONSOLIDATED STATEMENTS OF CONDITION - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Assets
Cash, cash equivalents and restricted cash	$ 39,657	$ 45,424
Investment securities:
Held-to-maturity, at amortized cost (net of zero allowance for credit losses at June 30, 2023 and December 31, 2022)	946,808	972,207
Available-for-sale, at fair value (net of zero allowance for credit losses at June 30, 2023 and December 31, 2022)	770,942	802,096
Total investment securities	1,717,750	1,774,303
Loans, at amortized cost	2,102,796	2,092,546
Allowance for credit losses on loans	(23,832)	(22,983)
Total loans, net of allowance for credit losses on loans	2,078,964	2,069,563
Goodwill	72,754	72,754
Bank-owned life insurance	67,367	67,066
Operating lease right-of-use assets	22,739	24,821
Bank premises and equipment, net	8,683	8,134
Core deposit intangible, net	4,431	5,116
Other real estate owned	415	455
Interest receivable and other assets	79,373	79,828
Total assets	4,092,133	4,147,464
Deposits:
Non-interest bearing	1,588,723	1,839,114
Interest bearing
Transaction accounts	229,434	287,651
Savings accounts	274,510	338,163
Money market accounts	1,029,082	989,390
Time accounts	203,463	119,030
Total deposits	3,325,212	3,573,348
Short-term borrowings and other obligations	292,572	112,439
Operating lease liabilities	25,220	26,639
Interest payable and other liabilities	25,188	22,946
Total liabilities	3,668,192	3,735,372
Commitments and contingent liabilities (Note 8)
Stockholders' Equity
Preferred stock, no par value, Authorized - 5,000,000 shares, none issued	0	0
Common stock, no par value, Authorized - 30,000,000 shares; issued and outstanding - 16,107,192 and 16,029,138 at June 30, 2023 and December 31, 2022, respectively	216,589	215,057
Retained earnings	276,732	270,781
Accumulated other comprehensive loss, net of taxes	(69,380)	(73,746)
Total stockholders' equity	423,941	412,092
Total liabilities and stockholders' equity	$ 4,092,133	$ 4,147,464

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Investment securities:
Held-to-maturity, allowance for credit Loss	$ 0	$ 0
Available-for-sale, allowance for credit loss	$ 0	$ 0
Stockholders' Equity
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued (in shares)	0	0
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	16,107,192	16,029,138
Common stock, outstanding (in shares)	16,107,192	16,029,138

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest income
Interest and fees on loans	$ 24,579	$ 24,258	$ 23,334	$ 48,837	$ 47,011
Interest on investment securities	9,994	10,033	8,273	20,027	14,966
Interest on federal funds sold and due from banks	48	56	180	104	286
Total interest income	34,621	34,347	31,787	68,968	62,263
Interest expense
Interest on interest-bearing transaction accounts	234	254	53	488	109
Interest on savings accounts	146	170	32	316	61
Interest on money market accounts	4,292	1,085	438	5,377	916
Interest on time accounts	946	223	67	1,169	81
Interest on borrowings and other obligations	4,873	2,716	0	7,589	1
Total interest expense	10,491	4,448	590	14,939	1,168
Net interest income	24,130	29,899	31,197	54,029	61,095
Provision for (reversal of) credit losses on loans	500	350	0	850	(485)
Reversal of credit losses on unfunded loan commitments	(168)	(174)	0	(342)	(318)
Net interest income after provision for (reversal of) credit losses	23,798	29,723	31,197	53,521	61,898
Non-interest income
Earnings on bank-owned life insurance, net	362	705	298	1,067	711
Dividends on Federal Home Loan Bank stock	290	302	249	592	508
Other income	326	304	406	630	868
Total non-interest income	2,739	2,935	2,728	5,674	5,595
Non-interest expense
Salaries and related benefits	11,416	10,930	10,341	22,346	21,889
Occupancy and equipment	1,980	2,414	1,891	4,394	3,798
Professional services	797	1,123	665	1,920	1,578
Data processing	922	1,045	1,199	1,967	2,476
Depreciation and amortization	400	882	393	1,282	845
Information technology	357	370	468	727	946
Amortization of core deposit intangible	340	345	374	685	754
Directors' expense	300	321	294	621	605
Federal Deposit Insurance Corporation insurance	666	289	296	955	586
Charitable contributions	638	49	511	687	556
Other real estate owned	44	4	3	48	5
Other expense	2,805	2,008	2,471	4,813	4,243
Total non-interest expense	20,665	19,780	18,906	40,445	38,281
Income before provision for income taxes	5,872	12,878	15,019	18,750	29,212
Provision for income taxes	1,321	3,438	3,953	4,759	7,681
Net income	$ 4,551	$ 9,440	$ 11,066	$ 13,991	$ 21,531
Net income per common share:
Basic (in dollars per share)	$ 0.28	$ 0.59	$ 0.70	$ 0.88	$ 1.35
Diluted (in dollars per share)	$ 0.28	$ 0.59	$ 0.69	$ 0.87	$ 1.35
Weighted average shares:
Basic (in shares)	16,009	15,970	15,921	15,990	15,898
Diluted (in shares)	16,016	15,999	15,955	16,008	15,950
Comprehensive (loss) income:
Net income	$ 4,551	$ 9,440	$ 11,066	$ 13,991	$ 21,531
Other comprehensive (loss) income:
Change in net unrealized gains or losses on available-for-sale securities	(10,928)	16,213	(27,050)	5,285	(65,278)
Net unrealized losses on securities transferred from available-for-sale to held-to-maturity	0	0	0	0	(14,847)
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity	451	463	472	914	616
Other comprehensive (loss) income, before tax	(10,477)	16,676	(26,578)	6,199	(79,509)
Deferred tax (benefit) expense	(3,097)	4,930	(7,857)	1,833	(23,505)
Other comprehensive (loss) income, net of tax	(7,380)	11,746	(18,721)	4,366	(56,004)
Total comprehensive (loss) income	(2,829)	21,186	(7,655)	18,357	(34,473)
Wealth Management and Trust Services
Non-interest income
Wealth management and trust services, debit card interchange fees net, service charges on deposit accounts and merchant interchange fees net	559	511	630	1,070	1,230
Service charges on deposit accounts
Non-interest income
Wealth management and trust services, debit card interchange fees net, service charges on deposit accounts and merchant interchange fees net	520	533	465	1,053	953
Debit card interchange fees, net
Non-interest income
Wealth management and trust services, debit card interchange fees net, service charges on deposit accounts and merchant interchange fees net	555	447	531	1,002	1,036
Merchant interchange fees, net
Non-interest income
Wealth management and trust services, debit card interchange fees net, service charges on deposit accounts and merchant interchange fees net	$ 127	$ 133	$ 149	$ 260	$ 289

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive (Loss) Income, Net of Taxes
Beginning balance (in shares) at Dec. 31, 2021		15,929,243
Beginning balance at Dec. 31, 2021	$ 450,368	$ 212,524	$ 239,868	$ (2,024)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	21,531		21,531
Other comprehensive (loss) income, net of tax	(56,004)			(56,004)
Stock options exercised, net of shares surrendered for cashless exercises and tax withholdings (in shares)		40,311
Stock options exercised, net of shares surrendered for cashless exercises and tax withholdings	820	$ 820
Stock issued under employee stock purchase plan (in shares)		936
Stock issued under employee stock purchase plan	30	$ 30
Stock issued under employee stock ownership plan (in shares)		25,000
Stock issued under employee stock ownership plan	829	$ 829
Restricted stock granted (in shares)		46,672
Restricted stock surrendered for tax withholdings upon vesting (in shares)		(1,169)
Restricted stock surrendered for tax withholdings upon vesting	(40)	$ (40)
Restricted stock forfeited / cancelled (in shares)		(13,267)
Stock-based compensation - stock options	115	$ 115
Stock-based compensation - restricted stock	270	$ 270
Cash dividends paid on common stock	(7,662)		(7,662)
Stock issued in payment of director fees (in shares)		5,149
Stock issued in payment of director fees	193	$ 193
Stock repurchased, including commissions (in shares)		(23,275)
Stock repurchased, including commissions	(877)	$ (877)
Ending balance (in shares) at Jun. 30, 2022		16,009,600
Ending balance at Jun. 30, 2022	409,573	$ 213,864	253,737	(58,028)
Beginning balance (in shares) at Mar. 31, 2022		16,003,847
Beginning balance at Mar. 31, 2022	420,408	$ 213,204	246,511	(39,307)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,066		11,066
Other comprehensive (loss) income, net of tax	(18,721)			(18,721)
Stock options exercised, net of shares surrendered for cashless exercises and tax withholdings (in shares)		4,768
Stock options exercised, net of shares surrendered for cashless exercises and tax withholdings	81	$ 81
Stock issued under employee stock purchase plan (in shares)		936
Stock issued under employee stock purchase plan	30	$ 30
Stock issued under employee stock ownership plan (in shares)		13,000
Stock issued under employee stock ownership plan	412	$ 412
Restricted stock surrendered for tax withholdings upon vesting (in shares)		(333)
Restricted stock surrendered for tax withholdings upon vesting	(11)	$ (11)
Restricted stock forfeited / cancelled (in shares)		(12,618)
Stock-based compensation - stock options	29	$ 29
Stock-based compensation - restricted stock	119	$ 119
Cash dividends paid on common stock	(3,840)		(3,840)
Ending balance (in shares) at Jun. 30, 2022		16,009,600
Ending balance at Jun. 30, 2022	$ 409,573	$ 213,864	253,737	(58,028)
Beginning balance (in shares) at Dec. 31, 2022	16,029,138	16,029,138
Beginning balance at Dec. 31, 2022	$ 412,092	$ 215,057	270,781	(73,746)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,440
Other comprehensive (loss) income, net of tax	11,746
Ending balance (in shares) at Mar. 31, 2023		16,107,210
Ending balance at Mar. 31, 2023	$ 430,174	$ 215,965	276,209	(62,000)
Beginning balance (in shares) at Dec. 31, 2022	16,029,138	16,029,138
Beginning balance at Dec. 31, 2022	$ 412,092	$ 215,057	270,781	(73,746)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,991		13,991
Other comprehensive (loss) income, net of tax	4,366			4,366
Stock options exercised, net of shares surrendered for cashless exercises and tax withholdings (in shares)		11,530
Stock options exercised, net of shares surrendered for cashless exercises and tax withholdings	230	$ 230
Stock issued under employee stock purchase plan (in shares)		1,156
Stock issued under employee stock purchase plan	21	$ 21
Stock issued under employee stock ownership plan (in shares)		34,000
Stock issued under employee stock ownership plan	847	$ 847
Restricted stock granted (in shares)		49,428
Restricted stock surrendered for tax withholdings upon vesting (in shares)		(2,498)
Restricted stock surrendered for tax withholdings upon vesting	(70)	$ (70)
Restricted stock forfeited / cancelled (in shares)		(20,174)
Stock-based compensation - stock options	137	$ 137
Stock-based compensation - restricted stock	217	$ 217
Cash dividends paid on common stock	(8,040)		(8,040)
Stock issued in payment of director fees (in shares)		4,612
Stock issued in payment of director fees	$ 150	$ 150
Stock repurchased, including commissions (in shares)		0
Ending balance (in shares) at Jun. 30, 2023	16,107,192	16,107,192
Ending balance at Jun. 30, 2023	$ 423,941	$ 216,589	276,732	(69,380)
Beginning balance (in shares) at Mar. 31, 2023		16,107,210
Beginning balance at Mar. 31, 2023	430,174	$ 215,965	276,209	(62,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,551		4,551
Other comprehensive (loss) income, net of tax	(7,380)			(7,380)
Stock issued under employee stock purchase plan (in shares)		741
Stock issued under employee stock purchase plan	12	$ 12
Stock issued under employee stock ownership plan (in shares)		19,700
Stock issued under employee stock ownership plan	424	$ 424
Restricted stock surrendered for tax withholdings upon vesting (in shares)		(285)
Restricted stock surrendered for tax withholdings upon vesting	(4)	$ (4)
Restricted stock forfeited / cancelled (in shares)		(20,174)
Stock-based compensation - stock options	21	$ 21
Stock-based compensation - restricted stock	171	$ 171
Cash dividends paid on common stock	$ (4,028)		(4,028)
Ending balance (in shares) at Jun. 30, 2023	16,107,192	16,107,192
Ending balance at Jun. 30, 2023	$ 423,941	$ 216,589	$ 276,732	$ (69,380)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Stockholders' Equity [Abstract]
Cash dividends paid on common stock (in dollars per share)	$ 0.25	$ 0.24	$ 0.50	$ 0.48

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022
Cash Flows from Operating Activities:
Net income		$ 13,991	$ 21,531
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for (reversal of) credit losses on loans		850	(485)
Reversal of credit losses on unfunded loan commitments		(342)	(318)
Noncash contribution expense to employee stock ownership plan		847	829
Noncash director compensation expense		150	193
Stock-based compensation expense		354	385
Amortization of core deposit intangible		685	754
Amortization of investment security premiums, net of accretion of discounts		3,781	4,963
(Accretion of discounts) amortization of premiums on acquired loans, net		(415)	281
Net change in deferred loan origination costs/fees		(588)	(2,322)
Write-down of other real estate owned		40	0
Depreciation and amortization		1,282	845
Earnings on bank-owned life insurance policies		(1,067)	(711)
Net changes in interest receivable and other assets		(1,354)	(443)
Net changes in interest payable and other liabilities		3,284	(5,894)
Total adjustments		7,507	(1,923)
Net cash provided by operating activities		21,498	19,608
Cash Flows from Investing Activities:
Purchase of held-to-maturity securities		0	(208,784)
Purchase of available-for-sale securities		0	(243,459)
Proceeds from paydowns/maturities of held-to-maturity securities		25,377	16,827
Proceeds from paydowns/maturities of available-for-sale securities		33,595	76,276
(Increase) decrease in loans receivable, net		(9,271)	93,875
Proceeds from bank-owned life insurance policies		766	350
Purchase of premises and equipment		(1,823)	(354)
Cash paid for low income housing tax credit investment		(39)	(30)
Net cash provided by (used in) investing activities		48,605	(265,299)
Cash Flows from Financing Activities:
Net (decrease) increase in deposits		(248,136)	22,120
Proceeds from short-term Federal Home Loan Bank borrowings, net		180,200	0
Repayment of finance lease obligations		(75)	(63)
Proceeds from stock options exercised		230	820
Restricted stock surrendered for tax withholdings upon vesting		(70)	(40)
Cash dividends paid on common stock		(8,040)	(7,662)
Stock repurchased, including commissions		0	(1,250)
Proceeds from stock issued under employee and director stock purchase plans		21	30
Net cash (used in) provided by financing activities		(75,870)	13,955
Net decrease in cash, cash equivalents and restricted cash		(5,767)	(231,736)
Cash, cash equivalents and restricted cash at beginning of period		45,424	347,641
Cash, cash equivalents and restricted cash at end of period		39,657	115,905
Supplemental disclosure of cash flow information:
Cash paid in interest		14,151	1,175
Cash paid in income taxes		0	8,450
Supplemental disclosure of noncash investing and financing activities:
Change in net unrealized gains or losses on available-for-sale securities		5,285	(65,278)
Securities transferred from available-for-sale to held-to-maturity, at fair value		0	357,482
Amortization of net unrealized loss on available-for-sale securities transferred to held-to-maturity		914	616
Purchase of investment securities not yet settled		0	40,278
Stock issued to employee stock ownership plan		847	829
Restricted cash	[1]	$ 0	$ 930
[1]Restricted cash includes reserve requirements held with the Federal Reserve Bank of San Francisco and other cash pledged. In response to the COVID-19 pandemic, the Federal Reserve reduced the reserve requirement ratios to zero percent effective March 26, 2020.

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements include the accounts of Bancorp, a bank holding company, and its wholly-owned bank subsidiary, Bank of Marin, a California state-chartered commercial bank. References to “we,” “our,” “us” mean Bancorp and the Bank that are consolidated for financial reporting purposes. The accompanying unaudited consolidated interim financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and note disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been condensed or omitted pursuant to those rules and regulations. Although we believe that the disclosures are adequate and the information presented is not misleading, we suggest that these interim financial statements be read in conjunction with the annual financial statements and the notes thereto included in our 2022 Annual Report on Form 10-K. In the opinion of management, the unaudited consolidated financial statements reflect all adjustments, which are necessary for a fair presentation of the consolidated financial position, the results of operations, changes in comprehensive income (loss), changes in stockholders’ equity, and cash flows for the periods presented. All material intercompany transactions have been eliminated. The results of these interim periods may not be indicative of the results for the full year or for any other period. The following table shows: 1) weighted average basic shares, 2) potentially dilutive weighted average common shares related to stock options and unvested restricted stock awards, and 3) weighted average diluted shares. Basic earnings per share (“EPS”) are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares. The number of potentially dilutive common shares included in the quarterly diluted EPS is computed using the average market prices during the three months included in the reporting period under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. In computing diluted EPS, we exclude anti-dilutive shares such as options whose exercise prices exceed the current common stock price, as they would not reduce EPS under the treasury method. We have two forms of outstanding common stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Under the two-class method, the difference in EPS is nominal for these participating securities. Three months ended Six months ended (in thousands, except per share data) June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Weighted average basic common shares outstanding 16,009 15,921 15,990 15,898 Potentially dilutive common shares related to: Stock options — 24 7 38 Unvested restricted stock awards 7 10 11 14 Weighted average diluted common shares outstanding 16,016 15,955 16,008 15,950 Net income $ 4,551 $ 11,066 $ 13,991 $ 21,531 Basic EPS $ 0.28 $ 0.70 $ 0.88 $ 1.35 Diluted EPS $ 0.28 $ 0.69 $ 0.87 $ 1.35 Weighted average anti-dilutive common shares not included in the calculation of diluted EPS 389 230 358 167

Recently Adopted and Issued Acc

Recently Adopted and Issued Accounting Standards	6 Months Ended
	Jun. 30, 2023
Accounting Policies [Abstract]
Recently Adopted and Issued Accounting Standards	Recently Adopted and Issued Accounting Standards Accounting Standards Adopted in 2023 In March 2022, the FASB issued ASU No. 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures . The amendment eliminated the recognition measurement guidance for troubled debt restructured ("TDR") loans and instead enhanced disclosure requirements for certain loan modifications when a borrower is experiencing financial difficulty. In addition, the amendment required that an entity include in its vintage disclosures the current period gross loan charge-offs by year of origination. We early adopted the current period charge-off disclosures in the first quarter of 2022. We adopted the loan modification provisions as of January 1, 2023 using a modified retrospective method. The cumulative-effect adjustment to retained earnings was considered immaterial. Refer to Note 5, Loans and Allowance for Credit Losses on Loans, for additional information. In March 2022, the FASB issued ASU No. 2022-01, Derivatives and Hedging (Topic 815): Fair Value Hedging - Portfolio Layer Method . Among other things, the ASU renamed the "last-of-layer" method to the "portfolio layer" method and made fair value hedging more accessible for hedge accounting of interest rate risk for portfolios and financial assets. For example, the guidance permits an entity to apply the same portfolio hedging method to both prepayable and non-prepayable financial assets, thereby providing for consistency between accounting for similar hedges. We adopted the amendments on January 1, 2023, which had no effect on our existing hedge accounting, disclosures, financial condition or results of operations. Accounting Standards Not Yet Effective In March 2020, the FASB issued Accounting Standards Update ("ASU") No. 2020-04, Reference Rate Reform (Topic 848) . The amendments in this ASU are elective and provide optional guidance for a limited period of time to ease the potential burden of accounting for, or recognizing the effects of reference rate reform. The amendments in this ASU provide optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. Topic 848 was further amended in January 2021 with ASU No. 2021-01, which provided additional guidance on certain optional expedients and scope of derivative instruments, and in December 2022 with ASU 2022-06, which extended the sunset date of Topic 848 to December 31, 2024 given the UK Financial Conduct Authority ("FCA") March 2021 announcement that the intended cessation date of certain tenors of USD LIBOR would be June 30, 2023. An entity may elect the amendments in these updates at an interim period with adoption methods varying based on transaction type. As of June 30, 2023, we had four interest rate swap contracts with notional values totaling $11.5 million indexed to LIBOR, which transitioned to the Secured Overnight Financing Rate ("SOFR") effective July 1, 2023. The transition to SOFR did not have a material impact to either our financial condition or results of operations. In June 2022, the FASB issued ASU No. 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions . The amendment reduces diversity in practice by clarifying that a separate contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. In addition, this ASU provided amended examples to illustrate that a restriction that is a characteristic of the equity security, which market participants would take into account when pricing them, would be considered in measuring fair value. This ASU also introduces new disclosure requirements. The amendments are effective prospectively for years beginning after December 15, 2023. Early adoption is permitted for both interim and annual financial statements. As discussed in Note 4, Investment Securities, on July 13, 2023 we sold our remaining shares of Visa Inc. Class B restricted common stock. As a result of the sale, this update will not impact our financial condition, results of operations or disclosures. In March 2023, the FASB issued ASU No. 2023-01, Leases (Topic 842): Common Control Arrangements . For public companies, the amendment requires entities to amortize leasehold improvements associated with common control lease arrangements over the useful life of the improvements to the common control group, as opposed to the shorter of the remaining lease term and the useful life of the improvements for all other operating leases. The amendments are effective for years beginning after December 15, 2023, and may be adopted either prospectively or retrospectively. Early adoption is permitted for both interim and annual financial statements. We currently do not have common control lease arrangements, and therefore do not anticipate that the amendments will impact our financial condition and results of operations. In March 2023, the FASB issued ASU No. 2023-02, Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method . Under current GAAP, an entity can only elect to apply the proportional amortization method to investments in low-income housing tax credit ("LIHTC") structures. The proportional amortization method results in the cost of the investment being amortized in proportion to the income tax credits and other income tax benefits received, with the amortization of the investment and the income tax credits being presented net in the consolidated statements of income as a component of income tax expense (benefit). The amendments will allow entities to elect to account for all other equity investments made primarily for the purpose of receiving income tax credits to using the proportional amortization method, regardless of the tax credit program through which the investment earns income tax credits,

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	Fair Value of Assets and Liabilities Fair Value Hierarchy and Fair Value Measurement We group our assets and liabilities that are measured at fair value into three levels within the fair value hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are: Level 1: Valuations are based on unadjusted quoted prices in active markets for identical assets or liabilities. Level 2: Valuations are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuations for which all significant assumptions are observable or can be corroborated by observable market data. Level 3: Valuations are based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Values are determined using pricing models and discounted cash flow models and may include significant management judgment and estimation. Transfers between levels of the fair value hierarchy are recognized through our monthly and/or quarterly valuation process in the reporting period during which the event or circumstances that caused the transfer occurred. No such transfers occurred in the years presented. The following table summarizes our assets and liabilities that were required to be recorded at fair value on a recurring basis. (in thousands) Description of Financial Instruments Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs Significant Unobservable Inputs Measurement Categories: Changes in Fair Value Recorded In 1 June 30, 2023 Securities available-for-sale: Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies $ 449,823 $ — $ 449,823 $ — OCI SBA-backed securities $ 36,649 $ — $ 36,649 $ — OCI Debentures of government sponsored agencies $ 135,868 $ — $ 135,868 $ — OCI U.S. Treasury securities $ 10,334 $ 10,334 $ — $ — OCI Obligations of state and political subdivisions $ 102,916 $ — $ 102,916 $ — OCI Corporate bonds $ 34,043 $ — $ 34,043 $ — OCI Asset-backed securities $ 1,309 $ — $ 1,309 $ — OCI Derivative financial assets (interest rate contracts) $ 631 $ — $ 631 $ — NI December 31, 2022 Securities available-for-sale: Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies $ 475,505 $ — $ 475,505 $ — OCI SBA-backed securities $ 44,355 $ — $ 44,355 $ — OCI Debentures of government sponsored agencies $ 135,106 $ — $ 135,106 $ — OCI U.S. Treasury securities $ 10,269 $ 10,269 $ — $ — OCI Obligations of state and political subdivisions $ 102,123 $ — $ 102,123 $ — OCI Corporate bonds $ 33,276 $ — $ 33,276 $ — OCI Asset-backed securities $ 1,462 $ — $ 1,462 $ — OCI Derivative financial assets (interest rate contracts) $ 602 $ — $ 602 $ — NI 1 Other comprehensive income ("OCI") or net income ("NI"). Available-for-sale securities are recorded at fair value on a recurring basis. When available, quoted market prices (Level 1) are used to determine the fair value of available-for-sale securities. Level 1 securities include U.S. Treasury securities. If quoted market prices are not available, we obtain pricing information from a reputable third-party service provider, who may utilize valuation techniques that use current market-based or independently sourced parameters, such as bid/ask prices, dealer-quoted prices, interest rates, benchmark yield curves, prepayment speeds, probability of default, loss severity and credit spreads (Level 2). Level 2 securities include asset-backed securities, obligations of state and political subdivisions, U.S. agencies or government-sponsored agencies' debt securities, mortgage-backed securities, government agency-issued, and corporate bonds. As of June 30, 2023 and December 31, 2022, there were no Level 3 securities. Held-to-maturity securities may be subject to an allowance for credit losses as a result of our evaluation of expected losses due to credit quality factors. We did not record any credit loss expense on held-to-maturity securities during the six months ended June 30, 2023 or June 30, 2022. Fair value of held-to-maturity securities is determined using the same techniques discussed above for available-for-sale securities. On a recurring basis, derivative financial instruments are recorded at fair value, which is based on the income approach using observable Level 2 market inputs, reflecting market expectations of future interest rates as of the measurement date. Standard valuation techniques are used to calculate the present value of the future expected cash flows assuming an orderly transaction. Valuation adjustments may be made to reflect both our own credit risk and the counterparties’ credit risk in determining the fair value of the derivatives. These unobservable inputs are not considered significant inputs to the fair value measurement overall. Level 2 inputs for the valuations are limited to observable market prices for London Interbank Offered Rate ("LIBOR") and Overnight Index Swap ("OIS") rates (for the very short term), quoted prices for LIBOR futures contracts, observable market prices for LIBOR and OIS swap rates, and one-month and three-month LIBOR basis spreads at commonly quoted intervals. Mid-market pricing of the inputs is used as a practical expedient in the fair value measurements. We project spot rates at reset days specified by each swap contract to determine future cash flows, then discount to present value using OIS curves as of the measurement date. When the value of any collateral placed with counterparties is less than the interest rate derivative liability, a credit valuation adjustment ("CVA") is applied to reflect the credit risk we pose to counterparties. We have used the spread between the Standard & Poor's BBB rated U.S. Bank Composite rate and LIBOR for the closest maturity term corresponding to the duration of the swaps to derive the CVA. A similar credit risk adjustment, correlated to the credit standing of the counterparty, is made when collateral posted by the counterparty does not fully cover their liability to us. For further discussion on our methodology in valuing our derivative financial instruments, refer to Note 9, Derivative Financial Instruments and Hedging Activities. Certain financial assets may be measured at fair value on a non-recurring basis. These assets are subject to fair value adjustments that result from the application of the lower of cost or fair value accounting or write-downs of individual assets, such as individually analyzed loans that are collateral dependent and other real estate owned ("OREO"). OREO represents collateral acquired through foreclosure and is initially recorded at fair value as established by a current appraisal of the collateral. Subsequent to foreclosure, OREO is carried at the lower of cost or fair value, less estimated costs to sell. OREO values are reviewed on an ongoing basis and any subsequent decline in fair value is recorded as a foreclosed asset expense in the current period. The value of OREO is classified as Level 3. Our current OREO resulted from the American River Bankshares ("AMRB") merger in 2021. The following table presents the carrying value of assets measured at fair value on a non-recurring basis and that were held in the consolidated statements of condition at each respective period end, by level within the fair value hierarchy as of June 30, 2023 and December 31, 2022. (in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2023 Other real estate owned $ 415 $ — $ — $ 415 December 31, 2022 Other real estate owned $ 455 $ — $ — $ 455 On July 12, 2023, the Bank completed the sale of its only other real estate owned property and realized a negligible gain after sales costs. Disclosures about Fair Value of Financial Instruments The table below is a summary of fair value estimates for financial instruments as of June 30, 2023 and December 31, 2022, excluding financial instruments recorded at fair value on a recurring basis (summarized in the first table in this note). The carrying amounts in the following table are recorded in the consolidated statements of condition under the indicated captions. Further, we have not disclosed the fair value of financial instruments specifically excluded from disclosure requirements such as bank-owned life insurance policies ("BOLI"), lease obligations and non-maturity deposit liabilities. Additionally, we held shares of Federal Home Loan Bank ("FHLB") of San Francisco stock at cost and Visa Inc. Class B common stock with no carrying value, as there was no impairment or changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer as of June 30, 2023 or December 31, 2022. The values are discussed in Note 4, Investment Securities. June 30, 2023 December 31, 2022 (in thousands) Carrying Amounts Fair Value Fair Value Hierarchy Carrying Amounts Fair Value Fair Value Hierarchy Financial assets (recorded at amortized cost): Cash and cash equivalents $ 39,657 $ 39,657 Level 1 $ 45,424 $ 45,424 Level 1 Investment securities held-to-maturity 946,808 826,067 Level 2 972,207 845,239 Level 2 Loans, net 2,078,964 1,985,481 Level 3 2,069,563 1,993,866 Level 3 Interest receivable 12,810 12,810 Level 2 13,069 13,069 Level 2 Financial liabilities (recorded at amortized cost): Time deposits 203,463 204,679 Level 2 119,030 118,333 Level 2 Federal Home Loan Bank short-term borrowings 292,200 292,200 Level 2 112,000 112,000 Level 2 Interest payable 868 868 Level 2 75 75 Level 2 Fair value of loans is based on exit price techniques and obtained from an independent third-party that uses its proprietary valuation model and methodology and may differ from actual price from a prospective buyer. The discounted cash flow valuation approach reflects key inputs and assumptions that are unobservable, such as loan probability of default, loss given default, prepayment speed, and market discount rates. Fair value of fixed-rate time deposits is estimated by discounting future contractual cash flows using discount rates that reflect the current observable market rates offered for time deposits of similar remaining maturities. Due to the short-term nature of the FHLB borrowings, the carrying value approximates fair value. The value of off-balance-sheet financial instruments is estimated based on the fee income associated with the commitments, which in the absence of credit exposure, is considered to approximate their settlement value. The fair value of commitment fees was not material as of June 30, 2023 or December 31, 2022.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities Our investment securities portfolio consists of U.S. Treasury securities, obligations of state and political subdivisions, U.S. federal government agencies such as Government National Mortgage Association ("GNMA") and Small Business Administration ("SBA"), U.S. government-sponsored enterprises ("GSEs"), such as Federal National Mortgage Association ("FNMA"), Federal Home Loan Mortgage Corporation ("FHLMC"), Federal Farm Credit Banks Funding Corporation and FHLB, U.S. Corporations and one asset-backed security collateralized by student loan pools. We also invest in residential and commercial mortgage-backed securities (“MBS”/"CMBS") and collateralized mortgage obligations (“CMOs”) issued or guaranteed by the GSEs, as reflected in the following table. A summary of the amortized cost, fair value and allowance for credit losses related to securities held-to-maturity as of June 30, 2023 and December 31, 2022 is presented below. Held-to-maturity: Amortized Cost 1 Allowance for Credit Losses Net Carrying Amount Gross Unrealized Fair Value (in thousands) Gains (Losses) June 30, 2023 Securities of U.S. government-sponsored enterprises: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 316,968 $ — $ 316,968 $ — $ (48,904) $ 268,064 CMOs issued by FHLMC 231,217 — 231,217 177 (27,759) 203,635 CMOs issued by FNMA 106,894 — 106,894 113 (6,436) 100,571 CMOs issued by GNMA 51,511 — 51,511 216 (3,271) 48,456 SBA-backed securities 1,977 — 1,977 — (130) 1,847 Debentures of government-sponsored agencies 145,973 — 145,973 — (24,087) 121,886 Obligations of state and political subdivisions 62,268 — 62,268 6 (9,029) 53,245 Corporate bonds 30,000 — 30,000 — (1,637) 28,363 Total held-to-maturity $ 946,808 $ — $ 946,808 $ 512 $ (121,253) $ 826,067 December 31, 2022 Securities of U.S. government-sponsored enterprises: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 331,281 $ — $ 331,281 $ — $ (50,147) $ 281,134 CMOs issued by FHLMC 235,971 — 235,971 59 (29,503) 206,527 CMOs issued by FNMA 111,904 — 111,904 — (5,419) 106,485 CMOs issued by GNMA 52,356 — 52,356 11 (3,076) 49,291 SBA-backed securities 2,372 — 2,372 — (133) 2,239 Debentures of government-sponsored agencies 145,823 — 145,823 — (26,467) 119,356 Obligations of state and political subdivisions 62,500 — 62,500 — (10,741) 51,759 Corporate bonds 30,000 — 30,000 — (1,552) 28,448 Total held-to-maturity $ 972,207 $ — $ 972,207 $ 70 $ (127,038) $ 845,239 1 Amortized cost and fair values exclude accrued interest receivable of $3.6 million and $3.7 million at June 30, 2023 and December 31, 2022, respectively, which is included in interest receivable and other assets in the consolidated statements of condition. Management measures expected credit losses on held-to-maturity securities collectively by major security type with each type sharing similar risk characteristics, and considers historical credit loss information that is adjusted for current conditions and reasonable and supportable forecasts. With regard to MBSs and CMOs issued or guaranteed by the GSEs, and SBA-backed securities, we expect to receive all the contractual principal and interest on these securities as such securities are backed by the full faith and credit of and/or guaranteed by the U.S. government. Accordingly, no allowance for credit losses has been recorded for these securities. With regard to securities issued by states and political subdivisions and corporate bonds, management considers: (i) issuer and/or guarantor credit ratings, (ii) historical probability of default and loss given default rates for given bond ratings and remaining maturity, (iii) whether issuers continue to make timely principal and interest payments under the contractual terms of the securities, (iv) internal credit review of the financial information, and (v) whether or not such securities have credit enhancements such as guarantees, contain a defeasance clause, or are pre-refunded by the issuers. Based on our comprehensive analysis, no cr edit losses are expected. The following table summarizes the amortized cost of our portfolio of held-to-maturity securities issued by states and political subdivisions and corporate bonds by Moody's and/or Standard & Poor's bond ratings as of June 30, 2023. Obligations of state and political subdivisions Corporate bonds (in thousands) June 30, 2023 December 31, 2022 June 30, 2023 December 31, 2022 AAA / Aaa $ 42,783 $ 42,986 $ — $ — AA / Aa 19,485 19,514 — — A2 / A — — 30,000 30,000 Total $ 62,268 $ 62,500 $ 30,000 $ 30,000 A summary of the amortized cost, fair value and allowance for credit losses related to securities available-for-sale as of June 30, 2023 and December 31, 2022 is presented below. Available-for-sale: Amortized Cost 1 Gross Unrealized Allowance for Credit Losses Fair Value (in thousands) Gains (Losses) June 30, 2023 Securities of U.S. government-sponsored enterprises: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 102,420 $ 2 $ (11,758) $ — $ 90,664 CMOs issued by FHLMC 333,374 — (32,162) — 301,212 CMOs issued by FNMA 32,916 — (3,816) — 29,100 CMOs issued by GNMA 32,193 31 (3,377) — 28,847 SBA-backed securities 39,824 — (3,175) — 36,649 Debentures of government- sponsored agencies 149,129 — (13,261) — 135,868 U.S. Treasury securities 11,914 — (1,580) — 10,334 Obligations of state and political subdivisions 116,040 36 (13,160) — 102,916 Corporate bonds 36,991 — (2,948) — 34,043 Asset-backed securities 1,365 — (56) — 1,309 Total available-for-sale $ 856,166 $ 69 $ (85,293) $ — $ 770,942 December 31, 2022 Securities of U.S. government-sponsored enterprises: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 109,736 $ 3 $ (12,133) $ — $ 97,606 CMOs issued by FHLMC 347,437 — (33,682) — 313,755 CMOs issued by FNMA 36,172 — (3,852) — 32,320 CMOs issued by GNMA 35,120 — (3,296) — 31,824 SBA-backed securities 47,724 2 (3,371) — 44,355 Debentures of government- sponsored agencies 149,114 — (14,008) — 135,106 U.S. Treasury securities 11,904 — (1,635) 10,269 Obligations of state and political subdivisions 116,855 29 (14,761) — 102,123 Corporate bonds 36,990 — (3,714) — 33,276 Asset-backed securities 1,553 — (91) — 1,462 Total available-for-sale $ 892,605 $ 34 $ (90,543) $ — $ 802,096 1 Amortized cost and fair value exclude accrued interest receivable of $3.1 million and $3.2 million at June 30, 2023 and December 31, 2022, respectively, which is included in interest receivable and other assets in the consolidated statements of condition. As part of our ongoing review of our investment securities portfolio, we reassessed the classification of certain securities issued by government sponsored agencies. In March 2022, we transferred $357.5 million of these securities from available-for-sale to held-to-maturity at fair value. We intend and have the ability to hold these securities to maturity. The net unrealized pre-tax loss of $14.8 million that remained and the related accumulated other comprehensive loss are accreted to interest income over the remaining lives of the securities. Because these entries offset each other, there was no impact to net income. The amortized cost a nd fair value of investment debt securities by contractual maturity at June 30, 2023 and December 31, 2022 are shown below. Expected maturities may differ from contractual maturities if the issuers of the securities have the right to call or prepay obligations with or without call or prepayment penalties. June 30, 2023 December 31, 2022 Held-to-Maturity Available-for-Sale Held-to-Maturity Available-for-Sale (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Within one year $ — $ — $ 26,665 $ 25,344 $ 450 $ 446 $ 1,254 $ 1,239 After one but within five years 89,625 85,060 354,735 324,368 87,418 83,663 335,813 307,843 After five years through ten years 266,785 227,818 130,738 117,530 262,072 222,280 185,997 166,273 After ten years 590,398 513,189 344,028 303,700 622,267 538,850 369,541 326,741 Total $ 946,808 $ 826,067 $ 856,166 $ 770,942 $ 972,207 $ 845,239 $ 892,605 $ 802,096 There were no sales of investment securities in either the first half of 2023 or 2022. However, in July 2023, the Bank sold $82.7 million of available-for-sale securities for a net loss of $2.8 million. In addition, on July 13, 2023, the Bank sold its remaining investment in Visa Inc. Class B restricted common stock, which had a zero carrying value, for a $2.8 million gain. Three months ended The carrying values of pledged investment securities are shown in the following table: (in thousands) June 30, 2023 December 31, 2022 Pledged to the State of California: Secure public deposits in compliance with the Local Agency Security Program $ 199,327 $ 235,587 Collateral for trust deposits 672 677 Collateral for Wealth Management and Trust Services checking account 565 569 Total investment securities pledged to the State of California 200,564 236,833 Bankruptcy trustee deposits pledged with Federal Reserve Bank 1,594 1,737 Pledged to FHLB Securities-Backed Credit Program 391,668 — Pledged to the Federal Reserve Bank Term Funding Program ("BTFP") 274,215 — Total pledged investment securities $ 868,041 $ 238,570 There were 396 and 407 securities in unrealized loss positions at June 30, 2023 and December 31, 2022, respectively. Those securities are summarized and classified according to the duration of the loss period in the tables below: June 30, 2023 < 12 continuous months ≥ 12 continuous months Total securities (in thousands) Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss Held-to-maturity: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 4,178 $ (132) $ 263,886 $ (48,772) $ 268,064 $ (48,904) CMOs issued by FHLMC 31,915 (1,171) 162,369 (26,588) 194,284 (27,759) CMOs issued by FNMA 43,167 (2,064) 39,161 (4,372) 82,328 (6,436) CMOs issued by GNMA 27,024 (1,895) 9,902 (1,376) 36,926 (3,271) SBA-backed securities — — 1,847 (130) 1,847 (130) Debentures of government-sponsored agencies 29,245 (749) 92,642 (23,338) 121,887 (24,087) Obligations of state and political subdivisions — — 50,154 (9,029) 50,154 (9,029) Corporate bonds — — 28,363 (1,637) 28,363 (1,637) Total held-to-maturity 135,529 (6,011) 648,324 (115,242) 783,853 (121,253) Available-for-sale: MBS pass-through securities issued by FHLMC, FNMA and GNMA 4,422 (177) 85,498 (11,581) 89,920 (11,758) CMOs issued by FHLMC 12 — 301,200 (32,162) 301,212 (32,162) CMOs issued by FNMA 37 (1) 29,063 (3,815) 29,100 (3,816) CMOs issued by GNMA — — 25,070 (3,377) 25,070 (3,377) SBA-backed securities 29 — 36,309 (3,175) 36,338 (3,175) Debentures of government- sponsored agencies — — 135,868 (13,261) 135,868 (13,261) U.S. Treasury securities — — 10,334 (1,580) 10,334 (1,580) Obligations of state and political subdivisions 4,799 (54) 90,869 (13,106) 95,668 (13,160) Corporate bonds — — 34,043 (2,948) 34,043 (2,948) Asset-backed securities — — 1,309 (56) 1,309 (56) Total available-for-sale 9,299 (232) 749,563 (85,061) 758,862 (85,293) Total securities at loss position $ 144,828 $ (6,243) $ 1,397,887 $ (200,303) $ 1,542,715 $ (206,546) December 31, 2022 < 12 continuous months ≥ 12 continuous months Total securities (in thousands) Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss Held-to-maturity: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 62,627 $ (5,960) $ 218,507 $ (44,187) $ 281,134 $ (50,147) CMOs issued by FHLMC 78,144 (5,874) 113,796 (23,629) 191,940 (29,503) CMOs issued by FNMA 106,485 (5,419) — — 106,485 (5,419) CMOs issued by GNMA 27,570 (1,676) 10,331 (1,400) 37,901 (3,076) SBA-backed securities 2,239 (133) — — 2,239 (133) Debentures of government- sponsored agencies 38,645 (2,530) 80,711 (23,937) 119,356 (26,467) Obligations of state and political subdivisions 15,155 (589) 36,603 (10,152) 51,758 (10,741) Corporate Bonds 28,448 (1,552) — — 28,448 (1,552) Total held-to-maturity 359,313 (23,733) 459,948 (103,305) 819,261 (127,038) Available-for-sale: MBS pass-through securities issued by FHLMC, FNMA and GNMA 44,630 (4,501) 52,235 (7,632) 96,865 (12,133) CMOs issued by FHLMC 169,760 (15,144) 143,995 (18,538) 313,755 (33,682) CMOs issued by FNMA 4,790 (235) 27,529 (3,617) 32,319 (3,852) CMOs issued by GNMA 8,214 (374) 23,612 (2,922) 31,826 (3,296) SBA-backed securities 37,845 (3,228) 6,133 (143) 43,978 (3,371) Debentures of government- sponsored agencies 19,054 (946) 116,052 (13,062) 135,106 (14,008) U.S. Treasury securities — — 10,269 (1,635) 10,269 (1,635) Obligations of state and political subdivisions 70,402 (9,459) 28,711 (5,302) 99,113 (14,761) Corporate Bonds — — 33,276 (3,714) 33,276 (3,714) Asset-backed securities — — 1,462 (91) 1,462 (91) Total available-for-sale 354,695 (33,887) 443,274 (56,656) 797,969 (90,543) Total securities at loss position $ 714,008 $ (57,620) $ 903,222 $ (159,961) $ 1,617,230 $ (217,581) As of June 30, 2023, the investment portfolio included 373 investment securities that had been in a continuous loss position for twelve months or more and 23 investment securities that had been in a loss position for less than twelve months. Securities issued by government-sponsored enterprises, such as FNMA and FHLMC, usually have implicit credit support by the U.S. federal government. However, since 2008, FNMA and FHLMC have been under government conservatorship and, therefore, contractual cash flows for these investments carry explicit guarantees by the U.S. federal government. Securities issued by the SBA and GNMA have explicit credit guarantees by the U.S. federal government, which protects us from credit losses on the contractual cash flows of the securities. Our investment in obligations of state and political subdivisions bonds are deemed credit worthy after our comprehensive analysis of the issuers' latest financial information, credit ratings by major credit agencies, and/or credit enhancements. No allowances for credit losses have been recognized on available-for-sale securities in an unrealized loss position, as management does not believe any of the securities are impaired due to credit risk factors at either June 30, 2023 or December 31, 2022. On July 7, 2023, the Bank entered into various interest rate swap agreements with notional values totaling $101.8 million to hedge balance sheet interest rate sensitivity and protect selected securities in its available-for-sale portfolio against changes in fair value related to changes in the benchmark interest rate. For additional details, refer to Note 9, Derivative Financial Instruments and Hedging Activities. Non-Marketable Securities Included in Other Assets FHLB Capital Stock As a member of the FHLB, we are required to maintain a minimum investment in FHLB capital stock determined by the Board of Directors of the FHLB. The minimum investment requirements can increase in the event we increase our total asset size or borrowings with the FHLB. Shares cannot be purchased or sold except between the FHLB and its members at the $100 per share par value. We held $16.7 million of FHLB stock included in other assets on the consolidated statements of condition at both June 30, 2023 and December 31, 2022. The carrying amounts of these investments are reasonable estimates of fair value because the securities are restricted to member banks and they do not have a readily determinable market value. Based on our analysis of FHLB's financial condition and certain qualitative factors, we determined that the FHLB stock was not impaired at June 30, 2023 and December 31, 2022. On July 27, 2023, FHLB announced a cash dividend for the second quarter of 2023 at an annualized dividend rate of 7.75% to be distributed on August 10, 2023. Cash dividends paid on FHLB capital stock are recorded as non-interest income. VISA Inc. Class B Common Stock As a member bank of Visa U.S.A., we held 10,439 shares of Visa Inc. Class B common stock at June 30, 2023 and December 31, 2022. These shares had a carrying value of zero and were restricted from resale to non-member banks of Visa U.S.A. until their conversion into Class A (voting) shares upon the termination of Visa Inc.'s Covered Litigation escrow account. Because of the restriction and the uncertainty on the conversion rate to Class A shares, these shares lacked a readily determinable fair value. On July 13, 2023, the Bank sold the entirety of its remaining investment in Visa Inc. Class B restricted common stock for a $2.8 million gain. For further information on the Covered Litigation, refer to Note 8, Commitments and Contingencies. Low Income Housing Tax Credits We invest in low-income housing tax credit funds as a limited partner, which totaled $2.3 million and $2.5 million recorded in other assets as of June 30, 2023 and December 31, 2022, respectively. In the first six months of 2023, we recognized $300 thousand of low-income housing tax credits and other tax benefits, offset by $252 thousand of amortization expense of low-income housing tax credit investment, as a component of income tax expense. As of June 30, 2023, our unfunded commitments for these low-income housing tax credit funds totaled $346 thousand. We did not recognize any impairment losses on these low-income housing tax credit investments during the first six months of 2023 or 2022, as the value of the future tax benefits exceeds the carrying value of the investments.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses on Loans	6 Months Ended
	Jun. 30, 2023
Receivables [Abstract]
Loans and Allowance for Credit Losses on Loans	Loans and Allowance for Credit Losses on Loans The following table presents the amortized cost of loans by class as of June 30, 2023 and December 31, 2022. (in thousands) June 30, 2023 December 31, 2022 Commercial and industrial $ 183,157 $ 173,547 Real estate: Commercial owner-occupied 344,951 354,877 Commercial non-owner occupied 1,196,158 1,191,889 Construction 108,986 114,373 Home equity 85,587 88,748 Other residential 118,646 112,123 Installment and other consumer loans 65,311 56,989 Total loans, at amortized cost 1 2,102,796 2,092,546 Allowance for credit losses on loans (23,832) (22,983) Total loans, net of allowance for credit losses on loans $ 2,078,964 $ 2,069,563 1 Amortized cost includes net deferred loan origination costs of $2.4 million and $1.8 million at June 30, 2023 and December 31, 2022, respectively. Amounts are also net of unrecognized purchase discounts of $2.2 million and $2.6 million at June 30, 2023 and December 31, 2022, respectively. Amortized cost excludes accrued interest, which totaled $6.0 million and $6.1 million at June 30, 2023 and December 31, 2022, respectively, and is included in interest receivable and other assets in the consolidated statements of condition. Lending Risks Commercial and Industrial Loans - Commercial loans are generally made to established small and mid-sized businesses to provide financing for their growth and working capital needs, equipment purchases and acquisitions. Management examines historical, current, and projected cash flows to determine the ability of the borrower to repay obligations as agreed. Commercial loans are made based primarily on the identified cash flows of the borrower and secondarily on the underlying collateral and guarantor support. The cash flows of borrowers, however, may not occur as expected, and the collateral securing these loans may fluctuate in value. Most commercial and industrial loans are secured by the assets being financed, such as accounts receivable and inventory, and typically include personal guarantees. We target stable businesses with guarantors who provide additional sources of repayment and have proven to be resilient in periods of economic stress. A weakened economy, and resultant decreased consumer and/or business spending, may have an effect on the credit quality of commercial loans. Commercial Real Estate Loans - Commercial real estate loans, which include income producing investment properties and owner-occupied real estate used for business purposes, are subject to underwriting standards and processes similar to commercial loans discussed above. We underwrite these loans to be repaid from cash flow from either the business or investment property and supported by real property collateral. Underwriting standards for commercial real estate loans include, but are not limited to, debt coverage and loan-to-value ratios. Furthermore, a large majority of our loans are guaranteed by the owners of the properties. Conditions in the real estate markets or downturn in the general economy may adversely affect our commercial real estate loans. In the event of a vacancy, we expect guarantors to carry the loans until they find a replacement tenant. The owner's substantial equity investment provides a strong economic incentive to continue to support the commercial real estate projects. As such, we have generally experienced a relatively low level of loss and delinquencies in this portfolio. Construction Loans - Construction loans are generally made to developers and builders to finance construction, renovation and occasionally land acquisitions in anticipation of near-term development. Construction loans include interest reserves that are used for the payment of interest during the development and marketing periods and are capitalized as part of the loan balance. When a construction loan is placed on nonaccrual status before the depletion of the interest reserve, we apply the interest funded by the interest reserve against the loan's principal balance. These loans are underwritten after evaluation of the borrower's financial strength, reputation, prior track record, and independent appraisals. We monitor all construction projects to determine whether they are on schedule, completed as planned and in accordance with the approved construction budgets. Significant events can affect the construction industry, including: the inherent volatility of real estate markets and vulnerability to delays due to weather, change orders, inability to obtain construction permits, labor or material shortages, and price changes. Estimates of construction costs and value associated with the completed project may be inaccurate. Repayment of construction loans is largely dependent on the ultimate success of the project. Consumer Loans - Consumer loans primarily consist of home equity lines of credit, other residential loans, floating homes, and indirect luxury auto loans, along with a small number of installment loans. Our other residential loans include tenancy-in-common fractional interest loans ("TIC") located almost entirely in San Francisco County. We originate consumer loans utilizing credit score information, debt-to-income ratio and loan-to-value ratio analysis. Diversification among consumer loan types, coupled with relatively small loan amounts that are spread across many individual borrowers, mitigates risk. We do not originate sub-prime residential mortgage loans, nor is it our practice to underwrite loans commonly referred to as "Alt-A mortgages," the characteristics of which are reduced documentation, borrowers with low FICO scores or collateral with high loan-to-value ratios. Credit Quality Indicators We use a risk rating system to evaluate asset quality, and to identify and monitor credit risk in individual loans, and in the loan portfolio. Our definitions of “Special Mention” risk graded loans, or worse, are consistent with those used by the Federal Deposit Insurance Corporation ("FDIC"). Our internally assigned grades are as follows: Pass and Watch - Loans to borrowers of acceptable or better credit quality. Borrowers in this category demonstrate fundamentally sound financial positions, repayment capacity, credit history and management expertise. Loans in this category must have an identifiable and stable source of repayment and meet the Bank’s policy regarding debt-service-coverage ratios. These borrowers are capable of sustaining normal economic, market or operational setbacks without significant financial consequences. Negative external industry factors are generally not present. The loan may be secured, unsecured or supported by non-real estate collateral for which the value is more difficult to determine and/or marketability is more uncertain. This category also includes “Watch” loans, where the primary source of repayment has been delayed. “Watch” is intended to be a transitional grade, with either an upgrade or downgrade within a reasonable period. Special Mention - Potential weaknesses that deserve close attention. If left uncorrected, those potential weaknesses may result in deterioration of the payment prospects for the asset. Special Mention assets do not present sufficient risk to warrant adverse classification. Substandard - Inadequately protected by either the current sound worth and paying capacity of the obligor or the collateral pledged, if any. A Substandard asset has a well-defined weakness or weaknesses that jeopardize(s) the liquidation of the debt. Substandard assets are characterized by the distinct possibility that we will sustain some loss if such weaknesses or deficiencies are not corrected. Well-defined weaknesses include adverse trends or developments of the borrower’s financial condition, managerial weaknesses and/or significant collateral deficiencies. Doubtful - Critical weaknesses that make collection or liquidation in full improbable. There may be specific pending events that work to strengthen the asset; however, the amount or timing of the loss may not be determinable. Pending events generally occur within one year of the asset being classified as Doubtful. Examples include: merger, acquisition, or liquidation; capital injection; guarantee; perfecting liens on additional collateral; and refinancing. Such loans are placed on non-accrual status and usually are collateral-dependent. We regularly review our credits for accuracy of risk grades whenever we receive new information and at each quarterly and year-end reporting period. Borrowers are generally required to submit financial information at regular intervals. Typically, commercial borrowers with lines of credit are required to submit financial information with reporting intervals ranging from monthly to annually depending on credit size, risk and complexity. In addition, investor commercial real estate borrowers with loans exceeding a certain dollar threshold are usually required to submit rent rolls or property income statements annually. We monitor construction loans monthly. We review home equity and other consumer loans based on delinquency. We also review loans graded “Watch” or worse, regardless of loan type, no less than quarterly. The following tables present the loan portfolio by loan class, origination year and internal risk rating as of June 30, 2023 and December 31, 2022. The current year vintage table reflects gross charge-offs by loan class and year of origination. Generally, existing term loans that were re-underwritten are reflected in the table in the year of renewal. Lines of credit that have a conversion feature at the time of origination, such as construction to perm loans, are presented by year of origination. (in thousands) Term Loans - Amortized Cost by Origination Year Revolving Loans Amortized Cost June 30, 2023 2023 2022 2021 2020 2019 Prior Total Commercial and industrial: Pass and Watch $ 30,686 $ 11,481 $ 3,726 $ 5,173 $ 16,419 $ 25,287 $ 67,323 $ 160,095 Special Mention — — — — 2,718 664 8,656 12,038 Substandard — 274 — 1,030 — 3,641 6,079 11,024 Total commercial and industrial $ 30,686 $ 11,755 $ 3,726 $ 6,203 $ 19,137 $ 29,592 $ 82,058 $ 183,157 Gross current period charge-offs $ — $ — $ — $ — $ (3) $ — $ — $ (3) Commercial real estate, owner-occupied: Pass and Watch $ 1,045 $ 55,268 $ 50,712 $ 39,447 $ 44,398 $ 125,506 $ — $ 316,376 Special Mention — — 15,919 — 293 10,537 — 26,749 Substandard — — — — — 1,826 — 1,826 Total commercial real estate, owner-occupied $ 1,045 $ 55,268 $ 66,631 $ 39,447 $ 44,691 $ 137,869 $ — $ 344,951 Commercial real estate, non-owner occupied: Pass and Watch $ 21,865 $ 175,197 $ 208,613 $ 153,439 $ 145,528 $ 419,415 $ — $ 1,124,057 Special Mention — 2,815 3,320 11,918 15,903 13,797 — 47,753 Substandard — — 2,227 — — 22,121 — 24,348 Total commercial real estate, non-owner occupied $ 21,865 $ 178,012 $ 214,160 $ 165,357 $ 161,431 $ 455,333 $ — $ 1,196,158 (in thousands) Term Loans - Amortized Cost by Origination Year Revolving Loans Amortized Cost June 30, 2023 2023 2022 2021 2020 2019 Prior Total Construction: Pass and Watch $ 10,537 $ 45,971 $ 24,061 $ 28,417 $ — $ — $ — $ 108,986 Total construction $ 10,537 $ 45,971 $ 24,061 $ 28,417 $ — $ — $ — $ 108,986 Home equity: Pass and Watch $ — $ — $ — $ — $ — $ 717 $ 84,007 $ 84,724 Substandard — — — — — 441 422 863 Total home equity $ — $ — $ — $ — $ — $ 1,158 $ 84,429 $ 85,587 Other residential: Pass and Watch $ 12,521 $ 20,322 $ 13,818 $ 27,340 $ 21,605 $ 23,040 $ — $ 118,646 Total other residential $ 12,521 $ 20,322 $ 13,818 $ 27,340 $ 21,605 $ 23,040 $ — $ 118,646 Installment and other consumer: Pass and Watch $ 14,426 $ 16,790 $ 11,884 $ 5,182 $ 5,741 $ 10,264 $ 1,024 $ 65,311 Total installment and other consumer $ 14,426 $ 16,790 $ 11,884 $ 5,182 $ 5,741 $ 10,264 $ 1,024 $ 65,311 Gross current period charge-offs $ (6) $ (5) $ — $ (4) $ — $ (1) $ (4) $ (20) Total loans: Pass and Watch $ 91,080 $ 325,029 $ 312,814 $ 258,998 $ 233,691 $ 604,229 $ 152,354 $ 1,978,195 Total Special Mention $ — $ 2,815 $ 19,239 $ 11,918 $ 18,914 $ 24,998 $ 8,656 $ 86,540 Total Substandard $ — $ 274 $ 2,227 $ 1,030 $ — $ 28,029 $ 6,501 $ 38,061 Totals $ 91,080 $ 328,118 $ 334,280 $ 271,946 $ 252,605 $ 657,256 $ 167,511 $ 2,102,796 Total gross current period charge-offs $ (6) $ (5) $ — $ (4) $ (3) $ (1) $ (4) $ (23) (in thousands) Term Loans - Amortized Cost by Origination Year Revolving Loans Amortized Cost December 31, 2022 2022 2021 2020 2019 2018 Prior Total Commercial and industrial: Pass and Watch $ 15,349 $ 6,679 $ 7,603 $ 19,982 $ 5,362 $ 24,954 $ 84,655 $ 164,584 Special Mention 275 — — 2,272 3,836 — 402 6,785 Substandard — — 1,252 — — 625 301 2,178 Total commercial and industrial $ 15,624 $ 6,679 $ 8,855 $ 22,254 $ 9,198 $ 25,579 $ 85,358 $ 173,547 Commercial real estate, owner-occupied: Pass and Watch $ 54,188 $ 52,080 $ 40,369 $ 44,798 $ 29,856 $ 104,377 $ — $ 325,668 Special Mention — 16,199 — 304 5,255 4,493 — 26,251 Substandard — — — 1,160 — 1,699 — 2,859 Doubtful — — 99 — — — — 99 Total commercial real estate, owner-occupied $ 54,188 $ 68,279 $ 40,468 $ 46,262 $ 35,111 $ 110,569 $ — $ 354,877 Commercial real estate, non-owner occupied: Pass and Watch $ 177,822 $ 211,228 $ 155,278 $ 160,670 $ 129,166 $ 308,509 $ 57 $ 1,142,730 Special Mention — 1,172 12,097 3,934 678 9,290 — 27,171 Substandard — 2,264 — — — 19,724 — 21,988 Total commercial real estate, non-owner occupied $ 177,822 $ 214,664 $ 167,375 $ 164,604 $ 129,844 $ 337,523 $ 57 $ 1,191,889 Construction: Pass and Watch $ 49,262 $ 19,393 $ 28,861 $ 7,745 $ 9,112 $ — $ — $ 114,373 Total construction $ 49,262 $ 19,393 $ 28,861 $ 7,745 $ 9,112 $ — $ — $ 114,373 Home equity: Pass and Watch $ — $ — $ — $ — $ — $ 883 $ 86,971 $ 87,854 Substandard — — — — — 480 414 894 Total home equity $ — $ — $ — $ — $ — $ 1,363 $ 87,385 $ 88,748 Other residential: Pass and Watch $ 21,154 $ 14,547 $ 29,018 $ 21,890 $ 11,064 $ 14,450 $ — $ 112,123 Total other residential $ 21,154 $ 14,547 $ 29,018 $ 21,890 $ 11,064 $ 14,450 $ — $ 112,123 Installment and other consumer: Pass and Watch $ 20,054 $ 13,022 $ 5,727 $ 6,492 $ 4,181 $ 6,478 $ 944 $ 56,898 Substandard — — — — — 91 — 91 Total installment and other consumer $ 20,054 $ 13,022 $ 5,727 $ 6,492 $ 4,181 $ 6,569 $ 944 $ 56,989 Total loans: Pass and Watch $ 337,829 $ 316,949 $ 266,856 $ 261,577 $ 188,741 $ 459,651 $ 172,627 $ 2,004,230 Total Special Mention $ 275 $ 17,371 $ 12,097 $ 6,510 $ 9,769 $ 13,783 $ 402 $ 60,207 Total Substandard $ — $ 2,264 $ 1,252 $ 1,160 $ — $ 22,619 $ 715 $ 28,010 Total Doubtful $ — $ — $ 99 $ — $ — $ — $ — $ 99 Totals $ 338,104 $ 336,584 $ 280,304 $ 269,247 $ 198,510 $ 496,053 $ 173,744 $ 2,092,546 The following table shows the amortized cost of loans by class, payment aging and non-accrual status as of June 30, 2023 and December 31, 2022. Loan Aging Analysis by Class (in thousands) Commercial and industrial Commercial real estate, owner-occupied Commercial real estate, non-owner occupied Construction Home equity Other residential Installment and other consumer Total June 30, 2023 30-59 days past due $ — $ — $ 371 $ — $ 124 $ — $ 51 $ 546 60-89 days past due 436 — — — 91 — 1 528 90 days or more past due — 164 906 — 218 — — 1,288 Total past due 436 164 1,277 — 433 — 52 2,362 Current 182,721 344,787 1,194,881 108,986 85,154 118,646 65,259 2,100,434 Total loans 1 $ 183,157 $ 344,951 $ 1,196,158 $ 108,986 $ 85,587 $ 118,646 $ 65,311 $ 2,102,796 Non-accrual loans 2 $ — $ 457 $ 906 $ — $ 749 $ — $ — $ 2,112 Non-accrual loans with no allowance $ — $ 457 $ 906 $ — $ 749 $ — $ — $ 2,112 December 31, 2022 30-59 days past due $ 3 $ — $ — $ — $ 319 $ 93 $ 5 $ 420 60-89 days past due — — — — 244 — — 244 90 days or more past due 264 — — — 414 — — 678 Total past due 267 — — — 977 93 5 1,342 Current 173,280 354,877 1,191,889 114,373 87,771 112,030 56,984 2,091,204 Total loans 1 $ 173,547 $ 354,877 $ 1,191,889 $ 114,373 $ 88,748 $ 112,123 $ 56,989 $ 2,092,546 Non-accrual loans 2 $ — $ 1,563 $ — $ — $ 778 $ — $ 91 $ 2,432 Non-accrual loans with no allowance $ — $ 1,563 $ — $ — $ 778 $ — $ 91 $ 2,432 1 There were no non-performing loans past due more than ninety days and accruing interest as of June 30, 2023 and December 31, 2022. 2 None of the non-accrual loans as of June 30, 2023 or December 31, 2022 were earning interest on a cash basis. We recognized no interest income on non-accrual loans for the three and six months ended June 30, 2023 and 2022. We reversed interest income of $14 thousand and less than $8 thousand for loans on non-accrual status during the six months ended June 30, 2023 and June 30, 2022, respectively. Collateral Dependent Loans The following table presents the amortized cost basis of individually analyzed collateral-dependent loans, which are all on non-accrual status, by class at June 30, 2023 and December 31, 2022. Amortized Cost by Collateral Type (in thousands) Commercial Real Estate Residential Real Estate Other Total 1 Allowance for Credit Losses June 30, 2023 Commercial real estate, owner-occupied $ 457 $ — $ — $ 457 $ — Commercial real estate, non-owner occupied 906 — — 906 — Home equity — 749 — 749 — Total $ 1,363 $ 749 $ — $ 2,112 $ — December 31, 2022 Commercial real estate, owner-occupied $ 1,563 $ — $ — $ 1,563 $ — Home equity — 778 — 778 — Installment and other consumer — — 91 91 — Total $ 1,563 $ 778 $ 91 $ 2,432 $ — 1 There were no collateral-dependent residential real estate mortgage loans in process of foreclosure or in substance repossessed at June 30, 2023 or December 31, 2022. The weighted average loan-to-value of collateral dependent loans was approximately 40% at June 30, 2023 and 42% at December 31, 2022. Loan Modifications We adopted ASU No. 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures on January 1, 2023, as described in Note 2, Recently Adopted and Issued Accounting Standards. The amendments enhanced disclosures related to certain types of loan modifications for borrowers experiencing financial difficulty, including principal forgiveness, interest rate reductions, other-than-insignificant payment delays, and/or term extensions. There were no material modifications during the six months ended June 30, 2023 requiring disclosure. Allocation of the Allowance for Credit Losses on Loans The following table presents the details of the allowance for credit losses on loans segregated by loan portfolio segments as of June 30, 2023 and December 31, 2022 . Allocation of the Allowance for Credit Losses on Loans (in thousands) Commercial and industrial Commercial real estate, owner-occupied Commercial real estate, non-owner occupied Construction Home equity Other residential Installment and other consumer Unallocated Total June 30, 2023 Modeled expected credit losses $ 1,100 $ 1,329 $ 7,441 $ 195 $ 486 $ 558 $ 609 $ — $ 11,718 Qualitative adjustments 711 1,260 5,760 1,747 75 40 331 2,169 12,093 Specific allocations 20 — — — — 1 — — 21 Total $ 1,831 $ 2,589 $ 13,201 $ 1,942 $ 561 $ 599 $ 940 $ 2,169 $ 23,832 December 31, 2022 Modeled expected credit losses $ 1,079 $ 1,497 $ 7,937 $ 453 $ 504 $ 571 $ 610 $ — $ 12,651 Qualitative adjustments 706 990 4,739 1,484 54 24 258 2,068 10,323 Specific allocations 9 — — — — — — — 9 Total $ 1,794 $ 2,487 $ 12,676 $ 1,937 $ 558 $ 595 $ 868 $ 2,068 $ 22,983 Allowance for Credit Losses on Loans Rollforward The following table discloses activity in the allowance for credit losses on loans for the periods presented. Allowance for Credit Losses on Loans Rollforward (in thousands) Commercial and industrial Commercial real estate, owner-occupied Commercial real estate, non-owner occupied Construction Home equity Other residential Installment and other consumer Unallocated Total Three months ended June 30, 2023 Beginning balance $ 1,941 $ 2,640 $ 12,701 $ 2,019 $ 538 $ 577 $ 882 $ 2,032 $ 23,330 (Reversal) Provision (111) (51) 500 (86) 23 22 66 137 500 (Charge-offs) — — — — — — (9) — (9) Recoveries 1 — — 9 — — 1 — 11 Ending balance $ 1,831 $ 2,589 $ 13,201 $ 1,942 $ 561 $ 599 $ 940 $ 2,169 $ 23,832 Three months ended June 30, 2022 Beginning balance $ 1,784 $ 2,622 $ 12,301 $ 1,717 $ 549 $ 628 $ 641 $ 2,305 $ 22,547 (Reversal) Provision (89) (5) 138 12 (19) (43) 112 (106) — (Charge-offs) — — — — — — (20) — (20) Recoveries 4 — — 8 — — — — 12 Ending balance $ 1,699 $ 2,617 $ 12,439 $ 1,737 $ 530 $ 585 $ 733 $ 2,199 $ 22,539 Allowance for Credit Losses on Loans Rollforward (in thousands) Commercial and industrial Commercial real estate, owner-occupied Commercial real estate, investor Construction Home equity Other residential Installment and other consumer Unallocated Total Six months ended June 30, 2023 Beginning balance $ 1,794 $ 2,487 $ 12,676 $ 1,937 $ 558 $ 595 $ 868 $ 2,068 $ 22,983 Provision (reversal) 36 102 525 (12) 3 4 91 101 850 Charge-offs (3) — — — — — (20) — (23) Recoveries 4 — — 17 — — 1 — 22 Ending balance $ 1,831 $ 2,589 $ 13,201 $ 1,942 $ 561 $ 599 $ 940 $ 2,169 $ 23,832 Six months ended June 30, 2022 Beginning balance $ 1,709 $ 2,776 $ 12,739 $ 1,653 $ 595 $ 644 $ 621 $ 2,286 $ 23,023 (Reversal) Provision (17) (159) (300) 68 (65) (59) 134 (87) (485) Charge-offs — — — — — — (22) — (22) Recoveries 7 — — 16 — — — — 23 Ending balance $ 1,699 $ 2,617 $ 12,439 $ 1,737 $ 530 $ 585 $ 733 $ 2,199 $ 22,539 Pledged Loans Our FHLB line of credit is secured under terms of a blanket collateral agreement by a pledge of certain qualifying loans with unpaid principal balances of $1.293 billion and $1.298 billion at June 30, 2023 and December 31, 2022, respectively. In addition, we pledge eligible TIC loans, which totaled $109.0 million and $105.0 million at June 30, 2023 and December 31, 2022, respectively, to secure our borrowing capacity with the Federal Reserve Bank ("FRB"). For additional information, see Note 6, Borrowings. Related Party Loans

Short-Term Borrowings and Other

Short-Term Borrowings and Other Obligations	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Short-Term Borrowings and Other Obligations	Short-Term Borrowings and Other Obligations Federal Home Loan Bank – As of June 30, 2023 and December 31, 2022, the Bank had total lines of credit with the FHLB totaling $1.034 billion and $711.6 million, respectively, based on eligible collateral of certain loans and investment securities. Federal Funds Lines of Credit – The Bank had unsecured lines of credit with correspondent banks for overnight borrowings totaling $135.0 million and $150.0 million at June 30, 2023 and December 31, 2022, respectively. In general, interest rates on these lines approximate the federal funds target rate. Federal Reserve Bank – The Bank has a line of credit with the Federal Reserve Bank of San Francisco ("FRBSF") secured by certain residential loans. At June 30, 2023 and December 31, 2022, the Bank had total borrowing capacity under this line of $58.0 million and $58.7 million, respectively. In addition, under the Federal Reserve’s new BTFP facility, the Bank could borrow up to an additional $279.0 million based on the par value of pledged investment securities as of June 30, 2023 . Other Obligations – Finance lease liabilities totaling $372 thousand and $439 thousand at June 30, 2023 and December 31, 2022, respectively, are included in short-term borrowings and other obligations Outstanding balances and weighted average interest rates on short-term borrowings and other obligations as of June 30, 2023 and December 31, 2022 are summarized in the following table. June 30, 2023 December 31, 2022 (dollars in thousands) Outstanding Balance Weighted Outstanding Balance Weighted Average Rate FHLB - short-term borrowings $ 292,200 5.28 % $ 112,000 4.65 % Federal funds lines of credit — — % — — % FRBSF - federal funds purchased — — % — — % FRBSF - short-term borrowings under the BTFP — — % — — % Other obligations (finance leases) 372 1.97 % 439 1.86 % Total short-term borrowings and other obligations $ 292,572 5.28 % $ 112,439 4.64 %

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Stockholders' Equity	Stockholders' Equity Dividends On April 21, 2023, Bancorp declared a $0.25 per share cash dividend, paid May 12, 2023 to shareholders of record at the close of business on May 5, 2023. Subsequent to quarter end on July 21, 2023, Bancorp declared a $0.25 per share cash dividend, payable on August 11, 2023 to shareholders of record at the close of business on August 4, 2023. Share-Based Payments The fair value of stock options as of the grant date is recorded as stock-based compensation expense in the consolidated statements of comprehensive income (loss) over the requisite service period, which is generally the vesting period, with a corresponding increase in common stock. Stock-based compensation also includes compensation expense related to the issuance of restricted stock awards. The grant-date fair value of the restricted stock awards, which equals the grant date price, is recorded as compensation expense over the requisite service period with a corresponding increase in common stock as the shares vest. Beginning in 2018, stock option and restricted stock awards issued include a retirement eligibility clause whereby the requisite service period is satisfied at the retirement eligibility date. For those awards, we accelerate the recording of stock-based compensation when the award holder is eligible to retire. However, retirement eligibility does not affect the vesting of restricted stock or the exercisability of the stock options, which are based on the scheduled vesting period. Performance-based stock awards (restricted stock) are issued to a selected group of employees. Stock award vesting is contingent upon the achievement of pre-established long-term performance goals set by the Compensation Committee of the Board of Directors. Performance is measured over a three-year period and cliff vested. These performance-based stock awards were granted at a maximum opportunity level, and based on the achievement of the pre-established goals, the actual payouts can range from 0% to 200% of the target award. For performance-based stock awards, an estimate is made of the number of shares expected to vest based on the probability that the performance criteria will be achieved to determine the amount of compensation expense to be recognized. The estimate is re-evaluated quarterly and total compensation expense is adjusted for any change in the current period. We record excess tax benefits (deficiencies) resulting from the exercise of non-qualified stock options, the disqualifying disposition of incentive stock options and vesting of restricted stock awards as income tax benefits (expense) in the consolidated statements of comprehensive income with a corresponding decrease (increase) to current taxes payable. The holders of unvested restricted stock awards are entitled to dividends on the same per-share ratio as holders of common stock. Tax benefits for dividends paid on unvested restricted stock awards are recorded as tax benefits in the consolidated statements of comprehensive income with a corresponding decrease to current taxes payable. Dividends on forfeited awards are included in stock-based compensation expense. Stock options and restricted stock may be net settled in a cashless exercise by a reduction in the number of shares otherwise deliverable upon exercise or vesting in satisfaction of the exercise payment and/or applicable tax withholding requirements. During the six months ended June 30, 2023, we withheld 3,132 shares totaling $86 thousand at a weighted-average price of $27.57 for cashless exercises. During the six months ended June 30, 2022, we withheld 10,208 shares totaling $351 thousand at a weighted-average price of $34.38 for cashless exercises. Shares withheld under net settlement arrangements are available for future grants. Share Repurchase Program Bancorp had an approved share repurchase program with $34.7 million outstanding at June 30, 2023. There have been no repurchases in 2023. Cumulative shares repurchased under this program totaled 618,991 shares as of June 30, 2023 at an average price of $36.04 per share. Subsequent to quarter end on July 21, 2023, Bancorp adopted a new share repurchase program, which replaced the existing program that expired on July 31, 2023, for up to $25.0 million and expiring on July 31, 2025.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	Commitments and Contingent Liabilities Financial Instruments with Off-Balance Sheet Risk We make commitments to extend credit in the normal course of business to meet the financing needs of our customers. These financial instruments include commitments to extend credit in the form of loans or through standby letters of credit. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Because various commitments will expire without being fully drawn, the total commitment amount does not necessarily represent future cash requirements. Our credit loss exposure is equal to the contractual amount of the commitment in the event of nonperformance by the borrower. We use the same credit underwriting criteria for all credit exposure. The amount of collateral obtained, if deemed necessary by us, is based on management's credit evaluation of the borrower. Collateral types pledged may include accounts receivable, inventory, other personal property and real property. The contractual amount of unfunded loan commitments and standby letters of credit not reflected in the consolidated statements of condition are as follows: (in thousands) June 30, 2023 December 31, 2022 Commercial lines of credit $ 236,895 $ 292,204 Revolving home equity lines 219,144 218,907 Undisbursed construction loans 22,683 43,179 Personal and other lines of credit 9,701 10,842 Standby letters of credit 1,157 1,738 Total unfunded loan commitments and standby letters of credit $ 489,580 $ 566,870 We record an allowance for credit losses on unfunded loan commitments at the balance sheet date based on estimates of the probability that these commitments will be drawn upon according to historical utilization experience of the different types of commitments and expected loss rates determined for pooled funded loans. The allowance for credit losses on unfunded commitments totaled $1.1 million and $1.5 million as of June 30, 2023 and December 31, 2022, respectively, which is included in interest payable and other liabilities in the consolidated statements of condition. The $168 thousand reversal of the provision for credit losses on unfunded loan commitments in the second quarter of 2023 was due primarily to a $39.9 million decrease in total unfunded commitments. This compares to no provision for the same quarter in 2022. The $342 thousand reversal of the provision for credit losses on unfunded loan commitments in the first half of 2023 was due primarily to a $77.3 million decrease in total unfunded commitments, compared to a $318 thousand provision reversal in the first half of 2022, due to improved economic forecasts at the time. Leases We lease premises under long-term non-cancelable operating leases with remaining terms of 10 months to 18 years, 11 months, most of which include escalation clauses and one or more options to extend the lease term, and some of which contain lease termination clauses. Lease terms may include certain renewal options that were considered reasonably certain to be exercised. We lease certain equipment under finance leases with initial terms of 3 years to 5 years. The equipment finance leases do not contain renewal options, bargain purchase options or residual value guarantees. The following table shows the balances of operating and finance lease right-of-use assets and lease liabilities. (in thousands) June 30, 2023 December 31, 2022 Operating leases: Operating lease right-of-use assets $ 22,739 $ 24,821 Operating lease liabilities $ 25,220 $ 26,639 Finance leases: Finance lease right-of-use assets $ 608 $ 616 Accumulated amortization (245) (187) Finance lease right-of-use assets, net 1 $ 363 $ 429 Finance lease liabilities 2 $ 372 $ 439 1 Included in premises and equipment in the consolidated statements of condition. 2 Included in borrowings and other obligations in the consolidated statements of condition. The following table shows supplemental disclosures of noncash investing and financing activities for the periods presented. Six months ended (in thousands) June 30, 2023 June 30, 2022 Right-of-use assets obtained in exchange for operating lease liabilities, net of tenant improvement allowances received $ 572 $ 1,124 Right-of-use assets obtained in exchange for finance lease liabilities $ 7 $ — The following table shows components of operating and finance lease cost. Three months ended Six months ended (in thousands) June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Operating lease cost $ 1,322 $ 1,295 $ 2,932 $ 2,579 Variable lease cost — — — — Total operating lease cost 1 $ 1,322 $ 1,295 $ 2,932 $ 2,579 Finance lease cost: Amortization of right-of-use assets 2 $ 37 $ 31 $ 74 $ 62 Interest on finance lease liabilities 3 2 4 1 Total finance lease cost $ 39 $ 31 $ 78 $ 63 Total lease cost $ 1,361 $ 1,326 $ 3,010 $ 2,642 1 Included in occupancy and equipment expense in the consolidated statements of comprehensive income. 2 Included in depreciation and amortization in the consolidated statements of comprehensive income. 3 Included in interest on borrowings and other obligations in the consolidated statements of comprehensive income. The following table shows the future minimum lease payments, weighted average remaining lease terms, and weighted average discount rates under operating and finance lease arrangements as of June 30, 2023. The discount rates used to calculate the present value of lease liabilities were based on the collateralized FHLB borrowing rates that were commensurate with lease terms and minimum payments on the lease commencement date. (in thousands) June 30, 2023 Year Operating Leases Finance Leases 2023 $ 2,587 $ 78 2024 4,753 155 2025 4,112 108 2026 3,373 37 2027 3,097 5 Thereafter 10,017 — Total minimum lease payments 27,939 383 Amounts representing interest (present value discount) (2,719) (11) Present value of net minimum lease payments (lease liability) $ 25,220 $ 372 Weighted average remaining term (in years) 7.5 2.6 Weighted average discount rate 2.36 % 1.97 % Litigation Matters Bancorp may be party to legal actions that arise from time to time in the normal course of business. Bancorp's management is not aware of any pending legal proceedings to which either it or the Bank may be a party or has recently been a party that will have a material adverse effect on the financial condition or results of operations of Bancorp or the Bank. The Bank is responsible for a proportionate share of certain litigation indemnifications provided to Visa U.S.A. ("Visa") by its member banks in connection with Visa's lawsuits related to anti-trust charges and interchange fees ("Covered Litigation"). We sold our remaining shares on July 13, 2023, however our proportionate share of the litigation indemnification liability does not change or transfer upon the sale of our Class B Visa shares to member banks or, per the terms of the sale, to the recent purchaser of our shares. Visa established an escrow account for the Covered Litigation that it periodically funds, which is expected to cover the settlement payment obligations.

Derivative Financial Instrument

Derivative Financial Instruments and Hedging Activities	6 Months Ended
	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments and Hedging Activities	Derivative Financial Instruments and Hedging Activities We entered into interest rate swap agreements, primarily as an asset/liability management strategy, in order to mitigate the changes in the fair value of specified long-term fixed-rate loans (or firm commitments to enter into long-term fixed-rate loans) caused by changes in interest rates. These hedges allow us to offer long-term fixed-rate loans to customers without assuming the interest rate risk of a long-term asset. Converting our fixed-rate interest payments to floating-rate interest payments, generally benchmarked to the one-month U.S. dollar LIBOR index (which transitioned to the SOFR effective July 1, 2023 due to the cessation of the LIBOR index on June 30, 2023) protects us against changes in the fair value of our loans associated with fluctuating interest rates. Our credit exposure, if any, on interest rate swap asset positions is limited to the fair value (net of any collateral pledged to us) and interest payments of all swaps by each counterparty. Conversely, when an interest rate swap is in a liability position exceeding a certain threshold, we may be required to post collateral to the counterparty in an amount determined by the agreements. Collateral levels are monitored and adjusted on a regular basis for changes in interest rate swap values. As of June 30, 2023, we had four interest rate swap agreements, which are scheduled to mature at various dates ranging from June 2031 to October 2037. All of our derivatives are accounted for as fair value hedges. The notional amounts of the interest rate contracts are equal to the notional amounts of the hedged loans. Our interest rate swap payments are settled monthly with counterparties. Accrued interest receivable on the swaps totaled $7 thousand at June 30, 2023 and $5 thousand at December 31, 2022. Information on our derivatives follows: Asset Derivatives Liability Derivatives (in thousands) June 30, December 31, 2022 June 30, December 31, 2022 Fair value hedges: Interest rate contracts notional amount $ 11,535 $ 12,046 $ — $ — Interest rate contracts fair value 1 $ 631 $ 602 $ — $ — 1 See Note 3, Fair Value of Assets and Liabilities, for valuation methodology. The following table presents the carrying amount and associated cumulative basis adjustment related to the application of fair value hedge accounting that is included in the carrying amount of hedged assets as of June 30, 2023 and December 31, 2022. Carrying Amounts of Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Loans (in thousands) June 30, 2023 December 31, 2022 June 30, 2023 December 31, 2022 Loans $ 10,786 $ 11,319 $ (749) $ (726) The following table presents the net gains (losses) recognized in interest income on loans on the consolidated statements of comprehensive income (loss) related to our derivatives designated as fair value hedges. Three months ended Six months ended (in thousands) June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Interest and fees on loans 1 $ 24,579 $ 23,334 $ 48,837 $ 47,011 Increase (decrease) in fair value of designated interest rate swaps due to LIBOR interest rate movements $ 250 $ 430 $ 29 $ 1,187 Receivable (payment) on interest rate swaps 66 (65) 118 (150) (Decrease) increase in fair value hedging adjustment of hedged loans (243) (428) (23) (1,180) Decrease in value of yield maintenance agreement (2) (2) (4) (5) Net gain (loss) on fair value hedging relationships recognized in interest income $ 71 $ (65) $ 120 $ (148) 1 Represents the income line item in the statement of comprehensive income in which the effects of fair value hedges are recorded. Our derivative transactions with counterparties are under International Swaps and Derivative Association (“ISDA”) master agreements that include “right of set-off” provisions. “Right of set-off” provisions are legally enforceable rights to offset recognized amounts and there may be an intention to settle such amounts on a net basis. We do not offset such financial instruments for financial reporting purposes. Information on financial instruments that are eligible for offset in the consolidated statements of condition follows: Offsetting of Financial Assets and Derivative Assets Gross Amounts Net Amounts of Gross Amounts Not Offset in Gross Amounts Offset in the Assets Presented the Statements of Condition of Recognized Statements of in the Statements Financial Cash Collateral ( in thousands) Assets 1 Condition of Condition 1 Instruments Received Net Amount June 30, 2023 Counterparty $ 631 $ — $ 631 $ — $ — $ 631 December 31, 2022 Counterparty $ 602 $ — $ 602 $ — $ — $ 602 Offsetting of Financial Liabilities and Derivative Liabilities 1 Amounts exclude accrued interest on swaps. For more information on how we account for our interest rate swaps, refer to Note 1 to the Consolidated Financial Statements included in our 2022 Form 10-K filed with the SEC on March 16, 2023.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pay vs Performance Disclosure
Net income	$ 4,551	$ 9,440	$ 11,066	$ 13,991	$ 21,531

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The consolidated financial statements include the accounts of Bancorp, a bank holding company, and its wholly-owned bank subsidiary, Bank of Marin, a California state-chartered commercial bank. References to “we,” “our,” “us” mean Bancorp and the Bank that are consolidated for financial reporting purposes. The accompanying unaudited consolidated interim financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and note disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been condensed or omitted pursuant to those rules and regulations. Although we believe that the disclosures are adequate and the information presented is not misleading, we suggest that these interim financial statements be read in conjunction with the annual financial statements and the notes thereto included in our 2022 Annual Report on Form 10-K. In the opinion of management, the unaudited consolidated financial statements reflect all adjustments, which are necessary for a fair presentation of the consolidated financial position, the results of operations, changes in comprehensive income (loss), changes in stockholders’ equity, and cash flows for the periods presented. All material intercompany transactions have been eliminated. The results of these interim periods may not be indicative of the results for the full year or for any other period.
Earnings Per Share	Basic earnings per share (“EPS”) are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares. The number of potentially dilutive common shares included in the quarterly diluted EPS is computed using the average market prices during the three months included in the reporting period under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. In computing diluted EPS, we exclude anti-dilutive shares such as options whose exercise prices exceed the current common stock price, as they would not reduce EPS under the treasury method. We have two forms of outstanding common stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Under the two-class method, the difference in EPS is nominal for these participating securities.
Recently Adopted and Issued Accounting Standards	Recently Adopted and Issued Accounting Standards Accounting Standards Adopted in 2023 In March 2022, the FASB issued ASU No. 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures . The amendment eliminated the recognition measurement guidance for troubled debt restructured ("TDR") loans and instead enhanced disclosure requirements for certain loan modifications when a borrower is experiencing financial difficulty. In addition, the amendment required that an entity include in its vintage disclosures the current period gross loan charge-offs by year of origination. We early adopted the current period charge-off disclosures in the first quarter of 2022. We adopted the loan modification provisions as of January 1, 2023 using a modified retrospective method. The cumulative-effect adjustment to retained earnings was considered immaterial. Refer to Note 5, Loans and Allowance for Credit Losses on Loans, for additional information. In March 2022, the FASB issued ASU No. 2022-01, Derivatives and Hedging (Topic 815): Fair Value Hedging - Portfolio Layer Method . Among other things, the ASU renamed the "last-of-layer" method to the "portfolio layer" method and made fair value hedging more accessible for hedge accounting of interest rate risk for portfolios and financial assets. For example, the guidance permits an entity to apply the same portfolio hedging method to both prepayable and non-prepayable financial assets, thereby providing for consistency between accounting for similar hedges. We adopted the amendments on January 1, 2023, which had no effect on our existing hedge accounting, disclosures, financial condition or results of operations. Accounting Standards Not Yet Effective In March 2020, the FASB issued Accounting Standards Update ("ASU") No. 2020-04, Reference Rate Reform (Topic 848) . The amendments in this ASU are elective and provide optional guidance for a limited period of time to ease the potential burden of accounting for, or recognizing the effects of reference rate reform. The amendments in this ASU provide optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. Topic 848 was further amended in January 2021 with ASU No. 2021-01, which provided additional guidance on certain optional expedients and scope of derivative instruments, and in December 2022 with ASU 2022-06, which extended the sunset date of Topic 848 to December 31, 2024 given the UK Financial Conduct Authority ("FCA") March 2021 announcement that the intended cessation date of certain tenors of USD LIBOR would be June 30, 2023. An entity may elect the amendments in these updates at an interim period with adoption methods varying based on transaction type. As of June 30, 2023, we had four interest rate swap contracts with notional values totaling $11.5 million indexed to LIBOR, which transitioned to the Secured Overnight Financing Rate ("SOFR") effective July 1, 2023. The transition to SOFR did not have a material impact to either our financial condition or results of operations. In June 2022, the FASB issued ASU No. 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions . The amendment reduces diversity in practice by clarifying that a separate contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. In addition, this ASU provided amended examples to illustrate that a restriction that is a characteristic of the equity security, which market participants would take into account when pricing them, would be considered in measuring fair value. This ASU also introduces new disclosure requirements. The amendments are effective prospectively for years beginning after December 15, 2023. Early adoption is permitted for both interim and annual financial statements. As discussed in Note 4, Investment Securities, on July 13, 2023 we sold our remaining shares of Visa Inc. Class B restricted common stock. As a result of the sale, this update will not impact our financial condition, results of operations or disclosures. In March 2023, the FASB issued ASU No. 2023-01, Leases (Topic 842): Common Control Arrangements . For public companies, the amendment requires entities to amortize leasehold improvements associated with common control lease arrangements over the useful life of the improvements to the common control group, as opposed to the shorter of the remaining lease term and the useful life of the improvements for all other operating leases. The amendments are effective for years beginning after December 15, 2023, and may be adopted either prospectively or retrospectively. Early adoption is permitted for both interim and annual financial statements. We currently do not have common control lease arrangements, and therefore do not anticipate that the amendments will impact our financial condition and results of operations. In March 2023, the FASB issued ASU No. 2023-02, Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method . Under current GAAP, an entity can only elect to apply the proportional amortization method to investments in low-income housing tax credit ("LIHTC") structures. The proportional amortization method results in the cost of the investment being amortized in proportion to the income tax credits and other income tax benefits received, with the amortization of the investment and the income tax credits being presented net in the consolidated statements of income as a component of income tax expense (benefit). The amendments will allow entities to elect to account for all other equity investments made primarily for the purpose of receiving income tax credits to using the proportional amortization method, regardless of the tax credit program through which the investment earns income tax credits,
Fair Value Hierarchy and Fair Value Measurement	We group our assets and liabilities that are measured at fair value into three levels within the fair value hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are: Level 1: Valuations are based on unadjusted quoted prices in active markets for identical assets or liabilities. Level 2: Valuations are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuations for which all significant assumptions are observable or can be corroborated by observable market data. Level 3: Valuations are based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Values are determined using pricing models and discounted cash flow models and may include significant management judgment and estimation. Transfers between levels of the fair value hierarchy are recognized through our monthly and/or quarterly valuation process in the reporting period during which the event or circumstances that caused the transfer occurred. No such transfers occurred in the years presented. of the measurement date. When the value of any collateral placed with counterparties is less than the interest rate derivative liability, a credit valuation adjustment ("CVA") is applied to reflect the credit risk we pose to counterparties. We have used the spread between the Standard & Poor's BBB rated U.S. Bank Composite rate and LIBOR for the closest maturity term corresponding to the duration of the swaps to derive the CVA. A similar credit risk adjustment, correlated to the credit standing of the counterparty, is made when collateral posted by the counterparty does not fully cover their liability to us. For further discussion on our methodology in valuing our derivative financial instruments, refer to Note 9, Derivative Financial Instruments and Hedging Activities. Certain financial assets may be measured at fair value on a non-recurring basis. These assets are subject to fair value adjustments that result from the application of the lower of cost or fair value accounting or write-downs of individual assets, such as individually analyzed loans that are collateral dependent and other real estate owned ("OREO"). Fair value of loans is based on exit price techniques and obtained from an independent third-party that uses its proprietary valuation model and methodology and may differ from actual price from a prospective buyer. The discounted cash flow valuation approach reflects key inputs and assumptions that are unobservable, such as loan probability of default, loss given default, prepayment speed, and market discount rates. Fair value of fixed-rate time deposits is estimated by discounting future contractual cash flows using discount rates that reflect the current observable market rates offered for time deposits of similar remaining maturities. Due to the short-term nature of the FHLB borrowings, the carrying value approximates fair value.
Finance, Loan and Lease Receivables, Held-for-investment, Allowance and Nonperforming Loans	Commercial and Industrial Loans - Commercial loans are generally made to established small and mid-sized businesses to provide financing for their growth and working capital needs, equipment purchases and acquisitions. Management examines historical, current, and projected cash flows to determine the ability of the borrower to repay obligations as agreed. Commercial loans are made based primarily on the identified cash flows of the borrower and secondarily on the underlying collateral and guarantor support. The cash flows of borrowers, however, may not occur as expected, and the collateral securing these loans may fluctuate in value. Most commercial and industrial loans are secured by the assets being financed, such as accounts receivable and inventory, and typically include personal guarantees. We target stable businesses with guarantors who provide additional sources of repayment and have proven to be resilient in periods of economic stress. A weakened economy, and resultant decreased consumer and/or business spending, may have an effect on the credit quality of commercial loans. Commercial Real Estate Loans - Commercial real estate loans, which include income producing investment properties and owner-occupied real estate used for business purposes, are subject to underwriting standards and processes similar to commercial loans discussed above. We underwrite these loans to be repaid from cash flow from either the business or investment property and supported by real property collateral. Underwriting standards for commercial real estate loans include, but are not limited to, debt coverage and loan-to-value ratios. Furthermore, a large majority of our loans are guaranteed by the owners of the properties. Conditions in the real estate markets or downturn in the general economy may adversely affect our commercial real estate loans. In the event of a vacancy, we expect guarantors to carry the loans until they find a replacement tenant. The owner's substantial equity investment provides a strong economic incentive to continue to support the commercial real estate projects. As such, we have generally experienced a relatively low level of loss and delinquencies in this portfolio. Construction Loans - Construction loans are generally made to developers and builders to finance construction, renovation and occasionally land acquisitions in anticipation of near-term development. Construction loans include interest reserves that are used for the payment of interest during the development and marketing periods and are capitalized as part of the loan balance. When a construction loan is placed on nonaccrual status before the depletion of the interest reserve, we apply the interest funded by the interest reserve against the loan's principal balance. These loans are underwritten after evaluation of the borrower's financial strength, reputation, prior track record, and independent appraisals. We monitor all construction projects to determine whether they are on schedule, completed as planned and in accordance with the approved construction budgets. Significant events can affect the construction industry, including: the inherent volatility of real estate markets and vulnerability to delays due to weather, change orders, inability to obtain construction permits, labor or material shortages, and price changes. Estimates of construction costs and value associated with the completed project may be inaccurate. Repayment of construction loans is largely dependent on the ultimate success of the project. Consumer Loans - Consumer loans primarily consist of home equity lines of credit, other residential loans, floating homes, and indirect luxury auto loans, along with a small number of installment loans. Our other residential loans include tenancy-in-common fractional interest loans ("TIC") located almost entirely in San Francisco County. We originate consumer loans utilizing credit score information, debt-to-income ratio and loan-to-value ratio analysis. Diversification among consumer loan types, coupled with relatively small loan amounts that are spread across many individual borrowers, mitigates risk. We do not originate sub-prime residential mortgage loans, nor is it our practice to underwrite loans commonly referred to as "Alt-A mortgages," the characteristics of which are reduced documentation, borrowers with low FICO scores or collateral with high loan-to-value ratios. Credit Quality Indicators We use a risk rating system to evaluate asset quality, and to identify and monitor credit risk in individual loans, and in the loan portfolio. Our definitions of “Special Mention” risk graded loans, or worse, are consistent with those used by the Federal Deposit Insurance Corporation ("FDIC"). Our internally assigned grades are as follows: Pass and Watch - Loans to borrowers of acceptable or better credit quality. Borrowers in this category demonstrate fundamentally sound financial positions, repayment capacity, credit history and management expertise. Loans in this category must have an identifiable and stable source of repayment and meet the Bank’s policy regarding debt-service-coverage ratios. These borrowers are capable of sustaining normal economic, market or operational setbacks without significant financial consequences. Negative external industry factors are generally not present. The loan may be secured, unsecured or supported by non-real estate collateral for which the value is more difficult to determine and/or marketability is more uncertain. This category also includes “Watch” loans, where the primary source of repayment has been delayed. “Watch” is intended to be a transitional grade, with either an upgrade or downgrade within a reasonable period. Special Mention - Potential weaknesses that deserve close attention. If left uncorrected, those potential weaknesses may result in deterioration of the payment prospects for the asset. Special Mention assets do not present sufficient risk to warrant adverse classification. Substandard - Inadequately protected by either the current sound worth and paying capacity of the obligor or the collateral pledged, if any. A Substandard asset has a well-defined weakness or weaknesses that jeopardize(s) the liquidation of the debt. Substandard assets are characterized by the distinct possibility that we will sustain some loss if such weaknesses or deficiencies are not corrected. Well-defined weaknesses include adverse trends or developments of the borrower’s financial condition, managerial weaknesses and/or significant collateral deficiencies. Doubtful - Critical weaknesses that make collection or liquidation in full improbable. There may be specific pending events that work to strengthen the asset; however, the amount or timing of the loss may not be determinable. Pending events generally occur within one year of the asset being classified as Doubtful. Examples include: merger, acquisition, or liquidation; capital injection; guarantee; perfecting liens on additional collateral; and refinancing. Such loans are placed on non-accrual status and usually are collateral-dependent. We regularly review our credits for accuracy of risk grades whenever we receive new information and at each quarterly and year-end reporting period. Borrowers are generally required to submit financial information at regular intervals. Typically, commercial borrowers with lines of credit are required to submit financial information with reporting intervals ranging from monthly to annually depending on credit size, risk and complexity. In addition, investor commercial real estate borrowers with loans exceeding a certain dollar threshold are usually required to submit rent rolls or property income statements annually. We monitor construction loans monthly. We review home equity and other consumer loans based on delinquency. We also review loans graded “Watch” or worse, regardless of loan type, no less than quarterly.

Basis of Presentation (Tables)

Basis of Presentation (Tables)	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Earnings Per Share Reconciliation	The following table shows: 1) weighted average basic shares, 2) potentially dilutive weighted average common shares related to stock options and unvested restricted stock awards, and 3) weighted average diluted shares. Basic earnings per share (“EPS”) are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares. The number of potentially dilutive common shares included in the quarterly diluted EPS is computed using the average market prices during the three months included in the reporting period under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. In computing diluted EPS, we exclude anti-dilutive shares such as options whose exercise prices exceed the current common stock price, as they would not reduce EPS under the treasury method. We have two forms of outstanding common stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Under the two-class method, the difference in EPS is nominal for these participating securities. Three months ended Six months ended (in thousands, except per share data) June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Weighted average basic common shares outstanding 16,009 15,921 15,990 15,898 Potentially dilutive common shares related to: Stock options — 24 7 38 Unvested restricted stock awards 7 10 11 14 Weighted average diluted common shares outstanding 16,016 15,955 16,008 15,950 Net income $ 4,551 $ 11,066 $ 13,991 $ 21,531 Basic EPS $ 0.28 $ 0.70 $ 0.88 $ 1.35 Diluted EPS $ 0.28 $ 0.69 $ 0.87 $ 1.35 Weighted average anti-dilutive common shares not included in the calculation of diluted EPS 389 230 358 167

Fair Value of Assets and Liab_2

Fair Value of Assets and Liabilities (Tables)	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table summarizes our assets and liabilities that were required to be recorded at fair value on a recurring basis. (in thousands) Description of Financial Instruments Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs Significant Unobservable Inputs Measurement Categories: Changes in Fair Value Recorded In 1 June 30, 2023 Securities available-for-sale: Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies $ 449,823 $ — $ 449,823 $ — OCI SBA-backed securities $ 36,649 $ — $ 36,649 $ — OCI Debentures of government sponsored agencies $ 135,868 $ — $ 135,868 $ — OCI U.S. Treasury securities $ 10,334 $ 10,334 $ — $ — OCI Obligations of state and political subdivisions $ 102,916 $ — $ 102,916 $ — OCI Corporate bonds $ 34,043 $ — $ 34,043 $ — OCI Asset-backed securities $ 1,309 $ — $ 1,309 $ — OCI Derivative financial assets (interest rate contracts) $ 631 $ — $ 631 $ — NI December 31, 2022 Securities available-for-sale: Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies $ 475,505 $ — $ 475,505 $ — OCI SBA-backed securities $ 44,355 $ — $ 44,355 $ — OCI Debentures of government sponsored agencies $ 135,106 $ — $ 135,106 $ — OCI U.S. Treasury securities $ 10,269 $ 10,269 $ — $ — OCI Obligations of state and political subdivisions $ 102,123 $ — $ 102,123 $ — OCI Corporate bonds $ 33,276 $ — $ 33,276 $ — OCI Asset-backed securities $ 1,462 $ — $ 1,462 $ — OCI Derivative financial assets (interest rate contracts) $ 602 $ — $ 602 $ — NI 1 Other comprehensive income ("OCI") or net income ("NI").
Schedule of Fair Value Assets Measured on Non-recurring Basis	The following table presents the carrying value of assets measured at fair value on a non-recurring basis and that were held in the consolidated statements of condition at each respective period end, by level within the fair value hierarchy as of June 30, 2023 and December 31, 2022. (in thousands) Carrying Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2023 Other real estate owned $ 415 $ — $ — $ 415 December 31, 2022 Other real estate owned $ 455 $ — $ — $ 455
Schedule of Fair Value by Balance Sheet Grouping	The table below is a summary of fair value estimates for financial instruments as of June 30, 2023 and December 31, 2022, excluding financial instruments recorded at fair value on a recurring basis (summarized in the first table in this note). The carrying amounts in the following table are recorded in the consolidated statements of condition under the indicated captions. Further, we have not disclosed the fair value of financial instruments specifically excluded from disclosure requirements such as bank-owned life insurance policies ("BOLI"), lease obligations and non-maturity deposit liabilities. Additionally, we held shares of Federal Home Loan Bank ("FHLB") of San Francisco stock at cost and Visa Inc. Class B common stock with no carrying value, as there was no impairment or changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer as of June 30, 2023 or December 31, 2022. The values are discussed in Note 4, Investment Securities. June 30, 2023 December 31, 2022 (in thousands) Carrying Amounts Fair Value Fair Value Hierarchy Carrying Amounts Fair Value Fair Value Hierarchy Financial assets (recorded at amortized cost): Cash and cash equivalents $ 39,657 $ 39,657 Level 1 $ 45,424 $ 45,424 Level 1 Investment securities held-to-maturity 946,808 826,067 Level 2 972,207 845,239 Level 2 Loans, net 2,078,964 1,985,481 Level 3 2,069,563 1,993,866 Level 3 Interest receivable 12,810 12,810 Level 2 13,069 13,069 Level 2 Financial liabilities (recorded at amortized cost): Time deposits 203,463 204,679 Level 2 119,030 118,333 Level 2 Federal Home Loan Bank short-term borrowings 292,200 292,200 Level 2 112,000 112,000 Level 2 Interest payable 868 868 Level 2 75 75 Level 2

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Summary of Held-to-Maturity Investments	A summary of the amortized cost, fair value and allowance for credit losses related to securities held-to-maturity as of June 30, 2023 and December 31, 2022 is presented below. Held-to-maturity: Amortized Cost 1 Allowance for Credit Losses Net Carrying Amount Gross Unrealized Fair Value (in thousands) Gains (Losses) June 30, 2023 Securities of U.S. government-sponsored enterprises: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 316,968 $ — $ 316,968 $ — $ (48,904) $ 268,064 CMOs issued by FHLMC 231,217 — 231,217 177 (27,759) 203,635 CMOs issued by FNMA 106,894 — 106,894 113 (6,436) 100,571 CMOs issued by GNMA 51,511 — 51,511 216 (3,271) 48,456 SBA-backed securities 1,977 — 1,977 — (130) 1,847 Debentures of government-sponsored agencies 145,973 — 145,973 — (24,087) 121,886 Obligations of state and political subdivisions 62,268 — 62,268 6 (9,029) 53,245 Corporate bonds 30,000 — 30,000 — (1,637) 28,363 Total held-to-maturity $ 946,808 $ — $ 946,808 $ 512 $ (121,253) $ 826,067 December 31, 2022 Securities of U.S. government-sponsored enterprises: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 331,281 $ — $ 331,281 $ — $ (50,147) $ 281,134 CMOs issued by FHLMC 235,971 — 235,971 59 (29,503) 206,527 CMOs issued by FNMA 111,904 — 111,904 — (5,419) 106,485 CMOs issued by GNMA 52,356 — 52,356 11 (3,076) 49,291 SBA-backed securities 2,372 — 2,372 — (133) 2,239 Debentures of government-sponsored agencies 145,823 — 145,823 — (26,467) 119,356 Obligations of state and political subdivisions 62,500 — 62,500 — (10,741) 51,759 Corporate bonds 30,000 — 30,000 — (1,552) 28,448 Total held-to-maturity $ 972,207 $ — $ 972,207 $ 70 $ (127,038) $ 845,239 1 Amortized cost and fair values exclude accrued interest receivable of $3.6 million and $3.7 million at June 30, 2023 and December 31, 2022, respectively, which is included in interest receivable and other assets in the consolidated statements of condition.
Schedule of Bond Ratings for Held-to-Maturity Securities	The following table summarizes the amortized cost of our portfolio of held-to-maturity securities issued by states and political subdivisions and corporate bonds by Moody's and/or Standard & Poor's bond ratings as of June 30, 2023. Obligations of state and political subdivisions Corporate bonds (in thousands) June 30, 2023 December 31, 2022 June 30, 2023 December 31, 2022 AAA / Aaa $ 42,783 $ 42,986 $ — $ — AA / Aa 19,485 19,514 — — A2 / A — — 30,000 30,000 Total $ 62,268 $ 62,500 $ 30,000 $ 30,000
Summary of Available-for-Sale Investments	A summary of the amortized cost, fair value and allowance for credit losses related to securities available-for-sale as of June 30, 2023 and December 31, 2022 is presented below. Available-for-sale: Amortized Cost 1 Gross Unrealized Allowance for Credit Losses Fair Value (in thousands) Gains (Losses) June 30, 2023 Securities of U.S. government-sponsored enterprises: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 102,420 $ 2 $ (11,758) $ — $ 90,664 CMOs issued by FHLMC 333,374 — (32,162) — 301,212 CMOs issued by FNMA 32,916 — (3,816) — 29,100 CMOs issued by GNMA 32,193 31 (3,377) — 28,847 SBA-backed securities 39,824 — (3,175) — 36,649 Debentures of government- sponsored agencies 149,129 — (13,261) — 135,868 U.S. Treasury securities 11,914 — (1,580) — 10,334 Obligations of state and political subdivisions 116,040 36 (13,160) — 102,916 Corporate bonds 36,991 — (2,948) — 34,043 Asset-backed securities 1,365 — (56) — 1,309 Total available-for-sale $ 856,166 $ 69 $ (85,293) $ — $ 770,942 December 31, 2022 Securities of U.S. government-sponsored enterprises: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 109,736 $ 3 $ (12,133) $ — $ 97,606 CMOs issued by FHLMC 347,437 — (33,682) — 313,755 CMOs issued by FNMA 36,172 — (3,852) — 32,320 CMOs issued by GNMA 35,120 — (3,296) — 31,824 SBA-backed securities 47,724 2 (3,371) — 44,355 Debentures of government- sponsored agencies 149,114 — (14,008) — 135,106 U.S. Treasury securities 11,904 — (1,635) 10,269 Obligations of state and political subdivisions 116,855 29 (14,761) — 102,123 Corporate bonds 36,990 — (3,714) — 33,276 Asset-backed securities 1,553 — (91) — 1,462 Total available-for-sale $ 892,605 $ 34 $ (90,543) $ — $ 802,096 1 Amortized cost and fair value exclude accrued interest receivable of $3.1 million and $3.2 million at June 30, 2023 and December 31, 2022, respectively, which is included in interest receivable and other assets in the consolidated statements of condition.
Schedule of Investments Classified by Contractual Maturity Date	The amortized cost a nd fair value of investment debt securities by contractual maturity at June 30, 2023 and December 31, 2022 are shown below. Expected maturities may differ from contractual maturities if the issuers of the securities have the right to call or prepay obligations with or without call or prepayment penalties. June 30, 2023 December 31, 2022 Held-to-Maturity Available-for-Sale Held-to-Maturity Available-for-Sale (in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Within one year $ — $ — $ 26,665 $ 25,344 $ 450 $ 446 $ 1,254 $ 1,239 After one but within five years 89,625 85,060 354,735 324,368 87,418 83,663 335,813 307,843 After five years through ten years 266,785 227,818 130,738 117,530 262,072 222,280 185,997 166,273 After ten years 590,398 513,189 344,028 303,700 622,267 538,850 369,541 326,741 Total $ 946,808 $ 826,067 $ 856,166 $ 770,942 $ 972,207 $ 845,239 $ 892,605 $ 802,096
Schedule of Financial Instruments Owned and Pledged as Collateral	The carrying values of pledged investment securities are shown in the following table: (in thousands) June 30, 2023 December 31, 2022 Pledged to the State of California: Secure public deposits in compliance with the Local Agency Security Program $ 199,327 $ 235,587 Collateral for trust deposits 672 677 Collateral for Wealth Management and Trust Services checking account 565 569 Total investment securities pledged to the State of California 200,564 236,833 Bankruptcy trustee deposits pledged with Federal Reserve Bank 1,594 1,737 Pledged to FHLB Securities-Backed Credit Program 391,668 — Pledged to the Federal Reserve Bank Term Funding Program ("BTFP") 274,215 — Total pledged investment securities $ 868,041 $ 238,570
Schedule of Unrealized Loss on Investments	Those securities are summarized and classified according to the duration of the loss period in the tables below: June 30, 2023 < 12 continuous months ≥ 12 continuous months Total securities (in thousands) Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss Held-to-maturity: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 4,178 $ (132) $ 263,886 $ (48,772) $ 268,064 $ (48,904) CMOs issued by FHLMC 31,915 (1,171) 162,369 (26,588) 194,284 (27,759) CMOs issued by FNMA 43,167 (2,064) 39,161 (4,372) 82,328 (6,436) CMOs issued by GNMA 27,024 (1,895) 9,902 (1,376) 36,926 (3,271) SBA-backed securities — — 1,847 (130) 1,847 (130) Debentures of government-sponsored agencies 29,245 (749) 92,642 (23,338) 121,887 (24,087) Obligations of state and political subdivisions — — 50,154 (9,029) 50,154 (9,029) Corporate bonds — — 28,363 (1,637) 28,363 (1,637) Total held-to-maturity 135,529 (6,011) 648,324 (115,242) 783,853 (121,253) Available-for-sale: MBS pass-through securities issued by FHLMC, FNMA and GNMA 4,422 (177) 85,498 (11,581) 89,920 (11,758) CMOs issued by FHLMC 12 — 301,200 (32,162) 301,212 (32,162) CMOs issued by FNMA 37 (1) 29,063 (3,815) 29,100 (3,816) CMOs issued by GNMA — — 25,070 (3,377) 25,070 (3,377) SBA-backed securities 29 — 36,309 (3,175) 36,338 (3,175) Debentures of government- sponsored agencies — — 135,868 (13,261) 135,868 (13,261) U.S. Treasury securities — — 10,334 (1,580) 10,334 (1,580) Obligations of state and political subdivisions 4,799 (54) 90,869 (13,106) 95,668 (13,160) Corporate bonds — — 34,043 (2,948) 34,043 (2,948) Asset-backed securities — — 1,309 (56) 1,309 (56) Total available-for-sale 9,299 (232) 749,563 (85,061) 758,862 (85,293) Total securities at loss position $ 144,828 $ (6,243) $ 1,397,887 $ (200,303) $ 1,542,715 $ (206,546) December 31, 2022 < 12 continuous months ≥ 12 continuous months Total securities (in thousands) Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss Held-to-maturity: MBS pass-through securities issued by FHLMC, FNMA and GNMA $ 62,627 $ (5,960) $ 218,507 $ (44,187) $ 281,134 $ (50,147) CMOs issued by FHLMC 78,144 (5,874) 113,796 (23,629) 191,940 (29,503) CMOs issued by FNMA 106,485 (5,419) — — 106,485 (5,419) CMOs issued by GNMA 27,570 (1,676) 10,331 (1,400) 37,901 (3,076) SBA-backed securities 2,239 (133) — — 2,239 (133) Debentures of government- sponsored agencies 38,645 (2,530) 80,711 (23,937) 119,356 (26,467) Obligations of state and political subdivisions 15,155 (589) 36,603 (10,152) 51,758 (10,741) Corporate Bonds 28,448 (1,552) — — 28,448 (1,552) Total held-to-maturity 359,313 (23,733) 459,948 (103,305) 819,261 (127,038) Available-for-sale: MBS pass-through securities issued by FHLMC, FNMA and GNMA 44,630 (4,501) 52,235 (7,632) 96,865 (12,133) CMOs issued by FHLMC 169,760 (15,144) 143,995 (18,538) 313,755 (33,682) CMOs issued by FNMA 4,790 (235) 27,529 (3,617) 32,319 (3,852) CMOs issued by GNMA 8,214 (374) 23,612 (2,922) 31,826 (3,296) SBA-backed securities 37,845 (3,228) 6,133 (143) 43,978 (3,371) Debentures of government- sponsored agencies 19,054 (946) 116,052 (13,062) 135,106 (14,008) U.S. Treasury securities — — 10,269 (1,635) 10,269 (1,635) Obligations of state and political subdivisions 70,402 (9,459) 28,711 (5,302) 99,113 (14,761) Corporate Bonds — — 33,276 (3,714) 33,276 (3,714) Asset-backed securities — — 1,462 (91) 1,462 (91) Total available-for-sale 354,695 (33,887) 443,274 (56,656) 797,969 (90,543) Total securities at loss position $ 714,008 $ (57,620) $ 903,222 $ (159,961) $ 1,617,230 $ (217,581)

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses on Loans (Tables)	6 Months Ended
	Jun. 30, 2023
Receivables [Abstract]
Schedule of Loans by Class	The following table presents the amortized cost of loans by class as of June 30, 2023 and December 31, 2022. (in thousands) June 30, 2023 December 31, 2022 Commercial and industrial $ 183,157 $ 173,547 Real estate: Commercial owner-occupied 344,951 354,877 Commercial non-owner occupied 1,196,158 1,191,889 Construction 108,986 114,373 Home equity 85,587 88,748 Other residential 118,646 112,123 Installment and other consumer loans 65,311 56,989 Total loans, at amortized cost 1 2,102,796 2,092,546 Allowance for credit losses on loans (23,832) (22,983) Total loans, net of allowance for credit losses on loans $ 2,078,964 $ 2,069,563 1 Amortized cost includes net deferred loan origination costs of $2.4 million and $1.8 million at June 30, 2023 and December 31, 2022, respectively. Amounts are also net of unrecognized purchase discounts of $2.2 million and $2.6 million at June 30, 2023 and December 31, 2022, respectively. Amortized cost excludes accrued interest, which totaled $6.0 million and $6.1 million at June 30, 2023 and December 31, 2022, respectively, and is included in interest receivable and other assets in the consolidated statements of condition.
Schedule of Financing Receivable Credit Quality Indicators	The following tables present the loan portfolio by loan class, origination year and internal risk rating as of June 30, 2023 and December 31, 2022. The current year vintage table reflects gross charge-offs by loan class and year of origination. Generally, existing term loans that were re-underwritten are reflected in the table in the year of renewal. Lines of credit that have a conversion feature at the time of origination, such as construction to perm loans, are presented by year of origination. (in thousands) Term Loans - Amortized Cost by Origination Year Revolving Loans Amortized Cost June 30, 2023 2023 2022 2021 2020 2019 Prior Total Commercial and industrial: Pass and Watch $ 30,686 $ 11,481 $ 3,726 $ 5,173 $ 16,419 $ 25,287 $ 67,323 $ 160,095 Special Mention — — — — 2,718 664 8,656 12,038 Substandard — 274 — 1,030 — 3,641 6,079 11,024 Total commercial and industrial $ 30,686 $ 11,755 $ 3,726 $ 6,203 $ 19,137 $ 29,592 $ 82,058 $ 183,157 Gross current period charge-offs $ — $ — $ — $ — $ (3) $ — $ — $ (3) Commercial real estate, owner-occupied: Pass and Watch $ 1,045 $ 55,268 $ 50,712 $ 39,447 $ 44,398 $ 125,506 $ — $ 316,376 Special Mention — — 15,919 — 293 10,537 — 26,749 Substandard — — — — — 1,826 — 1,826 Total commercial real estate, owner-occupied $ 1,045 $ 55,268 $ 66,631 $ 39,447 $ 44,691 $ 137,869 $ — $ 344,951 Commercial real estate, non-owner occupied: Pass and Watch $ 21,865 $ 175,197 $ 208,613 $ 153,439 $ 145,528 $ 419,415 $ — $ 1,124,057 Special Mention — 2,815 3,320 11,918 15,903 13,797 — 47,753 Substandard — — 2,227 — — 22,121 — 24,348 Total commercial real estate, non-owner occupied $ 21,865 $ 178,012 $ 214,160 $ 165,357 $ 161,431 $ 455,333 $ — $ 1,196,158 (in thousands) Term Loans - Amortized Cost by Origination Year Revolving Loans Amortized Cost June 30, 2023 2023 2022 2021 2020 2019 Prior Total Construction: Pass and Watch $ 10,537 $ 45,971 $ 24,061 $ 28,417 $ — $ — $ — $ 108,986 Total construction $ 10,537 $ 45,971 $ 24,061 $ 28,417 $ — $ — $ — $ 108,986 Home equity: Pass and Watch $ — $ — $ — $ — $ — $ 717 $ 84,007 $ 84,724 Substandard — — — — — 441 422 863 Total home equity $ — $ — $ — $ — $ — $ 1,158 $ 84,429 $ 85,587 Other residential: Pass and Watch $ 12,521 $ 20,322 $ 13,818 $ 27,340 $ 21,605 $ 23,040 $ — $ 118,646 Total other residential $ 12,521 $ 20,322 $ 13,818 $ 27,340 $ 21,605 $ 23,040 $ — $ 118,646 Installment and other consumer: Pass and Watch $ 14,426 $ 16,790 $ 11,884 $ 5,182 $ 5,741 $ 10,264 $ 1,024 $ 65,311 Total installment and other consumer $ 14,426 $ 16,790 $ 11,884 $ 5,182 $ 5,741 $ 10,264 $ 1,024 $ 65,311 Gross current period charge-offs $ (6) $ (5) $ — $ (4) $ — $ (1) $ (4) $ (20) Total loans: Pass and Watch $ 91,080 $ 325,029 $ 312,814 $ 258,998 $ 233,691 $ 604,229 $ 152,354 $ 1,978,195 Total Special Mention $ — $ 2,815 $ 19,239 $ 11,918 $ 18,914 $ 24,998 $ 8,656 $ 86,540 Total Substandard $ — $ 274 $ 2,227 $ 1,030 $ — $ 28,029 $ 6,501 $ 38,061 Totals $ 91,080 $ 328,118 $ 334,280 $ 271,946 $ 252,605 $ 657,256 $ 167,511 $ 2,102,796 Total gross current period charge-offs $ (6) $ (5) $ — $ (4) $ (3) $ (1) $ (4) $ (23) (in thousands) Term Loans - Amortized Cost by Origination Year Revolving Loans Amortized Cost December 31, 2022 2022 2021 2020 2019 2018 Prior Total Commercial and industrial: Pass and Watch $ 15,349 $ 6,679 $ 7,603 $ 19,982 $ 5,362 $ 24,954 $ 84,655 $ 164,584 Special Mention 275 — — 2,272 3,836 — 402 6,785 Substandard — — 1,252 — — 625 301 2,178 Total commercial and industrial $ 15,624 $ 6,679 $ 8,855 $ 22,254 $ 9,198 $ 25,579 $ 85,358 $ 173,547 Commercial real estate, owner-occupied: Pass and Watch $ 54,188 $ 52,080 $ 40,369 $ 44,798 $ 29,856 $ 104,377 $ — $ 325,668 Special Mention — 16,199 — 304 5,255 4,493 — 26,251 Substandard — — — 1,160 — 1,699 — 2,859 Doubtful — — 99 — — — — 99 Total commercial real estate, owner-occupied $ 54,188 $ 68,279 $ 40,468 $ 46,262 $ 35,111 $ 110,569 $ — $ 354,877 Commercial real estate, non-owner occupied: Pass and Watch $ 177,822 $ 211,228 $ 155,278 $ 160,670 $ 129,166 $ 308,509 $ 57 $ 1,142,730 Special Mention — 1,172 12,097 3,934 678 9,290 — 27,171 Substandard — 2,264 — — — 19,724 — 21,988 Total commercial real estate, non-owner occupied $ 177,822 $ 214,664 $ 167,375 $ 164,604 $ 129,844 $ 337,523 $ 57 $ 1,191,889 Construction: Pass and Watch $ 49,262 $ 19,393 $ 28,861 $ 7,745 $ 9,112 $ — $ — $ 114,373 Total construction $ 49,262 $ 19,393 $ 28,861 $ 7,745 $ 9,112 $ — $ — $ 114,373 Home equity: Pass and Watch $ — $ — $ — $ — $ — $ 883 $ 86,971 $ 87,854 Substandard — — — — — 480 414 894 Total home equity $ — $ — $ — $ — $ — $ 1,363 $ 87,385 $ 88,748 Other residential: Pass and Watch $ 21,154 $ 14,547 $ 29,018 $ 21,890 $ 11,064 $ 14,450 $ — $ 112,123 Total other residential $ 21,154 $ 14,547 $ 29,018 $ 21,890 $ 11,064 $ 14,450 $ — $ 112,123 Installment and other consumer: Pass and Watch $ 20,054 $ 13,022 $ 5,727 $ 6,492 $ 4,181 $ 6,478 $ 944 $ 56,898 Substandard — — — — — 91 — 91 Total installment and other consumer $ 20,054 $ 13,022 $ 5,727 $ 6,492 $ 4,181 $ 6,569 $ 944 $ 56,989 Total loans: Pass and Watch $ 337,829 $ 316,949 $ 266,856 $ 261,577 $ 188,741 $ 459,651 $ 172,627 $ 2,004,230 Total Special Mention $ 275 $ 17,371 $ 12,097 $ 6,510 $ 9,769 $ 13,783 $ 402 $ 60,207 Total Substandard $ — $ 2,264 $ 1,252 $ 1,160 $ — $ 22,619 $ 715 $ 28,010 Total Doubtful $ — $ — $ 99 $ — $ — $ — $ — $ 99 Totals $ 338,104 $ 336,584 $ 280,304 $ 269,247 $ 198,510 $ 496,053 $ 173,744 $ 2,092,546
Schedule of Past Due Financing Receivables	The following table shows the amortized cost of loans by class, payment aging and non-accrual status as of June 30, 2023 and December 31, 2022. Loan Aging Analysis by Class (in thousands) Commercial and industrial Commercial real estate, owner-occupied Commercial real estate, non-owner occupied Construction Home equity Other residential Installment and other consumer Total June 30, 2023 30-59 days past due $ — $ — $ 371 $ — $ 124 $ — $ 51 $ 546 60-89 days past due 436 — — — 91 — 1 528 90 days or more past due — 164 906 — 218 — — 1,288 Total past due 436 164 1,277 — 433 — 52 2,362 Current 182,721 344,787 1,194,881 108,986 85,154 118,646 65,259 2,100,434 Total loans 1 $ 183,157 $ 344,951 $ 1,196,158 $ 108,986 $ 85,587 $ 118,646 $ 65,311 $ 2,102,796 Non-accrual loans 2 $ — $ 457 $ 906 $ — $ 749 $ — $ — $ 2,112 Non-accrual loans with no allowance $ — $ 457 $ 906 $ — $ 749 $ — $ — $ 2,112 December 31, 2022 30-59 days past due $ 3 $ — $ — $ — $ 319 $ 93 $ 5 $ 420 60-89 days past due — — — — 244 — — 244 90 days or more past due 264 — — — 414 — — 678 Total past due 267 — — — 977 93 5 1,342 Current 173,280 354,877 1,191,889 114,373 87,771 112,030 56,984 2,091,204 Total loans 1 $ 173,547 $ 354,877 $ 1,191,889 $ 114,373 $ 88,748 $ 112,123 $ 56,989 $ 2,092,546 Non-accrual loans 2 $ — $ 1,563 $ — $ — $ 778 $ — $ 91 $ 2,432 Non-accrual loans with no allowance $ — $ 1,563 $ — $ — $ 778 $ — $ 91 $ 2,432 1 There were no non-performing loans past due more than ninety days and accruing interest as of June 30, 2023 and December 31, 2022.
Schedule of Collateral Dependent Loans	The following table presents the amortized cost basis of individually analyzed collateral-dependent loans, which are all on non-accrual status, by class at June 30, 2023 and December 31, 2022. Amortized Cost by Collateral Type (in thousands) Commercial Real Estate Residential Real Estate Other Total 1 Allowance for Credit Losses June 30, 2023 Commercial real estate, owner-occupied $ 457 $ — $ — $ 457 $ — Commercial real estate, non-owner occupied 906 — — 906 — Home equity — 749 — 749 — Total $ 1,363 $ 749 $ — $ 2,112 $ — December 31, 2022 Commercial real estate, owner-occupied $ 1,563 $ — $ — $ 1,563 $ — Home equity — 778 — 778 — Installment and other consumer — — 91 91 — Total $ 1,563 $ 778 $ 91 $ 2,432 $ — 1 There were no collateral-dependent residential real estate mortgage loans in process of foreclosure or in substance repossessed at June 30, 2023 or December 31, 2022. The weighted average loan-to-value of collateral dependent loans was approximately 40% at June 30, 2023 and 42% at December 31, 2022.
Schedule of Allowance for Credit Losses on Financing Receivables	The following table presents the details of the allowance for credit losses on loans segregated by loan portfolio segments as of June 30, 2023 and December 31, 2022 . Allocation of the Allowance for Credit Losses on Loans (in thousands) Commercial and industrial Commercial real estate, owner-occupied Commercial real estate, non-owner occupied Construction Home equity Other residential Installment and other consumer Unallocated Total June 30, 2023 Modeled expected credit losses $ 1,100 $ 1,329 $ 7,441 $ 195 $ 486 $ 558 $ 609 $ — $ 11,718 Qualitative adjustments 711 1,260 5,760 1,747 75 40 331 2,169 12,093 Specific allocations 20 — — — — 1 — — 21 Total $ 1,831 $ 2,589 $ 13,201 $ 1,942 $ 561 $ 599 $ 940 $ 2,169 $ 23,832 December 31, 2022 Modeled expected credit losses $ 1,079 $ 1,497 $ 7,937 $ 453 $ 504 $ 571 $ 610 $ — $ 12,651 Qualitative adjustments 706 990 4,739 1,484 54 24 258 2,068 10,323 Specific allocations 9 — — — — — — — 9 Total $ 1,794 $ 2,487 $ 12,676 $ 1,937 $ 558 $ 595 $ 868 $ 2,068 $ 22,983 The following table discloses activity in the allowance for credit losses on loans for the periods presented. Allowance for Credit Losses on Loans Rollforward (in thousands) Commercial and industrial Commercial real estate, owner-occupied Commercial real estate, non-owner occupied Construction Home equity Other residential Installment and other consumer Unallocated Total Three months ended June 30, 2023 Beginning balance $ 1,941 $ 2,640 $ 12,701 $ 2,019 $ 538 $ 577 $ 882 $ 2,032 $ 23,330 (Reversal) Provision (111) (51) 500 (86) 23 22 66 137 500 (Charge-offs) — — — — — — (9) — (9) Recoveries 1 — — 9 — — 1 — 11 Ending balance $ 1,831 $ 2,589 $ 13,201 $ 1,942 $ 561 $ 599 $ 940 $ 2,169 $ 23,832 Three months ended June 30, 2022 Beginning balance $ 1,784 $ 2,622 $ 12,301 $ 1,717 $ 549 $ 628 $ 641 $ 2,305 $ 22,547 (Reversal) Provision (89) (5) 138 12 (19) (43) 112 (106) — (Charge-offs) — — — — — — (20) — (20) Recoveries 4 — — 8 — — — — 12 Ending balance $ 1,699 $ 2,617 $ 12,439 $ 1,737 $ 530 $ 585 $ 733 $ 2,199 $ 22,539 Allowance for Credit Losses on Loans Rollforward (in thousands) Commercial and industrial Commercial real estate, owner-occupied Commercial real estate, investor Construction Home equity Other residential Installment and other consumer Unallocated Total Six months ended June 30, 2023 Beginning balance $ 1,794 $ 2,487 $ 12,676 $ 1,937 $ 558 $ 595 $ 868 $ 2,068 $ 22,983 Provision (reversal) 36 102 525 (12) 3 4 91 101 850 Charge-offs (3) — — — — — (20) — (23) Recoveries 4 — — 17 — — 1 — 22 Ending balance $ 1,831 $ 2,589 $ 13,201 $ 1,942 $ 561 $ 599 $ 940 $ 2,169 $ 23,832 Six months ended June 30, 2022 Beginning balance $ 1,709 $ 2,776 $ 12,739 $ 1,653 $ 595 $ 644 $ 621 $ 2,286 $ 23,023 (Reversal) Provision (17) (159) (300) 68 (65) (59) 134 (87) (485) Charge-offs — — — — — — (22) — (22) Recoveries 7 — — 16 — — — — 23 Ending balance $ 1,699 $ 2,617 $ 12,439 $ 1,737 $ 530 $ 585 $ 733 $ 2,199 $ 22,539

Short-Term Borrowings and Oth_2

Short-Term Borrowings and Other Obligations (Tables)	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Schedule of Debt	Outstanding balances and weighted average interest rates on short-term borrowings and other obligations as of June 30, 2023 and December 31, 2022 are summarized in the following table. June 30, 2023 December 31, 2022 (dollars in thousands) Outstanding Balance Weighted Outstanding Balance Weighted Average Rate FHLB - short-term borrowings $ 292,200 5.28 % $ 112,000 4.65 % Federal funds lines of credit — — % — — % FRBSF - federal funds purchased — — % — — % FRBSF - short-term borrowings under the BTFP — — % — — % Other obligations (finance leases) 372 1.97 % 439 1.86 % Total short-term borrowings and other obligations $ 292,572 5.28 % $ 112,439 4.64 %

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of Undrawn Loan Commitments and Standby Letters of Credit	The contractual amount of unfunded loan commitments and standby letters of credit not reflected in the consolidated statements of condition are as follows: (in thousands) June 30, 2023 December 31, 2022 Commercial lines of credit $ 236,895 $ 292,204 Revolving home equity lines 219,144 218,907 Undisbursed construction loans 22,683 43,179 Personal and other lines of credit 9,701 10,842 Standby letters of credit 1,157 1,738 Total unfunded loan commitments and standby letters of credit $ 489,580 $ 566,870
Schedule of Operating and Finance Lease Right-of-Use Assets and Lease Liabilities	The following table shows the balances of operating and finance lease right-of-use assets and lease liabilities. (in thousands) June 30, 2023 December 31, 2022 Operating leases: Operating lease right-of-use assets $ 22,739 $ 24,821 Operating lease liabilities $ 25,220 $ 26,639 Finance leases: Finance lease right-of-use assets $ 608 $ 616 Accumulated amortization (245) (187) Finance lease right-of-use assets, net 1 $ 363 $ 429 Finance lease liabilities 2 $ 372 $ 439 1 Included in premises and equipment in the consolidated statements of condition. 2 Included in borrowings and other obligations in the consolidated statements of condition.
Schedule of Components of Operating and Finance Lease Cost	The following table shows supplemental disclosures of noncash investing and financing activities for the periods presented. Six months ended (in thousands) June 30, 2023 June 30, 2022 Right-of-use assets obtained in exchange for operating lease liabilities, net of tenant improvement allowances received $ 572 $ 1,124 Right-of-use assets obtained in exchange for finance lease liabilities $ 7 $ — The following table shows components of operating and finance lease cost. Three months ended Six months ended (in thousands) June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Operating lease cost $ 1,322 $ 1,295 $ 2,932 $ 2,579 Variable lease cost — — — — Total operating lease cost 1 $ 1,322 $ 1,295 $ 2,932 $ 2,579 Finance lease cost: Amortization of right-of-use assets 2 $ 37 $ 31 $ 74 $ 62 Interest on finance lease liabilities 3 2 4 1 Total finance lease cost $ 39 $ 31 $ 78 $ 63 Total lease cost $ 1,361 $ 1,326 $ 3,010 $ 2,642 1 Included in occupancy and equipment expense in the consolidated statements of comprehensive income. 2 Included in depreciation and amortization in the consolidated statements of comprehensive income. 3 Included in interest on borrowings and other obligations in the consolidated statements of comprehensive income.
Schedule of Operating Lease Liability Maturities	The following table shows the future minimum lease payments, weighted average remaining lease terms, and weighted average discount rates under operating and finance lease arrangements as of June 30, 2023. The discount rates used to calculate the present value of lease liabilities were based on the collateralized FHLB borrowing rates that were commensurate with lease terms and minimum payments on the lease commencement date. (in thousands) June 30, 2023 Year Operating Leases Finance Leases 2023 $ 2,587 $ 78 2024 4,753 155 2025 4,112 108 2026 3,373 37 2027 3,097 5 Thereafter 10,017 — Total minimum lease payments 27,939 383 Amounts representing interest (present value discount) (2,719) (11) Present value of net minimum lease payments (lease liability) $ 25,220 $ 372 Weighted average remaining term (in years) 7.5 2.6 Weighted average discount rate 2.36 % 1.97 %
Schedule of Finance Lease Liability Maturities	The following table shows the future minimum lease payments, weighted average remaining lease terms, and weighted average discount rates under operating and finance lease arrangements as of June 30, 2023. The discount rates used to calculate the present value of lease liabilities were based on the collateralized FHLB borrowing rates that were commensurate with lease terms and minimum payments on the lease commencement date. (in thousands) June 30, 2023 Year Operating Leases Finance Leases 2023 $ 2,587 $ 78 2024 4,753 155 2025 4,112 108 2026 3,373 37 2027 3,097 5 Thereafter 10,017 — Total minimum lease payments 27,939 383 Amounts representing interest (present value discount) (2,719) (11) Present value of net minimum lease payments (lease liability) $ 25,220 $ 372 Weighted average remaining term (in years) 7.5 2.6 Weighted average discount rate 2.36 % 1.97 %

Derivative Financial Instrume_2

Derivative Financial Instruments and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	Information on our derivatives follows: Asset Derivatives Liability Derivatives (in thousands) June 30, December 31, 2022 June 30, December 31, 2022 Fair value hedges: Interest rate contracts notional amount $ 11,535 $ 12,046 $ — $ — Interest rate contracts fair value 1 $ 631 $ 602 $ — $ — 1 See Note 3, Fair Value of Assets and Liabilities, for valuation methodology. The following table presents the carrying amount and associated cumulative basis adjustment related to the application of fair value hedge accounting that is included in the carrying amount of hedged assets as of June 30, 2023 and December 31, 2022. Carrying Amounts of Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Loans (in thousands) June 30, 2023 December 31, 2022 June 30, 2023 December 31, 2022 Loans $ 10,786 $ 11,319 $ (749) $ (726)
Schedule of Derivative Instruments, Losses in Statement of Financial Performance	The following table presents the net gains (losses) recognized in interest income on loans on the consolidated statements of comprehensive income (loss) related to our derivatives designated as fair value hedges. Three months ended Six months ended (in thousands) June 30, 2023 June 30, 2022 June 30, 2023 June 30, 2022 Interest and fees on loans 1 $ 24,579 $ 23,334 $ 48,837 $ 47,011 Increase (decrease) in fair value of designated interest rate swaps due to LIBOR interest rate movements $ 250 $ 430 $ 29 $ 1,187 Receivable (payment) on interest rate swaps 66 (65) 118 (150) (Decrease) increase in fair value hedging adjustment of hedged loans (243) (428) (23) (1,180) Decrease in value of yield maintenance agreement (2) (2) (4) (5) Net gain (loss) on fair value hedging relationships recognized in interest income $ 71 $ (65) $ 120 $ (148) 1 Represents the income line item in the statement of comprehensive income in which the effects of fair value hedges are recorded.
Schedule of Offsetting Liabilities	Information on financial instruments that are eligible for offset in the consolidated statements of condition follows: Offsetting of Financial Assets and Derivative Assets Gross Amounts Net Amounts of Gross Amounts Not Offset in Gross Amounts Offset in the Assets Presented the Statements of Condition of Recognized Statements of in the Statements Financial Cash Collateral ( in thousands) Assets 1 Condition of Condition 1 Instruments Received Net Amount June 30, 2023 Counterparty $ 631 $ — $ 631 $ — $ — $ 631 December 31, 2022 Counterparty $ 602 $ — $ 602 $ — $ — $ 602 Offsetting of Financial Liabilities and Derivative Liabilities 1 Amounts exclude accrued interest on swaps.

Basis of Presentation - Reconci

Basis of Presentation - Reconciliation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Weighted average basic shares outstanding (in shares)	16,009	15,970	15,921	15,990	15,898
Potentially dilutive common shares related to:
Stock options (in shares)	0		24	7	38
Unvested restricted stock awards (in shares)	7		10	11	14
Weighted average diluted shares outstanding (in shares)	16,016	15,999	15,955	16,008	15,950
Net income	$ 4,551	$ 9,440	$ 11,066	$ 13,991	$ 21,531
Basic EPS (in dollars per share)	$ 0.28	$ 0.59	$ 0.70	$ 0.88	$ 1.35
Diluted EPS (in dollars per share)	$ 0.28	$ 0.59	$ 0.69	$ 0.87	$ 1.35
Weighted average anti-dilutive shares not included in the calculation of diluted EPS (in shares)	389		230	358	167

Recently Adopted and Issued A_2

Recently Adopted and Issued Accounting Standards (Details) $ in Millions	Jun. 30, 2023 USD ($) contract
Accounting Policies [Abstract]
Number of interest rate swap contracts | contract	4
Derivative, notional amount | $	$ 11.5

Fair Value of Assets and Liab_3

Fair Value of Assets and Liabilities - Recorded on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 770,942	$ 802,096
SBA-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	36,649	44,355
Debentures of government- sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	135,868	135,106
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	10,334	10,269
Obligations of state and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	102,916	102,123
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	34,043	33,276
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,309	1,462
Carrying Value | Assets and liabilities at fair value measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)	631	602
Carrying Value | Assets and liabilities at fair value measured on a recurring basis | Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	449,823	475,505
Carrying Value | Assets and liabilities at fair value measured on a recurring basis | SBA-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	36,649	44,355
Carrying Value | Assets and liabilities at fair value measured on a recurring basis | Debentures of government- sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	135,868	135,106
Carrying Value | Assets and liabilities at fair value measured on a recurring basis | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	10,334	10,269
Carrying Value | Assets and liabilities at fair value measured on a recurring basis | Obligations of state and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	102,916	102,123
Carrying Value | Assets and liabilities at fair value measured on a recurring basis | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	34,043	33,276
Carrying Value | Assets and liabilities at fair value measured on a recurring basis | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,309	1,462
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)	631	602
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	449,823	475,505
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies | Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | SBA-backed securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | SBA-backed securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	36,649	44,355
Fair Value | Assets and liabilities at fair value measured on a recurring basis | SBA-backed securities | Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Debentures of government- sponsored agencies | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Debentures of government- sponsored agencies | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	135,868	135,106
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Debentures of government- sponsored agencies | Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | U.S. Treasury securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	10,334	10,269
Fair Value | Assets and liabilities at fair value measured on a recurring basis | U.S. Treasury securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | U.S. Treasury securities | Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Obligations of state and political subdivisions | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Obligations of state and political subdivisions | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	102,916	102,123
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Obligations of state and political subdivisions | Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Corporate bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Corporate bonds | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	34,043	33,276
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Corporate bonds | Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Asset-backed securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Asset-backed securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,309	1,462
Fair Value | Assets and liabilities at fair value measured on a recurring basis | Asset-backed securities | Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 0	$ 0

Fair Value of Assets and Liab_4

Fair Value of Assets and Liabilities - Narrative (Details)	6 Months Ended
	Jun. 30, 2023 USD ($) security	Jun. 30, 2022 USD ($)	Dec. 31, 2022 security
Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit loss expense on held-to-maturity securities | $	$ 0	$ 0
Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of securities | security	0		0

Fair Value of Assets and Liab_5

Fair Value of Assets and Liabilities - Fair Value Assets Measured on Non-recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 770,942	$ 802,096
Assets and liabilities at fair value measured on a recurring basis | Other real estate owned | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	415	455
Assets and liabilities at fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other real estate owned | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Assets and liabilities at fair value measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Other real estate owned | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Assets and liabilities at fair value measured on a recurring basis | Significant Unobservable Inputs  (Level 3) | Other real estate owned | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 415	$ 455

Fair Value of Assets and Liab_6

Fair Value of Assets and Liabilities - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financial assets (recorded at amortized cost):
Investment securities held-to-maturity	$ 826,067	$ 845,239
Level 1 | Carrying Value
Financial assets (recorded at amortized cost):
Cash and cash equivalents	39,657	45,424
Level 1 | Fair Value
Financial assets (recorded at amortized cost):
Cash and cash equivalents	39,657	45,424
Level 2 | Carrying Value
Financial assets (recorded at amortized cost):
Investment securities held-to-maturity	946,808	972,207
Interest receivable	12,810	13,069
Financial liabilities (recorded at amortized cost):
Time deposits	203,463	119,030
Federal Home Loan Bank short-term borrowings	292,200	112,000
Interest payable	868	75
Level 2 | Fair Value
Financial assets (recorded at amortized cost):
Investment securities held-to-maturity	826,067	845,239
Interest receivable	12,810	13,069
Financial liabilities (recorded at amortized cost):
Time deposits	204,679	118,333
Federal Home Loan Bank short-term borrowings	292,200	112,000
Interest payable	868	75
Level 3 | Carrying Value
Financial assets (recorded at amortized cost):
Loans, net	2,078,964	2,069,563
Level 3 | Fair Value
Financial assets (recorded at amortized cost):
Loans, net	$ 1,985,481	$ 1,993,866

Investment Securities - Held-to

Investment Securities - Held-to-Maturity Amortized Cost and Fair Value (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	$ 946,808,000	$ 972,207,000
Allowance for Credit Losses	0	0
Net Carrying Amount	946,808,000	972,207,000
Held-to-maturity, gross unrealized gains	512,000	70,000
Held-to-maturity, gross unrealized losses	(121,253,000)	(127,038,000)
Held to maturity, fair value	826,067,000	845,239,000
Accrued interest	3,600,000	3,700,000
MBS pass-through securities issued by FHLMC, FNMA and GNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	316,968,000	331,281,000
Allowance for Credit Losses	0	0
Net Carrying Amount	316,968,000	331,281,000
Held-to-maturity, gross unrealized gains	0	0
Held-to-maturity, gross unrealized losses	(48,904,000)	(50,147,000)
Held to maturity, fair value	268,064,000	281,134,000
CMOs issued by FHLMC
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	231,217,000	235,971,000
Allowance for Credit Losses	0	0
Net Carrying Amount	231,217,000	235,971,000
Held-to-maturity, gross unrealized gains	177,000	59,000
Held-to-maturity, gross unrealized losses	(27,759,000)	(29,503,000)
Held to maturity, fair value	203,635,000	206,527,000
CMOs issued by FNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	106,894,000	111,904,000
Allowance for Credit Losses	0	0
Net Carrying Amount	106,894,000	111,904,000
Held-to-maturity, gross unrealized gains	113,000	0
Held-to-maturity, gross unrealized losses	(6,436,000)	(5,419,000)
Held to maturity, fair value	100,571,000	106,485,000
CMOs issued by GNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	51,511,000	52,356,000
Allowance for Credit Losses	0	0
Net Carrying Amount	51,511,000	52,356,000
Held-to-maturity, gross unrealized gains	216,000	11,000
Held-to-maturity, gross unrealized losses	(3,271,000)	(3,076,000)
Held to maturity, fair value	48,456,000	49,291,000
SBA-backed securities
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	1,977,000	2,372,000
Allowance for Credit Losses	0	0
Net Carrying Amount	1,977,000	2,372,000
Held-to-maturity, gross unrealized gains	0	0
Held-to-maturity, gross unrealized losses	(130,000)	(133,000)
Held to maturity, fair value	1,847,000	2,239,000
Debentures of government- sponsored agencies
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	145,973,000	145,823,000
Allowance for Credit Losses	0	0
Net Carrying Amount	145,973,000	145,823,000
Held-to-maturity, gross unrealized gains	0	0
Held-to-maturity, gross unrealized losses	(24,087,000)	(26,467,000)
Held to maturity, fair value	121,886,000	119,356,000
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	62,268,000	62,500,000
Allowance for Credit Losses	0	0
Net Carrying Amount	62,268,000	62,500,000
Held-to-maturity, gross unrealized gains	6,000	0
Held-to-maturity, gross unrealized losses	(9,029,000)	(10,741,000)
Held to maturity, fair value	53,245,000	51,759,000
Corporate bonds
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	30,000,000	30,000,000
Allowance for Credit Losses	0	0
Net Carrying Amount	30,000,000	30,000,000
Held-to-maturity, gross unrealized gains	0	0
Held-to-maturity, gross unrealized losses	(1,637,000)	(1,552,000)
Held to maturity, fair value	$ 28,363,000	$ 28,448,000

Investment Securities - Narrati

Investment Securities - Narrative (Details)		1 Months Ended		6 Months Ended
	Jul. 13, 2023 USD ($)	Jul. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2023 USD ($) security	Jun. 30, 2022 USD ($)	Jul. 07, 2023 USD ($)	Dec. 31, 2022 USD ($) security
Debt Securities, Available-for-sale [Line Items]
Held-to-maturity, allowance for credit Loss				$ 0			$ 0
Transfer of securities from available-for-sale to held-to-maturity at fair value			$ 357,500,000
Net unrealized pre-tax loss				85,293,000			$ 90,543,000
Proceeds from sale of available-for-sale securities				$ 0	$ 0
Number of investment securities in unrealized loss position | security				396			407
Number of investment securities in unrealized loss position longer than 12 months | security				373
Number of investment securities in unrealized loss position less than 12 months | security				23
Debt securities, available-for-sale unrealized loss position, allowance for credit loss				$ 0			$ 0
Derivative, notional amount				11,500,000
Visa Inc. Class B common stock
Debt Securities, Available-for-sale [Line Items]
Carrying value of securities carried at cost				0			$ 0
Subsequent event
Debt Securities, Available-for-sale [Line Items]
Proceeds from sale of available-for-sale securities		$ 82,700,000
Debt securities, available for sale loss		$ 2,800,000
Subsequent event | Interest rate swap
Debt Securities, Available-for-sale [Line Items]
Derivative, notional amount						$ 101,800,000
Subsequent event | Visa Inc. Class B common stock
Debt Securities, Available-for-sale [Line Items]
Carrying value of securities carried at cost	$ 0
Equity securities, FV-NI gain	$ 2,800,000
Accumulated Other Comprehensive Income (Loss), Net of Tax
Debt Securities, Available-for-sale [Line Items]
Net unrealized pre-tax loss				$ 14,800,000

Investment Securities - Schedul

Investment Securities - Schedule of Bond Ratings For Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	$ 946,808	$ 972,207
Obligations of state and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	62,268	62,500
Corporate bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	30,000	30,000
Moody's And/Or Standard & Poor's AAA Rating | Obligations of state and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	42,783	42,986
Moody's And/Or Standard & Poor's AAA Rating | Corporate bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	0	0
Moody's And/Or Standard & Poor's AA Rating | Obligations of state and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	19,485	19,514
Moody's And/Or Standard & Poor's AA Rating | Corporate bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	0	0
Moody's And/Or Standard & Poor's A Rating | Obligations of state and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	0	0
Moody's And/Or Standard & Poor's A Rating | Corporate bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt securities, held-to-maturity	$ 30,000	$ 30,000

Investment Securities - Availab

Investment Securities - Available-for-Sale Securities Amortized Cost and Fair Value (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	$ 856,166,000	$ 892,605,000
Available-for-sale, gross unrealized gains	69,000	34,000
Available-for-sale, gross unrealized losses	(85,293,000)	(90,543,000)
Allowance for Credit Losses	0	0
Fair Value	$ 770,942,000	$ 802,096,000
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Interest receivable and other assets	Interest receivable and other assets
Accrued interest	$ 3,100,000	$ 3,200,000
MBS pass-through securities issued by FHLMC, FNMA and GNMA
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	102,420,000	109,736,000
Available-for-sale, gross unrealized gains	2,000	3,000
Available-for-sale, gross unrealized losses	(11,758,000)	(12,133,000)
Allowance for Credit Losses	0	0
Fair Value	90,664,000	97,606,000
CMOs issued by FHLMC
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	333,374,000	347,437,000
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	(32,162,000)	(33,682,000)
Allowance for Credit Losses	0	0
Fair Value	301,212,000	313,755,000
CMOs issued by FNMA
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	32,916,000	36,172,000
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	(3,816,000)	(3,852,000)
Allowance for Credit Losses	0	0
Fair Value	29,100,000	32,320,000
CMOs issued by GNMA
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	32,193,000	35,120,000
Available-for-sale, gross unrealized gains	31,000	0
Available-for-sale, gross unrealized losses	(3,377,000)	(3,296,000)
Allowance for Credit Losses	0	0
Fair Value	28,847,000	31,824,000
SBA-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	39,824,000	47,724,000
Available-for-sale, gross unrealized gains	0	2,000
Available-for-sale, gross unrealized losses	(3,175,000)	(3,371,000)
Allowance for Credit Losses	0	0
Fair Value	36,649,000	44,355,000
Debentures of government- sponsored agencies
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	149,129,000	149,114,000
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	(13,261,000)	(14,008,000)
Allowance for Credit Losses	0	0
Fair Value	135,868,000	135,106,000
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	11,914,000	11,904,000
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	(1,580,000)	(1,635,000)
Allowance for Credit Losses	0
Fair Value	10,334,000	10,269,000
Obligations of state and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	116,040,000	116,855,000
Available-for-sale, gross unrealized gains	36,000	29,000
Available-for-sale, gross unrealized losses	(13,160,000)	(14,761,000)
Allowance for Credit Losses	0	0
Fair Value	102,916,000	102,123,000
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	36,991,000	36,990,000
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	(2,948,000)	(3,714,000)
Allowance for Credit Losses	0	0
Fair Value	34,043,000	33,276,000
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, amortized cost	1,365,000	1,553,000
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	(56,000)	(91,000)
Allowance for Credit Losses	0	0
Fair Value	$ 1,309,000	$ 1,462,000

Investment Securities - Maturit

Investment Securities - Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Held-to-maturity Securities, Amortized Cost
Within one year	$ 0	$ 450
After one but within five years	89,625	87,418
After five years through ten years	266,785	262,072
After ten years	590,398	622,267
Total	946,808	972,207
Held-to-maturity Securities, Fair Value
Within one year	0	446
After one but within five years	85,060	83,663
After five years through ten years	227,818	222,280
After ten years	513,189	538,850
Total	826,067	845,239
Available-for-sale Securities, Amortized Cost
Within one year	26,665	1,254
After one but within five years	354,735	335,813
After five years through ten years	130,738	185,997
After ten years	344,028	369,541
Total	856,166	892,605
Available-for-sale Securities, Fair Value
Within one year	25,344	1,239
After one but within five years	324,368	307,843
After five years through ten years	117,530	166,273
After ten years	303,700	326,741
Total	$ 770,942	$ 802,096

Investment Securities - Pledged

Investment Securities - Pledged and Transferred Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale securities pledged as collateral	$ 868,041	$ 238,570
State of California
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale securities pledged as collateral	200,564	236,833
Public deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale securities pledged as collateral	199,327	235,587
Trust deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale securities pledged as collateral	672	677
Internal checking account
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale securities pledged as collateral	565	569
Bankruptcy trustee deposits
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale securities pledged as collateral	1,594	1,737
FHLB Securities Backed Credit Program
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale securities pledged as collateral	391,668	0
Federal Reserve Bank Term Funding Program
Financial Instruments Owned and Pledged as Collateral [Line Items]
Available-for-sale securities pledged as collateral	$ 274,215	$ 0

Investment Securities - Unreali

Investment Securities - Unrealized Loss Positions (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 continuous months	$ 135,529	$ 359,313
Greater than or equal to 12 continuous months	648,324	459,948
Total Securities in a loss position	783,853	819,261
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 continuous months	(6,011)	(23,733)
Greater than or equal to 12 continuous months	(115,242)	(103,305)
Held-to-maturity, gross unrealized losses	(121,253)	(127,038)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	9,299	354,695
Available-for-sale, greater than 12 continuous months, fair value	749,563	443,274
Available-for-sale, total securities in a loss position, fair value	758,862	797,969
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	(232)	(33,887)
Available-for-sale, greater than 12 continuous months, unrealized loss	(85,061)	(56,656)
Available-for-sale, total securities in a loss position, unrealized loss	(85,293)	(90,543)
Marketable Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Marketable securities, less than 12 continuous months, fair value	144,828	714,008
Marketable securities, greater than 12 continuous months, fair value	1,397,887	903,222
Marketable securities, total securities in a loss position, fair value	1,542,715	1,617,230
Marketable Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Marketable securities, less than 12 continuous months, unrealized loss	(6,243)	(57,620)
Marketable securities, greater than 12 continuous months, unrealized loss	(200,303)	(159,961)
Marketable securities, total securities in a loss position, unrealized loss	(206,546)	(217,581)
MBS pass-through securities issued by FHLMC, FNMA and GNMA
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 continuous months	4,178	62,627
Greater than or equal to 12 continuous months	263,886	218,507
Total Securities in a loss position	268,064	281,134
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 continuous months	(132)	(5,960)
Greater than or equal to 12 continuous months	(48,772)	(44,187)
Held-to-maturity, gross unrealized losses	(48,904)	(50,147)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	4,422	44,630
Available-for-sale, greater than 12 continuous months, fair value	85,498	52,235
Available-for-sale, total securities in a loss position, fair value	89,920	96,865
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	(177)	(4,501)
Available-for-sale, greater than 12 continuous months, unrealized loss	(11,581)	(7,632)
Available-for-sale, total securities in a loss position, unrealized loss	(11,758)	(12,133)
CMOs issued by FHLMC
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 continuous months	31,915	78,144
Greater than or equal to 12 continuous months	162,369	113,796
Total Securities in a loss position	194,284	191,940
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 continuous months	(1,171)	(5,874)
Greater than or equal to 12 continuous months	(26,588)	(23,629)
Held-to-maturity, gross unrealized losses	(27,759)	(29,503)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	12	169,760
Available-for-sale, greater than 12 continuous months, fair value	301,200	143,995
Available-for-sale, total securities in a loss position, fair value	301,212	313,755
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	0	(15,144)
Available-for-sale, greater than 12 continuous months, unrealized loss	(32,162)	(18,538)
Available-for-sale, total securities in a loss position, unrealized loss	(32,162)	(33,682)
CMOs issued by FNMA
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 continuous months	43,167	106,485
Greater than or equal to 12 continuous months	39,161	0
Total Securities in a loss position	82,328	106,485
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 continuous months	(2,064)	(5,419)
Greater than or equal to 12 continuous months	(4,372)	0
Held-to-maturity, gross unrealized losses	(6,436)	(5,419)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	37	4,790
Available-for-sale, greater than 12 continuous months, fair value	29,063	27,529
Available-for-sale, total securities in a loss position, fair value	29,100	32,319
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	(1)	(235)
Available-for-sale, greater than 12 continuous months, unrealized loss	(3,815)	(3,617)
Available-for-sale, total securities in a loss position, unrealized loss	(3,816)	(3,852)
CMOs issued by GNMA
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 continuous months	27,024	27,570
Greater than or equal to 12 continuous months	9,902	10,331
Total Securities in a loss position	36,926	37,901
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 continuous months	(1,895)	(1,676)
Greater than or equal to 12 continuous months	(1,376)	(1,400)
Held-to-maturity, gross unrealized losses	(3,271)	(3,076)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	0	8,214
Available-for-sale, greater than 12 continuous months, fair value	25,070	23,612
Available-for-sale, total securities in a loss position, fair value	25,070	31,826
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	0	(374)
Available-for-sale, greater than 12 continuous months, unrealized loss	(3,377)	(2,922)
Available-for-sale, total securities in a loss position, unrealized loss	(3,377)	(3,296)
SBA-backed securities
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 continuous months	0	2,239
Greater than or equal to 12 continuous months	1,847	0
Total Securities in a loss position	1,847	2,239
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 continuous months	0	(133)
Greater than or equal to 12 continuous months	(130)	0
Held-to-maturity, gross unrealized losses	(130)	(133)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	29	37,845
Available-for-sale, greater than 12 continuous months, fair value	36,309	6,133
Available-for-sale, total securities in a loss position, fair value	36,338	43,978
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	0	(3,228)
Available-for-sale, greater than 12 continuous months, unrealized loss	(3,175)	(143)
Available-for-sale, total securities in a loss position, unrealized loss	(3,175)	(3,371)
Debentures of government- sponsored agencies
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 continuous months	29,245	38,645
Greater than or equal to 12 continuous months	92,642	80,711
Total Securities in a loss position	121,887	119,356
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 continuous months	(749)	(2,530)
Greater than or equal to 12 continuous months	(23,338)	(23,937)
Held-to-maturity, gross unrealized losses	(24,087)	(26,467)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	0	19,054
Available-for-sale, greater than 12 continuous months, fair value	135,868	116,052
Available-for-sale, total securities in a loss position, fair value	135,868	135,106
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	0	(946)
Available-for-sale, greater than 12 continuous months, unrealized loss	(13,261)	(13,062)
Available-for-sale, total securities in a loss position, unrealized loss	(13,261)	(14,008)
U.S. Treasury securities
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	0	0
Available-for-sale, greater than 12 continuous months, fair value	10,334	10,269
Available-for-sale, total securities in a loss position, fair value	10,334	10,269
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	0	0
Available-for-sale, greater than 12 continuous months, unrealized loss	(1,580)	(1,635)
Available-for-sale, total securities in a loss position, unrealized loss	(1,580)	(1,635)
Obligations of state and political subdivisions
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 continuous months	0	15,155
Greater than or equal to 12 continuous months	50,154	36,603
Total Securities in a loss position	50,154	51,758
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 continuous months	0	(589)
Greater than or equal to 12 continuous months	(9,029)	(10,152)
Held-to-maturity, gross unrealized losses	(9,029)	(10,741)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	4,799	70,402
Available-for-sale, greater than 12 continuous months, fair value	90,869	28,711
Available-for-sale, total securities in a loss position, fair value	95,668	99,113
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	(54)	(9,459)
Available-for-sale, greater than 12 continuous months, unrealized loss	(13,106)	(5,302)
Available-for-sale, total securities in a loss position, unrealized loss	(13,160)	(14,761)
Corporate bonds
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 continuous months	0	28,448
Greater than or equal to 12 continuous months	28,363	0
Total Securities in a loss position	28,363	28,448
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 continuous months	0	(1,552)
Greater than or equal to 12 continuous months	(1,637)	0
Held-to-maturity, gross unrealized losses	(1,637)	(1,552)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	0	0
Available-for-sale, greater than 12 continuous months, fair value	34,043	33,276
Available-for-sale, total securities in a loss position, fair value	34,043	33,276
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	0	0
Available-for-sale, greater than 12 continuous months, unrealized loss	(2,948)	(3,714)
Available-for-sale, total securities in a loss position, unrealized loss	(2,948)	(3,714)
Asset-backed securities
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale, less than 12 continuous months, fair value	0	0
Available-for-sale, greater than 12 continuous months, fair value	1,309	1,462
Available-for-sale, total securities in a loss position, fair value	1,309	1,462
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, less than 12 continuous months, unrealized loss	0	0
Available-for-sale, greater than 12 continuous months, unrealized loss	(56)	(91)
Available-for-sale, total securities in a loss position, unrealized loss	$ (56)	$ (91)

Investment Securities - Non-Mar

Investment Securities - Non-Marketable Securities Included in Other Assets (Details) - USD ($)		6 Months Ended
	Jul. 13, 2023	Jun. 30, 2023	Jun. 30, 2022	Jul. 27, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Federal home loan bank stock, par value (in usd per share)		$ 100
Investments in low income housing tax credit funds		$ 2,300,000			$ 2,500,000
Low income housing tax credits and other tax benefits		300,000
Low income housing amortization expense		252,000
Unfunded commitments for low income housing tax credit funds		346,000
Subsequent event
Schedule of Equity Method Investments [Line Items]
Federal home loan bank, dividend rate percentage				7.75%
Visa Inc. Class B common stock | Subsequent event
Schedule of Equity Method Investments [Line Items]
Equity securities, FV-NI gain	$ 2,800,000
Low-income housing tax credit investment
Schedule of Equity Method Investments [Line Items]
Impairment losses		$ 0	$ 0
Visa Inc. Class B common stock
Schedule of Equity Method Investments [Line Items]
Number of shares of securities carried at cost (in shares)		10,439			10,439
Carrying value of securities carried at cost		$ 0			$ 0
Visa Inc. Class B common stock | Subsequent event
Schedule of Equity Method Investments [Line Items]
Carrying value of securities carried at cost	0
Equity securities, FV-NI gain	$ 2,800,000
Asset Derivatives
Schedule of Equity Method Investments [Line Items]
Federal home loan bank stock		$ 16,700,000			$ 16,700,000

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses on Loans - Schedule of Loans by Class (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, at amortized cost	$ 2,102,796		$ 2,092,546
Allowance for credit losses on loans	(23,832)	$ (23,330)	(22,983)	$ (22,539)	$ (22,547)	$ (23,023)
Total loans, net of allowance for credit losses on loans	2,078,964		2,069,563
Net deferred loan origination costs (fees)	2,400		1,800
Unrecognized purchase discounts on non-PCI loans	2,200		2,600
Financing receivable, accrued interest, net	6,000		6,100
Commercial loans | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, at amortized cost	183,157		173,547
Allowance for credit losses on loans	(1,831)	(1,941)	(1,794)	(1,699)	(1,784)	(1,709)
Commercial real estate loans | Commercial owner-occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, at amortized cost	344,951		354,877
Allowance for credit losses on loans	(2,589)	(2,640)	(2,487)	(2,617)	(2,622)	(2,776)
Commercial real estate loans | Commercial non-owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, at amortized cost	1,196,158		1,191,889
Allowance for credit losses on loans	(13,201)	(12,701)	(12,676)	(12,439)	(12,301)
Commercial real estate loans | Construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, at amortized cost	108,986		114,373
Allowance for credit losses on loans	(1,942)	(2,019)	(1,937)	(1,737)	(1,717)	(1,653)
Residential loans | Home equity
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, at amortized cost	85,587		88,748
Allowance for credit losses on loans	(561)	(538)	(558)	(530)	(549)	(595)
Residential loans | Other residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, at amortized cost	118,646		112,123
Allowance for credit losses on loans	(599)	(577)	(595)	(585)	(628)	(644)
Consumer loans | Installment and other consumer loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans, at amortized cost	65,311		56,989
Allowance for credit losses on loans	$ (940)	$ (882)	$ (868)	$ (733)	$ (641)	$ (621)

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses on Loans - Schedule of Loans by Risk Grade and Origination Year (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	$ 91,080		$ 91,080		$ 338,104
Financing receivable, originated, year two	328,118		328,118		336,584
Financing receivable, originated, year three	334,280		334,280		280,304
Financing receivable, originated, year four	271,946		271,946		269,247
Financing receivable, originated, year five	252,605		252,605		198,510
Prior	657,256		657,256		496,053
Revolving Loans Amortized Cost	167,511		167,511		173,744
Total	2,102,796		2,102,796		2,092,546
Gross current period charge-offs, originated, year one			(6)
Gross current period charge-offs, originated, year two			(5)
Gross current period charge-offs, originated, year three			0
Gross current period charge-offs, originated, year four			(4)
Gross current period charge-offs, originated, year five			(3)
Gross current period charge-offs, originated, prior			(1)
Gross current period charge-offs, originated, Revolving Loans Amortized Cost			(4)
Gross current period charge-offs, originated, total	(9)	$ (20)	(23)	$ (22)
Pass and Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	91,080		91,080		337,829
Financing receivable, originated, year two	325,029		325,029		316,949
Financing receivable, originated, year three	312,814		312,814		266,856
Financing receivable, originated, year four	258,998		258,998		261,577
Financing receivable, originated, year five	233,691		233,691		188,741
Prior	604,229		604,229		459,651
Revolving Loans Amortized Cost	152,354		152,354		172,627
Total	1,978,195		1,978,195		2,004,230
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		275
Financing receivable, originated, year two	2,815		2,815		17,371
Financing receivable, originated, year three	19,239		19,239		12,097
Financing receivable, originated, year four	11,918		11,918		6,510
Financing receivable, originated, year five	18,914		18,914		9,769
Prior	24,998		24,998		13,783
Revolving Loans Amortized Cost	8,656		8,656		402
Total	86,540		86,540		60,207
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		0
Financing receivable, originated, year two	274		274		2,264
Financing receivable, originated, year three	2,227		2,227		1,252
Financing receivable, originated, year four	1,030		1,030		1,160
Financing receivable, originated, year five	0		0		0
Prior	28,029		28,029		22,619
Revolving Loans Amortized Cost	6,501		6,501		715
Total	38,061		38,061		28,010
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one					0
Financing receivable, originated, year two					0
Financing receivable, originated, year three					99
Financing receivable, originated, year four					0
Financing receivable, originated, year five					0
Prior					0
Revolving Loans Amortized Cost					0
Total					99
Commercial loans | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	30,686		30,686		15,624
Financing receivable, originated, year two	11,755		11,755		6,679
Financing receivable, originated, year three	3,726		3,726		8,855
Financing receivable, originated, year four	6,203		6,203		22,254
Financing receivable, originated, year five	19,137		19,137		9,198
Prior	29,592		29,592		25,579
Revolving Loans Amortized Cost	82,058		82,058		85,358
Total	183,157		183,157		173,547
Gross current period charge-offs, originated, year one			0
Gross current period charge-offs, originated, year two			0
Gross current period charge-offs, originated, year three			0
Gross current period charge-offs, originated, year four			0
Gross current period charge-offs, originated, year five			(3)
Gross current period charge-offs, originated, prior			0
Gross current period charge-offs, originated, Revolving Loans Amortized Cost			0
Gross current period charge-offs, originated, total	0	0	(3)	0
Commercial loans | Commercial and industrial | Pass and Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	30,686		30,686		15,349
Financing receivable, originated, year two	11,481		11,481		6,679
Financing receivable, originated, year three	3,726		3,726		7,603
Financing receivable, originated, year four	5,173		5,173		19,982
Financing receivable, originated, year five	16,419		16,419		5,362
Prior	25,287		25,287		24,954
Revolving Loans Amortized Cost	67,323		67,323		84,655
Total	160,095		160,095		164,584
Commercial loans | Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		275
Financing receivable, originated, year two	0		0		0
Financing receivable, originated, year three	0		0		0
Financing receivable, originated, year four	0		0		2,272
Financing receivable, originated, year five	2,718		2,718		3,836
Prior	664		664		0
Revolving Loans Amortized Cost	8,656		8,656		402
Total	12,038		12,038		6,785
Commercial loans | Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		0
Financing receivable, originated, year two	274		274		0
Financing receivable, originated, year three	0		0		1,252
Financing receivable, originated, year four	1,030		1,030		0
Financing receivable, originated, year five	0		0		0
Prior	3,641		3,641		625
Revolving Loans Amortized Cost	6,079		6,079		301
Total	11,024		11,024		2,178
Commercial real estate loans | Commercial owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	1,045		1,045		54,188
Financing receivable, originated, year two	55,268		55,268		68,279
Financing receivable, originated, year three	66,631		66,631		40,468
Financing receivable, originated, year four	39,447		39,447		46,262
Financing receivable, originated, year five	44,691		44,691		35,111
Prior	137,869		137,869		110,569
Revolving Loans Amortized Cost	0		0		0
Total	344,951		344,951		354,877
Gross current period charge-offs, originated, total	0	0	0	0
Commercial real estate loans | Commercial owner-occupied | Pass and Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	1,045		1,045		54,188
Financing receivable, originated, year two	55,268		55,268		52,080
Financing receivable, originated, year three	50,712		50,712		40,369
Financing receivable, originated, year four	39,447		39,447		44,798
Financing receivable, originated, year five	44,398		44,398		29,856
Prior	125,506		125,506		104,377
Revolving Loans Amortized Cost	0		0		0
Total	316,376		316,376		325,668
Commercial real estate loans | Commercial owner-occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		0
Financing receivable, originated, year two	0		0		16,199
Financing receivable, originated, year three	15,919		15,919		0
Financing receivable, originated, year four	0		0		304
Financing receivable, originated, year five	293		293		5,255
Prior	10,537		10,537		4,493
Revolving Loans Amortized Cost	0		0		0
Total	26,749		26,749		26,251
Commercial real estate loans | Commercial owner-occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		0
Financing receivable, originated, year two	0		0		0
Financing receivable, originated, year three	0		0		0
Financing receivable, originated, year four	0		0		1,160
Financing receivable, originated, year five	0		0		0
Prior	1,826		1,826		1,699
Revolving Loans Amortized Cost	0		0		0
Total	1,826		1,826		2,859
Commercial real estate loans | Commercial owner-occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one					0
Financing receivable, originated, year two					0
Financing receivable, originated, year three					99
Financing receivable, originated, year four					0
Financing receivable, originated, year five					0
Prior					0
Revolving Loans Amortized Cost					0
Total					99
Commercial real estate loans | Commercial non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	21,865		21,865		177,822
Financing receivable, originated, year two	178,012		178,012		214,664
Financing receivable, originated, year three	214,160		214,160		167,375
Financing receivable, originated, year four	165,357		165,357		164,604
Financing receivable, originated, year five	161,431		161,431		129,844
Prior	455,333		455,333		337,523
Revolving Loans Amortized Cost	0		0		57
Total	1,196,158		1,196,158		1,191,889
Gross current period charge-offs, originated, total	0	0
Commercial real estate loans | Commercial non-owner occupied | Pass and Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	21,865		21,865		177,822
Financing receivable, originated, year two	175,197		175,197		211,228
Financing receivable, originated, year three	208,613		208,613		155,278
Financing receivable, originated, year four	153,439		153,439		160,670
Financing receivable, originated, year five	145,528		145,528		129,166
Prior	419,415		419,415		308,509
Revolving Loans Amortized Cost	0		0		57
Total	1,124,057		1,124,057		1,142,730
Commercial real estate loans | Commercial non-owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		0
Financing receivable, originated, year two	2,815		2,815		1,172
Financing receivable, originated, year three	3,320		3,320		12,097
Financing receivable, originated, year four	11,918		11,918		3,934
Financing receivable, originated, year five	15,903		15,903		678
Prior	13,797		13,797		9,290
Revolving Loans Amortized Cost	0		0		0
Total	47,753		47,753		27,171
Commercial real estate loans | Commercial non-owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		0
Financing receivable, originated, year two	0		0		2,264
Financing receivable, originated, year three	2,227		2,227		0
Financing receivable, originated, year four	0		0		0
Financing receivable, originated, year five	0		0		0
Prior	22,121		22,121		19,724
Revolving Loans Amortized Cost	0		0		0
Total	24,348		24,348		21,988
Commercial real estate loans | Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	10,537		10,537		49,262
Financing receivable, originated, year two	45,971		45,971		19,393
Financing receivable, originated, year three	24,061		24,061		28,861
Financing receivable, originated, year four	28,417		28,417		7,745
Financing receivable, originated, year five	0		0		9,112
Prior	0		0		0
Revolving Loans Amortized Cost	0		0		0
Total	108,986		108,986		114,373
Gross current period charge-offs, originated, total	0	0	0	0
Commercial real estate loans | Construction | Pass and Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	10,537		10,537		49,262
Financing receivable, originated, year two	45,971		45,971		19,393
Financing receivable, originated, year three	24,061		24,061		28,861
Financing receivable, originated, year four	28,417		28,417		7,745
Financing receivable, originated, year five	0		0		9,112
Prior	0		0		0
Revolving Loans Amortized Cost	0		0		0
Total	108,986		108,986		114,373
Residential loans | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		0
Financing receivable, originated, year two	0		0		0
Financing receivable, originated, year three	0		0		0
Financing receivable, originated, year four	0		0		0
Financing receivable, originated, year five	0		0		0
Prior	1,158		1,158		1,363
Revolving Loans Amortized Cost	84,429		84,429		87,385
Total	85,587		85,587		88,748
Gross current period charge-offs, originated, total	0	0	0	0
Residential loans | Home equity | Pass and Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		0
Financing receivable, originated, year two	0		0		0
Financing receivable, originated, year three	0		0		0
Financing receivable, originated, year four	0		0		0
Financing receivable, originated, year five	0		0		0
Prior	717		717		883
Revolving Loans Amortized Cost	84,007		84,007		86,971
Total	84,724		84,724		87,854
Residential loans | Home equity | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	0		0		0
Financing receivable, originated, year two	0		0		0
Financing receivable, originated, year three	0		0		0
Financing receivable, originated, year four	0		0		0
Financing receivable, originated, year five	0		0		0
Prior	441		441		480
Revolving Loans Amortized Cost	422		422		414
Total	863		863		894
Residential loans | Other residential
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	12,521		12,521		21,154
Financing receivable, originated, year two	20,322		20,322		14,547
Financing receivable, originated, year three	13,818		13,818		29,018
Financing receivable, originated, year four	27,340		27,340		21,890
Financing receivable, originated, year five	21,605		21,605		11,064
Prior	23,040		23,040		14,450
Revolving Loans Amortized Cost	0		0		0
Total	118,646		118,646		112,123
Gross current period charge-offs, originated, total	0	0	0	0
Residential loans | Other residential | Pass and Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	12,521		12,521		21,154
Financing receivable, originated, year two	20,322		20,322		14,547
Financing receivable, originated, year three	13,818		13,818		29,018
Financing receivable, originated, year four	27,340		27,340		21,890
Financing receivable, originated, year five	21,605		21,605		11,064
Prior	23,040		23,040		14,450
Revolving Loans Amortized Cost	0		0		0
Total	118,646		118,646		112,123
Consumer loans | Installment and other consumer loans
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	14,426		14,426		20,054
Financing receivable, originated, year two	16,790		16,790		13,022
Financing receivable, originated, year three	11,884		11,884		5,727
Financing receivable, originated, year four	5,182		5,182		6,492
Financing receivable, originated, year five	5,741		5,741		4,181
Prior	10,264		10,264		6,569
Revolving Loans Amortized Cost	1,024		1,024		944
Total	65,311		65,311		56,989
Gross current period charge-offs, originated, year one			(6)
Gross current period charge-offs, originated, year two			(5)
Gross current period charge-offs, originated, year three			0
Gross current period charge-offs, originated, year four			(4)
Gross current period charge-offs, originated, year five			0
Gross current period charge-offs, originated, prior			(1)
Gross current period charge-offs, originated, Revolving Loans Amortized Cost			(4)
Gross current period charge-offs, originated, total	(9)	$ (20)	(20)	$ (22)
Consumer loans | Installment and other consumer loans | Pass and Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one	14,426		14,426		20,054
Financing receivable, originated, year two	16,790		16,790		13,022
Financing receivable, originated, year three	11,884		11,884		5,727
Financing receivable, originated, year four	5,182		5,182		6,492
Financing receivable, originated, year five	5,741		5,741		4,181
Prior	10,264		10,264		6,478
Revolving Loans Amortized Cost	1,024		1,024		944
Total	$ 65,311		$ 65,311		56,898
Consumer loans | Installment and other consumer loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated, year one					0
Financing receivable, originated, year two					0
Financing receivable, originated, year three					0
Financing receivable, originated, year four					0
Financing receivable, originated, year five					0
Prior					91
Revolving Loans Amortized Cost					0
Total					$ 91

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses on Loans - Loans Outstanding and Aging Analysis (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	$ 2,102,796,000		$ 2,102,796,000		$ 2,092,546,000
Loans past due more than 90 days still accruing	0		0		0
Financing receivable, nonaccrual, earning interest on cash basis	0		0		0
Financing receivable, nonaccrual, interest income	0	$ 0	0	$ 0
Financing receivable, accrued interest, writeoff			14,000	$ 8,000
Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	2,102,796,000		2,102,796,000		2,092,546,000
Non-accrual loans	2,112,000		2,112,000		2,432,000
Non-accrual loans with no allowance	2,112,000		2,112,000		2,432,000
Total past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	2,362,000		2,362,000		1,342,000
30-59 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	546,000		546,000		420,000
60-89 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	528,000		528,000		244,000
90 days or more past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	1,288,000		1,288,000		678,000
Current | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	2,100,434,000		2,100,434,000		2,091,204,000
Commercial loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	183,157,000		183,157,000		173,547,000
Commercial loans | Commercial and industrial | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	183,157,000		183,157,000		173,547,000
Non-accrual loans	0		0		0
Non-accrual loans with no allowance	0		0		0
Commercial loans | Commercial and industrial | Total past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	436,000		436,000		267,000
Commercial loans | Commercial and industrial | 30-59 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		3,000
Commercial loans | Commercial and industrial | 60-89 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	436,000		436,000		0
Commercial loans | Commercial and industrial | 90 days or more past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		264,000
Commercial loans | Commercial and industrial | Current | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	182,721,000		182,721,000		173,280,000
Commercial real estate loans | Commercial owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	344,951,000		344,951,000		354,877,000
Commercial real estate loans | Commercial owner-occupied | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	344,951,000		344,951,000		354,877,000
Non-accrual loans	457,000		457,000		1,563,000
Non-accrual loans with no allowance	457,000		457,000		1,563,000
Commercial real estate loans | Commercial owner-occupied | Total past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	164,000		164,000		0
Commercial real estate loans | Commercial owner-occupied | 30-59 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Commercial real estate loans | Commercial owner-occupied | 60-89 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Commercial real estate loans | Commercial owner-occupied | 90 days or more past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	164,000		164,000		0
Commercial real estate loans | Commercial owner-occupied | Current | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	344,787,000		344,787,000		354,877,000
Commercial real estate loans | Commercial non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	1,196,158,000		1,196,158,000		1,191,889,000
Commercial real estate loans | Commercial non-owner occupied | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	1,196,158,000		1,196,158,000		1,191,889,000
Non-accrual loans	906,000		906,000		0
Non-accrual loans with no allowance	906,000		906,000		0
Commercial real estate loans | Commercial non-owner occupied | Total past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	1,277,000		1,277,000		0
Commercial real estate loans | Commercial non-owner occupied | 30-59 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	371,000		371,000		0
Commercial real estate loans | Commercial non-owner occupied | 60-89 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Commercial real estate loans | Commercial non-owner occupied | 90 days or more past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	906,000		906,000		0
Commercial real estate loans | Commercial non-owner occupied | Current | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	1,194,881,000		1,194,881,000		1,191,889,000
Commercial real estate loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	108,986,000		108,986,000		114,373,000
Commercial real estate loans | Construction | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	108,986,000		108,986,000		114,373,000
Non-accrual loans	0		0		0
Non-accrual loans with no allowance	0		0		0
Commercial real estate loans | Construction | Total past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Commercial real estate loans | Construction | 30-59 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Commercial real estate loans | Construction | 60-89 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Commercial real estate loans | Construction | 90 days or more past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Commercial real estate loans | Construction | Current | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	108,986,000		108,986,000		114,373,000
Residential loans | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	85,587,000		85,587,000		88,748,000
Residential loans | Home equity | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	85,587,000		85,587,000		88,748,000
Non-accrual loans	749,000		749,000		778,000
Non-accrual loans with no allowance	749,000		749,000		778,000
Residential loans | Home equity | Total past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	433,000		433,000		977,000
Residential loans | Home equity | 30-59 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	124,000		124,000		319,000
Residential loans | Home equity | 60-89 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	91,000		91,000		244,000
Residential loans | Home equity | 90 days or more past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	218,000		218,000		414,000
Residential loans | Home equity | Current | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	85,154,000		85,154,000		87,771,000
Residential loans | Other residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	118,646,000		118,646,000		112,123,000
Residential loans | Other residential | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	118,646,000		118,646,000		112,123,000
Non-accrual loans	0		0		0
Non-accrual loans with no allowance	0		0		0
Residential loans | Other residential | Total past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		93,000
Residential loans | Other residential | 30-59 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		93,000
Residential loans | Other residential | 60-89 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Residential loans | Other residential | 90 days or more past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Residential loans | Other residential | Current | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	118,646,000		118,646,000		112,030,000
Consumer loans | Installment and other consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	65,311,000		65,311,000		56,989,000
Consumer loans | Installment and other consumer loans | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	65,311,000		65,311,000		56,989,000
Non-accrual loans	0		0		91,000
Non-accrual loans with no allowance	0		0		91,000
Consumer loans | Installment and other consumer loans | Total past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	52,000		52,000		5,000
Consumer loans | Installment and other consumer loans | 30-59 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	51,000		51,000		5,000
Consumer loans | Installment and other consumer loans | 60-89 days past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	1,000		1,000		0
Consumer loans | Installment and other consumer loans | 90 days or more past due | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	0		0		0
Consumer loans | Installment and other consumer loans | Current | Financial asset, other than financial asset acquired with credit deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, at amortized cost	$ 65,259,000		$ 65,259,000		$ 56,984,000

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses on Loans - Schedule of Collateral-Dependent Non-Accrual Loans (Details) - USD ($)	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	$ 23,832,000	$ 23,330,000	$ 22,983,000	$ 22,539,000	$ 22,547,000	$ 23,023,000
Weighted average ratio of loans value to collateral dependent loans value	40%		42%
Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 2,112,000		$ 2,432,000
Allowance for credit losses	0		0
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	1,363,000		1,563,000
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	749,000		778,000
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	0		91,000
Commercial real estate loans | Commercial owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	2,589,000	2,640,000	2,487,000	2,617,000	2,622,000	2,776,000
Commercial real estate loans | Commercial owner-occupied | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	457,000		1,563,000
Allowance for credit losses	0		0
Commercial real estate loans | Commercial owner-occupied | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	457,000		1,563,000
Commercial real estate loans | Commercial owner-occupied | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	0		0
Commercial real estate loans | Commercial owner-occupied | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	0		0
Commercial real estate loans | Commercial non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	13,201,000	12,701,000	12,676,000	12,439,000	12,301,000
Commercial real estate loans | Commercial non-owner occupied | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	906,000
Allowance for credit losses	0
Commercial real estate loans | Commercial non-owner occupied | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	906,000
Commercial real estate loans | Commercial non-owner occupied | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	0
Commercial real estate loans | Commercial non-owner occupied | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	0
Commercial real estate loans | Installment and other consumer loans | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans			91,000
Allowance for credit losses			0
Commercial real estate loans | Installment and other consumer loans | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans			0
Commercial real estate loans | Installment and other consumer loans | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans			0
Commercial real estate loans | Installment and other consumer loans | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans			91,000
Residential loans | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	561,000	538,000	558,000	530,000	549,000	595,000
Residential loans | Home equity | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	749,000		778,000
Allowance for credit losses	0		0
Residential loans | Home equity | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	0		0
Residential loans | Home equity | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	749,000		778,000
Residential loans | Home equity | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	0		0
Residential loans | Other residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	599,000	$ 577,000	595,000	$ 585,000	$ 628,000	$ 644,000
Residential loans | Other residential | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual collateral dependent loans in process of foreclosure	$ 0		$ 0

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses on Loans - Allocation of the Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	$ 23,832	$ 23,330	$ 22,983	$ 22,539	$ 22,547	$ 23,023
Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	11,718		12,651
Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	12,093		10,323
Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	21		9
Commercial loans | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,831	1,941	1,794	1,699	1,784	1,709
Commercial loans | Commercial and industrial | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,100		1,079
Commercial loans | Commercial and industrial | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	711		706
Commercial loans | Commercial and industrial | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	20		9
Commercial real estate loans | Commercial owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	2,589	2,640	2,487	2,617	2,622	2,776
Commercial real estate loans | Commercial owner-occupied | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,329		1,497
Commercial real estate loans | Commercial owner-occupied | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,260		990
Commercial real estate loans | Commercial owner-occupied | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Commercial real estate loans | Commercial non-owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	13,201	12,701	12,676	12,439	12,301
Commercial real estate loans | Commercial non-owner occupied | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	7,441		7,937
Commercial real estate loans | Commercial non-owner occupied | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	5,760		4,739
Commercial real estate loans | Commercial non-owner occupied | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Commercial real estate loans | Construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,942	2,019	1,937	1,737	1,717	1,653
Commercial real estate loans | Construction | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	195		453
Commercial real estate loans | Construction | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1,747		1,484
Commercial real estate loans | Construction | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Residential loans | Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	561	538	558	530	549	595
Residential loans | Home equity | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	486		504
Residential loans | Home equity | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	75		54
Residential loans | Home equity | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Residential loans | Other residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	599	577	595	585	628	644
Residential loans | Other residential | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	558		571
Residential loans | Other residential | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	40		24
Residential loans | Other residential | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	1		0
Consumer loans | Installment and other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	940	882	868	733	641	621
Consumer loans | Installment and other consumer loans | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	609		610
Consumer loans | Installment and other consumer loans | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	331		258
Consumer loans | Installment and other consumer loans | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Unallocated
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	2,169	$ 2,032	2,068	$ 2,199	$ 2,305	$ 2,286
Unallocated | Modeled expected credit losses
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	0		0
Unallocated | Qualitative adjustments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	2,169		2,068
Unallocated | Specific allocations
Financing Receivable, Troubled Debt Restructuring [Line Items]
Allowance for credit losses	$ 0		$ 0

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses on Loans - Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 23,330	$ 22,983	$ 22,547	$ 22,983	$ 23,023
(Reversal) Provision	500	350	0	850	(485)
(Charge-offs)	(9)		(20)	(23)	(22)
Recoveries	11		12	22	23
Ending balance	23,832	23,330	22,539	23,832	22,539
Commercial loans | Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,941	1,794	1,784	1,794	1,709
(Reversal) Provision	(111)		(89)	36	(17)
(Charge-offs)	0		0	(3)	0
Recoveries	1		4	4	7
Ending balance	1,831	1,941	1,699	1,831	1,699
Commercial real estate loans | Commercial owner-occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,640	2,487	2,622	2,487	2,776
(Reversal) Provision	(51)		(5)	102	(159)
(Charge-offs)	0		0	0	0
Recoveries	0		0	0	0
Ending balance	2,589	2,640	2,617	2,589	2,617
Commercial real estate loans | Commercial non-owner occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	12,701	12,676	12,301	12,676
(Reversal) Provision	500		138
(Charge-offs)	0		0
Recoveries	0		0
Ending balance	13,201	12,701	12,439	13,201	12,439
Commercial real estate loans | Commercial real estate, investor
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		12,676		12,676	12,739
(Reversal) Provision				525	(300)
(Charge-offs)				0	0
Recoveries				0	0
Ending balance	13,201		12,439	13,201	12,439
Commercial real estate loans | Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,019	1,937	1,717	1,937	1,653
(Reversal) Provision	(86)		12	(12)	68
(Charge-offs)	0		0	0	0
Recoveries	9		8	17	16
Ending balance	1,942	2,019	1,737	1,942	1,737
Residential loans | Home equity
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	538	558	549	558	595
(Reversal) Provision	23		(19)	3	(65)
(Charge-offs)	0		0	0	0
Recoveries	0		0	0	0
Ending balance	561	538	530	561	530
Residential loans | Other residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	577	595	628	595	644
(Reversal) Provision	22		(43)	4	(59)
(Charge-offs)	0		0	0	0
Recoveries	0		0	0	0
Ending balance	599	577	585	599	585
Consumer loans | Installment and other consumer loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	882	868	641	868	621
(Reversal) Provision	66		112	91	134
(Charge-offs)	(9)		(20)	(20)	(22)
Recoveries	1		0	1	0
Ending balance	940	882	733	940	733
Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,032	2,068	2,305	2,068	2,286
(Reversal) Provision	137		(106)	101	(87)
(Charge-offs)	0		0	0	0
Recoveries	0		0	0	0
Ending balance	$ 2,169	$ 2,032	$ 2,199	$ 2,169	$ 2,199

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses on Loans - Pledged Loans (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Other residential | Federal Reserve Bank
Financial Instruments Owned and Pledged as Collateral [Line Items]
Collateral pledged	$ 109	$ 105
Federal Home Loan Bank of San Francisco
Financial Instruments Owned and Pledged as Collateral [Line Items]
Collateral pledged	$ 1,293	$ 1,298

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses on Loans - Related Party (Details) - Related Party - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Related party loans	$ 6,300	$ 6,400
Undisbursed commitment to related parties	$ 562	$ 562

Short-Term Borrowings and Oth_3

Short-Term Borrowings and Other Obligations - Lines of Credit (Details) - Line of credit - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Federal home loan bank borrowings
Line of Credit Facility [Line Items]
Lines of credit	$ 1,034	$ 711.6
Federal reserve line of credit
Line of Credit Facility [Line Items]
Lines of credit	58	58.7
Federal reserve line of credit | Federal Reserve Bank Term Funding Program
Line of Credit Facility [Line Items]
Lines of credit	279
Unsecured debt | Federal funds purchased
Line of Credit Facility [Line Items]
Lines of credit	$ 135	$ 150

Short-Term Borrowings and Oth_4

Short-Term Borrowings and Other Obligations- Other Obligations (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Finance lease liabilities	$ 372	$ 439
Finance Lease, Liability, Statement of Financial Position [Extensible List]	Debt and Lease Obligation	Debt and Lease Obligation

Short-Term Borrowings and Oth_5

Short-Term Borrowings and Other Obligations - Schedule of Borrowings (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Line of Credit Facility [Line Items]
Finance lease liabilities	$ 372	$ 439
Short-term borrowings and other obligations	$ 292,572	$ 112,439
Weighted Average Rate	5.28%	4.64%
Other Debt Obligations
Line of Credit Facility [Line Items]
Finance lease liabilities	$ 372	$ 439
Weighted Average Rate	1.97%	1.86%
Line of credit | Federal home loan bank borrowings
Line of Credit Facility [Line Items]
Outstanding Balance	$ 292,200	$ 112,000
Weighted Average Rate	5.28%	4.65%
Line of credit | Federal Home Loan Bank Advances
Line of Credit Facility [Line Items]
Outstanding Balance	$ 0	$ 0
Weighted Average Rate	0%	0%
Line of credit | Federal funds purchased
Line of Credit Facility [Line Items]
Outstanding Balance	$ 0	$ 0
Weighted Average Rate	0%	0%
Line of credit | Federal Reserve Bank Term Funding Program
Line of Credit Facility [Line Items]
Outstanding Balance	$ 0	$ 0
Weighted Average Rate	0%	0%

Stockholders' Equity (Details)

Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands			6 Months Ended
	Jul. 21, 2023	Apr. 21, 2023	Jun. 30, 2023	Jun. 30, 2022
Class of Stock [Line Items]
Dividends declared per common share (in usd per share)		$ 0.25
Shares withheld for tax withholding and exercise of options (in shares)			3,132	10,208
Amount of shares withheld for tax withholding and exercise of options			$ 86	$ 351
Shares withheld for tax withholding and exercise of options, weighted average price (in usd per share)			$ 27.57	$ 34.38
Subsequent event
Class of Stock [Line Items]
Dividends declared per common share (in usd per share)	$ 0.25
Common Stock
Class of Stock [Line Items]
Share repurchase program, amount outstanding			$ 34,700
Stock repurchased, including commissions (in shares)			0	23,275
Cumulative stock repurchased (in shares)			618,991
Stock repurchased during period (in usd per share)			$ 36.04
Common Stock | Subsequent event
Class of Stock [Line Items]
Share repurchase program, amount approved to repurchase	$ 25,000
Performance-based stock awards
Class of Stock [Line Items]
Vesting period of performance-based stock awards			3 years
Performance-based stock awards | Minimum
Class of Stock [Line Items]
Vesting percentage of performance-based awards			0%
Performance-based stock awards | Maximum
Class of Stock [Line Items]
Vesting percentage of performance-based awards			200%

Commitments and Contingent Li_2

Commitments and Contingent Liabilities - Off Balance Sheet Arrangements (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Total unfunded loan commitments and standby letters of credit
Other Commitments [Line Items]
Total unfunded loan commitments and standby letters of credit	$ 489,580	$ 566,870
Commercial lines of credit
Other Commitments [Line Items]
Total unfunded loan commitments and standby letters of credit	236,895	292,204
Revolving home equity lines
Other Commitments [Line Items]
Total unfunded loan commitments and standby letters of credit	219,144	218,907
Undisbursed construction loans
Other Commitments [Line Items]
Total unfunded loan commitments and standby letters of credit	22,683	43,179
Personal and other lines of credit
Other Commitments [Line Items]
Total unfunded loan commitments and standby letters of credit	9,701	10,842
Standby letters of credit
Other Commitments [Line Items]
Total unfunded loan commitments and standby letters of credit	$ 1,157	$ 1,738

Commitments and Contingent Li_3

Commitments and Contingent Liabilities - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Loss Contingencies [Line Items]
Reversal of credit losses on unfunded loan commitments	$ (168)	$ (174)	$ 0	$ (342)	$ (318)
Unfunded loan commitments decrease	$ 39,900			$ 77,300
Minimum
Loss Contingencies [Line Items]
Weighted average remaining term (in years)	10 months			10 months
Finance lease, initial contract terms (in years)	3 years			3 years
Maximum
Loss Contingencies [Line Items]
Weighted average remaining term (in years)	18 years 11 months			18 years 11 months
Finance lease, initial contract terms (in years)	5 years			5 years
Interest payable and other liabilities | Total unfunded loan commitments and standby letters of credit
Loss Contingencies [Line Items]
Allowance for off balance sheet commitments	$ 1,100			$ 1,100		$ 1,500

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Operating leases:
Operating lease right-of-use assets	$ 22,739	$ 24,821
Operating lease liabilities	$ 25,220	$ 26,639
Finance leases:
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Bank premises and equipment, net	Bank premises and equipment, net
Finance lease right-of-use assets	$ 608	$ 616
Accumulated amortization	(245)	(187)
Finance lease right-of-use assets, net	363	429
Finance lease liabilities	$ 372	$ 439

Commitments and Contingent Li_5

Commitments and Contingent Liabilities - Noncash Investing and Financing Activities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Right-of-use assets obtained in exchange for operating lease liabilities, net of tenant improvement allowances received	$ 572	$ 1,124
Right-of-use assets obtained in exchange for finance lease liabilities	$ 7	$ 0

Commitments and Contingent Li_6

Commitments and Contingent Liabilities - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 1,322	$ 1,295	$ 2,932	$ 2,579
Variable lease cost	0	0	0	0
Total operating lease cost	1,322	1,295	2,932	2,579
Finance lease cost:
Amortization of right-of-use assets	37	31	74	62
Interest on finance lease liabilities	2		4	1
Total finance lease cost	39	31	78	63
Total lease cost	$ 1,361	$ 1,326	$ 3,010	$ 2,642

Commitments and Contingent Li_7

Commitments and Contingent Liabilities - Lease Liability Maturity Schedule (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Operating Leases
2023	$ 2,587
2024	4,753
2025	4,112
2026	3,373
2027	3,097
Thereafter	10,017
Total minimum lease payments	27,939
Amounts representing interest (present value discount)	(2,719)
Present value of net minimum lease payments (lease liability)	$ 25,220	$ 26,639
Weighted average remaining term (in years)	7 years 6 months
Weighted average discount rate	2.36%
Finance Leases
2023	$ 78
2024	155
2025	108
2026	37
2027	5
Thereafter	0
Total minimum lease payments	383
Amounts representing interest (present value discount)	(11)
Present value of net minimum lease payments (lease liability)	$ 372	$ 439
Weighted average remaining term (in years)	2 years 7 months 6 days
Weighted average discount rate	1.97%

Derivative Financial Instrume_3

Derivative Financial Instruments and Hedging Activities - Narrative (Details) $ in Thousands	Jul. 07, 2023 USD ($)	Jun. 30, 2023 USD ($) derivative	Dec. 31, 2022 USD ($)
Derivatives, Fair Value [Line Items]
Derivative, notional amount		$ 11,500
Interest rate swap | Subsequent event
Derivatives, Fair Value [Line Items]
Derivative, notional amount	$ 101,800
Interest rate swap | Subsequent event | Minimum
Derivatives, Fair Value [Line Items]
Derivative, term of contract	2 years 6 months
Interest rate swap | Subsequent event | Maximum
Derivatives, Fair Value [Line Items]
Derivative, term of contract	3 years
Fair value hedge | Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Interest rate swaps accrued interest		$ 7	$ 5
Fair value hedge | Interest rate swap | Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Number of instruments held | derivative		4

Derivative Financial Instrume_4

Derivative Financial Instruments and Hedging Activities - Information on Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Carrying Amounts of Hedged Assets	$ 10,786			$ 10,786		$ 11,319
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Loans	(749)			(749)		(726)
Interest and fees on loans	24,579	$ 24,258	$ 23,334	48,837	$ 47,011
Fair value hedge
Derivatives, Fair Value [Line Items]
Increase (decrease) in fair value of designated interest rate swaps due to LIBOR interest rate movements	250		430	29	1,187
Receivable (payment) on interest rate swaps	66		(65)	118	(150)
(Decrease) increase in fair value hedging adjustment of hedged loans	(243)		(428)	(23)	(1,180)
Decrease in value of yield maintenance agreement	(2)		(2)	(4)	(5)
Net gain (loss) on fair value hedging relationships recognized in interest income	71		$ (65)	120	$ (148)
Fair value hedge | Designated as hedging instrument | Interest rate swap
Derivatives, Fair Value [Line Items]
Interest rate contracts notional amount, asset derivatives	11,535			11,535		12,046
Interest rate contracts notional amount, liability derivatives	0			0		0
Interest rate contracts fair value, asset derivatives	631			631		602
Interest rate contracts fair value, liability derivatives	$ 0			$ 0		$ 0

Derivative Financial Instrume_5

Derivative Financial Instruments and Hedging Activities - Offsetting of Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross amounts of recognized assets	$ 631	$ 602
Gross amounts offset in the statements of condition	0	0
Net amounts of assets presented in the statements of condition	631	602
Gross amounts not offset in the statements of condition, financial instruments	0	0
Gross amounts not offset in the statements of condition, cash collateral received	0	0
Net Amount	$ 631	$ 602