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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Cash Flows from Operating Activities: |  |  |  |
Net income |  | $ 46,586 | $ 33,228 | $ 30,242
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |
(Reversal of) provision for credit losses on loans |  | (63) | (1,449) | 4,594
(Reversal of) provision for credit losses on unfunded loan commitments |  | (318) | (992) | 1,570
Noncash contribution expense to employee stock ownership plan |  | 1,233 | 1,330 | 1,289
Noncash director compensation expense |  | 355 | 217 | 217
Stock-based compensation expense |  | 963 | 972 | 1,203
Amortization of core deposit intangible |  | 1,489 | 1,135 | 853
Amortization of investment security premiums, net of accretion of discounts |  | 9,056 | 5,799 | 1,354
Amortization of premiums (accretion of discounts) on acquired loans, net |  | 153 | (571) | (165)
Accretion of discount on subordinated debenture |  | 0 | 1,347 | 69
Net change in deferred loan origination costs/fees |  | (2,716) | (3,155) | 5,040
Write-down of other real estate owned |  | 345 | 0 | 0
Losses (gains) on sale of investment securities, net |  | 63 | 16 | (915)
Depreciation and amortization |  | 1,840 | 1,740 | 2,149
Earnings on bank-owned life insurance policies |  | (1,229) | (2,194) | (973)
Net changes in interest receivable and other assets |  | 2,228 | 5,554 | (5,135)
Net changes in interest payable and other liabilities |  | (4,708) | 2,276 | (547)
Total adjustments |  | 8,691 | 12,025 | 10,603
Net cash provided by operating activities |  | 55,277 | 45,253 | 40,845
Cash Flows from Investing Activities: |  |  |  |
Purchase of held-to-maturity securities |  | (319,937) | (305,329) | 0
Purchase of available-for-sale securities |  | (243,459) | (620,236) | (97,544)
Proceeds from sale of available-for-sale securities |  | 10,664 | 6,632 | 33,756
Proceeds from paydowns/maturities of held-to-maturity securities |  | 47,098 | 71,682 | 28,144
Proceeds from paydowns/maturities of available-for-sale securities |  | 130,178 | 110,059 | 114,991
Loan principal collected, net of originations |  | 164,019 | 256,856 | (249,337)
Purchase of bank-owned life insurance policies |  | (4,714) | (1,943) | (941)
Cash receipts from bank-owned life insurance policies |  | 350 | 2,478 | 0
Purchase of premises and equipment |  | (2,266) | (1,044) | (981)
Cash and cash equivalents acquired from American River Bankshares |  | 0 | 140,577 | 0
Purchase of Federal Home Loan Bank stock |  | 0 | 0 | (176)
Cash paid for low income housing tax credit investment |  | (30) | (398) | (1,355)
Net cash used in investing activities |  | (218,097) | (340,666) | (173,443)
Cash Flows from Financing Activities: |  |  |  |
Net (decrease) increase in deposits |  | (235,202) | 514,279 | 167,760
Federal Home Loan Bank borrowings (repayment) |  | 112,000 | (13,885) | 0
Repayment of finance lease obligations |  | (131) | (86) | (172)
Repayment of subordinated debenture including execution costs |  | 0 | (4,126) | 0
Proceeds from stock options exercised |  | 821 | 463 | 1,304
Restricted stock surrendered for tax withholdings upon vesting |  | (40) | (166) | (73)
Cash dividends paid on common stock |  | (15,673) | (13,107) | (12,506)
Stock repurchased, including commissions |  | (1,250) | (40,762) | (6,898)
Proceeds from stock issued under employee and director stock purchase plans |  | 78 | 124 | 115
Net cash (used in) provided by financing activities |  | (139,397) | 442,734 | 149,530
Net (decrease) increase in cash, cash equivalents and restricted cash |  | (302,217) | 147,321 | 16,932
Cash, cash equivalents and restricted cash at beginning of period |  | 347,641 | 200,320 | 183,388
Cash, cash equivalents and restricted cash at end of period |  | 45,424 | 347,641 | 200,320
Supplemental disclosure of cash flow information: |  |  |  |
Cash paid in interest |  | 2,560 | 2,105 | 2,948
Cash paid in income taxes |  | 14,325 | 12,350 | 13,065
Supplemental disclosure of noncash investing and financing activities: |  |  |  |
Change in net unrealized gain or loss on available-for-sale securities |  | (88,620) | (21,281) | 11,891
Cumulative effect of change in accounting principle ASU 2016-13 |  | 0 | 0 | (1,216)
Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity |  | 1,580 | 493 | 524
Repurchase of stock not yet settled |  | 0 | 373 | 413
Securities transferred from available-for-sale to held-to-maturity |  | 357,482 | 0 | 0
Acquisition: Fair value of assets acquired, excluding cash and cash equivalents |  | 0 | 757,844 | 0
Fair value of liabilities assumed |  | 0 | 816,558 | 0
Restricted cash | [1] | $ 0 | $ 4,395 | $ 2,700
[1] | 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. The accompanying notes are an integral part of these consolidated financial statements.

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- Definition The sum of adjustments which are added to or deducted from net income or loss, including the portion attributable to noncontrolling interest, to reflect cash provided by or used in operating activities, in accordance with the indirect cash flow method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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- Definition The net increase(decrease) in interest income during the period representing the allocation of deferred loan origination fees less deferred loan origination costs using the effective interest method over the term of the debt arrangement to which they pertain taking into account the effect of prepayments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 35 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126974470&loc=d3e8622-111531 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585 + Details
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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3521-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3044-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586 + Details
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- Definition The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26853-111562 + Details
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- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128089324&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
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- Definition The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
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- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3044-108585 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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