Note 2 - Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2023
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Consolidation and Basis of Presentation The consolidated financial statements include the accounts of the Company and the consolidated accounts of its wholly-owned subsidiary, Plumas Bank. All significant intercompany balances and transactions have been eliminated. Plumas Statutory Trust I and Trust II are not consolidated into the Company's consolidated financial statements and, accordingly, are accounted for under the equity method. The Company's investment in Trust I of $374,000 and Trust II of $188,000 are included in accrued interest receivable and other assets on the consolidated balance sheet at December 31, 2022. The junior subordinated deferrable interest debentures issued and guaranteed by the Company and held by Trust I and Trust II are reflected as debt on the consolidated balance sheet at December 31, 2022. In March 2023 the Company redeemed the debentures and the Trusts were dissolved. The accounting and reporting policies of Plumas Bancorp and subsidiary conform with accounting principles generally accepted in the United States of America and prevailing practices within the banking industry. In the opinion of management, the unaudited condensed consolidated financial statements contain all adjustments (consisting of only normal recurring adjustments) necessary to present fairly the Company’s financial position at June 30, 2023 and the results of its operations and its cash flows for the three and six-month periods. Our condensed consolidated balance sheet at December 31, 2022 is derived from audited financial statements. The unaudited condensed consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim reporting on Form 10-Q. Accordingly, certain disclosures normally presented in the notes to the annual consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been omitted. The Company believes that the disclosures are adequate to make the information not misleading. These interim financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's 2022 Annual Report to Shareholders on Form 10-K. The results of operations for the three and six-month periods ended June 30, 2023, may not necessarily be indicative of future operating results. In preparing such financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the periods reported. Actual results could differ significantly from those estimates. Segment Information Management has determined that since all of the banking products and services offered by the Company are available in each branch of the Bank, all branches are located within the same economic environment and management does not allocate resources based on the performance of different lending or transaction activities, it is appropriate to aggregate the Bank branches and report them as a single operating segment. No customer accounts for more than 10 percent of revenues for the Company or the Bank. Allowance for Credit Losses - Loans The allowance for credit losses (ACL) is a valuation account that is deducted from the loan's amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged off against the allowance when management believes the recorded loan balance is confirmed as uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Regardless of the determination that a charge-off is appropriate for financial accounting purposes, the Company manages its loan portfolio by continually monitoring, where possible, a borrower's ability to pay through the collection of financial information, delinquency status, borrower discussion and the encouragement to repay in accordance with the original contract or modified terms, if appropriate. Management estimates the allowance balance using relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. The Company identified and accumulated loan cohort historical loss data beginning with the first quarter of 2004 and through the current period. In situations where the Company's actual loss history was not statistically relevant, the loss history of peers, defined as financial institutions with assets greater than seven hundred and fifty million and less than three billion, were utilized to create a minimum loss rate. In its loss forecasting framework, the Company incorporates forward-looking information through the use of macroeconomic scenarios applied over the forecasted life of the assets. These macroeconomic scenarios incorporate variables that have historically been key drivers of increases and decreases in credit losses. These variables include, but are not limited to changes in environmental conditions, such as California unemployment rates, California Housing Prices, California gross domestic product, California Retail Trade Earnings and Wall Street Journal Prime Rate. A loan is considered to be collateral dependent when repayment is expected to be provided substantially through the operation or sale of the collateral. The ACL on collateral dependent loans is measured using the amortized cost basis of the financial asset less the fair value of the underlying collateral, adjusted for costs to sell when applicable. If the value of underlying collateral is determined to be less than the recorded amount of the loan, a specific reserve for that loan is recorded. If the Company determines that the loss represented by the specific reserve is uncollectable it records a charge-off for the uncollectable portion. The Company has identified the following portfolio segments to evaluate and measure the allowance for credit loss: Commercial: Primarily based on the cash flow of the borrower, and secondarily on the underlying collateral provided by the borrower. A borrower's cash flow may be unpredictable, and collateral securing these loans may fluctuate in value. Most often, collateral includes accounts receivable, inventory, or equipment. Collateral securing these loans may depreciate over time, may be difficult to appraise, may be illiquid and may fluctuate in value based on the success of the business. Actual and forecast changes in California gross domestic product paired with California unemployment are believed to be corollary to losses associated with these credits. Agricultural: Loans secured by farmland represent unique risks that are associated with the operation of an agricultural business. The valuation of farmland can vary greatly over time based on the property's access to resources including but not limited to water, crop prices, foreign exchange rates, government regulation or restrictions, and the nature of ongoing capital investment needed to maintain the quality of the property. Loans secured by crop production, and livestock are especially vulnerable to two risk factors that are largely outside the control of Company and borrowers: commodity prices and weather conditions. Real estate - residential: The most significant drivers of potential loss within the Company's residential real estate portfolio relate to general, regional, or individual changes in economic conditions and their effect on employment and borrowers cash flow. Risk in this portfolio is best measured by changes in borrower credit score and loan-to-value. Loss estimates are based on economic outlook and its effects on employment and the value of homes and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate. Real estate - commercial: These credits are primarily susceptible to changes in the financial condition of the business operated by the property owner. This may be driven by changes in, among other things, industry challenges, factors unique to the operating geography of the borrower, change in the individual fortunes of the business owner, general economic conditions and changes in business cycles. When default is driven by issues related specifically to the business owner, collateral values tend to provide better repayment support and may result in little or no loss. Alternatively, when default is driven more by general economic conditions, the underlying collateral may have devalued more and thus result in larger losses in the event of default. The terms on these loans at origination typically have maturities from ten to twenty-five years with amortization periods from five to thirty years. Construction: While secured by real estate, construction loans represent a greater level of risk than term real estate loans due to the nature of the additional risks associated with not only the completion of construction within an estimated time period and budget, but also the need to either sell the building or reach a level of stabilized occupancy sufficient to generate the cash flows necessary to support debt service and operating costs. The Company seeks to mitigate the additional risks associated with construction lending by requiring borrowers to comply with lower loan to value ratios and additional covenants as well as strong tertiary support of guarantors. The loss forecasting model applies the historical rate of loss for similar loans over the expected construction life of the asset as adjusted for macroeconomic factors. Home equity lines of credit (HELOC): Similar to residential real estate term loans, HELOC performance is also primarily driven by borrower cash flows based on employment status. However, HELOCs carry additional risks associated with the fact that most of these loans are secured by a deed of trust in a position that is junior to the primary lien holder. Furthermore, the risk that as the borrower's financial strength deteriorates, the outstanding balance on these credit lines may increase as they may only be canceled by the Company if certain limited criteria are met. In addition to the allowance for credit losses maintained as a percent of the outstanding loan balance, the Company maintains additional reserves for the unfunded portion of the HELOC. Automobile: Automobile loans are susceptible to three primary risks: non-payment due to income loss, over-extension of credit and, when the borrower is unable to pay, shortfall in collateral value, if any. Typically, non-payment is due to loss of job and will follow general economic trends in the marketplace driven primarily by rises in the unemployment rate. Loss of collateral value can be due to market demand shifts, damage to collateral itself or a combination of those factors. Other: Other loans primarily consist of consumer loans which are similar in nature to automobile loans and overdrafts. Unfunded commitments: The estimated credit losses associated with these unfunded lending commitments are calculated using the same models and methodologies noted above and incorporate utilization assumptions at time of default. The reserve for unfunded commitments is maintained on the balance sheet in other liabilities. Reclassification Some items in the prior year consolidated financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior year net income or shareholders' equity. Accounting Standards Adopted in 2023 On January 1, 2023, the Company adopted ASU 2016-03 Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which replaces the incurred loss methodology. This is referred to as the current expected credit loss (CECL) methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized costs, including loan receivables and held-to-maturity debt securities. It also applies to off-balance sheet credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments) and net investments in certain leases. In addition, ASC 326 made changes to the accounting for available for sale debt securities. The Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost and off-balance sheet credit exposures. Results for the reporting periods beginning after January 1, 2023 are presented under ASC 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company adopted ASC 326 using the prospective transition approach for financial assets purchased with credit deterioration (PCD) that were previously classified as purchased credit impaired (PCI) and accounted for under ASC 310-30. In accordance with the Standard, management did not reassess whether PCI assets met the criteria of PCD assets as of the date of adoption. The remaining noncredit discount (based on the adjusted amortized costs basis) will be accreted into interest income at the effective interest rate as of adoption. The Company recognized an increase in the ACL for loans totaling $529,000, as a cumulative effect adjustment from change in accounting policies, with a corresponding decrease in retained earnings, net of $156,000 in taxes. Additionally, the Company recognized an increase in the reserve for unfunded commitments of $257,000, as a cumulative effect adjustment from change in accounting policies, with a corresponding decrease in retained earnings, net of $76,000 in taxes. On January 1, 2023, the Company adopted ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The ASU provides optional expedients and exceptions for applying GAAP to loan and lease agreements, derivative contracts, and other transactions affected by the anticipated transition away from LIBOR toward new interest rate benchmarks. For transactions that are modified because of reference rate reform and that meet certain scope guidance (i) modifications of loan agreements should be accounted for by prospectively adjusting the effective interest rate and the modification will be considered "minor" so that any existing unamortized origination fees/costs would carry forward and continue to be amortized and (ii) modifications of lease agreements should be accounted for as a continuation of the existing agreement with no reassessments of the lease classification and the discount rate or remeasurements of lease payments that otherwise would be required for modifications not accounted for as separate contracts. ASU 2020-04 also provides numerous optional expedients for derivative accounting. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. The ASU 2022-06 deferred the sunset date of ASU 2020-04 to December 2024. Once elected for a Topic or an Industry Subtopic within the Codification, the amendments in this ASU must be applied prospectively for all eligible contract modifications for that Topic or Industry Subtopic. The adoption of the ASU provisions did not have a significant impact on the Company’s consolidated financial statements as the Company has an insignificant number of financial instruments applicable to this ASU. On January 1, 2023, the Company adopted ASU 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures. The ASU eliminates the recognition and measurement guidance for troubled debt restructurings and requires enhanced disclosures about loan modifications for borrowers experiencing financial difficulty. This ASU also requires enhanced disclosure for loans that have been charged off. The adoption of the ASU provisions did not have a significant impact on the Company’s consolidated financial statements.

Note 2 - Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2023

Significant Accounting Policies [Text Block]

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Consolidation and Basis of Presentation

The consolidated financial statements include the accounts of the Company and the consolidated accounts of its wholly-owned subsidiary, Plumas Bank. All significant intercompany balances and transactions have been eliminated.

Plumas Statutory Trust I and Trust II are not consolidated into the Company's consolidated financial statements and, accordingly, are accounted for under the equity method. The Company's investment in Trust I of $374,000 and Trust II of $188,000 are included in accrued interest receivable and other assets on the consolidated balance sheet at December 31, 2022. The junior subordinated deferrable interest debentures issued and guaranteed by the Company and held by Trust I and Trust II are reflected as debt on the consolidated balance sheet at December 31, 2022. In March 2023 the Company redeemed the debentures and the Trusts were dissolved.

The accounting and reporting policies of Plumas Bancorp and subsidiary conform with accounting principles generally accepted in the United States of America and prevailing practices within the banking industry. In the opinion of management, the unaudited condensed consolidated financial statements contain all adjustments (consisting of only normal recurring adjustments) necessary to present fairly the Company’s financial position at June 30, 2023 and the results of its operations and its cash flows for the three and six-month periods. Our condensed consolidated balance sheet at December 31, 2022 is derived from audited financial statements.

The unaudited condensed consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim reporting on Form 10-Q. Accordingly, certain disclosures normally presented in the notes to the annual consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been omitted. The Company believes that the disclosures are adequate to make the information not misleading. These interim financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's 2022 Annual Report to Shareholders on Form 10-K. The results of operations for the three and six-month periods ended June 30, 2023, may not necessarily be indicative of future operating results. In preparing such financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the periods reported. Actual results could differ significantly from those estimates.

Segment Information

Management has determined that since all of the banking products and services offered by the Company are available in each branch of the Bank, all branches are located within the same economic environment and management does not allocate resources based on the performance of different lending or transaction activities, it is appropriate to aggregate the Bank branches and report them as a single operating segment. No customer accounts for more than 10 percent of revenues for the Company or the Bank.

Allowance for Credit Losses - Loans

The allowance for credit losses (ACL) is a valuation account that is deducted from the loan's amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged off against the allowance when management believes the recorded loan balance is confirmed as uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Regardless of the determination that a charge-off is appropriate for financial accounting purposes, the Company manages its loan portfolio by continually monitoring, where possible, a borrower's ability to pay through the collection of financial information, delinquency status, borrower discussion and the encouragement to repay in accordance with the original contract or modified terms, if appropriate.

Management estimates the allowance balance using relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. The Company identified and accumulated loan cohort historical loss data beginning with the first quarter of 2004 and through the current period. In situations where the Company's actual loss history was not statistically relevant, the loss history of peers, defined as financial institutions with assets greater than seven hundred and fifty million and less than three billion, were utilized to create a minimum loss rate. In its loss forecasting framework, the Company incorporates forward-looking information through the use of macroeconomic scenarios applied over the forecasted life of the assets. These macroeconomic scenarios incorporate variables that have historically been key drivers of increases and decreases in credit losses. These variables include, but are not limited to changes in environmental conditions, such as California unemployment rates, California Housing Prices, California gross domestic product, California Retail Trade Earnings and Wall Street Journal Prime Rate.

A loan is considered to be collateral dependent when repayment is expected to be provided substantially through the operation or sale of the collateral. The ACL on collateral dependent loans is measured using the amortized cost basis of the financial asset less the fair value of the underlying collateral, adjusted for costs to sell when applicable. If the value of underlying collateral is determined to be less than the recorded amount of the loan, a specific reserve for that loan is recorded. If the Company determines that the loss represented by the specific reserve is uncollectable it records a charge-off for the uncollectable portion.

The Company has identified the following portfolio segments to evaluate and measure the allowance for credit loss:

Commercial: Primarily based on the cash flow of the borrower, and secondarily on the underlying collateral provided by the borrower. A borrower's cash flow may be unpredictable, and collateral securing these loans may fluctuate in value. Most often, collateral includes accounts receivable, inventory, or equipment. Collateral securing these loans may depreciate over time, may be difficult to appraise, may be illiquid and may fluctuate in value based on the success of the business. Actual and forecast changes in California gross domestic product paired with California unemployment are believed to be corollary to losses associated with these credits.

Agricultural: Loans secured by farmland represent unique risks that are associated with the operation of an agricultural business. The valuation of farmland can vary greatly over time based on the property's access to resources including but not limited to water, crop prices, foreign exchange rates, government regulation or restrictions, and the nature of ongoing capital investment needed to maintain the quality of the property. Loans secured by crop production, and livestock are especially vulnerable to two risk factors that are largely outside the control of Company and borrowers: commodity prices and weather conditions.

Real estate - residential: The most significant drivers of potential loss within the Company's residential real estate portfolio relate to general, regional, or individual changes in economic conditions and their effect on employment and borrowers cash flow. Risk in this portfolio is best measured by changes in borrower credit score and loan-to-value. Loss estimates are based on economic outlook and its effects on employment and the value of homes and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate.

Real estate - commercial: These credits are primarily susceptible to changes in the financial condition of the business operated by the property owner. This may be driven by changes in, among other things, industry challenges, factors unique to the operating geography of the borrower, change in the individual fortunes of the business owner, general economic conditions and changes in business cycles. When default is driven by issues related specifically to the business owner, collateral values tend to provide better repayment support and may result in little or no loss. Alternatively, when default is driven more by general economic conditions, the underlying collateral may have devalued more and thus result in larger losses in the event of default. The terms on these loans at origination typically have maturities from ten to twenty-five years with amortization periods from five to thirty years.

Construction: While secured by real estate, construction loans represent a greater level of risk than term real estate loans due to the nature of the additional risks associated with not only the completion of construction within an estimated time period and budget, but also the need to either sell the building or reach a level of stabilized occupancy sufficient to generate the cash flows necessary to support debt service and operating costs. The Company seeks to mitigate the additional risks associated with construction lending by requiring borrowers to comply with lower loan to value ratios and additional covenants as well as strong tertiary support of guarantors. The loss forecasting model applies the historical rate of loss for similar loans over the expected construction life of the asset as adjusted for macroeconomic factors.

Home equity lines of credit (HELOC): Similar to residential real estate term loans, HELOC performance is also primarily driven by borrower cash flows based on employment status. However, HELOCs carry additional risks associated with the fact that most of these loans are secured by a deed of trust in a position that is junior to the primary lien holder. Furthermore, the risk that as the borrower's financial strength deteriorates, the outstanding balance on these credit lines may increase as they may only be canceled by the Company if certain limited criteria are met. In addition to the allowance for credit losses maintained as a percent of the outstanding loan balance, the Company maintains additional reserves for the unfunded portion of the HELOC.

Automobile: Automobile loans are susceptible to three primary risks: non-payment due to income loss, over-extension of credit and, when the borrower is unable to pay, shortfall in collateral value, if any. Typically, non-payment is due to loss of job and will follow general economic trends in the marketplace driven primarily by rises in the unemployment rate. Loss of collateral value can be due to market demand shifts, damage to collateral itself or a combination of those factors.

Other: Other loans primarily consist of consumer loans which are similar in nature to automobile loans and overdrafts.

Unfunded commitments: The estimated credit losses associated with these unfunded lending commitments are calculated using the same models and methodologies noted above and incorporate utilization assumptions at time of default. The reserve for unfunded commitments is maintained on the balance sheet in other liabilities.

Reclassification

Some items in the prior year consolidated financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior year net income or shareholders' equity.

Accounting Standards Adopted in 2023

On January 1, 2023, the Company adopted ASU 2016-03 Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which replaces the incurred loss methodology. This is referred to as the current expected credit loss (CECL) methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized costs, including loan receivables and held-to-maturity debt securities. It also applies to off-balance sheet credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments) and net investments in certain leases. In addition, ASC 326 made changes to the accounting for available for sale debt securities.

The Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost and off-balance sheet credit exposures. Results for the reporting periods beginning after January 1, 2023 are presented under ASC 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company adopted ASC 326 using the prospective transition approach for financial assets purchased with credit deterioration (PCD) that were previously classified as purchased credit impaired (PCI) and accounted for under ASC 310-30. In accordance with the Standard, management did not reassess whether PCI assets met the criteria of PCD assets as of the date of adoption. The remaining noncredit discount (based on the adjusted amortized costs basis) will be accreted into interest income at the effective interest rate as of adoption. The Company recognized an increase in the ACL for loans totaling $529,000, as a cumulative effect adjustment from change in accounting policies, with a corresponding decrease in retained earnings, net of $156,000 in taxes. Additionally, the Company recognized an increase in the reserve for unfunded commitments of $257,000, as a cumulative effect adjustment from change in accounting policies, with a corresponding decrease in retained earnings, net of $76,000 in taxes.

On January 1, 2023, the Company adopted ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The ASU provides optional expedients and exceptions for applying GAAP to loan and lease agreements, derivative contracts, and other transactions affected by the anticipated transition away from LIBOR toward new interest rate benchmarks. For transactions that are modified because of reference rate reform and that meet certain scope guidance (i) modifications of loan agreements should be accounted for by prospectively adjusting the effective interest rate and the modification will be considered "minor" so that any existing unamortized origination fees/costs would carry forward and continue to be amortized and (ii) modifications of lease agreements should be accounted for as a continuation of the existing agreement with no reassessments of the lease classification and the discount rate or remeasurements of lease payments that otherwise would be required for modifications not accounted for as separate contracts. ASU 2020-04 also provides numerous optional expedients for derivative accounting. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. The ASU 2022-06 deferred the sunset date of ASU 2020-04 to December 2024. Once elected for a Topic or an Industry Subtopic within the Codification, the amendments in this ASU must be applied prospectively for all eligible contract modifications for that Topic or Industry Subtopic. The adoption of the ASU provisions did not have a significant impact on the Company’s consolidated financial statements as the Company has an insignificant number of financial instruments applicable to this ASU.

On January 1, 2023, the Company adopted ASU 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures. The ASU eliminates the recognition and measurement guidance for troubled debt restructurings and requires enhanced disclosures about loan modifications for borrowers experiencing financial difficulty. This ASU also requires enhanced disclosure for loans that have been charged off. The adoption of the ASU provisions did not have a significant impact on the Company’s consolidated financial statements.