(1)	Summary of Significant Accounting Policies

First Northern Community Bancorp (“Company”) is a bank holding company whose only subsidiary, First Northern Bank of Dixon (“Bank”), a California state chartered bank, conducts general banking activities, including collecting deposits and originating loans, and serves Solano, Yolo, Sacramento, Placer and El Dorado Counties. All intercompany transactions between the Company and the Bank have been eliminated in consolidation.

The accounting and reporting policies of the Company conform with accounting principles generally accepted in the United States of America. In preparing the consolidated 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 period. Actual results could differ from those estimates applied in the preparation of the accompanying consolidated financial statements. For the Company, the most significant accounting estimates are the allowance for loan losses, recognition and measurement of impaired loans, other-than-temporary impairment of securities, fair value measurements, share based compensation, valuation of mortgage servicing rights and deferred tax asset realization. A summary of the significant accounting policies applied in the preparation of the accompanying consolidated financial statements follows.

(a)	Cash Equivalents

For purposes of the consolidated statements of cash flows, the Company considers due from banks, federal funds sold for one-day periods and short-term bankers acceptances to be cash equivalents.

(b)	Investment Securities

Investment securities consist of U.S. Treasury securities, U.S. Agency securities, obligations of states and political subdivisions, obligations of U.S. Corporations, mortgage-backed securities and other securities. At the time of purchase of a security the Company designates the security as held-to-maturity or available-for-sale, based on its investment objectives, operational needs, and intent to hold. The Company does not purchase securities with the intent to engage in trading activity.

Held-to-maturity securities are recorded at amortized cost, adjusted for amortization or accretion of premiums or discounts. Available-for-sale securities are recorded at fair value with unrealized holding gains and losses, net of the related tax effect, reported as a separate component of stockholders' equity until realized.

Investments with fair values that are less than amortized cost are considered impaired. Impairment may result from either a decline in the financial condition of the issuing entity or, in the case of fixed interest rate investments, from rising interest rates. At each consolidated financial statement date, management assesses each investment to determine if investments are impaired and if the impairment is other than temporary. This assessment includes a determination of whether the Company intends to sell the security, or if it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis less any current-period credit losses. For debt securities that are considered other than temporarily impaired and that the Company does not intend to sell and will not be required to sell prior to recovery of the amortized cost basis, the amount of impairment is separated into the amount that is credit related (credit loss component) and the amount due to all other factors. The credit loss component is recognized in earnings and is calculated as the difference between the security's amortized cost basis and the present value of its expected future cash flows. The remaining difference between the security's fair value and the present value of the future expected cash flows is deemed to be due to factors that are not credit related and is recognized in other comprehensive income (loss).

(c)

Loans

Loans are reported at the principal amount outstanding, net of deferred loan fees and the allowance for loan losses. A loan is considered impaired when, based on current information and events; it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement, including scheduled interest payments. For a loan that has been restructured, the contractual terms of the loan agreement refer to the contractual terms specified by the original loan agreement, not the contractual terms specified by the restructuring agreement. An impaired loan is measured based upon the present value of future cash flows discounted at the loan's effective rate, the loan's observable market price, or the fair value of collateral if the loan is collateral dependent. Interest on impaired loans is recognized on a cash basis. If the measurement of the impaired loan is less than the recorded investment in the loan, an impairment is recognized by a charge to the allowance for loan losses.

Unearned discount on installment loans is recognized as income over the terms of the loans by the interest method. Interest on other loans is calculated by using the simple interest method on the daily balance of the principal amount outstanding.

Loan fees net of certain direct costs of origination, which represent an adjustment to interest yield are deferred and amortized over the contractual term of the loan using the interest method.

Loans on which the accrual of interest has been discontinued are designated as non-accrual loans. Accrual of interest on loans is discontinued either when reasonable doubt exists as to the full and timely collection of interest or principal or when a loan becomes contractually past due by ninety days or more with respect to interest or principal. When a loan is placed on non-accrual status, all interest previously accrued but not collected is reversed against current period interest income. Interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of management, the loans are estimated to be fully collectible as to both principal and interest. Restructured loans are loans on which concessions in terms have been granted because of the borrowers' financial difficulties. A restructuring constitutes a troubled debt restructuring, and thus an impaired loan, if the restructuring constitutes a concession and the debtor is experiencing financial difficulties. Accrual of interest on loans that are troubled debt restructurings commence after a sustained period of performance. Interest is generally accrued on such loans in accordance with the new terms.

(d)	Loans Held-for-Sale

Loans originated and held-for-sale are carried at the lower of cost or estimated fair value in the aggregate. Net unrealized losses are recognized through a valuation allowance by charges to income.

(e)	Allowance for Loan Losses

The allowance for loan losses is established through a provision charged to expense. Loan losses are charged off against the allowance for loan losses when management believes that the collectability of the principal is unlikely. The allowance is an amount that management believes will be adequate to absorb losses inherent in existing loans and overdrafts on evaluations of collectability and prior loss experience. The evaluations take into consideration such factors as changes in the nature and volume of the portfolio, overall portfolio quality, loan concentrations, specific problem loans, commitments, and current and anticipated economic conditions that may affect the borrowers' ability to pay. While management uses these evaluations to determine the allowance for loan losses, additional provisions may be necessary based on changes in the factors used in the evaluations.

Material estimates relating to the determination of the allowance for loan losses are particularly susceptible to significant change in the near term. Management believes that the allowance for loan losses is adequate. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions and other factors. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Bank's allowance for loan losses. Such agencies may require the Bank to recognize additional allowance based on their judgment about information available to them at the time of their examination.

(f)	Premises and Equipment

Premises and equipment are stated at cost, less accumulated depreciation. Depreciation is computed substantially by the straight-line method over the estimated useful lives of the related assets. Leasehold improvements are depreciated over the estimated useful lives of the improvements or the terms of the related leases, whichever is shorter. The useful lives used in computing depreciation are as follows:

Buildings and improvements		15 to 50 years
Furniture and equipment		3 to 10 years

(g)	Other Real Estate Owned

Other real estate acquired by foreclosure is carried at fair value less estimated selling costs. Prior to foreclosure, the value of the underlying loan is written down to the fair value of the real estate to be acquired by a charge to the allowance for loan losses, if necessary. Fair value of other real estate owned is generally determined based on an appraisal of the property. Any subsequent operating expenses or income, reduction in estimated values and gains or losses on disposition of such properties are included in other operating expenses.

Gain recognition on the disposition of real estate is dependent upon the transaction meeting certain criteria relating to the nature of the property sold and the terms of the sale. Under certain circumstances, revenue recognition may be deferred until these criteria are met.

The Bank held other real estate owned (“OREO”) net of valuation allowance in the amount of $1,325 and $2,682 as of December 31, 2011 and 2010, respectively.

(h)	Impairment of Long-Lived Assets and Long-Lived Assets to Be Disposed Of

Long-lived assets and certain identifiable intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.

(i)	Gain or Loss on Sale of Loans and Servicing Rights

Retained interests in loans sold are measured by allocating the previous carrying amount of the transferred assets between the loans sold and retained interests, if any, based on their relative fair value at the date of transfer. Fair values are estimated using discounted cash flows based on a current market interest rate.

A sale is recognized when the transaction closes and the proceeds are other than beneficial interests in the assets sold. A gain or loss is recognized to the extent that the sales proceeds and the fair value of the servicing asset exceed or are less than the book value of the loan. Additionally, a normal cost for servicing the loan is considered in the determination of the gain or loss.

When servicing rights are sold, a gain or loss is recognized at the closing date to the extent that the sales proceeds, less costs to complete the sale, exceeded or are less than the carrying value of the servicing rights held.

Transfers and servicing of financial assets and extinguishments of liabilities are accounted for and reported based on consistent application of a financial-components approach that focuses on control. Transfers of financial assets that are sales are distinguished from transfers that are secured borrowings. Retained interests (mortgage servicing rights) in loans sold are measured by allocating the previous carrying amount of the transferred assets between the loans sold and retained interest, if any, based on their relative fair value at the date of transfer. Fair values are estimated using discounted cash flows based on a current market interest rate.

The Company recognizes a gain and a related asset for the fair value of the rights to service loans for others when loans are sold. The Company sold substantially all of its conforming long-term residential mortgage loans originated during the years ended December 31, 2011, 2010 and 2009 for cash proceeds equal to the fair value of the loans.

The Company determines its classes of servicing assets based on the asset type being serviced along with the methods used to manage the risk inherent in the servicing assets, which includes the market inputs used to value the servicing assets. The Company measures its residential mortgage servicing assets at fair value and reports changes in fair value through earnings. Fair value adjustments that encompass market-driven valuation changes and the runoff in value that occurs from the passage of time are each separately reported. Under the fair value method, the mortgage servicing rights (MSR) is carried in the balance sheet at fair value and the changes in fair value are reported in earnings under Other income in the period in which the change occurs.

Retained mortgage servicing rights are measured at fair value as of the date of sale. The Company uses quoted market prices when available. Subsequent fair value measurements are determined using a discounted cash flow model. In order to determine the fair value of the MSR, the present value of expected future cash flows is estimated. Assumptions used include market discount rates, anticipated prepayment speeds, delinquency and foreclosure rates, and ancillary fee income. This model is periodically validated by an independent external model validation group. The model assumptions and the MSR fair value estimates are also compared to observable trades of similar portfolios as well as to MSR broker valuations and industry surveys, as available. Key assumptions used in measuring the fair value of MSR as of December 31 were as follows:

	2011			2010			2009

Constant prepayment rate		19.87	%		18.77	%		15.15	%
Discount rate		11.06	%		11.06	%		11.07	%
Weighted average life (years)		4.15			4.37			5.33

The expected life of the loan can vary from management's estimates due to prepayments by borrowers, especially when rates fall. Prepayments in excess of management's estimates would negatively impact the recorded value of the mortgage servicing rights. The value of the mortgage servicing rights is also dependent upon the discount rate used in the model, which we base on current market rates. Management reviews this rate on an ongoing basis based on current market rates. A significant increase in the discount rate would reduce the value of mortgage servicing rights.

(j)	Income Taxes

The Company accounts for income taxes under the asset and liability method. Under the asset and liability method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

In 2002, the Bank made a $2,355 equity investment in a partnership, which owns low-income affordable housing projects that generate tax benefits in the form of federal and state housing tax credits. In 2004, the Bank transferred the amortized cost of the equity investment to a similar equity investment partnership which owns low-income affordable housing projects that generate tax benefits in the form of federal and state tax credits. In 2008, 2009 and 2010 the Bank made equity investments totaling $1,000 in a partnership which owns low-income affordable housing projects that generate tax benefits in the form of federal and state tax credits. As a limited partner investor in these partnerships, the Company receives tax benefits in the form of tax deductions from partnership operating losses and federal and state income tax credits. The federal and state income tax credits are earned over a 10-year period as a result of the investment property meeting certain criteria and are subject to recapture for non-compliance with such criteria over a 15-year period. The expected benefit resulting from the low-income housing tax credits is recognized in the period for which the tax benefit is recognized in the Company's consolidated tax returns. These investments are accounted for using the effective yield method and are recorded in other assets on the balance sheet. Under the effective yield method, the Company recognizes tax credits as they are allocated and amortizes the initial cost of the investment to provide a constant effective yield over the period that tax credits are allocated to the Company. The effective yield is the internal rate of return on the investment, based on the cost of the investment and the guaranteed tax credits allocated to the Company. Any expected residual value of the investment was excluded from the effective yield calculation. Cash received from operations of the limited partnership or sale of the property, if any, will be included in earnings when realized or realizable.

(k)	Share Based Compensation

The Company accounts for stock-based payment transactions whereby the Company receives employee services in exchange for equity instruments, including stock options and restricted stock. The Company recognizes in the consolidated statements of operations the grant-date fair value of stock options and other equity-based forms of compensation issued to employees over their requisite service period (generally the vesting period). The fair value of options granted is determined on the date of the grant using a Black-Sholes-Merton pricing model using various assumptions. The grant date fair value of restricted stock is determined by the closing market price of the day prior to the grant date. The Company issues new shares of common stock upon the exercise of stock options. See Note 14 of Notes to Consolidated Financial Statements (page 92).

(l)	Earnings (Loss) Per Share (“EPS”)

Basic EPS includes no dilution and is computed by dividing income available to common shareholders by the weighted-average number of common shares outstanding for the period, excluding non-vested restricted shares. Diluted EPS reflects the potential dilution of securities that could share in the earnings of an entity. The number of potential common shares included in annual diluted EPS is a year to date average of the number of potential common shares included in each quarter's diluted EPS computation under the treasury stock method. The calculation of weighted average shares includes two classes of the Company's outstanding common stock: common stock and restricted stock awards. Holders of restricted stock also receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. See Note 11 of Notes to Consolidated Financial Statements (page 90).

(m)	Comprehensive Income

Accounting principles generally accepted in the United States require that recognized revenue, expenses, gains, and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gain and losses on available-for-sale securities, are reported as a separate component of the equity section of the consolidated balance sheet, such items, along with net income, are components of comprehensive income.

(n)	Fiduciary Powers

On July 1, 2002, the Bank received trust powers from applicable regulatory agencies and on that date began to offer fiduciary services for individuals, businesses, governments, and charitable organizations in the Solano, Yolo, Sacramento, Placer and El Dorado County areas. The Bank's full-service asset management and trust department, which offers and manages such fiduciary services, is located in downtown Sacramento.

(o)	Impact of Recently Issued Accounting Standards

In April 2011, FASB issued ASU 2011-02. This update provides additional guidance in determining whether a restructuring constitutes a troubled debt restructuring. In evaluating whether a restructuring is a troubled debt restructuring, a creditor must separately conclude that the restructuring constitutes a concession and the debtor is experiencing financial difficulties. The amendment clarifies the guidance on a creditor's evaluation of whether it has granted a concession and whether a debtor is experiencing financial difficulties. The amendments in this update are effective for the first interim or annual period beginning on or after June 15, 2011, and should be applied retrospectively to the beginning of the annual period of adoption. Adoption of the new guidance did not have a significant impact on the Company's consolidated financial statements.

In May 2011, the Financial Accounting Standards Board (“FASB”) issued ASU 2011-04. This update represents the converged guidance of the FASB and the International Accounting Standards Board (the Boards) on fair value measurement. The collective efforts of the Boards and their staffs have resulted in common requirements for measuring fair value and for disclosing information about fair value measurements, including a consistent meaning of the term “fair value.” The amendments in this ASU are to be applied prospectively and are effective during interim and annual periods beginning after December 15, 2011. The Company does not expect the adoption of this update to have a significant impact on its consolidated financial statements.

In June 2011, FASB issued ASU 2011-05. This update allows an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. In both choices, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. This update eliminates the option to present the components of other comprehensive income as part of the statement of changes in stockholders' equity. The amendments in this ASU are to be applied retrospectively and are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. The Company does not expect the adoption of this update to have a significant impact on its consolidated financial statements. In December 2011, FASB issued ASU-2011-12. This update defers the effective date for amendments to the presentation of reclassifications of items out of accumulated other comprehensive income in ASU 2011-05.

In December 2011, FASB issued ASU 2011-11. The amendments in this ASU require an entity to disclose information about offsetting and related arrangements to enable users of its financial statements to understand the effect of those arrangements on its financial position. The amendments in this ASU are required for annual reporting periods beginning on or after January 1, 2013, and interim periods within those annual periods. The disclosures required by those amendments should be provided retrospectively for all comparative periods presented. The Company does not expect the adoption of this update to have a significant impact on its consolidated financial statements.

(p)	Reclassifications

Certain reclassifications have been made to the prior years' consolidated financial statements to conform to the current year's presentation.