XML 25 R10.htm IDEA: XBRL DOCUMENT
v3.21.2

Organization and Summary of Significant Accounting Policies | 12 Months Ended
--- | ---
Jun. 30, 2021
Organization and Summary of Significant Accounting Policies |
Organization and Summary of Significant Accounting Policies | ​ NOTE 1: Organization and Summary of Significant Accounting Policies Organization. Southern Missouri Bancorp, Inc., a Missouri corporation (the Company) was organized in 1994 and is the parent company of Southern Bank (the Bank). Substantially all of the Company’s consolidated revenues are derived from the operations of the Bank, and the Bank represents substantially all of the Company’s consolidated assets and liabilities. SB Real Estate Investments, LLC is a wholly owned subsidiary of the Bank formed to hold Southern Bank Real Estate Investments, LLC. Southern Bank Real Estate Investments, LLC is a real estate investment trust (REIT) which is controlled by the investment subsidiary, and has other preferred shareholders in order to meet the requirements to be a REIT. At June 30, 2021, assets of the REIT were approximately $1.1 billion, and consisted primarily of loan participations acquired from the Bank. The Bank is primarily engaged in providing a full range of banking and financial services to individuals and corporate customers in its market areas. The Bank and Company are subject to competition from other financial institutions. The Bank and Company are subject to the regulation of certain federal and state agencies and undergo periodic examinations by those regulatory authorities. Basis of Financial Statement Presentation. The consolidated financial statements of the Company have been prepared in conformity with accounting principles generally accepted in the United States of America and general practices within the banking industry. In the normal course of business, the Company encounters two significant types of risk: economic and regulatory. Economic risk is comprised of interest rate risk, credit risk, and market risk. The Company is subject to interest rate risk to the degree that its interest-bearing liabilities reprice on a different basis than its interest-earning assets. Credit risk is the risk of default on the Company’s investment or loan portfolios resulting from the borrowers’ inability or unwillingness to make contractually required payments. Market risk reflects changes in the value of the investment portfolio, collateral underlying loans receivable, and the value of the Company’s investments in real estate. Principles of Consolidation. The consolidated financial statements include the accounts of the Company and its wholly owned subsidiary, the Bank. All significant intercompany accounts and transactions have been eliminated. Use of Estimates. The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. On July 1, 2020, the Company adopted ASU 2016-13, Financial Instruments – Credit Losses, also known as the current expected credit loss (“CECL”) standard, which created material changes to the existing critical accounting policy that existed at June 30, 2020. Effective July 1, 2020, the significant accounting policy which was considered to be the most critical in preparing the Company’s consolidated financial statements is the determination of the allowance for credit losses (“ACL”) on loans. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses, and estimated fair values of purchased loans. Cash and Cash Equivalents. For purposes of reporting cash flows, cash and cash equivalents includes cash, due from depository institutions and interest-bearing deposits in other depository institutions with original maturities of three months or less. Interest-bearing deposits in other depository institutions were $83.2 million and $6.9 million at June 30, 2021 and 2020, respectively. The deposits are held in various commercial banks with a total of $1.8 million and $0 at June 30, 2021 and 2020, respectively, exceeding the FDIC’s deposit insurance limits, as well as at the Federal Reserve and the Federal Home Loan Bank of Des Moines and Chicago. Interest-bearing Time Deposits. Interest-bearing deposits in banks mature within seven years and are carried at cost. Available for Sale Securities. Available for sale securities, which include any security for which the Company has no immediate plan to sell but which may be sold in the future, are carried at fair value. Unrealized gains and losses, net of tax, are reported in accumulated other comprehensive income (loss), a component of stockholders’ equity. All securities have been classified as available for sale. Premiums and discounts on debt securities are amortized or accreted as adjustments to income over the estimated life of the security using the level yield method. Realized gains or losses on the sale of securities is based on the specific identification method. The fair value of securities is based on quoted market prices or dealer quotes. If a quoted market price is not available, fair value is estimated using quoted market prices for similar securities. The Company does not invest in collateralized mortgage obligations that are considered high risk. For AFS securities with fair value less than amortized cost that management has no intent to sell and believes that it more likely than not will not be required to sell prior to recovery, only the credit loss component of the impairment is recognized in earnings, while the noncredit loss is recognized in accumulated other comprehensive income (loss). The credit loss component recognized in earnings is identified as the amount of principal cash flows not expected to be received over the remaining term of the security as projected based on cash flow projections, and is recorded to the ACL, by a charge to provision for credit losses. Accrued interest receivable is excluded from the estimate of credit losses. Both the ACL and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired AFS security, or, if it is more likely than not the Company will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount would be recognized in earnings with a corresponding adjustment to the security’s amortized cost basis. Because the security’s amortized cost basis is adjusted to fair value, there is no ACL in this situation. At adoption of ASU 2016-13, no impairment on AFS securities was attributable to credit. The Company will evaluate impaired AFS securities at the individual level on a quarterly basis, and will consider such factors including, but not limited to: the extent to which the fair value of the security is less than the amortized cost basis; adverse conditions specifically related to the security, an industry, or geographic area; the payment structure of the security and likelihood of the issuer to be able to make payments that may increase in the future; failure of the issuer to make scheduled interest or principal payments; any changes to the rating of the security by a rating agency; and the ability and intent to hold the security until maturity. A qualitative determination as to whether any portion of the impairment is attributable to credit risk is acceptable. There were no credit related factors underlying unrealized losses on AFS securities at June 30, 2021, and June 30, 2020. Changes in the ACL are recorded as expense. Losses are charged against the ACL when management believes the uncollectability of an AFS debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. Federal Reserve Bank and Federal Home Loan Bank Stock. The Bank is a member of the Federal Reserve and the Federal Home Loan Bank (FHLB) systems. Capital stock of the Federal Reserve and the FHLB is a required investment based upon a predetermined formula and is carried at cost. Loans. Loans are generally stated at unpaid principal balances, less the allowance for loan losses, any net deferred loan origination fees, and unamortized premiums or discounts on purchased loans. Interest on loans is accrued based upon the principal amount outstanding. The accrual of interest on loans is discontinued when, in management’s judgment, the collectability of interest or principal in the normal course of business is doubtful. The Company complies with regulatory guidance which indicates that loans should be placed in nonaccrual status when 90 days past due, unless the loan is both well-secured and in the process of collection. A loan that is “in the process of collection” may be subject to legal action or, in appropriate circumstances, through other collection efforts reasonably expected to result in repayment or restoration to current status in the near future. A loan is considered delinquent when a payment has not been made by the contractual due date. At June 30, 2021, some loans were modified under the terms of the Coronavirus Aid, Relief and Economic Security Act (the CARES Act), which provides that loans modified after March 1, 2020, due to the COVID-19 pandemic, and which were otherwise current at December 31, 2019, need not be accounted for as troubled debt restructurings (TDRs). While these loans may not have met the contractual due dates of payments under their previous terms, so long as they were compliant with the terms of the modification made under the CARES Act, they would not have been reported as delinquent at June 30, 2020 or June 30, 2021. See further disclosure in Note 3: Loans and Allowance for Loan Losses. Interest income previously accrued but not collected at the date a loan is placed on nonaccrual status is reversed against interest income. Cash receipts on a nonaccrual loan are applied to principal and interest in accordance with its contractual terms unless full payment of principal is not expected, in which case cash receipts, whether designated as principal or interest, are applied as a reduction of the carrying value of the loan. A nonaccrual loan is generally returned to accrual status when principal and interest payments are current, full collectability of principal and interest is reasonably assured, and a consistent record of performance has been demonstrated. The ACL is a valuation account that is deducted from the loans’ amortized cost basis to present the net amount expected to be collected on the loans, and is established through provision for credit losses charged to current earnings. The ACL is increased by the provision for losses on loans charged to expense and reduced by loans charged off, net of recoveries. Loans are charged off in the period deemed uncollectible, based on management’s analysis of expected cash flows (for non-collateral dependent loans) or collateral value (for collateral-dependent loans). Subsequent recoveries of loans previously charged off, if any, are credited to the allowance when received. Management estimates the ACL using relevant available information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Adjustments may be made to historical loss information for differences identified in current loan-specific risk characteristics, such as differences in underwriting standards or terms; lending review systems; experience, ability, or depth of lending management and staff; portfolio growth and mix; delinquency levels and trends; as well as for changes in environmental conditions, such as changes in economic activity or employment, agricultural economic conditions, property values, or other relevant factors. The Company generally incorporates a reasonable and supportable forecast period of four quarters, and a four-quarter, straight-line reversion period to return to long-term historical averages. The ACL is measured on a collective (pool) basis when similar risk characteristics exist. For loans that do not share general risk characteristics with the collectively evaluated pools, the Company estimates credit losses on an individual loan basis, and these loans are excluded from the collectively evaluated pools. An ACL for an individually evaluated loan is recorded when the amortized cost basis of the loan exceeds the discounted estimated cash flows using the loan’s initial effective interest rate or the fair value, less estimated costs to sell, of the collateral for certain collateral dependent loans. For the collectively evaluated pools, the Company segments the loan portfolio primarily by loan purpose and collateral into 24 pools, which are homogeneous groups of loans that possess similar loss potential characteristics. The Company primarily utilizes the discounted cash flow (“DCF”) methodology for measurement of the required ACL. For a limited number of pools with a relatively small balance of unpaid principal balance, the Company utilized the remaining life method. The DCF model implements probability of default (“PD”) and loss given default (“LGD”) calculations at the instrument level. PD and LGD are determined based on statistical analysis and correlation of historical losses with various economic factors over time. In general, the Company’s losses have not correlated well with economic factors, and the Company has utilized peer data where more appropriate. The Company defines a default as an event of charge off, an adverse (substandard or worse) internal credit rating, becoming delinquent 90 days or more, or being placed on nonaccrual status. A PD/LGD estimate is applied to a projected model of the loan’s cashflow, including principal and interest payments, with consideration for prepayment speeds, principal curtailments, and recovery lag. Prior to the July 1, 2020, adoption of ASU 2016-13, the allowance for loan and lease losses (ALLL) represented management’s best estimate of probable losses in the existing loan portfolio at the end of the reporting period. Integral to the methodology for determining the adequacy of the ALLL was portfolio segmentation and impairment measurement. Under the Company’s methodology, loans were first segmented into 1) those comprising large groups of homogeneous loans which are collectively evaluated for impairment and 2) all other loans which are individually evaluated. Those loans in the second category were further segmented utilizing a defined grading system which involves categorizing loans by severity of risk based on conditions that may affect the ability of the borrowers to repay their debt, such as current financial information, collateral valuations, historical payment experience, credit documentation, public information, and current trends. Loans were considered impaired if, based on current information and events, it was considered probable that the Company would be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement, and was generally based on the fair value, less estimated costs to sell, of the loan’s collateral. If the loan was not collateral-dependent, the measurement of impairment was based on the present value of expected future cash flows discounted at the historical effective interest rate, or the observable market price of the loan. Impairment identified through this evaluation process was a component of the ALLL. If a loan was not considered impaired, it was grouped together with loans having similar characteristics (i.e., the same risk grade), and an ALLL was based upon a quantitative factor (historical average charge-offs) and qualitative factors such as changes in lending policies; national, regional, and local economic conditions; changes in mix and volume of portfolio; experience, ability, and depth of lending management and staff; entry to new markets; levels and trends of delinquent, nonaccrual, special mention, and classified loans; concentrations of credit; changes in collateral values; agricultural economic conditions; and regulatory risk. Prior to the July 1, 2020, adoption of ASU 2016-13, loans acquired in an acquisition that had evidence of credit quality deterioration since origination and for which it was probable that the Company would be unable to collect all contractually required payments receivable were considered purchased credit impaired (“PCI”). PCI loans were individually evaluated and recorded at fair value at the date of acquisition with no initial ALLL based on a DCF methodology that considered various factors including the type of loan and related collateral, classification status, fixed or variable interest rate, term of loan and whether or not the loan was amortizing, and a discount rate reflecting the Company’s assessment of risk inherent in the cash flow estimates. The difference between the DCFs expected at acquisition and the investment in the loan, or the “accretable yield,” was recognized as interest income on a level-yield method over the life of the loan. Contractually required payments for interest and principal that exceed the DCFs expected at acquisition, or the “non-accretable difference,” were not recognized on the balance sheet and did not result in any yield adjustments, loss accruals or valuation allowances. Increases in expected cash flows, including prepayments, subsequent to the initial investment were recognized prospectively through adjustment of the yield on the loan over its remaining life. Decreases in expected cash flows were recognized as impairment. ALLL on PCI loans reflected only losses incurred after the acquisition (meaning the present value of all cash flows expected at acquisition that ultimately were not to be received). Subsequent to the July 1, 2020, adoption of ASU 2016-13, loans acquired in a business combination that have experienced more-than-insignificant deterioration in credit quality since origination are considered purchased credit deteriorated (“PCD”) loans. At the acquisition date, an estimate of expected credit losses is made for groups of PCD loans with similar risk characteristics and individual PCD loans without similar risk characteristics. This initial ACL is allocated to individual PCD loans and added to the purchase price or acquisition date fair values to establish the initial amortized cost basis of the PCD loans. As the initial ACL is added to the purchase price, there is no credit loss expense recognized upon acquisition of a PCD loan. Any difference between the unpaid principal balance of PCD loans and the amortized cost basis is considered to relate to non-credit factors and results in a discount or premium. Discounts and premiums are recognized through interest income on a level-yield method over the life of the loans. Upon adoption of ASU 2016-13, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $434,000 to the ACL. The remaining noncredit discount, based on the adjusted amortized cost basis, will be accreted into interest income at the effective interest rate as of July 1, 2020. Loan fees and certain direct loan origination costs are deferred, and the net fee or cost is recognized as an adjustment to interest income using the interest method over the contractual life of the loans. Off-Balance Sheet Credit Exposures. Off-balance sheet credit instruments include commitments to make loans, and commercial letters of credit, issued to meet customer financing needs. The Company’s exposure to credit loss in the event of non-performance by the other party to the financial instrument for off-balance sheet loan commitments is represented by the contractual amount of those instruments. Such financial instruments are recorded when they are funded. The ACL on off-balance sheet credit exposures is estimated by loan pool on a quarterly basis under the current CECL model using the same methodologies as portfolio loans, taking into consideration the likelihood that funding will occur and is included in other liabilities on the Company’s consolidated balance sheets. The Company records an ACL on off-balance sheet credit exposures, unless the commitments to extend credit are unconditionally cancelable. In prior periods the charge for credit loss expense for off-balance sheet credit exposures was included in other non-interest expense in the Company’s consolidated statements of income, whereas under updated regulatory accounting guidelines, that figure is combined with the provision for credit losses beginning July 1, 2020. Foreclosed Real Estate. Real estate acquired by foreclosure or by deed in lieu of foreclosure is initially recorded at fair value less estimated selling costs, establishing a new cost basis. Costs for development and improvement of the property are capitalized. Valuations are periodically performed by management, and an allowance for losses is established by a charge to operations if the carrying value of a property exceeds its estimated fair value, less estimated selling costs. Loans to facilitate the sale of real estate acquired in foreclosure are discounted if made at less than market rates. Discounts are amortized over the fixed interest period of each loan using the interest method. Premises and Equipment. Premises and equipment are stated at cost less accumulated depreciation and include expenditures for major betterments and renewals. Maintenance, repairs, and minor renewals are expensed as incurred. When property is retired or sold, the retired asset and related accumulated depreciation are removed from the accounts and the resulting gain or loss taken into income. The Company reviews property and equipment for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If such assets are considered to be impaired, the impairment loss recognized is measured by the amount by which the carrying amount exceeds the fair value of the assets. Depreciation is computed by use of straight-line and accelerated methods over the estimated useful lives of the assets. Estimated lives are generally seven to forty years for premises, three to seven years for equipment, and three years for software. Bank Owned Life Insurance. Bank owned life insurance policies are reflected in the consolidated balance sheets at the estimated cash surrender value. Changes in the cash surrender value of these policies, as well as a portion of the insurance proceeds received, are recorded in noninterest income in the consolidated statements of income. Intangible Assets. The Company’s intangible assets at June 30, 2021 included gross core deposit intangibles of $15.3 million with $10.1 million accumulated amortization, gross other identifiable intangibles of $3.8 million with accumulated amortization of $3.8 million, and mortgage servicing rights of $1.9 million. At June 30, 2020, the Company’s intangible assets included gross core deposit intangibles of $15.3 million with $8.7 million accumulated amortization, gross other identifiable intangibles of $3.8 million with accumulated amortization of $3.8 million, and mortgage servicing rights of $1.1 million. The Company’s core deposit intangible assets are being amortized using the straight line method, over periods ranging from five to seven years, with amortization expense expected to be approximately $1.4 million in fiscal 2022, $1.4 million in fiscal 2023, $1.4 million in fiscal 2024, $807,000 in fiscal 2025, $328,000 in fiscal 2026, and none thereafter. As of June 30, 2021, and June 30, 2020, there was no impairment indicated. Goodwill. The Company’s goodwill is evaluated annually for impairment or more frequently if impairment indicators are present. A qualitative assessment is performed to determine whether the existence of events or circumstances leads to a determination that it is more likely than not the fair value is less than the carrying amount, including goodwill. If, based on the evaluation, it is determined to be more likely than not that the fair value is less than the carrying value, then goodwill is tested further for impairment. If the implied fair value of goodwill is lower than its carrying amount, a goodwill impairment is indicated and goodwill is written down to its implied fair value. Subsequent increases in goodwill value are not recognized in the financial statements. As of June 30, 2021, there was no impairment indicated, based on a qualitative assessment of goodwill, which considered: the market value of the Company’s common stock; concentrations of credit; profitability; nonperforming assets; capital levels; and results of recent regulatory examinations. The Company believes there is no impairment of goodwil at June 30, 2021. Income Taxes. The Company accounts for income taxes in accordance with income tax accounting guidance (ASC 740, Income Taxes). The income tax accounting guidance results in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax bases of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur. Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. The term more likely than not means a likelihood of more than 50 percent; the terms examined and upon examination also include resolution of the related appeals or litigation processes, if any. A tax position that meets the more-likely-than-not recognition threshold is initially and subsequently measured as the largest amount of tax benefit that has a greater than 50 percent likelihood of being realized upon settlement with a taxing authority that has full knowledge of all relevant information. The determination of whether or not a tax position has met the more-likely-than-not recognition threshold considers the facts, circumstances, and information available at the reporting date and is subject to the management’s judgment. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized. The Company recognizes interest and penalties on income taxes as a component of income tax expense. The Company files consolidated income tax returns with its subsidiaries, the Bank and SB Real Estate Investments, LLC, with a tax year ended June 30. Southern Bank Real Estate Investments, LLC files a separate REIT return for federal tax purposes, and also files state income tax returns with a tax year ended December 31. Incentive Plans. The Company accounts for its Equity Incentive Plan (EIP), and Omnibus Incentive Plan (OIP) in accordance with ASC 718, “Share-Based Payment.” Compensation expense is based on the market price of the Company’s stock on the date the shares are granted and is recorded over the vesting period. The difference between the grant-date fair value and the fair value on the date the shares are considered earned represents a tax benefit to the Company that is recorded as an adjustment to income tax expense. Outside Directors’ Retirement. The Bank adopted a directors’ retirement plan in April 1994 for outside directors. The directors’ retirement plan provides that each non-employee director (participant) shall receive, upon termination of service on the Board on or after age 60, other than termination for cause, a benefit in equal annual installments over a five year period. The benefit will be based upon the product of the participant’s vesting percentage and the total Board fees paid to the participant during the calendar year preceding termination of service on the Board. The vesting percentage shall be determined based upon the participant’s years of service on the Board, whether before or after the reorganization date. In the event that the participant dies before collecting any or all of the benefits, the Bank shall pay the participant’s beneficiary. No benefits shall be payable to anyone other than the beneficiary, and shall terminate on the death of the beneficiary. Stock Options. Compensation cost is measured based on the grant-date fair value of the equity instruments issued, and recognized over the vesting period during which an employee provides service in exchange for the award. Earnings Per Share. Basic earnings per share available to common stockholders is computed using the weighted-average number of common shares outstanding. Diluted earnings per share available to common stockholders includes the effect of all weighted-average dilutive potential common shares outstanding during each year. Comprehensive Income. Comprehensive income consists of net income and other comprehensive income, net of applicable income taxes. Other comprehensive income includes unrealized appreciation (depreciation) on available-for-sale securities, unrealized appreciation (depreciation) on available-for-sale securities for which a portion of an other-than-temporary impairment has been recognized in income, and changes in the funded status of defined benefit pension plans. Transfers Between Fair Value Hierarchy Levels. Transfers in and out of Level 1 (quoted market prices), Level 2 (other significant observable inputs) and Level 3 (significant unobservable inputs) are recognized on the period ending date. Revisions. Certain immaterial revisions have been made to the 2019 consolidated financial statements for netting interchange expenses with interchange revenues to apply the recognition on an agency versus principal basis. These revisions did not have a significant impact on the financial statement line items impacted and have been reclassified to conform to the 2020 and 2021 presentations. These reclassifications had no effect on net income or retained earnings. The following paragraphs summarize the impact of new accounting pronouncements: In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820) - Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement. ASU 2018-13 modifies the disclosure requirements on fair value measurements in Topic 820. The amendments in this update remove disclosures that no longer are considered cost beneficial, modify/clarify the specific requirements of certain disclosures, and add disclosure requirements identified as relevant. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, with early adoption permitted for certain removed and modified disclosures. Adoption of this standard did not have a significant impact on the Company’s consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326), which the Company adopted July 1, 2020. The Update amended guidance on reporting credit losses for financial assets held at amortized cost basis and available for sale debt securities. For financial assets held at amortized cost basis, Topic 326 eliminated the probable initial recognition threshold in current GAAP and, instead, requires an entity to reflect its current estimate of all expected credit losses. The Update affects loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, and any other financial assets not excluded from the scope that have the contractual right to receive cash. Adoption was applied on a modified retrospective basis, through a cumulative-effect adjustment to retained earnings. Adoption resulted in an increase to the ACL of $8.9 million, related to the transition from the incurred loss model to the CECL ACL model, and an increase of $434,000 related to the transition from PCI to PCD methodology, relative to the ALLL as of June 30, 2020. The Company also recorded an adjustment to the reserve for unfunded commitments recorded in other liabilities of $268,000. The impact at adoption was reflected as an adjustment to beginning retained earnings, net of income taxes, in the amount of $7.2 million. In accordance with the new standard, management did not reassess whether PCI assets met the criteria of PCD assets as of the date of adoption. The adoption of ASU 2016-13 in fiscal 2021 could also impact the Company’s future earnings, perhaps materially The following table illustrates the impact of adoption of ASU 2016-13: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | July 1, 2020
​ |  | As reported |  | As reported |  | Impact of
​ |  | under |  | prior to |  | adoption
(dollars in thousands) |  | ASU 2016-13 |  | ASU 2016-13 |  | ASU 2016-13
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Loans receivable | ​ | $ | 2,142,363 | ​ | $ | 2,141,929 | ​ | $ | 434
Allowance for credit losses on loans: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Real Estate Loans: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential | ​ |  | 8,396 | ​ |  | 4,875 | ​ |  | 3,521
Construction | ​ |  | 1,889 | ​ |  | 2,010 | ​ |  | (121)
Commercial | ​ |  | 15,988 | ​ |  | 12,132 | ​ |  | 3,856
Consumer loans | ​ |  | 2,247 | ​ |  | 1,182 | ​ |  | 1,065
Commercial loans | ​ |  | 5,952 | ​ |  | 4,940 | ​ |  | 1,012
Total allowance for credit losses on loans | ​ | $ | 34,472 | ​ | $ | 25,139 | ​ | $ | 9,333
Total allowance for credit losses on off-balance sheet credit exposures | ​ | $ | 2,227 | ​ | $ | 1,959 | ​ | $ | 268
​ The above table includes the impact of ASU 2016-13 adoption for PCD assets previously classified as PCI. The change in the ACL includes $434,000 attributable to residential and commercial real estate loans, and the amortized cost basis of loans receivable was increased for those loans by that total amount. In March 2020, the CARES Act was signed into law, creating a forbearance program for federally backed mortgage loans, protects borrowers from negative credit reporting due to loan accommodations related to the National Emergency, and provides financial institutions the option to temporarily suspend certain requirements under U.S. GAAP related to troubled debt restructurings (TDR) for a limited period of time to account for the effects of COVID-19. The Company has elected to not apply ASC Subtopic 310-40 for loans eligible under the CARES Act, based on the modification’s (1) relation to COVID-19, (2) execution for a loan that was not more than 30-days past due as of December 31, 2019, and (3) execution between March 1, 2020, and the earlier of the date that falls 60 days following the termination of the declared National Emergency, or December 31, 2020. The 2021 Consolidated Appropriations Act, signed into law in December 2020, extended the window during which loans may be modified without classification as TDRs under ASC Subtopic 310-40, to the earlier of January 1, 2022, or 60 days following the termination of the declared National Emergency.

X
- References No definition available. + Details
Name: | smbc_OrganizationAndSummaryOfSignificantAccountingPoliciesAbstract
Namespace Prefix: | smbc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -URI http://asc.fasb.org/topic&trid=2122149 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -URI http://asc.fasb.org/topic&trid=2197479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration