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Basis of Presentation (Policies) | 6 Months Ended
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Jun. 30, 2023
Accounting Policies [Abstract] |
Consolidation | References to “the Corporation”, “Isabella”, “we”, “our”, “us”, and similar terms refer to the consolidated entity consisting of Isabella Bank Corporation and its subsidiary. References to Isabella Bank or “the Bank” refers to Isabella Bank Corporation’s subsidiary, Isabella Bank.
Basis of Accounting | The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In our opinion, all adjustments considered necessary for a fair presentation have been included. Operating results for the three and six-month periods ended June 30, 2023 are not necessarily indicative of the results that may be expected for the year ending December 31, 2023. For further information, refer to our Annual Report on Form 10-K for the year ended December 31, 2022.
Earnings Per Share | Basic earnings per common share represents income available to common shareholders divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share includes additional common shares that would have been outstanding if dilutive potential common shares had been issued. Potential common shares that may be issued relate solely to outstanding shares in the Directors Plan and grant awards under the RSP. Earnings per common share have been computed based on the following for the:
| Three Months Ended June 30 |  | Six Months Ended June 30
| 2023 |  | 2022 |  | 2023 |  | 2022
Average number of common shares outstanding for basic calculation | 7,498,584 |  |  | 7,545,001 |  |  | 7,528,251 |  |  | 7,539,799 |
Average potential effect of common shares in the Directors Plan (1) | 38,166 |  |  | 74,936 |  |  | 43,793 |  |  | 79,213 |
Average potential effect of common shares in the RSP | 30,777 |  |  | 30,208 |  |  | 29,569 |  |  | 26,345 |
Average number of common shares outstanding used to calculate diluted earnings per common share | 7,567,527 |  |  | 7,650,145 |  |  | 7,601,613 |  |  | 7,645,357 |
Net income | $ | 4,630 |  |  | $ | 5,295 |  |  | $ | 9,951 |  |  | $ | 10,029 |
Earnings per common share |  |  |  |  |  |  |
Basic | $ | 0.62 |  |  | $ | 0.70 |  |  | $ | 1.32 |  |  | $ | 1.33 |
Diluted | $ | 0.61 |  |  | $ | 0.69 |  |  | $ | 1.31 |  |  | $ | 1.31 |
(1)Exclusive of shares held in the Rabbi Trust
Available-for-sale Securities | ACL - AFS Securities: AFS securities are reviewed quarterly for possible credit impairment. In determining whether a credit-related impairment exists for debt securities, we assess whether: (a) we do not have the intent to sell the security; and (b) it is more likely than not we will not have to sell the security before recovery of its cost basis. If either of these conditions are met, any previously recognized allowances are charged-off and the security's amortized cost is written down to fair value through income. If these conditions are not met, the security is evaluated to determine whether the decline in fair value has resulted from credit losses or other factors. In order to determine the amount of the credit loss for a debt security, we calculate the recovery value by performing a discounted cash flow analysis based on the current cash flows and future cash flows we expect to recover. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. The amount of the impairment related to other risk factors is recognized as a component of other comprehensive income. Adjustments to the allowance are reported in the income statement as a provision for credit losses. We made an accounting policy election to exclude accrued interest receivable on AFS securities from the estimate of credit losses. AFS securities are charged-off against the allowance or, in the absence of any allowance, written down through income when deemed uncollectible by management, or when criteria regarding intent or requirement to sell is met.
Nonaccrual Loan Status | The accrual of interest on commercial and agricultural loans, as well as residential real estate loans, is discontinued at the time a loan is 90 days or more past due unless the credit is well-secured and in the process of short-term collection. Upon transferring a loan to nonaccrual status, we perform an evaluation to determine the net realizable value of the underlying collateral. This evaluation is used to help determine if a charge-off is necessary. Consumer loans are typically charged-off no later than 180 days past due. Past due status is based on the contractual term of the loan. In all cases, a loan is placed in nonaccrual status at an earlier date if collection of principal or interest is considered doubtful. When a loan is placed in nonaccrual status, all interest accrued in the current calendar year, but not collected, is reversed against interest income while interest accrued in prior calendar years, but not collected, is charged against the ACL. Loans may be returned to accrual status after six months of continuous performance and achievement of current payment status.
Loans Receivable | Loans that we have the intent and ability to hold in our portfolio are reported at their outstanding principal balance adjusted for any charge-offs, the ACL, and deferred fees or costs. Unless a loan has a nonaccrual status, interest income is accrued over the term of the loan based on the principal amount outstanding. Loan origination fees and certain direct loan origination costs are capitalized and recognized as a component of interest income over the term of the loan using the appropriate amortization method. Commercial and agricultural loans include loans for commercial real estate, commercial operating loans, advances to mortgage brokers, farmland and agricultural production, and loans to states and political subdivisions. Repayment of these loans is dependent upon the successful operation and management of a business. We minimize our risk by limiting the amount of direct credit exposure to any one borrower to $18,000. Borrowers with direct credit needs of more than $18,000 may be serviced through the use of loan participations with other commercial banks. Commercial and agricultural real estate loans commonly require loan-to-value limits of 80% or less. Depending upon the type of loan, past credit history, and current operating results, we may require the borrower to pledge accounts receivable, inventory, property, or equipment. Government agency guarantee may be required. Personal guarantees and/or life insurance beneficiary assignments are generally required from the owners of closely held corporations, partnerships, and sole proprietorships. In addition, we may require annual financial statements, prepare cash flow analyses, and review credit reports. We offer adjustable rate mortgages, construction loans, and fixed rate residential real estate loans which have amortization periods up to a maximum of 30 years. We consider the anticipated direction of interest rates, balance sheet duration, the sensitivity of our balance sheet to changes in interest rates, our liquidity needs, and overall loan demand to determine whether or not to sell fixed rate loans to Freddie Mac. Our lending policies generally limit the maximum loan-to-value ratio on residential real estate loans to 100% of the lower of the appraised value of the property or the purchase price. Private mortgage insurance is typically required on loans with loan-to-value ratios in excess of 80% unless the loan qualifies for government guarantees. Underwriting criteria for originated residential real estate loans generally include: •Evaluation of the borrower’s ability to make monthly payments. •Evaluation of the value of the property securing the loan. •Ensuring the payment of principal, interest, taxes, and hazard insurance does not exceed 28% of a borrower’s gross income. •Ensuring all debt servicing does not exceed 40% of income. •Verification of acceptable credit reports. •Verification of employment, income, and financial information. Appraisals are performed by independent appraisers and are reviewed for appropriateness. Generally, mortgage loan requests are reviewed by our mortgage loan committee or through a secondary market underwriting system; loans in excess of $1,000 require the approval of one or more of the following committees: Internal Loan Committee, the Executive Loan Committee, or the Board of Directors. Consumer loans include secured and unsecured personal loans. Loans are amortized for a period of up to 15 years based on the age and value of the underlying collateral. The underwriting emphasis is on a borrower’s perceived intent and ability to pay rather than collateral value. No consumer loans are sold to the secondary market.
Internal Credit Risk Ratings | Internally assigned credit risk ratings are reviewed, at a minimum, when loans are renewed or when management has knowledge of improvements or deterioration of the credit quality of individual credits. Descriptions of the internally assigned credit risk ratings for commercial and agricultural loans are as follows: 1. EXCELLENT – Substantially Risk Free Credit has strong financial condition and solid earnings history, characterized by: •High liquidity, strong cash flow, low leverage. •Unquestioned ability to meet all obligations when due. •Experienced management, with management succession in place. •Secured by cash. 2. HIGH QUALITY – Limited Risk Credit with sound financial condition and a positive trend in earnings supplemented by: •Favorable liquidity and leverage ratios. •Ability to meet all obligations when due. •Management with successful track record. •Steady and satisfactory earnings history. •If loan is secured, collateral is of high quality and readily marketable. •Access to alternative financing. •Well defined primary and secondary source of repayment. •If supported by guaranty, the financial strength and liquidity of the guarantor(s) are clearly evident. 3. HIGH SATISFACTORY – Reasonable Risk Credit with satisfactory financial condition and further characterized by: •Working capital adequate to support operations. •Cash flow sufficient to pay debts as scheduled. •Management experience and depth appear favorable. •Loan performing according to terms. •If loan is secured, collateral is acceptable and loan is fully protected. 4. LOW SATISFACTORY – Acceptable Risk Credit with bankable risks, although some signs of weaknesses are shown: •Would include most start-up businesses. •Occasional instances of trade slowness or repayment delinquency – may have been 10-30 days slow within the past year. •Management’s abilities are apparent yet unproven. •Weakness in primary source of repayment with adequate secondary source of repayment. •Loan structure generally in accordance with policy. •If secured, loan collateral coverage is marginal. To be classified as less than satisfactory, only one of the following criteria must be met. 5. SPECIAL MENTION – Criticized Credit constitutes an undue and unwarranted credit risk but not to the point of justifying a classification of substandard. The credit risk may be relatively minor yet constitutes an unwarranted risk in light of the circumstances surrounding a specific loan: •Downward trend in sales, profit levels, and margins. •Impaired working capital position. •Cash flow is strained in order to meet debt repayment. •Loan delinquency (30-60 days) and overdrafts may occur. •Shrinking equity cushion. •Diminishing primary source of repayment and questionable secondary source. •Management abilities are questionable. •Weak industry conditions. •Litigation pending against the borrower. •Loan may need to be restructured to improve collateral position or reduce payments. •Collateral or guaranty offers limited protection. •Negative debt service coverage, however the credit is well collateralized and payments are current. 6. SUBSTANDARD – Classified Credit is inadequately protected by the current net worth and paying capacity of the borrower or of the collateral pledged. There is a distinct possibility we will implement collection procedures if the loan deficiencies are not corrected. Any commercial loan placed in nonaccrual status will be rated “7” or worse. In addition, the following characteristics may apply: •Sustained losses have severely eroded the equity and cash flow. •Deteriorating liquidity. •Serious management problems or internal fraud. •Original repayment terms liberalized. •Likelihood of bankruptcy. •Inability to access other funding sources. •Reliance on secondary source of repayment. •Litigation filed against borrower. •Interest non-accrual may be warranted. •Collateral provides little or no value. •Requires excessive attention of the loan officer. •Borrower is uncooperative with loan officer. 7. VULNERABLE – Classified Credit is considered “Substandard” and warrants placing in nonaccrual status. Risk of loss is being evaluated and exit strategy options are under review. Other characteristics that may apply: •Insufficient cash flow to service debt. •Minimal or no payments being received. •Limited options available to avoid the collection process. •Transition status, expect action will take place to collect loan without immediate progress being made. 8. DOUBTFUL – Workout Credit has all the weaknesses inherent in a “Substandard” loan with the added characteristic that collection and/or liquidation is pending. The possibility of a loss is extremely high, but its classification as a loss is deferred until liquidation procedures are completed, or reasonably estimable. Other characteristics that may apply: •Normal operations are severely diminished or have ceased. •Seriously impaired cash flow. •Original repayment terms materially altered. •Secondary source of repayment is inadequate. •Survivability as a “going concern” is impossible. •Collection process has begun. •Bankruptcy petition has been filed. •Judgments have been filed. •Portion of the loan balance has been charged-off. 9. LOSS – Charge-off Credit is considered uncollectible and of such little value that their continuance as bankable assets is not warranted. This classification is for charged-off loans but does not mean that the asset has absolutely no recovery or salvage value. These loans are further characterized by: •Liquidation or reorganization under Bankruptcy, with poor prospects of collection. •Fraudulently overstated assets and/or earnings. •Collateral has marginal or no value. •Debtor cannot be located. •Over 120 days delinquent.
Fair Value Measurement, Policy [Policy Text Block] | Under fair value measurement and disclosure authoritative guidance, we group assets and liabilities measured at fair value into three levels, based on the markets in which the assets and liabilities are traded, and the reliability of the assumptions used to determine fair value, based on the prioritization of inputs in the valuation techniques. These levels are:
Level 1: | Valuation is based upon quoted prices for identical instruments traded in active markets.
Level 2: | Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market.
Level 3: | Valuation is generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in pricing the asset or liability.
The asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques maximize the use of observable inputs and minimize the use of unobservable inputs. Transfers between measurement levels are recognized at the end of reporting periods. Fair value measurement requires the use of an exit price notion which may differ from entrance pricing. Generally, we believe our assets and liabilities classified as Level 1 or Level 2 approximate an exit price notion.
Policy Loans Receivable, Policy | Loans: Loans that we have the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding principal balance adjusted for any charge-offs, the ACL, and any deferred fees or costs. Interest income on loans is accrued over the term of the loan based on the principal amount outstanding. Loan origination fees and certain direct loan origination costs are capitalized and recognized as a component of interest income over the term of the loan using the appropriate yield methods. The accrual of interest on agricultural, commercial and mortgage loans is discontinued at the time the loan is 90 days or more past due unless the credit is well secured and in the process of collection. Consumer loans are typically charged-off no later than 180 days past due. Past due status is based on contractual terms of the loan. In all cases, loans are placed in nonaccrual status or charged-off at an earlier date if collection of principal or interest is considered doubtful. For loans that are placed on nonaccrual status or charged-off, all interest accrued in the current calendar year, but not collected, is reversed against interest income while interest accrued in prior calendar years, but not collected is charged against the ACL. Interest income on loans in nonaccrual status is not recognized until qualifying for return to accrual status. Loans are returned to accrual status when all principal and interest amounts contractually due are brought current and future payments are reasonably assured. For loans not classified as nonaccrual, interest income continues to be accrued over the term of the loan based on the principal amount outstanding.
Credit Loss, Financial Instrument | ACL - Loans: The ACL on loans is calculated in accordance with ASC 326 and is deducted from the amortized cost basis of loans to present our best estimate of the net amount expected to be collected. The ACL is established through a provision for credit losses charged to earnings. Loan losses are charged against the allowance when we believe the uncollectability of the loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. We made an accounting policy election to exclude accrued interest receivable on loans from the estimate of credit losses. We evaluate the ACL on a regular basis. Our periodic review of the collectability of loans considers historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, prevailing economic conditions, and reasonable and supportable forecasts. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The ACL consists of a general component and loans individually analyzed. The general component covers loans not specifically analyzed and is based on historical loss experience, current conditions, and reasonable and supportable forecasts. The general component also includes uncertainties that we believe could affect our estimate of probable losses based on qualitative factors. Loans in nonaccrual status are individually analyzed on a loan-by-loan basis. Loans evaluated individually are not included in the general, or pooled, component of the ACL. For collateralized loans, the loan's specific allowance is measured by the fair value of the collateral approach. The specific reserve is based on the fair value of the collateral, less costs to sell if foreclosure is probable, and an allowance is established when the collateral value is lower than the carrying value of the loan. When the discounted cash flow method is used to measure the loan's specific allowance, the effective interest rate is used to discount expected cash flows to incorporate expected prepayments. An allowance is established when the discounted cash flows are lower than the carrying value of the loan. Large groups of smaller-balance, homogeneous loans are collectively evaluated for measurement of an allowance. Off Balance Sheet Credit Related Financial Instruments: In the ordinary course of business, we have entered into commitments to extend credit, including commitments under credit card arrangements, commercial lines of credit, home equity lines of credit, commercial letters of credit, and standby letters of credit. Such financial instruments are recorded only when funded. In connection with these commitments, we established an allowance for credit losses related to off-balance-sheet credit exposures. The allowance, recorded in a liability account, is calculated in accordance with ASC 326 and represents expected credit losses over the contractual period for which we are exposed to credit risk resulting from a contractual obligation to extend credit. The estimate of expected credit losses considers both the likelihood that funding will occur and the amount expected to be funded over the estimated remaining life of the commitment. The likelihood and expected amount of funding are based on historical utilization rates. No allowance is recognized if we have the unconditional right to cancel the obligation. The allowance is reported as a component of accrued interest payable and other liabilities in our consolidated balance sheets. Adjustments to the allowance are reported in our income statement as a component of provision for credit losses.

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- Definition Disclosure of accounting policy for when a loan ceases to accrue interest or other revenue because the borrower is in financial difficulty. May also describe the treatment of previously earned but uncollected interest income on loans in nonaccrual status, how cash received from borrowers is recorded on loans that are in nonaccrual status, and the policy for resuming accrual of interest. Also includes the policy for charging off uncollectible loans and trade receivables, and the policy for determining past-due or delinquency status (i.e. whether past-due status is based on how recently payments have been received or on contractual terms). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (b,d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
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- Definition Disclosure of accounting policy for investment classified as marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480832/942-320-50-5 + Details
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- Definition Disclosure of accounting policy for policy loans receivable, including the basis for determining the amount reported for loans made to policyholders against and secured by future policy benefits. May also disclose the range of interest rates charged to policyholders on such loans. + References No definition available. + Details
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