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Summary of Significant Accounting Policies (Policies) | 12 Months Ended
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Sep. 30, 2025
Accounting Policies [Abstract] |
Principles of Consolidation | Principles of Consolidation The consolidated financial statements include our accounts and the accounts of our wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Accounting Estimates | Accounting Estimates The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ significantly from those estimates.
Cash Equivalents | Cash and Cash Equivalents Cash equivalents consist of money market accounts and other highly liquid investments purchased with an original maturity of three months or less. The carrying amounts approximate fair value due to the short maturities of these investments. We maintain our cash and cash equivalents in bank accounts which may exceed federally insured limits at times. We have not experienced any losses in these accounts.
Accounts Receivable | Accounts Receivable Accounts receivable are stated at the amount we expect to collect. This amount is net of an allowance for credit losses for estimated losses resulting from the inability of our customers to make required payments and a reserve for future credit returns and pricing adjustments. The following factors are considered when determining the collectability of specific customer accounts: customer creditworthiness, past transaction history with the customer, and changes in customer payment terms or practices. In addition, overall historical collection experience, current economic industry trends, and a review of the current status of trade accounts receivable are considered when determining the required allowance for credit losses. Based on our assessment, we provide for estimated uncollectible amounts through a charge to earnings and a credit to our allowance for credit losses. Balances that remain outstanding after we have used reasonable collection efforts are written off through a charge to the allowance for credit losses and a credit to accounts receivable. Estimated reserves for future credit returns and pricing adjustments are established based on an analysis of historical patterns of credit returns and price adjustments compared to received credit returns and distribution sales for the current period. Estimated reserves for future credit returns and price adjustments are charged against revenue in the same period as the corresponding sales are recorded. The following table presents a reconciliation of the allowance for credit losses (in thousands):
|  | Year ended September 30,
|  | 2025 |  | 2024
Balance at beginning of period |  | $ | 1,562 |  |  | $ | 1,693 |
Additions |  | 6,691 |  |  | 2,090 |
Uncollectible accounts charged to allowance, net of recoveries |  | (1,836) |  |  | (2,221) |
Balance at end of period |  | $ | 6,417 |  |  | $ | 1,562 |
Inventories | Inventories Inventories are valued at the lower of cost or net realizable value using the first-in, first-out ("FIFO") method. Appropriate consideration is given to deterioration, obsolescence and other factors in evaluating net realizable value.
Property, Equipment and Improvements, Net | Property, Equipment and Improvements, Net Property, equipment and improvements are carried at cost, net of accumulated depreciation. Depreciation is provided by charges to operations using the straight-line method over the estimated asset useful lives. Furniture and fixtures, purchased software and other equipment are depreciated over a period of three years to ten years. Building improvements and buildings are depreciated over ten years and 39 years, respectively. Leasehold improvements are depreciated over the shorter of the lease term or the estimated useful life of the asset. Long-lived assets to be held and used, such as property, equipment and improvements, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Expenditures for maintenance and repairs are charged to operations as incurred, while major renewals and betterments are capitalized. The assets and related accumulated depreciation accounts are adjusted for asset retirements and disposals with the resulting gain or loss included in operations.
Identifiable Intangible Assets | Identifiable Intangible Assets Purchased proven technology, license agreements, covenants not to compete and other identifiable intangible assets are recorded at fair value when acquired in a business acquisition, or at cost when not purchased in a business acquisition. All identifiable intangible assets are amortized on a straight-line basis over their estimated useful lives of three years to 20.5 years. Useful lives for identifiable intangible assets are estimated at the time of acquisition based on the periods of time from which we expect to derive benefits from the identifiable intangible assets. Amortization of purchased and core technology is included in cost of sales in the Consolidated Statements of Operations. Amortization of all other acquired identifiable intangible assets is charged to operating expenses as a component of general and administrative expense or research and development. Identifiable intangible assets are reviewed for impairment whenever events or circumstances indicate that undiscounted expected future cash flows are not sufficient to recover the carrying value amount. Impairment losses, if any, are recorded in the period the impairment is identified. There were no impairments identified in fiscal 2025, 2024 or 2023.
Goodwill | Goodwill Goodwill represents the excess of cost over the fair value of identifiable assets acquired. Goodwill is quantitatively tested for impairment on an annual basis as of June 30, or more frequently if events or circumstances occur which could indicate impairment. We have two reportable and operating segments: our IoT Products & Services segment and our IoT Solutions segment (see Note 4 to the consolidated financial statements). We have two reporting units that have been tested individually for impairment. Our goodwill impairment tests as of June 30, 2025, June 30,2024 and June 30, 2023 indicated no impairment (see Note 3). During the fourth quarter of fiscal 2025, we assessed various qualitative factors to determine whether or not an additional goodwill impairment assessment was required as of September 30, 2025, and we concluded that no additional impairment assessment was required.
Contingent Consideration | Business Combinations Our acquisitions are accounted for under ASC 805, Business Combinations. Accordingly, the assets and liabilities of acquired companies are included in the Consolidated Balance Sheets from the acquisition date, adjusted to reflect their fair value. Intangible assets are measured and recognized at fair value and amortized over their estimated useful lives. We recognize goodwill equal to the difference between the purchase price and identifiable assets and liabilities. Acquisition-related costs are recognized as incurred. We estimate the fair value of acquired assets and liabilities as of the acquisition date utilizing either a cost or income approach. These methodologies utilize future estimates including, but not limited to, revenues attributable to customer relationships, tax rates, discount rates, royalty rates, obsolescence rates and income tax rates. The valuation of tangible and intangible assets and liabilities resulting from an acquisition is subject to management review and may change materially between the preliminary allocation and end of the purchase price allocation period of one year. Customer relationships are valued using the multi-period excess earnings method. The multi-period excess earnings method estimates the discounted net earnings attributable to the customer relationships that were acquired after considering items such as possible customer attrition. Estimated useful lives were determined based on the length and trend of projected cash flows. The length of the projected cash flow period was determined based on the expected attrition of the customer relationships, which is based on our historical experience and future expectations for renewing and extending similar customer relationships. Technology and trade names are valued using the relief from royalty method to estimate the cost savings that will accrue to the Company, which would otherwise have to pay royalties or license fees on revenue earned by using the asset. The useful lives of the assets were determined based on management’s estimate of the period of time the technology or name will be in use.
Warranties | Warranties In general, we warrant our hardware products to be free from defects in material and workmanship under normal use and service. The warranty periods generally range from one year to five years. We typically have the option to either repair or replace hardware products we deem defective with regard to material or workmanship. Estimated warranty costs are accrued in the period that the related revenue is recognized based upon an estimated average per unit repair or replacement cost applied to the estimated number of units under warranty. These estimates are based upon historical warranty incidents and are evaluated on an ongoing basis to ensure the adequacy of the warranty accrual. 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED) We also warrant our software or firmware incorporated into our products generally for a period of one year and offer to provide a bug fix or software patch within a reasonable period. We have not accrued specifically for this warranty and have not had claims specifically related to software or firmware. We are not responsible for, and do not warrant that, custom software versions, created by OEM customers based upon our software source code, will function in a particular way, will conform to any specifications or are fit for any particular purpose. Further, we do not indemnify these customers from any third-party liability as it relates to or arises from any customization or modifications made by the OEM customer.
Treasury stock | Treasury Stock We record treasury stock at cost. Treasury stock may be acquired from employees for tax withholding purposes related to vesting of restricted stock unit awards as part of our stock-based compensation program and issued pursuant to the Employee Stock Purchase Plan.
Revenue Recognition | Revenue Recognition We recognize hardware product revenue upon transfer of control of goods or services to customers in an amount that reflects the consideration we expect to receive in exchange for those goods or services. We determine the amount of revenue to be recognized through application of the following steps: •identification of the contract, or contracts with a customer; •identification of the performance obligations in the contract; •determination of the transaction price; •allocation of the transaction price to the performance obligations in the contract; and •recognition of revenue when or as we satisfy the performance obligations. Hardware Product Revenue and SmartSense by Digi Equipment Revenue and Associated Installation Fees Our hardware product revenue is derived primarily from the sale of wired and wireless hardware products to our distributors and OEM customers. Product revenue generally is recognized upon shipment of the product to a customer. Sales to authorized domestic distributors and OEM customers typically are made with certain rights of return and price adjustment provisions. Estimated reserves for future credit returns and pricing adjustments are established based on an analysis of historical patterns of credit returns and price adjustments compared to received credit returns and distribution sales for the current period. Estimated reserves for future credit returns and price adjustments are charged against revenue in the same period as the corresponding sales are recorded. Material differences between the historical trends used to determine estimated reserves and actual credit returns and pricing adjustments could result in a material change to our consolidated results of operations or financial position. Equipment revenue from SmartSense by Digi, including Jolt, and Ventus within our IoT Solutions segment is recognized upon shipment of the equipment to a customer. Installation service charges from these sales are recorded when the product is installed. Subscription and Support Services Revenue Our SmartSense by Digi, including Jolt, and Ventus subscription revenue is recorded on a monthly basis. These subscriptions are generally in a range from one year to five years, and may contain an evergreen renewal provision. Generally, our subscription renewal charges per month are the same as the original contract term. We derive service revenue from our platform-as-a-service (“PaaS”) offerings, whereby customers pay for services consumed based on the number of devices managed or monitored per month. Depending on the billing method set forth in the contract, we invoice our customers monthly, quarterly or annually either in advance or in arrears. Revenue is recognized over the life of the service term as the customer simultaneously receives and consumes the services. Because these arrangements involve repetitive services that are substantially the same from one month to the next, we apply the guidance under ASC 606-10-25-15. We utilize a time-based output method to recognize revenue over time as this properly depicts our transfer of control to the customer. These revenues are included in our IoT Products & Services segment. 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED) Digi Support Services revenues are recognized over the life of the support contract and included in our IoT Products & Services segment. Some of Digi Support Services revenue is for training and this revenue is recognized as the services are performed. Professional Services Revenue Professional services revenue is derived from our Digi Wireless Design Services contracts on either on a time-and-materials or a fixed-fee basis. These revenues, which are included in our IoT Products & Services segment are recognized as the services are performed for time-and-materials contracts or as invoiced for fixed-fee contracts. Contracts with Multiple Performance Obligations Some of our contracts with customers in IoT Products and Services and, to a much lesser extent, in IoT Solutions include multiple performance obligations. In these contracts, each performance obligation is recognized at the amount of the allocated transaction price, which is determined based on each performance obligations standalone selling price ("SSP") for the distinct obligation. The best evidence of SSP is the observable price of a product or service when we sell the goods separately in similar circumstances and to similar customers. In instances where SSP is not directly observable, we estimate SSP using information that may include market conditions. In some of our IoT Solution contracts we are providing subscription services, while retaining ownership of the equipment, we have determined there is a single performance obligation encompassing the various activities that are inputs into the service. As such, all revenue derived from the service is recognized over the subscription term of the contract ratably as a series. We have made an accounting policy election to exclude from the measurement of our revenues any sales or similar taxes we collect from customers.
Research and Development | Research and Development Research and development costs are expensed when incurred. Research and development costs include compensation, allocation of corporate costs, depreciation, utilities, professional services and prototypes. Software and firmware development costs are expensed as incurred until the point that both the technological feasibility and the proven marketability of the product are established. To date, the time period between the establishment of technological feasibility and completion of software development has been short and no significant development costs have been incurred during that period. Accordingly, we have not capitalized any software development costs to date.
Income Taxes | Income Taxes Deferred income taxes are recognized for the tax consequences in future years of differences between the tax basis of assets and liabilities and their financial reporting amounts at each year end based on enacted tax laws and statutory tax rates applicable to the periods in which the differences are expected to affect taxable income. Income tax expense is equal to the tax payable for the period and the change during the period in deferred tax assets and liabilities as well as changes in income tax reserves. We maintain valuation allowances unless it is more likely than not that all or a portion of the deferred tax assets will be realized. Changes in valuation allowances from period to period are included in our tax provision in the period of change. We recognize the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs.
Stock-Based Compensation | Stock-Based Compensation Stock-based compensation expense represents the cost of employee services received in exchange for an award of equity instruments based on the grant date fair value of the award. This cost must be recognized over the period during which an employee is required to provide the service (usually the vesting period).
Foreign Currency Translation | Foreign Currency Translation Financial position and results of operations of our international subsidiaries are measured using local currencies as the functional currency. Assets and liabilities of these operations are translated at the exchange rates in effect at the end of each reporting period. For our international subsidiaries, our statements of operations accounts are translated at the weighted average rates of exchange prevailing during each reporting period. Translation adjustments arising from the use of differing currency exchange rates from period to period are included in accumulated other comprehensive loss in stockholders’ equity. Gains and losses on foreign currency exchange transactions, as well as translation gains or losses on transactions denominated in currencies other than an entity’s functional currency, are reflected in the statement of operations. During fiscal 2025, 2024 and 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED) 2023 there were net transaction (losses) gains of $(0.1) million, $(0.1) million and $0.0 million, respectively that were recorded in other income, net. We manage our net asset or net liability position for U.S. dollar accounts in our foreign locations to reduce our foreign currency risk. We have not implemented a formal hedging strategy.
Comprehensive Income | Comprehensive Income Our comprehensive income is comprised of net income, foreign currency translation adjustments and unrealized gains and losses on available-for-sale marketable securities. These items are charged or credited to the accumulated other comprehensive loss account in stockholders’ equity.
Net Income Per Common Share | Net Income Per Common Share Basic net income per common share is calculated based on the weighted average number of common shares outstanding during the period. Diluted net income per common share is computed by dividing net income by the weighted average number of common and potentially dilutive common shares outstanding during the period. Potentially dilutive common shares of our stock result from common stock options and restricted stock units. We use the treasury stock method to calculate the weighted-average shares used in the diluted earnings per share computation. Under this method the proceeds from exercise of an option, any amount of compensation cost for future service that we have not yet recognized, and the amount of estimated tax benefits that would be recorded in paid-in capital when the option is exercised are assumed to have been used to repurchase shares in the current period. The following table is a reconciliation of the numerators and denominators in the net income per common share calculations (in thousands, except per common share data):
| Year ended September 30,
| 2025 |  | 2024 |  | 2023
Numerator: |  |  |  |  |
Net income | $ | 40,804 |  |  | $ | 22,505 |  |  | $ | 24,770 |
Denominator: |  |  |  |  |
Denominator basic net income per common share — weighted average shares outstanding | 36,959 |  |  | 36,316 |  |  | 35,820 |
Effect of dilutive securities: |  |  |  |  |
Stock options and restricted stock units | 780 |  |  | 668 |  |  | 1,049 |
Denominator diluted net income per common share — adjusted weighted average shares | 37,739 |  |  | 36,984 |  |  | 36,869 |
Net income per common share, basic | $ | 1.10 |  |  | $ | 0.62 |  |  | $ | 0.69 |
Net income per common share, diluted | $ | 1.08 |  |  | $ | 0.61 |  |  | $ | 0.67 |
Because their effect would be anti-dilutive at period end, certain potentially dilutive shares related to stock options to purchase common shares were excluded in the above computation of diluted earnings per share because the options’ exercise prices were greater than the average market price of our common shares. For the years ended September 30, 2025, 2024 and 2023, such excluded stock options were 208,603, 678,697 and 395,190, respectively.
New Accounting Pronouncements, Policy | Adopted Accounting Standards In November 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. This ASU requires entities to disclose, on an annual and interim basis, significant segment expenses that are regularly reviewed by the chief operating decision maker (“CODM”) and included within each reported measure of segment profit or loss. This amendment is effective for our fiscal year ending September 30, 2025 and interim periods within our fiscal year ending September 30, 2026. The Company adopted annual requirements under ASU 2023-07 on July 1, 2025 which has been incorporated into Note 4. Recently Issued Accounting Standards Not Yet Adopted In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40), “Disaggregation of Income Statement Expenses,” which improves disclosures about a company’s expenses and provides more detailed information about the types of expenses in commonly presented expense captions. This amendment is effective for our fiscal year ending September 30, 2028 and interim periods within our fiscal year ending September 30, 2029. We are currently assessing the impact of this guidance on our disclosures. In December 2023, FASB issued ASU 2023-09, Income Taxes (Topic 740), “Improvements to Income Tax Disclosures,” which enhances the transparency and decision usefulness of income tax disclosures. This amendment is effective for our fiscal year ending September 30, 2028 and interim periods within our fiscal year ending September 30, 2029. We are currently assessing the impact of this guidance on our disclosures.

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