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Accounting policies | 6 Months Ended
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Jun. 30, 2025
Accounting policies |
Accounting policies | 2. Accounting policies Basis of consolidation: The accompanying condensed consolidated financial statements include the accounts of the Company’s (i) wholly-owned subsidiaries, Aerex Industries, Inc. (“Aerex”), Aquilex, Inc. (“Aquilex”), Cayman Water Company Limited (“Cayman Water”), Consolidated Water Cooperatief, U.A. (“CW-Cooperatief”), Consolidated Water U.S. Holdings, Inc. (“CW-Holdings”), DesalCo Limited (“DesalCo”), Kalaeloa Desalco LLC (“Kalaeloa Desalco”), Ocean Conversion (Cayman) Limited (“OC-Cayman”), PERC Water Corporation ("PERC") and Ramey Environmental Compliance, Inc. (“REC”); and (ii) majority-owned subsidiaries Consolidated Water (Bahamas) Ltd. (“CW-Bahamas”), N.S.C. Agua, S.A. de C.V. (“NSC”), and Aguas de Rosarito S.A.P.I. de C.V. (“AdR”). The Company’s investment in its affiliate Ocean Conversion (BVI) Ltd. (“OC-BVI”) is accounted for using the equity method of accounting. All significant intercompany balances and transactions have been eliminated in consolidation. The accompanying interim condensed consolidated financial statements are unaudited. These condensed consolidated financial statements reflect all adjustments (which are of a normal recurring nature) that, in the opinion of management, are necessary to fairly present the Company’s consolidated financial position, results of operations and cash flows as of and for the periods presented. The consolidated results of operations for these interim periods are not necessarily indicative of the operating results for future periods, including the fiscal year ending December 31, 2025. These condensed consolidated financial statements and notes are presented in accordance with the rules and regulations of the United States Securities and Exchange Commission (“SEC”) relating to interim financial statements and in conformity with accounting principles generally accepted in the United States of America (“US GAAP”). Certain information and note disclosures normally included in annual financial statements prepared in accordance with US GAAP have been condensed or omitted in these condensed consolidated financial statements pursuant to SEC rules and regulations, although the Company believes that the disclosures made herein are adequate to make the information not misleading. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024. Foreign currency: The Company’s reporting currency is the United States dollar (“US$”). The functional currency of the Company and its foreign operating subsidiaries (other than NSC, AdR, and CW-Cooperatief) is the currency for each respective country. The functional currency for NSC, AdR, and CW-Cooperatief is the US$. NSC and AdR conduct business in US$ and Mexican pesos and CW-Cooperatief conducts business in US$ and euros. The exchange rates for the Cayman Islands dollar and the Bahamian dollar are fixed to the US$. The exchange rates for conversion of Mexican pesos and euros into US$ vary based upon market conditions. Net foreign currency gains arising from transactions and re-measurements were $16,345 and $16,602 for the three months ended June 30, 2025 and 2024, respectively, and $45,987 and $40,799 for the six months ended June 30, 2025 and 2024 are included in “Other income (expense) - Other” in the accompanying condensed consolidated statements of income. Cash and cash equivalents: Cash and cash equivalents consist of demand deposits at banks and certificates of deposit at banks with original maturities of three months or less. Cash and cash equivalents as of June 30, 2025 and December 31, 2024 include approximately $16.9 million and $5.2 million, respectively, of certificates of deposits with original maturities of three months or less. Certain transfers from the Company’s Bahamas bank accounts to Company bank accounts in other countries require the approval of the Central Bank of The Bahamas. The equivalent United States dollar cash balances held in The Bahamas as of June 30, 2025 and December 31, 2024 were approximately $14.2 million and $7.7 million, respectively. Goodwill and intangible assets: Goodwill represents the excess cost of an acquired business over the fair value of the assets and liabilities of the acquired business as of the date of acquisition. Goodwill and intangible assets recorded as a result of a business combination and determined to have an indefinite useful life are not amortized but are tested for impairment annually or upon the identification of a triggering event. Intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values and reviewed periodically for impairment. The Company evaluates the possible impairment of goodwill annually as part of its reporting process for the fourth quarter of each fiscal year. Management identifies the Company’s reporting units for goodwill impairment testing purposes, which consist of Cayman Water, the bulk segment (which is comprised of CW-Bahamas and OC-Cayman), PERC, REC, and the manufacturing segment (i.e., Aerex), and determines the carrying value of each reporting unit by assigning the assets and liabilities, including the existing goodwill and intangible assets, to those reporting units. The Company determines the fair value of each reporting unit and compares these fair values to the carrying amounts of the reporting units. To the extent the carrying amount of a reporting unit exceeds the fair value of the reporting unit, an impairment loss is recorded. ​ For the year ended December 31, 2024, the Company elected to assess qualitative factors to determine whether it was necessary to perform the quantitative goodwill impairment testing that was conducted in prior years for its reporting units. The Company assessed the relevant events and circumstances to evaluate whether it is more likely than not that the fair values of such reporting units were less than their carrying values. The events and circumstances assessed for each reporting unit included macroeconomic conditions, industry and market conditions, cost factors, overall financial performance, and other relevant events. Based upon this qualitative assessment, the Company determined that it is more likely than not that the fair values of its reporting units exceeded their carrying values as of December 31, 2024. ​ Income taxes: The Company accounts for the income taxes arising from the operations of its United States subsidiaries under the asset and liability method. Deferred tax assets and liabilities, if any, 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 carryforwards. 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. A valuation allowance is provided to the extent any deferred tax asset may not be realized. ​ The Company is not presently subject to income taxes in the other countries in which it operates. ​ Revenue recognition: Revenue is recognized when control of the promised goods or services is transferred to the Company’s customers, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. The following table presents the Company’s revenue disaggregated by revenue source. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, |  | Six Months Ended June 30,
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024
Retail revenue | ​ | $ | 8,638,026 | ​ | $ | 8,181,884 | ​ | $ | 18,049,368 | ​ | $ | 16,806,822
Bulk revenue | ​ |  | 8,274,816 | ​ |  | 8,447,958 | ​ |  | 16,686,532 | ​ |  | 16,790,052
Services revenue | ​ |  | 11,448,202 | ​ |  | 11,922,469 | ​ |  | 21,526,470 | ​ |  | 29,340,080
Manufacturing revenue | ​ |  | 5,230,035 | ​ |  | 3,926,847 | ​ |  | 11,044,094 | ​ |  | 9,231,594
Total revenue | ​ | $ | 33,591,079 | ​ | $ | 32,479,158 | ​ | $ | 67,306,464 | ​ | $ | 72,168,548
​ Services revenue consists of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, |  | Six Months Ended June 30,
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024
Construction revenue | ​ | $ | 2,825,935 | ​ | $ | 4,004,072 | ​ | $ | 5,044,167 | ​ | $ | 13,381,536
Operations and maintenance revenue | ​ |  | 8,255,408 | ​ |  | 7,068,922 | ​ |  | 15,980,704 | ​ |  | 14,168,275
Design and consulting revenue | ​ |  | 366,859 | ​ |  | 849,475 | ​ |  | 501,599 | ​ |  | 1,790,269
Total services revenue | ​ | $ | 11,448,202 | ​ | $ | 11,922,469 | ​ | $ | 21,526,470 | ​ | $ | 29,340,080
​ Retail revenue The Company produces and supplies water to end-users, including residential, commercial and governmental customers in the Cayman Islands under an exclusive retail license issued to Cayman Water by the Cayman Islands government to provide water in two of the three most populated areas on Grand Cayman. Customers are billed on a monthly basis based on metered consumption and bills are typically collected within 30 to 45 days after the billing date. Receivables not collected within 45 days subject the customer to disconnection from water service. ​ The Company recognizes revenue from retail water sales at the end of the billing cycle based on the water supplied to the customers’ premises. The amount of water supplied is determined and invoiced based upon water meter readings performed at the end of each month. All retail water contracts are month-to-month contracts. The Company has elected the “right to invoice” practical expedient for revenue recognition on its retail water sale contracts and recognizes revenue in the amount to which the Company has a right to invoice, recognizing this revenue from the transfer of goods or services to customers during the billing cycle. Bulk revenue The Company produces and supplies water to government-owned utilities in the Cayman Islands and The Bahamas. OC-Cayman provides bulk water to the Water Authority-Cayman (“WAC”), a government-owned utility and regulatory agency, under three agreements. The WAC in turn distributes such water to properties in Grand Cayman outside of Cayman Water’s retail license area. The Company sells bulk water in The Bahamas through its majority-owned subsidiary, CW-Bahamas, under two agreements with the Water and Sewerage Corporation of The Bahamas (“WSC”), which distributes such water through its own pipeline system to residential, commercial and tourist properties on the island of New Providence. The Company has elected the “right to invoice” practical expedient for revenue recognition on its bulk water sale contracts and recognizes revenue in the amount to which the Company has a right to invoice, recognizing this revenue from the transfer of goods or services to customers during the billing cycle. Services and Manufacturing revenue The Company designs, constructs, sells, operates and maintains, and provides consulting services related to water, wastewater and water reuse infrastructure through PERC. All of PERC's customers are companies or governmental entities located in the United States. The Company provides operations and maintenance and consulting services to companies and governmental entities located in the state of Colorado through REC. The Company provides design, engineering, management, procurement and construction services for desalination infrastructure through DesalCo, which serves customers in the Cayman Islands, The Bahamas and the British Virgin Islands. The Company, through Aerex, is a custom and specialty manufacturer of systems and products applicable to commercial, municipal and industrial water production and treatment. Substantially all of Aerex’s customers are U.S. companies. Kalaeloa Desalco has signed a contract with the Honolulu Board of Water Supply pursuant to which it is presently designing and expects to construct and operate a 1.7 million gallons per day seawater reverse osmosis desalination plant in Oahu, Hawaii. The Company generates construction, operations and maintenance, design and consulting revenue from PERC and DesalCo, generates construction revenue from Kalaeloa Desalco, and generates manufacturing revenue from Aerex. The Company also generates operations and maintenance and consulting revenue from REC. The Company recognizes revenue for its construction and custom/specialized manufacturing contracts over time under the input method using costs incurred (which represents work performed) to date relative to the total estimated costs at completion to measure progress toward satisfying a contract’s performance obligations as such measure best reflects the transfer of control of the promised good to the customer. Contract costs include labor, materials, subcontractor costs and other expenses. The Company follows this method since it can make reasonably dependable estimates of the revenue and costs applicable to the various stages of a contract. Under this input method, the Company records revenue and recognizes profit or loss as work on the contract progresses. The Company estimates total costs to be incurred and profit to be earned on each long-term, fixed price contract prior to the commencement of work on the contract and updates these estimates as work on the contract progresses. The cumulative amount of revenue recorded on a contract at a specified point in time is that percentage of total estimated revenue that incurred costs to date comprised of estimated total contract costs. Due to the extended time it may take to complete many of the Company’s contracts and the scope and nature of the work required to be performed on those contracts, the estimations of total revenue and costs at completion are complicated and subject to many variables and, accordingly, are subject to changes. When adjustments in estimated total contract revenue or estimated total contract costs are required, any changes from prior estimates are recognized in the current period for the inception-to-date effect of such changes. The Company recognizes the full amount of any estimated loss on a contract at the time the estimates indicate such a loss. Any contract assets are classified as current assets. Contract liabilities on uncompleted contracts, if any, are classified as current liabilities. The Company has elected the “right to invoice” practical expedient for revenue recognition on its operations and maintenance, design and consulting contracts and recognizes revenue in the amount to which the Company has a right to invoice, recognizing this revenue from the transfer of goods or services to customers during the billing cycle. ​ For the three months ended June 30, 2025 and 2024, the Company recognized $3,104,731 and $3,988,174, respectively, of its services revenue from the transfer of goods or services to customers over time. The remaining services revenue of $8,343,472 and $7,934,295, respectively, was recognized from the transfer of goods or services to customers when invoiced. For the six months ended June 30, 2025 and 2024, the Company recognized $5,284,992 and $13,385,268, respectively, of its services revenue from the transfer of goods or services to customers over time. The remaining services revenue of $16,241,478 and $15,954,812, respectively, was recognized from the transfer of goods or services to customers when invoiced. For the three and six months ended June 30, 2025 and 2024, the Company recognized all of its manufacturing revenue from the transfer of goods or services to customers over time. Revenue recognized and amounts billed on contracts in progress are summarized as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
​ | ​ | 2025 | ​ | 2024
Revenue recognized to date on contracts in progress |  | $ | 112,905,596 | ​ | $ | 114,590,991
Amounts billed to date on contracts in progress | ​ |  | (122,213,705) | ​ |  | (121,833,354)
Retainage | ​ | ​ | 2,168,473 | ​ | ​ | 2,585,952
Net contract liability | ​ | $ | (7,139,636) | ​ | $ | (4,656,411)
​ The above net balances are reflected in the accompanying condensed consolidated balance sheets as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
​ | ​ | 2025 | ​ | 2024
Contract assets |  | $ | 5,759,030 |  | $ | 4,470,243
Contract liabilities | ​ |  | (12,898,666) | ​ |  | (9,126,654)
Net contract liability | ​ | $ | (7,139,636) | ​ | $ | (4,656,411)
​ During the three and six months ended June 30, 2025, the Company adjusted prior period estimates of the total contract costs for a few of its contracts. These changes in accounting estimates resulted in an increase in the services and manufacturing segment’s income from operations by $167,904 and $445,150, respectively, for both the three and six months ended June 30, 2025. The impact to the Company’s consolidated net income was $450,619 for both the three and six months ended June 30, 2025. These adjustments increased basic and diluted earnings per share by $0.03 for both the three and six months ended June 30, 2025. As of June 30, 2025, the Company had unsatisfied or partially unsatisfied performance obligations for contracts in progress representing approximately $143.1 million in aggregate transaction price for contracts with an original expected length of greater than one year. The Company expects to earn revenue as it satisfies its performance obligations under those contracts in the amount of approximately $12.1 million during the remainder of the year ending December 31, 2025 and approximately $131.0 million thereafter. In addition, the Company recognized revenue of approximately $3.8 million for the six months ended June 30, 2025, that was included in the contract liability balance as of December 31, 2024. Practical Expedients and Exemptions The Company does not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which the Company recognizes revenue at the amount to which it has the right to invoice for services performed. ​ Comparative amounts: Revenue of $679,462 and $853,262 for the three and six months ended June 30, 2024, respectively, presented in the services segment as design and consulting revenue in the financial statements previously issued for 2024 has been reclassified to construction revenue in the services segment information for 2024 provided herein to conform to the current period’s presentation. Such reclassifications had no effect on consolidated or services segment revenue, gross profit, operating income or net income.

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