Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| SALES AND OPERATING REVENUES: | ||||
| Other revenues | $ 1,395 | $ 4,702 | $ 3,026 | $ 6,298 |
| Total sales and operating revenues | 101,505 | 102,825 | 205,993 | 220,549 |
| EXPENSES: | ||||
| Fuel | 15,451 | 15,063 | 30,414 | 30,273 |
| Other operating and maintenance costs | 39,132 | 28,955 | 68,288 | 57,344 |
| Cost of purchased power | 8,633 | 2,172 | 23,496 | 9,012 |
| Utilities | 3,960 | 4,507 | 9,974 | 8,659 |
| Labor | 28,812 | 26,799 | 56,200 | 53,828 |
| Depreciation, depletion and amortization | 9,905 | 5,542 | 20,511 | 20,519 |
| Asset retirement obligations accretion | 416 | 437 | 824 | 864 |
| Exploration costs | 287 | 98 | 371 | 119 |
| General and administrative | 7,552 | 7,501 | 14,410 | 14,326 |
| (Gain) loss on disposal or abandonment of assets, net | 15 | (55) | (186) | (76) |
| Total operating expenses | 114,163 | 91,019 | 224,302 | 194,868 |
| INCOME (LOSS) FROM OPERATIONS | (12,658) | 11,806 | (18,309) | 25,681 |
| Interest income | 279 | 64 | 426 | 127 |
| Interest expense | (3,776) | (3,819) | (7,746) | (7,542) |
| Loss on extinguishment of debt | (230) | |||
| Equity method investment (loss) | (244) | 197 | (365) | (39) |
| NET INCOME (LOSS) BEFORE INCOME TAXES | (16,399) | 8,248 | (26,224) | 18,227 |
| INCOME TAX EXPENSE (BENEFIT): | ||||
| Deferred | (1,164) | (1,668) | ||
| Total income tax expense (benefit) | (1,164) | (1,668) | ||
| NET INCOME (LOSS) | $ (15,235) | $ 8,248 | $ (24,556) | $ 18,227 |
| NET INCOME (LOSS) PER SHARE: | ||||
| Basic (in dollar per share) | $ (0.32) | $ 0.19 | $ (0.52) | $ 0.43 |
| Diluted (in dollar per share) | $ (0.32) | $ 0.19 | $ (0.52) | $ 0.42 |
| WEIGHTED AVERAGE SHARES OUTSTANDING | ||||
| Basic (in shares) | 47,133 | 42,619 | 46,831 | 42,798 |
| Diluted (in shares) | 47,133 | 43,048 | 46,831 | 43,434 |
| Interest Expense: | ||||
| Interest on bank debt | $ 978 | $ 1,404 | $ 1,840 | $ 2,898 |
| Other interest | 2,270 | 1,891 | 5,104 | 3,623 |
| Amortization of debt issuance costs | 528 | 524 | 802 | 1,021 |
| Total interest expense | 3,776 | 3,819 | 7,746 | 7,542 |
| Electric sales | ||||
| SALES AND OPERATING REVENUES: | ||||
| Revenues | 59,509 | 59,976 | 127,286 | 145,919 |
| Coal sales | ||||
| SALES AND OPERATING REVENUES: | ||||
| Revenues | $ 40,601 | $ 38,147 | $ 75,681 | $ 68,332 |
| X | ||||||||||
- Definition Amount of costs incurred for purchase of power that are directly related to goods produced and sold and services rendered during the reporting period. No definition available.
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- Definition Amount of amortization expense attributable to debt issuance costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Total costs of sales and operating expenses for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The aggregate costs of direct communications and utilities incurred during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fuel costs incurred that are directly related to goods produced and sold and services rendered during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of interest expense classified as other. No definition available.
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- References No definition available.
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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