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Note 7 - Segment Information - Information By Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Revenues |  | $ 245,027 |  | $ 293,656 |  | $ 328,085 |
Equity in earnings of Sisecam Wyoming |  | 18,135 |  | 73,397 |  | 59,795 |
Gain (Loss) on Disposition of Assets |  | 4,845 |  | 2,956 |  | 1,082 |
Total revenues and other income |  | 268,007 |  | 370,009 |  | 388,962 |
Compensation (salaries, benefits and bonus) |  | 16,518 |  | 18,586 |  | 17,594 |
Long-term incentive compensation (1) |  | 11,251 | [1] | 10,733 | [2] | 5,764 | [3]
Property taxes |  | 7,704 |  | 6,758 |  | 6,389 |
Depreciation, Depletion and Amortization |  | 15,535 |  | 18,489 |  | 22,519 |
Asset Impairment Charges |  | 87 |  | 556 |  | 4,457 |
Interest expense, net (2) | [4] | 15,554 |  | 14,103 |  | 26,274 |
Other segment items (3) | [5] | 17,714 |  | 22,349 |  | 27,008 |
Net income (loss) |  | 183,644 |  | 278,435 |  | 268,492 |
Total assets |  | 772,907 |  | 797,876 |  |  |
Loss on extinguishment of debt |  | 0 |  | 0 |  | 10,465 |
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
Equity in earnings of Sisecam Wyoming |  | 0 |  | 0 |  | 0 |
Gain (Loss) on Disposition of Assets |  |  |  | 0 |  |  |
Total revenues and other income |  | 0 |  | 0 |  | 0 |
Compensation (salaries, benefits and bonus) |  | 8,570 |  | 10,204 |  | 9,388 |
Long-term incentive compensation (1) |  | 9,466 | [1] | 8,711 | [2] | 4,505 | [3]
Property taxes |  | 0 |  | 0 |  | 0 |
Depreciation, Depletion and Amortization |  | 18 |  | 18 |  | 0 |
Asset Impairment Charges |  | 0 |  | 0 |  | 0 |
Interest expense, net (2) | [4] | 15,554 |  | 14,103 |  | 26,274 |
Other segment items (3) | [5] | 7,115 |  | 7,196 |  | 7,959 |
Net income (loss) |  | (40,723) |  | (40,232) |  | (58,591) |
Total assets |  | 6,425 |  | 4,483 |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 10,465 |
Mineral Rights Segment [Member] |  |  |  |  |  |  |
Depreciation, Depletion and Amortization |  | 14,800 |  | 17,300 |  | 20,900 |
Mineral Rights Segment [Member] | Operating Segments [Member] |  |  |  |  |  |  |
Revenues |  | 245,027 |  | 293,656 |  | 328,085 |
Equity in earnings of Sisecam Wyoming |  | 0 |  | 0 |  | 0 |
Gain (Loss) on Disposition of Assets |  | 4,845 |  | 2,956 |  | 1,082 |
Total revenues and other income |  | 249,872 |  | 296,612 |  | 329,167 |
Compensation (salaries, benefits and bonus) |  | 7,948 |  | 8,382 |  | 8,206 |
Long-term incentive compensation (1) |  | 1,785 | [1] | 2,022 | [2] | 1,259 | [3]
Property taxes |  | 7,704 |  | 6,758 |  | 6,389 |
Depreciation, Depletion and Amortization |  | 15,517 |  | 18,471 |  | 22,519 |
Asset Impairment Charges |  | 87 |  | 556 |  | 4,457 |
Interest expense, net (2) | [4] | 0 |  | 0 |  | 0 |
Other segment items (3) | [5] | 10,428 |  | 14,896 |  | 18,889 |
Net income (loss) |  | 206,403 |  | 245,527 |  | 267,448 |
Total assets |  | 509,127 |  | 516,844 |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 0 |
Soda Ash Segment [Member] | Operating Segments [Member] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
Equity in earnings of Sisecam Wyoming |  | 18,135 |  | 73,397 |  | 59,795 |
Gain (Loss) on Disposition of Assets |  |  |  | 0 |  |  |
Total revenues and other income |  | 18,135 |  | 73,397 |  | 59,795 |
Compensation (salaries, benefits and bonus) |  | 0 |  | 0 |  | 0 |
Long-term incentive compensation (1) |  | 0 | [1] | 0 | [2] | 0 | [3]
Property taxes |  | 0 |  | 0 |  | 0 |
Depreciation, Depletion and Amortization |  | 0 |  | 0 |  | 0 |
Asset Impairment Charges |  | 0 |  | 0 |  | 0 |
Interest expense, net (2) | [4] | 0 |  | 0 |  | 0 |
Other segment items (3) | [5] | 171 |  | 257 |  | 160 |
Net income (loss) |  | 17,964 |  | 73,140 |  | 59,635 |
Total assets |  | $ 257,355 |  | $ 276,549 |  |  |
Loss on extinguishment of debt |  |  |  |  |  | $ 0 |
[1] | Long-term incentive compensation for the year ended December 31, 2024 includes (1) Mineral Rights segment: $1.4 million of equity compensation and $0.4 million of cash compensation; (2) Corporate & Financing segment: $9.1 million of equity compensation and $0.4 of cash compensation
[2] | Long-term incentive compensation for the year ended December 31, 2023 includes (1) Mineral Rights segment: $1.4 million of equity compensation and $0.6 million of cash compensation; (2) Corporate & Financing segment: $8.4 million of equity compensation and $0.3 million of cash compensation
[3] | Long-term incentive compensation for the year ended December 31, 2022 includes (1) Mineral Rights segment: $0.8 million of equity compensation and $0.5 million of cash compensation; (2) Corporate & Financing segment: $4.1 million of equity compensation and $0.3 million of cash compensation
[4] | Included in interest expense, net was $0.7 million, $0.3 million and $0.3 million of interest income for the years ended December 31, 2024, 2023 and 2022, respectively.
[5] | Other segment items in the Mineral Rights segment primarily include: insurance, legal, overriding royalty expense, processing and transportation expense, information technology, shared facility services, rent and professional fees. Other segment items in the Soda Ash segment primarily include professional fees. Other segment items in the Corporate and Financing segment primarily include: insurance, legal, information technology, shared facility services, rent and professional fees.

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