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Note 6 - Segment Information - Information By Segment (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Revenues |  | $ 55,681 |  | $ 70,799 |  |
Equity in earnings of Sisecam Wyoming |  | 4,610 |  | 5,450 |  |
Gain on asset sales and disposals |  | 247 |  | 165 |  |
Total revenues and other income |  | 60,538 |  | 76,414 |  |
Compensation (salaries, benefits and bonus) |  | 4,047 |  | 3,702 |  |
Long-term incentive compensation (1) |  | 2,725 | [1] | 2,915 | [2] |
Property taxes |  | 1,792 |  | 2,167 |  |
Depreciation, depletion and amortization |  | 3,989 |  | 4,654 |  |
Asset impairments |  | 20 |  | 0 |  |
Interest expense, net (2) | [3] | 2,668 |  | 3,487 |  |
Other segment items (3) | [4] | 5,044 |  | 3,276 |  |
Net income (loss) |  | 40,253 |  | 56,213 |  |
Total assets |  | 772,473 |  | 772,907 |  | $ 772,907
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  |
Equity in earnings of Sisecam Wyoming |  | 0 |  | 0 |  |
Gain on asset sales and disposals |  | 0 |  | 0 |  |
Total revenues and other income |  | 0 |  | 0 |  |
Compensation (salaries, benefits and bonus) |  | 2,109 |  | 1,726 |  |
Long-term incentive compensation (1) |  | 2,261 | [1] | 2,410 | [2] |
Property taxes |  | 0 |  | 0 |  |
Depreciation, depletion and amortization |  | 4 |  | 5 |  |
Asset impairments |  | 0 |  |  |  |
Interest expense, net (2) | [3] | 2,668 |  | 3,487 |  |
Other segment items (3) | [4] | 2,463 |  | 2,191 |  |
Net income (loss) |  | (9,505) |  | (9,819) |  |
Total assets |  | 6,114 |  | 6,425 |  |
Mineral Rights Segment [Member] | Operating Segments [Member] |  |  |  |  |  |
Revenues |  | 55,681 |  | 70,799 |  |
Equity in earnings of Sisecam Wyoming |  | 0 |  | 0 |  |
Gain on asset sales and disposals |  | 247 |  | 165 |  |
Total revenues and other income |  | 55,928 |  | 70,964 |  |
Compensation (salaries, benefits and bonus) |  | 1,938 |  | 1,976 |  |
Long-term incentive compensation (1) |  | 464 | [1] | 505 | [2] |
Property taxes |  | 1,792 |  | 2,167 |  |
Depreciation, depletion and amortization |  | 3,985 |  | 4,649 |  |
Asset impairments |  | 20 |  |  |  |
Interest expense, net (2) | [3] | 0 |  | 0 |  |
Other segment items (3) | [4] | 2,521 |  | 1,023 |  |
Net income (loss) |  | 45,208 |  | 60,644 |  |
Total assets |  | 505,073 |  | 509,127 |  |
Soda Ash Segment [Member] | Operating Segments [Member] |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  |
Equity in earnings of Sisecam Wyoming |  | 4,610 |  | 5,450 |  |
Gain on asset sales and disposals |  | 0 |  | 0 |  |
Total revenues and other income |  | 4,610 |  | 5,450 |  |
Compensation (salaries, benefits and bonus) |  | 0 |  | 0 |  |
Long-term incentive compensation (1) |  | 0 | [1] | 0 | [2] |
Property taxes |  | 0 |  | 0 |  |
Depreciation, depletion and amortization |  | 0 |  | 0 |  |
Asset impairments |  | 0 |  |  |  |
Interest expense, net (2) | [3] | 0 |  | 0 |  |
Other segment items (3) | [4] | 60 |  | 62 |  |
Net income (loss) |  | 4,550 |  | 5,388 |  |
Total assets |  | $ 261,286 |  | $ 257,355 |  |
[1] | Long-term incentive compensation for the three months ended March 31, 2025 includes (1) Mineral Rights segment: $0.3 million of equity compensation and $0.1 million of cash compensation; (2) Corporate & Financing segment: $2.2 million of equity compensation and $0.1 of cash compensation.
[2] | Long-term incentive compensation for the three months ended March 31, 2024 includes (1) Mineral Rights segment: $0.4 million of equity compensation and $0.1 million of cash compensation; (2) Corporate & Financing segment: $2.3 million of equity compensation and $0.1 of cash compensation.
[3] | Included in interest expense, net was $0.2 million and $0.1 million of interest income for the three months ended March 31, 2025 and 2024, respectively.
[4] | 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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