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v3.25.3

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 12,663 | $ 7,232
Restricted cash | 22,819 | 4,921
Accounts receivable | 24,763 | 15,438
Inventory | 28,006 | 36,685
Parts and supplies | 44,002 | 39,104
Prepaid expenses | 4,293 | 1,478
Total current assets | 136,546 | 104,858
Property, plant and equipment: |  |
Land and mineral rights | 69,961 | 70,307
Buildings and equipment | 454,040 | 429,857
Mine development | 99,852 | 92,458
Finance lease right-of-use assets | 13,034 | 13,034
Total property, plant and equipment | 636,887 | 605,656
Less - accumulated depreciation, depletion and amortization | (370,903) | (347,952)
Total property, plant and equipment, net | 265,984 | 257,704
Equity method investments | 2,713 | 2,607
Other assets | 4,218 | 3,951
Total assets | 409,461 | 369,120
Current liabilities: |  |
Current portion of bank debt, net | 42,698 | 4,095
Accounts payable and accrued liabilities | 44,010 | 44,298
Current portion of lease financing | 7,395 | 6,912
Contract liabilities - current | 113,244 | 97,598
Total current liabilities | 207,347 | 152,903
Long-term liabilities: |  |
Bank debt, net |  | 37,394
Long-term lease financing | 3,140 | 8,749
Asset retirement obligations | 16,268 | 14,957
Contract liabilities - long-term | 34,362 | 49,121
Other | 2,156 | 1,711
Total long-term liabilities | 55,926 | 111,932
Total liabilities | 263,273 | 264,835
Commitments and contingencies (Note 16) |  |
Stockholders' equity: |  |
Preferred stock, $.10 par value, 10,000 shares authorized; none issued |  |
Common stock, $.01 par value, 100,000 shares authorized; 42,978 and 42,621 issued and outstanding, as of September 30, 2025 and December 31, 2024, respectively | 430 | 426
Additional paid-in capital | 189,086 | 189,298
Retained deficit | (43,328) | (85,439)
Total stockholders' equity | 146,188 | 104,285
Total liabilities and stockholders' equity | $ 409,461 | $ 369,120

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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration