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v3.25.1

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 6,891 | $ 7,232
Restricted cash | 9,316 | 4,921
Accounts receivable | 12,582 | 15,438
Inventory | 36,318 | 36,685
Parts and supplies | 40,137 | 39,104
Prepaid expenses | 1,808 | 1,478
Total current assets | 107,052 | 104,858
Property, plant and equipment: |  |
Land and mineral rights | 70,307 | 70,307
Buildings and equipment | 435,329 | 429,857
Mine development | 94,725 | 92,458
Finance lease right-of-use assets | 13,034 | 13,034
Total property, plant and equipment | 613,395 | 605,656
Less - accumulated depreciation, depletion and amortization | (360,624) | (347,952)
Total property, plant and equipment, net | 252,771 | 257,704
Equity method investments | 2,370 | 2,607
Other assets | 3,904 | 3,951
Total assets | 366,097 | 369,120
Current liabilities: |  |
Current portion of bank debt, net | 16,965 | 4,095
Accounts payable and accrued liabilities | 45,652 | 44,298
Current portion of lease financing | 7,067 | 6,912
Contract liabilities - current | 107,368 | 97,598
Total current liabilities | 177,052 | 152,903
Long-term liabilities: |  |
Bank debt, net | 4,000 | 37,394
Long-term lease financing | 6,921 | 8,749
Asset retirement obligations | 15,386 | 14,957
Contract liabilities - long-term | 42,539 | 49,121
Other | 4,851 | 1,711
Total long-term liabilities | 73,697 | 111,932
Total liabilities | 250,749 | 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 March 31, 2025 and December 31, 2024, respectively | 430 | 426
Additional paid-in capital | 190,378 | 189,298
Retained earnings (deficit) | (75,460) | (85,439)
Total stockholders' equity | 115,348 | 104,285
Total liabilities and stockholders' equity | $ 366,097 | $ 369,120

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