v3.26.1
UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
ASSETS    
Cash and cash equivalents $ 53,161 $ 49,708
Prepaid profit sharing 11,205 11,529
Inventories 58,799 63,648
Assets held for sale 12,216 12,774
Prepaid insurance 2,178 5,546
Other current assets 25,905 21,860
Total current assets 203,157 214,892
Property, plant and equipment, net 309,914 287,546
Intangibles, net 4,574 4,725
Mining supplies inventory 42,815 34,795
Deferred income taxes 13,861 14,001
Operating lease right-of-use assets 8,996 9,595
Equity securities 18,194 17,696
Other non-current assets 34,947 29,505
Total assets 685,656 661,228
LIABILITIES AND EQUITY    
Current maturities of long-term debt 8,959 9,080
Asset retirement obligations 6,741 8,185
Accrued payroll 9,786 19,863
Excess funding liability 5,450 5,450
Other current liabilities 10,018 10,299
Total current liabilities 61,474 69,615
Long-term debt 17,443 16,815
Long-term revolving credit agreements 100,000 75,000
Operating lease liabilities 7,451 7,950
Asset retirement obligations 37,572 39,516
Retirement benefit plans 4,447 4,558
Other long-term liabilities 20,158 18,531
Total liabilities 248,545 231,985
Common stock:    
Capital in excess of par value 43,200 42,427
Retained earnings 388,063 381,130
Accumulated other comprehensive loss (1,693) (1,741)
Total stockholders' equity 437,111 429,243
Total liabilities and equity 685,656 661,228
Unconsolidated Subsidiaries    
ASSETS    
Balance at March 31, 2026 15,513 14,750
Equity method investment in Eiger Resources 15,513 14,750
Eiger, LLC    
ASSETS    
Balance at March 31, 2026 33,685 33,723
Equity method investment in Eiger Resources 33,685 33,723
Nonrelated Party    
ASSETS    
Trade accounts receivable and accounts receivable from affiliates 33,398 42,921
LIABILITIES AND EQUITY    
Accounts payable and accounts payable to affiliates 19,872 16,060
Affiliated Entity    
ASSETS    
Trade accounts receivable and accounts receivable from affiliates 6,295 6,906
LIABILITIES AND EQUITY    
Accounts payable and accounts payable to affiliates 648 678
Class A Common Stock    
Common stock:    
Common stock 5,978 5,864
Class B Common Stock    
Common stock:    
Common stock $ 1,563 $ 1,563