CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
ASSETS
Cash and cash equivalents	$ 85,049	$ 41,309
Short-term investments	0	989
Accounts receivable:
Trade, net	20,749	22,465
Other receivables, net	2,234	763
Inventory, net	100,196	112,968
Prepaid expenses and other current assets	3,404	5,269
Total current assets	211,632	183,763
Property, plant, equipment, and mineral properties, net	336,255	344,338
Water rights	19,184	19,184
Long-term parts inventory, net	29,150	33,775
Long-term investments	322	3,571
Other assets, net	10,617	9,889
Total Assets	607,160	594,520
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	7,778	8,616
Accrued liabilities	11,388	9,483
Accrued employee compensation and benefits	7,976	9,842
Other current liabilities	12,941	10,062
Total current liabilities	40,083	38,003
Asset retirement obligation, net of current portion	33,669	32,354
Operating lease liabilities	2,110	780
Finance lease liabilities	1,308	1,838
Deferred other income, long-term	44,361	45,489
Other non-current liabilities	1,792	1,664
Total Liabilities	123,323	120,128
Commitments and Contingencies
Common stock, $0.001 par value; 40,000,000 shares authorized; 13,002,170 and 12,908,078 shares outstanding at June 30 2025 and December 31, 2024, respectively	14	14
Additional paid-in capital	670,021	668,445
Accumulated deficit	(164,186)	(172,055)
Less treasury stock, at cost	(22,012)	(22,012)
Total Stockholders' Equity	483,837	474,392
Total Liabilities and Stockholders' Equity	$ 607,160	$ 594,520