CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Assets
Cash and cash equivalents	$ 56,074	$ 87,840
Accounts receivable	4,100	5,613
Other current assets	5,155	9,186
Total current assets	65,329	102,639
Property, plant and mine development, net	135,722	134,544
Advances to affiliates	41,990	39,548
Other non-current assets	1,392	1,519
Equity method investments	74,113	71,635
Total assets	318,546	349,885
Liabilities and Stockholders’ Equity
Accounts payable	1,144	5,239
Accrued expenses	2,670	4,313
Payables to affiliates	5,131	6,719
Current debt obligations	26,337	26,472
Other current liabilities	833	3,363
Total current liabilities	36,115	46,106
Long-term debt, net of current portion	2,959	3,652
Operating lease liabilities, net of current portion	769	863
Other non-current liabilities	1,054	1,017
Total liabilities	40,897	51,638
Commitments and contingencies (Note 15)
Stockholders’ equity:
Common stock; $0.0001 par value, 100,000,000 shares authorized; 21,946,069 and 21,825,465 shares issued and outstanding as of June 30, 2025 and December 31, 2024, respectively	2	2
Additional paid-in capital	499,226	497,878
Accumulated deficit	(216,974)	(191,605)
Accumulated other comprehensive loss	(4,605)	(8,028)
Total stockholders’ equity	277,649	298,247
Total liabilities and stockholders’ equity	$ 318,546	$ 349,885

Accounts Payable To Affiliates, Current

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).