CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
CURRENT ASSETS:
Cash and cash equivalents, including restricted cash	$ 4,879	$ 8,619
Digital assets	8,405	6,950
Accounts receivable	423	1,493
Prepaid expenses and current other assets	2,061	2,617
Emissions and carbon offset credits	4,748	7,124
Total current assets	20,516	26,803
LONG-TERM ASSETS:
Property and equipment, net	27,153	30,299
Other long-term assets	1,861	569
Long-term assets held for sale	7,184	7,184
Total assets	56,714	64,855
CURRENT LIABILITIES:
Accounts payable	3,514	3,850
Accrued emissions expense	7,166	8,668
Accrued expenses	3,526	4,232
Short-term environmental liability	250	250
Contract liability	0	2,339
Total current liabilities	14,591	19,339
LONG-TERM LIABILITIES:
Long-term debt, net of deferred financing fees	67,170	68,068
Environmental liabilities	30,432	30,432
Other long-term liabilities	2,763	2,770
Total liabilities	114,956	120,609
COMMITMENTS AND CONTINGENCIES (NOTE 10)
STOCKHOLDERS' DEFICIT:
Preferred stock, par value $0.0001, 20,000,000 shares authorized, none outstanding	0	0
Common stock, par value $0.0001, 500,000,000 shares authorized, 14,725,374 and 13,025,627 shares issued and outstanding as of March 31, 2025 and December 31, 2024, respectively	1	1
Additional paid-in capital	337,058	334,330
Cumulative translation adjustment	0	(348)
Accumulated deficit	(395,301)	(389,737)
Total stockholders' deficit	(58,242)	(55,754)
Total liabilities and stockholders' deficit	56,714	64,855
Related Party
CURRENT LIABILITIES:
Other short-term liabilities	$ 135	$ 0