CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents, including restricted cash	$ 7,570,000	$ 13,312,000
Digital assets	3,845,000
Digital assets		347,000
Accounts receivable	1,212,000	358,000
Prepaid expenses and current other assets	1,776,000	3,864,000
Emissions and carbon offset credits	5,474,000	5,694,000
Income tax receivable	946,000	857,000
Total current assets	20,823,000	24,432,000
LONG-TERM ASSETS:
Property and equipment, net	30,396,000	45,095,000
Other long-term assets	1,477,000	1,652,000
Long-term assets held for sale	7,184,000	0
Total assets	59,880,000	71,179,000
CURRENT LIABILITIES:
Accounts payable	2,557,000	3,495,000
Accrued emissions expense	6,146,000	10,520,000
Accrued expenses	4,171,000	6,116,000
Short-term environmental liability	1,613,000	363,000
Contract liability	2,200,000	0
Current liabilities held for sale	314,000	483,000
Total current liabilities	17,001,000	20,977,000
LONG-TERM LIABILITIES:
Long-term debt, net of deferred financing fees	69,535,000	68,710,000
Environmental liabilities	28,616,000	29,866,000
Other long-term liabilities	2,777,000	2,650,000
Total liabilities	117,929,000	122,203,000
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, 10,671,337 and 9,131,252 shares issued and outstanding as of September 30, 2024 and December 31, 2023, respectively	1,000	1,000
Additional paid-in capital	328,129,000	319,992,000
Cumulative translation adjustment	(348,000)	(345,000)
Common stock subscription receivable	0	(698,000)
Accumulated deficit	(385,831,000)	(369,974,000)
Total stockholders' deficit	(58,049,000)	(51,024,000)
Total liabilities and stockholders' deficit	$ 59,880,000	$ 71,179,000