CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Jun. 30, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 15,363,000	$ 15,217,000
Digital assets	0	348,000
Accounts receivable, net of allowance for doubtful accounts of $0 at June 30, 2023 and December 31, 2022	177,000	2,696,000
Prepaid expenses and other assets	3,577,000	6,266,000
Emissions and carbon offset credits	1,597,000	1,260,000
Income tax receivable	857,000	798,000
Current assets held for sale	1,074,000	6,473,000
Total current assets	22,645,000	33,058,000
LONG-TERM ASSETS:
Property and equipment, net	70,816,000	130,417,000
Other long-term assets	836,000	292,000
Total assets	94,297,000	163,767,000
CURRENT LIABILITIES:
Accounts payable	9,391,000	9,608,000
Accrued emissions expense	6,090,000	6,052,000
Accrued expenses	7,450,000	11,327,000
Short-term environmental liability	1,700,000	600,000
Long-term debt, current portion	3,536,000	67,161,000
Current liabilities held for sale	1,475,000	3,974,000
Total current liabilities	29,642,000	98,722,000
LONG-TERM LIABILITIES:
Long-term debt, net of current portion and deferred financing fees	86,687,000	84,585,000
Environmental liabilities	26,174,000	27,400,000
Other long-term liabilities	3,562,000	107,000
Total liabilities	146,065,000	210,814,000
COMMITMENTS AND CONTINGENCIES (NOTE 10)
STOCKHOLDERS' EQUITY:
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, 7,236,614 and $4,625,278 shares issued and outstanding as of June 30, 2023 and December 31, 2022, respectively	1,000	0
Additional paid-in capital	307,238,000	293,774,000
Cumulative translation adjustment	(330,000)	(357,000)
Accumulated deficit	(358,677,000)	(340,464,000)
Total stockholders' equity	(51,768,000)	(47,047,000)
Total liabilities and stockholders' equity	$ 94,297,000	$ 163,767,000