Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOW FROM OPERATING ACTIVITIES:
Net (loss) income	$ (108,310)	$ 4,797
Adjustments to reconcile net (loss) income to net cash flow from operating activities:
Depreciation and amortization	8,845	2,864
Deferred income taxes	15,040	482
Impairment of long-lived assets	71,500	0
Amortization of debt issuance costs	1,909	0
Accretion of asset retirement obligations	0	68
Loss (gain) on sale of digital assets	10	(141)
Gain on sale of assets	(629)
Remeasurement of envronmental liability	11,109	67
Stock-based compensation expense	669	1,063
Changes in operating assets and liabilities:
Accounts receivable	(996)	21
Emissions credits/carbon offsets	1,102	258
Prepaids and other assets	(2,272)	(2,129)
Accounts payable	(800)	(870)
Accrued emissions	1,256	(1,268)
Accrued expenses	7,038	2,623
Income taxes payable	(2,316)	1,567
Net cash flow provided by operating activities	3,155	9,402
CASH FLOW FROM INVESTING ACTIVITIES:
Purchases of and deposits for property and equipment	(105,380)	(29,581)
Proceeds from sale of assets	(1,136)
Proceeds from sale of marketable securities	496
Net cash flow used in investing activities	(103,748)	(29,581)
CASH FLOW FROM FINANCING ACTIVITIES:
Proceeds from issuance of  preferred stock, net of issuance costs	0	37,112
Proceeds from issuance of common stock, net of issuance costs	5,869	0
Proceeds from stock options exercised	14	1,000
Restricted stock unit awards settled in cash for taxes	(65)	0
Proceeds from debt, net of issuance costs	96,605	15,686
Principal payments on debt	(17,574)	(1,760)
Proceeds from capital lease obligations	(0)	1,404
Repayments of capital lease obligations	(473)	(425)
Net cash flow provided by financing activities	84,376	53,017
CHANGE IN CASH AND CASH EQUIVALENTS	(16,217)	32,838
CASH AND CASH EQUIVALENTS - beginning of year	82,599	5,052
CASH AND CASH EQUIVALENTS - end of year	$ 66,382	$ 37,890