CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (26,257,000)	$ (18,183,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of debt issuance costs, commitment fees and accretion of debt discount	3,549,000	2,458,000
Related party expense to be settled with respect to common stock	313,000
Common stock issued for interest expense	26,000
Stock-based compensation expense	876,000
Depreciation	5,433,000	4,000
Amortization of right-of-use asset	250,000	20,000
Increase in digital currency from mining	(9,940,000)	(217,000)
Impairment of digital currency	627,000	5,000
Realized gain on sale of digital currency	(603,000)
Proceeds from sale of digital currency	9,982,000
Equity in net loss of investee, net of tax	10,167,000	788,000
Loss from discontinued operations, net of tax	35,000	2,906,000
Changes in operating assets and liabilities:
Decrease (increase) in prepaid expenses	717,000	(4,449,000)
Decrease in amounts due from related parties		815,000
Increase in other current assets	(241,000)	(34,000)
Increase in other assets	(83,000)	(848,000)
Decrease in accounts payable	(2,435,000)	(3,978,000)
(Decrease) increase in other accrued liabilities	(1,354,000)	4,756,000
Increase in other amounts due to related parties	325,000	776,000
Decrease in operating lease liability	(10,000)	(21,000)
Net cash used in operating activities from continuing operations	(8,623,000)	(15,202,000)
Net cash used in operating activities from discontinued operations	(90,000)	(50,000)
Net cash used in operating activities	(8,713,000)	(15,252,000)
CASH FLOWS FROM INVESTING ACTIVITIES:
Investments in joint venture, including direct payments made on behalf of joint venture	(2,285,000)	(19,072,000)
Reimbursable payments for deposits on plant and equipment made on behalf of a joint venture or joint venture partner		(11,402,000)
Reimbursement of payments for deposits on plant and equipment made on behalf of a joint venture or joint venture partner		11,402,000
Purchase of and deposits on plant and equipment	(9,986,000)	(27,745,000)
Payment of contingent value rights liability	(3,899,000)
Net cash used in investing activities	(16,170,000)	(46,817,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from insurance premium financing	295,000	4,706,000
Principal payments on insurance premium financing	(1,451,000)	(1,559,000)
Proceeds from issuance of common stock, net of issuance costs paid of $995 and $142	26,562,000	6,787,000
Proceeds from common stock to be issued, net of issuance costs of $56 and $0	4,390,000
Proceeds from warrant issuances	2,500,000
Proceeds from issuance of preferred stock		9,266,000
Proceeds from issuance of convertible promissory note	1,250,000
Net cash provided by financing activities	33,546,000	19,200,000
Net change in cash and cash equivalents and restricted cash	8,663,000	(42,869,000)
Cash and cash equivalents and restricted cash at beginning of period	8,323,000
Cash and cash equivalents and restricted cash at end of period	16,986,000	3,586,000
Cash paid during the period for:
Interest	$ 5,399,000	$ 1,427,000