CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
REVENUE:
Total revenue	$ 13,057,000	$ 14,710,000	$ 32,390,000	$ 29,867,000
OPERATING COSTS AND EXPENSES:
Selling, general and administrative	4,177,000	7,049,000	9,664,000	16,062,000
Depreciation	3,285,000	3,165,000	6,519,000	6,985,000
Impairment of long-lived assets	0	0	169,000	0
Loss (gain) on digital assets	11,000	0	(48,000)	0
Gain on sale of assets	(32,000)	(8,000)	(32,000)	(1,752,000)
Total operating costs and expenses	16,757,000	21,347,000	37,906,000	42,171,000
Operating loss	(3,700,000)	(6,637,000)	(5,516,000)	(12,304,000)
OTHER INCOME (EXPENSE), NET:
Interest expense, net	(1,805,000)	(3,112,000)	(3,607,000)	(6,685,000)
Change in fair value of warrant asset	0	0	(420,000)	0
Gain on sale of digital assets	0	0	0	398,000
Other expense, net	0	(4,000)	0	(4,000)
Total other expense, net	(1,805,000)	(3,116,000)	(4,027,000)	(6,291,000)
Loss from continuing operations before income taxes	(5,505,000)	(9,753,000)	(9,543,000)	(18,595,000)
Benefit from income taxes	0	0	0	0
Net loss from continuing operations	(5,505,000)	(9,753,000)	(9,543,000)	(18,595,000)
Income (loss) from discontinued operations, net of tax	(63,000)	(289,000)	31,000	382,000
Net loss	(5,568,000)	(10,042,000)	(9,512,000)	(18,213,000)
Comprehensive Loss
Net loss	(5,568,000)	(10,042,000)	(9,512,000)	(18,213,000)
Foreign currency translation adjustment	0	10,000	(3,000)	27,000
Comprehensive loss	$ (5,568,000)	$ (10,032,000)	$ (9,515,000)	$ (18,186,000)
Net (loss) income per share, basic and diluted:
Net loss per share from continuing operations, basic (in dollars per share)	$ (0.55)	$ (1.52)	$ (0.98)	$ (3.17)
Net loss per share from continuing operations, diluted (in dollars per share)	(0.55)	(1.52)	(0.98)	(3.17)
(Loss) income per share from discontinued operations, basic (in dollars per share)	(0.01)	(0.05)	0	0.07
(Loss) income per share from discontinued operations, diluted (in dollars per share)	(0.01)	(0.05)	0.00	0.07
Net loss per share, basic (in dollars per share)	(0.56)	(1.57)	(0.98)	(3.10)
Net loss per share, diluted (in dollars per share)	$ (0.56)	$ (1.57)	$ (0.98)	$ (3.10)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic (in shares)	9,966,000	6,399,000	9,730,000	5,874,000
Diluted (in shares)	9,966,000	6,399,000	9,730,000	5,874,000
Datacenter hosting
REVENUE:
Total revenue	$ 6,645,000	$ 9,660,000	$ 15,757,000	$ 16,604,000
OPERATING COSTS AND EXPENSES:
Cost of revenue	4,685,000	6,727,000	11,703,000	11,398,000
Cryptocurrency mining
REVENUE:
Total revenue	4,775,000	3,980,000	11,774,000	10,431,000
OPERATING COSTS AND EXPENSES:
Cost of revenue	3,234,000	2,933,000	6,905,000	6,181,000
Power and capacity
REVENUE:
Total revenue	1,487,000	1,070,000	4,524,000	2,832,000
OPERATING COSTS AND EXPENSES:
Cost of revenue	1,297,000	1,481,000	2,843,000	3,297,000
EPCM consulting services
REVENUE:
Total revenue	150,000	0	335,000	0
OPERATING COSTS AND EXPENSES:
Cost of revenue	$ 100,000	$ 0	$ 183,000	$ 0