Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-8

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 24
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-24

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-4

SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	3 Months Ended		9 Months Ended
SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	Sep. 30, 2024 USD ($) bitcoinMiner h miningPoolOperator $ / shares MW shares	Sep. 30, 2023 USD ($) MW	Sep. 30, 2024 USD ($) operatingSegment dataCenterHostingContract bitcoinMiner h miningPoolOperator $ / shares MW shares	Sep. 30, 2023 USD ($) MW	Jan. 01, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) $ / shares	Oct. 31, 2022 $ / shares
Significant Accounting Policies [Line Items]
Crypto asset, mining pool, contract term \| h	24		24
Number of data center hosting contracts \| dataCenterHostingContract			1
Quoted price of bitcoin	$ 38,000		$ 38,000
Miner hosting revenue	0	$ 1,800,000	800,000	$ 5,800,000
Power curtailment credits	4,100,000	1,700,000	7,300,000	2,500,000
Cash, cash equivalents, restricted cash, and restricted cash equivalents	23,938,000	6,595,000	23,938,000	6,595,000		$ 54,439,000	$ 8,323,000
Cash exceeding FDIC limit	10,700,000		10,700,000
Accumulated deficit	(303,080,000)		(303,080,000)			$ (259,895,000)
Gain on fair value of digital currency, net	1,000,000.0		1,600,000
Impairment	$ 0	$ 922,000	$ 0	$ 2,231,000
Number suppliers for bitcoin miners \| bitcoinMiner	2		2
Number of mining pool operators \| miningPoolOperator	1		1
Power block allocated to facility \| MW	2.5	2.5	2.5	2.5
Colocation pilot program \| MW			20
Critical IT load with liquid cooling and redundancy requirements \| MW			16
Short-swing profits arising from trades		$ 0		$ 39,000
Number of common stock issued upon conversion of preferred stock (in shares) \| shares	1,200,000		1,200,000
Warrants outstanding (in shares) \| shares	17,585,781		17,585,781
Exercise price of warrants (in dollars per share) \| $ / shares	$ 1.39		$ 1.39				$ 0.01	$ 1.93
Number of operating segments \| operatingSegment			1
Crypto Mining
Significant Accounting Policies [Line Items]
Revenues	$ 27,100,000	$ 17,200,000	$ 104,300,000	$ 40,100,000
Restricted Stock Units (RSUs)
Significant Accounting Policies [Line Items]
Number of shares outstanding (in shares) \| shares	4,240,313		4,240,313
Data center hosting customer \| Revenue Benchmark \| Customer Concentration Risk
Significant Accounting Policies [Line Items]
Concentration risk percentage		9.50%		12.70%
Cumulative Effect, Period of Adoption, Adjusted Balance
Significant Accounting Policies [Line Items]
Accumulated deficit					$ 37,000