SUPPLEMENTAL BALANCE SHEET AND CASH FLOW INFORMATION - Noncash Investing and Financing Activities (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 11, 2023	Dec. 31, 2024	Dec. 31, 2023
Property Plant And Equipment [Line Items]
Accumulated deficit		$ (389,737)	$ (369,974)
Property and equipment purchases in accounts payable		108	813
Common stock issued for amendment fee to lender		0	1,000
Subscription receivable in exchange for issuance of common stock		0	698
Accrued interest added to debt principal		0	1,212
Common stock issued in exchange for equity interest	$ 900	0	869
Warrant issued in exchange for warrant asset		0	477
Common stock issued in exchange for reduction in debt		1,616	0
Right-of-use asset obtained in exchange for operating lease liability		156	0
Cash paid for interest		6,153	8,140
Cumulative Effect, Period of Adoption, Adjustment
Property Plant And Equipment [Line Items]
Accumulated deficit			(20)
Cumulative Effect, Period of Adoption, Adjustment | Revision of Prior Period, Accounting Standards Update, Adjustment
Property Plant And Equipment [Line Items]
Accumulated deficit		22	0
Miners
Property Plant And Equipment [Line Items]
Exchange of property plant and equipment for reduction in debt		0	71,755
Miner Coupons
Property Plant And Equipment [Line Items]
Exchange of property plant and equipment for reduction in debt		0	1,152
Miner Deposits
Property Plant And Equipment [Line Items]
Exchange of property plant and equipment for reduction in debt		$ 0	$ 7,381