CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
OPERATING ACTIVITIES FROM OPERATIONS:
Net loss	$ (9,682)	$ (9,512)
Adjustments to reconcile net loss from operations to net cash flow from operating activities:
Depreciation	6,310	6,519
Change in fair value of warrant asset	0	420
Amortization of debt issuance costs (debt premium)	(738)	529
Impairment of long-lived assets	0	169
Loss (gain) on sale of assets	355	(32)
Stock-based compensation expense	921	1,381
Revenues from digital assets production	(8,461)	(11,774)
Proceeds from sale of digital assets	0	11,141
Gain on digital assets	(1,110)	(48)
Gain on insurance proceeds	(399)	0
Loss on liquidation of foreign subsidiary	348	0
Changes in operating assets and liabilities:
Accounts receivable	258	173
Emissions and carbon offset credits	2,376	2,040
Prepaids and other assets	964	1,690
Income tax receivable	(103)	0
Accounts payable	(1,087)	(1,311)
Accrued emissions	887	(7,040)
Accrued expenses	(206)	(1,387)
Contract liabilities	(1,478)	0
Related party payable	1,621	380
Other	(1,299)	165
Net cash flow used for operating activities	(10,523)	(6,497)
INVESTING ACTIVITIES FROM OPERATIONS:
Purchases of and deposits for property and equipment	(2,460)	(4,105)
Proceeds from sale of assets	733	422
Proceeds from insurance claim	399	0
Proceeds from sale of digital assets	9,222	89
Net cash flow provided by (used for) investing activities	7,894	(3,594)
FINANCING ACTIVITIES FROM OPERATIONS:
Proceeds from issuance of common stock, net of issuance costs	0	1,038
Proceeds from issuance of common stock and pre-funded warrants	0	6,000
Principal payments on debt	(2,593)	0
Net cash flow (used for) provided by financing activities	(2,593)	7,038
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(5,222)	(3,053)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH - beginning of year	8,619	13,312
CASH AND CASH EQUIVALENTS - end of period	$ 3,397	$ 10,259