Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating Activities [Abstract]
Net loss	$ (9,470)	$ (23,330)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	7,113	6,190
Unrealized gain on investment in equity securities	(4,917)	0
Realized gain on sale of investment in equity securities	(4,063)	0
Loss on disposal of property and equipment	3,545	960
Impairment of property and equipment	1,146	0
Share-based compensation	2,838	2,430
Impairment of other assets	1,074	0
Change in fair value of Bitcoin	(682)	0
Bitcoin issued for services	538	1,562
Change in fair value of warrant liabilities	(174)	(976)
Provision for losses on deposits made due to vendor bankruptcy filings	0	8,509
Gain on deconsolidation of SPAC	0	(6,140)
Impairment of acquired intangible assets	0	2,952
Realized gain on sale of Bitcoin	0	1,131
Warrants issued with convertible debt	0	976
Impairment of Bitcoin	0	682
Gain on disposal of service and product segment - related party	0	(663)
Issuance of common shares and warrants for settlement of liabilities	0	214
Extinguishment of debt	0	63
Noncash lease cost	0	56
Changes in operating assets and liabilities:
Proceeds from sale of Bitcoin	14,842	19,326
Mining of Bitcoin	(16,608)	(19,730)
Accounts receivable	0	94
Accounts payable and accrued liabilities	(262)	2,573
Accrued payroll and employee compensation	171	822
Other assets	453	(2,512)
Other liabilities	(120)	491
Net cash used in operating activities	(4,576)	(6,582)
Investing activities:
Proceeds from sale of equity investment	11,450	0
Payments for purchase of property and equipment	(8,944)	(1,561)
Proceeds from sale of Bitcoin	1,522	0
Redemption of non-controlling interest	0	(10,410)
Redemption of cash in trust account	0	10,297
Proceeds from sale of property and equipment	0	4,468
Cash related to deconsolidation of SPAC	0	(204)
Cash related to disposal of service and product segment	0	(29)
Net cash provided by investing activities	4,028	2,561
Financing activities:
Proceeds from issuance of common shares and warrants	5,495	0
Payments for issuance costs for common shares and warrants	(108)	0
Proceeds from issuance of preferred shares and warrants	0	3,048
Payments for convertible debt	0	(1,285)
Proceeds from convertible debt, net of debt issuance costs	0	779
Proceeds from exercise of stock options	0	556
Payments for cost of preferred shares and warrants	0	(34)
Net cash provided by financing activities	5,387	3,064
Net increase (decrease) in cash, and cash equivalents	4,839	(957)
Cash, cash equivalents, and restricted cash, beginning of year	586	1,543
Cash, and cash equivalents, end of year	$ 5,425	$ 586