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Share-Based Compensation (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Aug. 28, 2026	Aug. 18, 2026	Jun. 30, 2026	Mar. 31, 2026	Mar. 25, 2026	Feb. 19, 2026	Feb. 06, 2025	Sep. 30, 2026	Jun. 30, 2026	Mar. 31, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025	May 13, 2026
Share-Based Compensation [Line Items]
Share-based compensation expense (in Dollars)												$ 600
Number of shares vested		1,000,000
Share Options [Member]
Share-Based Compensation [Line Items]
Share-based compensation expense (in Dollars)												2		$ 54
Unrecognized compensation costs (in Dollars)
Director [Member]
Share-Based Compensation [Line Items]
Awarded shares								4,000,000
Consultants [Member]
Share-Based Compensation [Line Items]
Shares granted				2,683						2,683
Ordinary Shares [Member]
Share-Based Compensation [Line Items]
Shares granted																15,000,000
Preference Shares [Member]
Share-Based Compensation [Line Items]
Shares granted			200,000
Aggregate granted options shares			600,000
Aggregate grant-date fair value									$ 2,000
2021 Second Plan [Member] \| Ordinary Shares [Member]
Share-Based Compensation [Line Items]
Ordinary shares reserved	5,000,000								5,000,000				5,000,000
2021 Second Plan [Member] \| Share Options [Member]
Share-Based Compensation [Line Items]
Aggregate granted options shares													356,875
2023 Plan [Member] \| Ordinary Shares [Member]
Share-Based Compensation [Line Items]
Ordinary shares reserved	5,000,000								5,000,000				5,000,000
2025 Plan [Member]
Share-Based Compensation [Line Items]
Aggregate granted options shares													7,775,545
Bit Digital Incentive Plan [Member]
Share-Based Compensation [Line Items]
Share-based compensation expense (in Dollars)													$ 6,900
WhiteFiber 2025 Plan [Member]
Share-Based Compensation [Line Items]
Share-based compensation expense (in Dollars)									$ 1,100		$ 2,100
Number of shares vested									58,836		139,225
Remainder of shares subjected to vest (in shares)	2,117								2,117				2,117
WhiteFiber 2025 Plan [Member] \| Consultants [Member]
Share-Based Compensation [Line Items]
Number of shares vested											13,219
2026 Plan [Member]
Share-Based Compensation [Line Items]
Ordinary shares reserved	15,000,000								15,000,000				15,000,000
WhiteFiber [Member]
Share-Based Compensation [Line Items]
Share-based compensation expense (in Dollars)									$ 1,100			4,800	$ 3,600	4,800
WhiteFiber [Member] \| Bit Digital Incentive Plan [Member]
Share-Based Compensation [Line Items]
Share-based compensation expense (in Dollars)												1,000	$ 59
RSUs [Member]
Share-Based Compensation [Line Items]
Shares granted	1,393,671								1,393,671				1,393,671
Granted shares	75,000			135,000
Awarded shares													12,500		112,228
Share-based compensation expense (in Dollars)									$ 200			$ 6,900	$ 5,400	$ 14,200
Unrecognized compensation costs (in Dollars)	$ 39								$ 39				$ 39
RSUs [Member] \| Chief Executive Officer
Share-Based Compensation [Line Items]
Granted shares						150,000	400,000
RSUs [Member] \| Chief Financial Officer [Member]
Share-Based Compensation [Line Items]
Granted shares						750,000
RSUs [Member] \| Employees [Member]
Share-Based Compensation [Line Items]
Granted shares						1,094,340
RSUs [Member] \| 2021 Plan [Member]
Share-Based Compensation [Line Items]
Shares granted	2,415,293								2,415,293				2,415,293
RSUs [Member] \| 2021 Second Plan [Member]
Share-Based Compensation [Line Items]
Shares granted	4,211,372								4,211,372				4,211,372
RSUs [Member] \| 2023 Plan [Member]
Share-Based Compensation [Line Items]
Granted shares													4,290,635
RSUs [Member] \| 2025 Plan [Member]
Share-Based Compensation [Line Items]
Ordinary shares reserved	8,000,000								8,000,000				8,000,000
Granted shares					75,000
RSUs [Member] \| WhiteFiber 2025 Plan [Member]
Share-Based Compensation [Line Items]
Granted shares									60,953
Share-based compensation expense (in Dollars)										$ 70
Granted shares											152,444
RSUs [Member] \| 2026 Plan [Member]
Share-Based Compensation [Line Items]
Granted shares	1,220,000
RSUs [Member] \| WhiteFiber [Member]
Share-Based Compensation [Line Items]
Awarded shares													119,576