Revenue Recognition - Schedule of Revenue by Disaggregated by Products and Services (Details) - USD ($)	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue [Line Items]
Revenues	$ 22,747,000	$ 35,996,000
Total Operating Revenue \| Products and Services Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%
Exchange aggregation
Disaggregation of Revenue [Line Items]
Revenues	$ 20,003,000	$ 33,807,000
Exchange aggregation \| Total Operating Revenue \| Products and Services Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	87.90%	94.00%
Fiat onboarding
Disaggregation of Revenue [Line Items]
Revenues	$ 1,947,000	$ 1,140,000
Fiat onboarding \| Total Operating Revenue \| Products and Services Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	8.60%	3.20%
Staking
Disaggregation of Revenue [Line Items]
Revenues	$ 659,000	$ 588,000
Staking \| Total Operating Revenue \| Products and Services Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	2.90%	1.60%
Consulting
Disaggregation of Revenue [Line Items]
Revenues	$ 108,000	$ 337,000
Consulting \| Total Operating Revenue \| Products and Services Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	0.50%	0.90%
Other
Disaggregation of Revenue [Line Items]
Revenues	$ 30,000	$ 124,000
Other \| Total Operating Revenue \| Products and Services Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	0.10%	0.30%
Non-Fungible Token
Disaggregation of Revenue [Line Items]
Revenues	$ 100,000	$ 100,000