Fair Value Measurements - Fair Value of Financial Instruments on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Total	$ 7,387
Investment in equity securities
Assets:
Total	7,260
Bitcoin
Assets:
Total	127
Warrant
Liabilities:
Warrant liabilities	76	$ 205
Fair Value, Inputs, Level 1
Assets:
Total	7,387
Fair Value, Inputs, Level 1 | Investment in equity securities
Assets:
Total	7,260
Fair Value, Inputs, Level 1 | Bitcoin
Assets:
Total	127
Fair Value, Inputs, Level 1 | Warrant
Liabilities:
Warrant liabilities	0	0
Fair Value, Inputs, Level 2
Assets:
Total	0
Fair Value, Inputs, Level 2 | Investment in equity securities
Assets:
Total	0
Fair Value, Inputs, Level 2 | Bitcoin
Assets:
Total	0
Fair Value, Inputs, Level 2 | Warrant
Liabilities:
Warrant liabilities	0	0
Fair Value, Inputs, Level 3
Assets:
Total	0
Fair Value, Inputs, Level 3 | Investment in equity securities
Assets:
Total	0
Fair Value, Inputs, Level 3 | Bitcoin
Assets:
Total	0
Fair Value, Inputs, Level 3 | Warrant
Liabilities:
Warrant liabilities	$ 76	$ 205