Digital Currencies - Schedule of measurement inputs and valuation techniques (Details) $ in Thousands	Jun. 30, 2026 Year	Apr. 19, 2026 USD ($) Year	Mar. 31, 2026 Year	Mar. 07, 2026 USD ($) Year	Jan. 07, 2026 USD ($) Year
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contract value \| $		$ 5,017		$ 6,648	$ 11,665
Fair value - initial \| $		$ 210		$ 266	$ 1,225
Spot rate [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	59	74	68	67	91
Strike price [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	110	110	110	110	110
Risk-free interest rate [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input		3.64		3.54	3.48
Risk-free interest rate [Member] \| Minimum [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	3.86		3.6
Risk-free interest rate [Member] \| Maximum [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	3.93		3.71
Expected life (years) [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input		1.01		1.01	1.01
Expected life (years) [Member] \| Minimum [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.53		0.79
Expected life (years) [Member] \| Maximum [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.81		0.95
Annualized volatility [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	43.23	44.34	51.37	51.21	45.92
Number of Bitcoin [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input		46		60	106
Number of Bitcoin pledged [Member] \| Digital currencies option [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	212		166