Investment valuation (Details) - Schedule of financial instruments at fair value - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Investments in U.S. Treasury bills	$ 2,421
U.S. Treasury bills included in cash and cash equivalents		$ 5,250
Quoted Prices in Active Markets for Identical Assets (Level 1)
Derivatives, Fair Value [Line Items]
Investments in U.S. Treasury bills
U.S. Treasury bills included in cash and cash equivalents
Significant Other Observable Inputs (Level 2)
Derivatives, Fair Value [Line Items]
Investments in U.S. Treasury bills	2,421
U.S. Treasury bills included in cash and cash equivalents		5,250
Significant Unobservable Inputs (Level 3)
Derivatives, Fair Value [Line Items]
Investments in U.S. Treasury bills
U.S. Treasury bills included in cash and cash equivalents