Commitments and Contingencies - Right of use assets and lease liabilities for operating leases (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets:
Right-of-use assets, net	$ 2,365	$ 842
Total lease assets	2,365	842
Liabilities:
Operating lease liabilities, current	719	639
Operating lease liabilities, net of current portion	1,715	326
Total lease liability	$ 2,434	$ 965