Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Right of use assets and lease liabilities for operating leases (Details)

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Commitments and Contingencies - Right of use assets and lease liabilities for operating leases (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Assets:    
Right-of-use assets, net $ 842 $ 2,102
Total lease assets 842 2,102
Liabilities:    
Operating lease liabilities, current 639 1,222
Non-current liabilities: Operating lease liabilities, net of current portion 326 1,094
Total lease liability $ 965 $ 2,316