Annual report pursuant to Section 13 and 15(d)

Supplemental Balance Sheet Information, Prepaid and Other Assets (Details)

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Supplemental Balance Sheet Information, Prepaid and Other Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Prepaid and Other Assets [Abstract]    
Prepaids $ 1,243 $ 1,243
Other 71 26
Total prepaids and other assets $ 1,314 $ 1,269