XML 73 R56.htm IDEA: XBRL DOCUMENT v3.22.0.1
Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets (liabilities):      
Accrual, write-down and other $ 5,442 $ 3,249 $ 2,469
Depreciation and amortization   257 76
Depreciation and amortization (818)    
Net operating loss and credits carry forwards 64,690 52,445 42,949
Total gross deferred tax assets (liabilities) 69,314 55,951 45,494
Valuation allowance (69,314) (55,951) (45,494)
Total net deferred tax assets $ 0 $ 0 $ 0