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Income Taxes - Schedule of Tax Effects of Temporary Differences and Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Deferred tax assets:    
Net operating loss carryforwards $ 35,186 $ 22,208
Deferred compensation 1,812 899
Research and development credits 1,497 1,071
Operating lease liability 405 138
Provision for bad debt 163 75
Provision for excess and obsolete inventories 28 282
Other 104 19
Gross deferred tax assets 39,195 24,692
Less: Valuation allowance (38,804) (24,543)
Deferred tax assets, net of valuation allowance 391 149
Operating lease right-of-use assets (391) (135)
Fixed assets (14)
Deferred tax liabilities: (391) (149)
Net deferred tax assets $ 0 $ 0