Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Details)

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Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Deferred tax assets      
Reserves and accruals $ 1,665 $ 1,056 $ 1,009
Net operating loss carryforwards 24,824 16,986 10,985
Research and development credit carryforwards 2,938 2,177 1,194
Lease Liabilities 1,148 1,336  
Gross deferred tax assets 30,575 21,555 13,188
Valuation allowance (29,410) (20,196) (12,560)
Net deferred tax assets 1,165 1,359 628
Deferred tax liabilities      
Property and equipment (469) (557) $ (628)
Right-of-use asset $ (696) $ (802)