Annual report pursuant to Section 13 and 15(d)

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

v3.20.1
Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]    
Accrued expenses $ 107 $ 132
Stock-based compensation 2,436 1,911
Lease liability 945 0
Other (856) (31)
Net operating loss carryforwards 58,073 44,730
Research and development credits 5,984 3,226
Total deferred tax assets 66,689 49,968
Valuation allowances (66,689) (49,968)
Net deferred tax assets $ 0 $ 0