Annual report pursuant to Section 13 and 15(d)

Income Taxes - Deferred Taxes (Details)

v3.20.1
Income Taxes - Deferred Taxes (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Deferred tax assets:    
NOLs $ 22,033 $ 18,942
Research and development credits 14,138 13,086
Research and development expenses capitalized for tax purposes 92,350 88,485
Deferred rent 847 321
Depreciation 162 19
Other temporary differences 5,124 4,823
Total deferred tax assets 134,654 125,676
Deferred tax liabilities:    
Prepaid expenses (86) (64)
Total deferred tax liabilities (86) (64)
Net deferred tax assets 134,568 125,612
Less valuation allowance (134,568) (125,612)
Net deferred tax asset $ 0 $ 0