Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Income Tax Provision (Details)

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INCOME TAXES - Income Tax Provision (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Amount    
Income tax benefit at federal statutory rate $ (4,746) $ (3,624)
State taxes, net of federal effect (1,391) (1,142)
Other permanent differences 115 43
Stock-based compensation 569 (274)
Non-deductible officer compensation (IRC 162(m)) 0 1,242
R&D tax credits (242) (320)
Other 769 (241)
Increase in valuation allowance 4,609 3,701
Income tax benefit $ (317) $ (615)
Percent of pretax income (loss)    
Income tax benefit at federal statutory rate 21.00% 21.00%
State taxes, net of federal effect 6.20% 6.60%
Other permanent differences (0.50%) (0.20%)
Stock-based compensation (2.50%) 1.60%
Non-deductible officer compensation (IRC 162(m)) 0.00% (7.20%)
R&D tax credits 1.10% 1.90%
Other (3.60%) 1.40%
Increase in valuation allowance (20.40%) (21.50%)
Income tax benefit 1.30% 3.60%