XML 76 R57.htm IDEA: XBRL DOCUMENT v3.22.1
Schedule of Benefit from Income Taxes and Effective Tax Rates (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]    
Federal income tax expense at statutory rate 21.00% 21.00%
State income tax expense, net of federal tax benefit 3.90% 3.30%
Permanent differences:    
- Foreign derived intangible income deduction (3.50%) (1.70%)
- Stock based compensation 0.20% (8.80%)
- Other permanent differences 0.30% (0.40%)
Research and development credits (2.60%) (2.00%)
Change in uncertain tax positions 1.40% 1.10%
Change in valuation allowance 0.00% (12.10%)
Other (1.00%) (0.20%)
Effective income tax rate 19.70% 0.20%