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Schedule of Benefit from Income Taxes and Effective Tax Rates (Details) | 12 Months Ended
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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%

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