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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
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Income Tax Disclosure [Abstract] |  |
Net operating loss carryforwards | $ 4,624,000 | $ 4,498,000
Payroll related accruals | 235,000 |
Stock-based compensation | 89,000 | 171,000
Intangible assets | 89,000 | 78,000
Reserves | 11,000 | 11,000
Research and development tax credits | 411,000 | 333,000
Total deferred tax assets | 5,459,000 | 5,091,000
Depreciation | (24,000) | (30,000)
Total deferred tax liabilities | (24,000) | (30,000)
Net deferred tax assets | 5,435,000 | 5,061,000
Less: Valuation allowance | (5,435,000) | (5,061,000)
Deferred tax assets, net of allowance |  |

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