Income Taxes - Reconciliation of Income Taxes (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, net of federal benefit	(4.80%)	(5.70%)
Permanent differences	(1.80%)	1.40%
Change in state tax rate	(0.10%)	(0.10%)
Changes of state net operating losses	2.80%	(0.30%)
Change in stock options and restricted stock	(4.90%)	0.30%
Change in valuation allowance	29.80%	25.20%
Other	0.00%	0.20%
Effective tax rate	0.00%	(0.00%)

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Effective Income Tax Rate Reconciliation Tax Change In Stock Options And Restricted Stock

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Effective Income Tax Rate Reconciliation Tax Expirations Of Net Operating Losses

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Publisher FASB
-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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