v3.21.1

Stockholders' Deficit (Details) - Stock Options [Member]	12 Months Ended
	Dec. 31, 2020 USD ($) $ / shares shares
Number of Shares
Number of Shares, Outstanding | shares	2,253,206
Number of shares, granted | shares
Number of Shares, Exercised | shares	(85,939)
Number of shares, Forfeited or expired | shares	(1,514,627)
Number of Shares, Outstanding | shares	652,640
Number of shares, vested and expected to vest | shares	652,640
Number of shares, Exercisable | shares	640,478
Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding | $ / shares	$ 2.60
Weighted Average Exercise Price, Granted | $ / shares
Weighted Average Exercise Price, Exercised | $ / shares	1.28
Weighted Average Exercise Price, Forfeited or expired | $ / shares	3.38
Weighted Average Exercise Price, Outstanding | $ / shares	0.91
Weighted average exercise price, vested and expected to vest | $ / shares	0.91
Weighted Average Exercise Price, Exercisable | $ / shares	$ 0.90
Weighted average remaining contractual life (years)	8 years 2 months 8 days
Weighted average remaining contractual life (years), Outstanding	6 years 4 months 17 days
Weighted average remaining contractual life (years), Vested and expected to vest	6 years 4 months 17 days
Weighted average remaining contractual life (years), Exercisable	6 years 4 months 24 days
Intrinsic value, Outstanding | $	$ 4,063,176
Intrinsic value, Vested and expected to vest | $	4,063,176
Intrinsic value, Exercisable | $	$ 3,999,742

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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