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Fair Value Measurements - Schedule of Fair Value Assumptions (Details) | Dec. 31, 2020 $ / shares shares | Dec. 31, 2019 $ / shares shares
--- | --- | ---
Number of warrants outstanding | shares |  | 50,000 | 100,000
Expiration date |  | Jun. 21, 2022 | Jun. 21, 2022
Exercise price | $ / shares |  | $ 3.92 | $ 11.30
Stock Price [Member] |  |  |
Fair value meaeurement input |  | 3.68 | 3.00
Dividend Yield [Member] |  |  |
Fair value meaeurement input |  | 0 | 0
Average Volatility Rate [Member] |  |  |
Fair value meaeurement input | [1] | 120 | 80
Probability Of Down-round Event [Member] |  |  |
Fair value meaeurement input | [2] | 0 | 25
Risk Free Interest Rate [Member] |  |  |
Fair value meaeurement input |  | 0.11 | 1.59
[1] | The average volatility represents the Company's volatility measurement, the observed volatility of our peer group over a similar period, and the stock market volatility as of the valuation date.
[2] | Represents the estimated probability of a future down-round event during the remaining term of the warrants.

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