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Stockholders' Equity - Additional Information (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jun. 26, 2019 | Jul. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019 | Feb. 01, 2018
Class Of Stock [Line Items] |  |  |  |  |  |
Preferred stock, shares authorized |  |  | 10,000,000 |  |  |
Common stock, shares authorized |  |  | 50,000,000 |  | 50,000,000 |
Common stock voting rights |  |  | one vote for each share |  |  |
Common stock, par value |  |  | $ 0.0001 |  | $ 0.0001 |
Gross proceeds from issuance of common stock |  | $ 2,488,148 |  |  |  |
Exercise of stock options and warrants |  |  | $ 57,000 | $ 14,201 |  |
Preferred stock, shares outstanding |  |  |  |  |  | 0
Unvested common stock options, net of estimated forfeitures |  |  | $ 158,871 |  |  |
Unearned stock-based compensation expected to be recognized |  |  | 1 year 6 months 25 days |  |  |
Cashless Exercise of Stock Options |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Number of common stock issued for exercise of stock options |  |  | 279,914 | 17,598 |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Unvested common stock options, net of estimated forfeitures |  |  | $ 423,077 |  |  |
Unearned stock-based compensation expected to be recognized |  |  | 1 year 6 months 3 days |  |  |
Restricted Stock Units (RSUs) | 2017 Equity Incentive Plan | Minimum |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Vesting period |  |  | 1 year |  |  |
Restricted Stock Units (RSUs) | 2017 Equity Incentive Plan | Maximum |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Vesting period |  |  | 3 years |  |  |
Common Stock |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Number of common stock issued for exercise of stock options and warrants |  |  | 354,914 | 54,098 |  |
Follow-on Public Offering | Noble Capital Markets, Inc |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Common stock, par value | $ 0.0001 |  |  |  |  |
Common stock aggregate offering price | $ 10,000,000 |  |  |  |  |
Follow-on Public Offering | Common Stock | Noble Capital Markets, Inc |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Common stock sold under public offering |  | 1,554,832 |  |  |  |
Gross proceeds from issuance of common stock |  | $ 2,700,714 |  |  |  |
Net proceeds from issuance of common stock |  | 2,488,148 |  |  |  |
Compensation payable |  | 55,127 |  |  |  |
Other expenses |  | $ 157,439 |  |  |  |
Equity distribution agreement termination date |  | Aug. 26, 2019 |  |  |  |

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