Stockholders' Equity - Additional Information (Detail) |
1 Months Ended | 3 Months Ended | 6 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 24, 2020
USD ($)
|
Aug. 17, 2018
USD ($)
|
Mar. 31, 2019
USD ($)
$ / shares
shares
|
Dec. 31, 2020
USD ($)
shares
|
Sep. 30, 2020
USD ($)
|
Jun. 30, 2020
USD ($)
|
Mar. 31, 2020
USD ($)
|
Dec. 31, 2019
USD ($)
|
Jun. 30, 2021
Vote
shares
|
Jul. 24, 2020
shares
|
|
| Class of Stock [Line Items] | ||||||||||
| Number of common stock voting entitlement per share | Vote | 1 | |||||||||
| Proceeds from private offering of shares of common stock and warrants | $ 23,319,156 | |||||||||
| Net of issuance costs from offering of shares | $ 1,680,844 | $ 236,528 | $ 141,322 | $ 339,081 | ||||||
| Class of warrant or right, number of securities called by warrants or rights | shares | 1,666,666 | |||||||||
| Class of warrant or right, exercise price of warrants or rights | $ / shares | $ 10.00 | |||||||||
| Proceeds from at the market offering of shares of common stock and warrants | 9,216,611 | 5,506,880 | $ 4,557,693 | |||||||
| Common stock outstanding abstract | Our outstanding common shares typically include shares that are deemed delivered under US GAAP. Shares that are deemed delivered currently include shares that have vested, but have not yet been delivered, under tax-deferred equity awards, as well as shares purchased under our Employee Stock Purchase Program (“ESPP”) where actual transfer of shares normally occurs a few days after the completion of the purchase periods. There are no voting rights for shares that are deemed delivered under US GAAP until the actual delivery of shares takes place. On July 24, 2020, the stockholders of the Company approved an increase of the authorized share capital of the Company from 50,000,000 to 200,000,000 shares of common stock. | |||||||||
| Common stock, shares authorized | shares | 200,000,000 | 200,000,000 | ||||||||
| Accounting issuance costs will be paid | $ 1,167,289 | |||||||||
| At-the-market ("ATM") funds receivable | $ 38,832,711 | $ 38,832,711 | ||||||||
| Securities Sold under Agreement, Shares | shares | 0 | |||||||||
| Maximum [Member] | ||||||||||
| Class of Stock [Line Items] | ||||||||||
| Securities reserved for issuance | $ 75,000,000 | |||||||||
| Common stock, shares authorized | shares | 200,000,000 | |||||||||
| Minimum [Member] | ||||||||||
| Class of Stock [Line Items] | ||||||||||
| Common stock, shares authorized | shares | 50,000,000 | |||||||||
| Common Stock [Member] | ||||||||||
| Class of Stock [Line Items] | ||||||||||
| Proceeds from at the market offering of shares of common stock and warrants | $ 33 | $ 44 | ||||||||
| Consummation of Offering Under Shelf Registration [Member] | ||||||||||
| Class of Stock [Line Items] | ||||||||||
| Proceeds from shelf registration debt or equity securities | $ 75,000,000 | |||||||||
| At-the-Market (?ATM?) Sales Agreement [Member] | ||||||||||
| Class of Stock [Line Items] | ||||||||||
| Sale of stock, Description | The $40,000,000 of common stock that may be offered, issued and sold under the sales agreement prospectus is included in the $75,000,000 of the Company’s securities that may be offered, issued and sold by the Company under the base prospectus. | |||||||||
| At-the-Market (?ATM?) Sales Agreement [Member] | Maximum [Member] | ||||||||||
| Class of Stock [Line Items] | ||||||||||
| Proceeds from (Payments for) in Securities Sold under Agreements | $ 40,000,000 | |||||||||