Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Detail)

v3.22.1
Stockholders' Equity - Additional Information (Detail)
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 16, 2021
USD ($)
Oct. 01, 2021
USD ($)
Sep. 24, 2020
USD ($)
Aug. 17, 2018
USD ($)
Mar. 31, 2019
USD ($)
$ / shares
shares
Mar. 31, 2022
USD ($)
Vote
shares
Dec. 31, 2020
USD ($)
Jun. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
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    
Securities reserved for issuance $ 100,000,000                      
At-the-market ("ATM") funds receivable             $ 38,832,711          
Accounting issuance costs will be paid     $ 1,167,289                  
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 shares of common stock 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 the 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. There are currently 200,000,000 shares of common stock authorized for issuance.            
Common stock, shares authorized | shares           200,000,000         200,000,000  
Maximum [Member]                        
Class of Stock [Line Items]                        
Securities reserved for issuance     75,000,000                  
Consummation of Offering Under Shelf Registration [Member]                        
Class of Stock [Line Items]                        
Proceeds from shelf registration debt or equity securities       $ 75,000,000                
Sales Agreement [Member]                        
Class of Stock [Line Items]                        
Net of issuance costs from offering of shares                     $ 868,122  
Proceeds from at the market offering of shares of common stock and warrants                     27,043,751  
Sale of stock, Description                       The $40,000,000 of common stock to be offered, issued and sold under the sales agreement prospectus is included in the $75,000,000 of securities that may be offered, issued and sold by the Company under the base prospectus.
Proceeds from at the market offering of shares of common stock and warrants                     $ 27,043,751  
Remaining securities under agreements to Repurchase on shelf registration statement           $ 7,088,127            
Sales Agreement [Member] | Maximum [Member]                        
Class of Stock [Line Items]                        
Proceeds from (Payments for) in Securities Sold under Agreements   $ 35,000,000 $ 40,000,000