Annual report pursuant to Section 13 and 15(d)

Common Stock - Stock Warrants - Additional Information (Detail)

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Common Stock - Stock Warrants - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Class of Warrant or Right [Line Items]      
Proceeds from exercise of warrants $ 24,000 $ 338,000 $ 3,231,000
Common stock, shares issued 17,897,029 9,453,542  
Warrants Issued in December 2019 [Member]      
Class of Warrant or Right [Line Items]      
Warrants to purchase common stock 3,709 47,084  
Exercise price per unit of warrant $ 6.60 $ 6.60  
Proceeds from exercise of warrants $ 24,480 $ 300,000  
Warrants Issued in April 2020 [Member]      
Class of Warrant or Right [Line Items]      
Warrants to purchase common stock   3,750  
Exercise price per unit of warrant   $ 7.32  
Proceeds from exercise of warrants   $ 27,450