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Stockholders' Equity - Additional Information - Stock Options (Detail) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Schedule Of Stockholders Equity [Line Items]    
Options outstanding, intrinsic value $ 360,573 $ 7,220
Options exercisable, intrinsic value 53,259 7,220
Stock-based compensation expense 1,019,409 $ 775,851
Unvested share-based awards $ 1,400,000  
Expected weighted average period to recognize unearned stock-based compensation 2 years  
Stock Options [Member]    
Schedule Of Stockholders Equity [Line Items]    
Weighted-average grant-date fair value $ 1.23 $ 1.71