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Organization and Basis of Presentation - Additional Information (Detail) - USD ($)
6 Months Ended
May 01, 2020
Jun. 30, 2020
Jun. 26, 2020
Dec. 31, 2019
Jun. 30, 2019
Dec. 31, 2018
Organization And Basis Of Presentation [Line Items]            
Month and year of incorporation   2007-01        
Cash and cash equivalents   $ 7,990,392   $ 5,663,833 $ 7,440,079 $ 5,319,004
Paycheck Protection Program [Member] | COVID-19 [Member]            
Organization And Basis Of Presentation [Line Items]            
Proceeds from loan $ 104,000          
Revolving Credit Facility [Member] | Eversana Agreement [Member]            
Organization And Basis Of Presentation [Line Items]            
Borrowings     $ 2,000,000