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Subsequent Events - Additional Information (Detail) - Subsequent Event - USD ($)
May 05, 2020
Apr. 09, 2020
Promissory Note    
Subsequent Event [Line Items]    
Interest rate   1.00%
Proceeds from lines of credit   $ 2,900,000
Notes payable, description   The Company borrowed a principal amount of approximately $2.9 million. The interest on the Note is 1.00% per annum. The Note is payable two years from the date of the Note, and there is no prepayment penalty.
Number of years note payable   2 years
April 21 Funds    
Subsequent Event [Line Items]    
Promissory notes principal amount $ 4,000,000  
Interest rate 8.00%  
Debt instrument, frequency of periodic payment Quarterly  
Warrants issued to purchase common stock 275,000  
Warrants, term 3 years  
April 21 Funds | First Anniversary of Issuance    
Subsequent Event [Line Items]    
Interest rate 12.00%