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Revenue - Additional Information (Detail)
3 Months Ended
Mar. 31, 2021
USD ($)
Customer
Mar. 31, 2020
USD ($)
Customer
Dec. 31, 2020
USD ($)
Revenue Recognition [Line Items]      
Number of customer | Customer 2 3  
Percentage of revenue 46.90% 54.00%  
Deferred contract costs $ 50,000   $ 100,000
Deferred revenue 241,495   $ 50,454
Selling, General and Administrative Expense [Member]      
Revenue Recognition [Line Items]      
Amortized deferred contract costs $ 50,000 $ 56,250