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Revenue - Additional Information (Detail)
12 Months Ended
Dec. 31, 2019
USD ($)
Customer
Dec. 31, 2018
USD ($)
Customer
Revenue Recognition [Line Items]    
Number of customer | Customer 3 3
Percentage of revenue 53.00% 51.00%
Deferred contract costs $ 113,750 $ 7,448
Deferred revenue 19,644 69,473
Selling, General and Administrative Expense [Member]    
Revenue Recognition [Line Items]    
Amortized deferred contract costs $ 215,000 211,250
Reduction to Income [Member]    
Revenue Recognition [Line Items]    
Amortized deferred contract costs   $ 36,139