Summary of Significant Accounting Policies - Detail 1 (Detail) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Gross carrying amount	$ 2,950,132	$ 2,917,215
Accumulated amortization	(2,861,363)	(2,637,801)
Software development costs, net	$ 88,769	$ 279,414