Stockholders Deficit - Summary of Stock-Based Compensation Recorded in the Condensed Consolidated Statements of Operations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	$ 366,880	$ 287,332	$ 787,551	$ 528,578
Selling, General and Administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	338,063	217,195	696,075	399,176
Research and Development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	24,913	58,234	83,418	106,684
Cost of Product and Product-related Services Revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	$ 3,904	$ 11,903	$ 8,058	$ 22,718