Quarterly Financial Data (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Total revenues	$ 9,242,000	$ 9,583,000	$ 8,464,000	$ 6,653,000	$ 5,691,000	$ 5,285,000	$ 4,627,000	$ 4,023,000	$ 33,941,900	$ 19,626,453
Gross margin	4,932,000	4,627,000	4,338,000	3,454,000	2,816,000	2,736,000	2,504,000	2,184,000	17,351,656	10,240,265
Loss from operations	(878,000)	(12,352,000)	(2,304,000)	(2,141,000)	(2,220,000)	(2,161,000)	(2,465,000)	(1,798,000)	(17,675,045)	(8,644,615)
Net loss	$ (948,000)	$ (12,469,000)	$ (2,528,000)	$ (2,387,000)	$ (2,258,000)	$ (2,144,000)	$ (2,471,000)	$ (2,683,000)	$ (18,331,479)	$ (9,555,601)
Net loss per share - basic and diluted	$ (0.03)	$ (0.35)	$ (0.08)	$ (0.08)	$ (0.08)	$ (0.07)	$ (0.09)	$ (0.10)	$ (0.55)	$ (0.34)
Accelerated stock-based compensation expense		$ 1,227,890							$ 9,561,884	$ 0
Stock-based compensation expense									6,961,622	$ 5,478,625
General and administrative expense
Accelerated stock-based compensation expense									$ 5,000,000
Stock-based compensation expense	$ 765,099