Debt Obligations - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Debt Instrument [Line Items]
Accretion of discount on NuvoGen obligation				$ (6,483)	$ (6,006)
Repayment of outstanding principal and interest					4,276,988
Loss on extinguishment of Growth Term Loan					105,064
Revolving loan cost		$ 59,086		59,086		$ 67,068
MidCap Credit Facility
Debt Instrument [Line Items]
Accretion of discount on NuvoGen obligation		37,940	$ 41,155	73,114	43,856
Debt discount		537,245		537,245		610,359
Revolving Credit Facility
Debt Instrument [Line Items]
Amortization of deferred financing costs		4,013	4,013	7,982	4,236
Revolving loan cost		59,086		59,086		67,068
Growth Term Loan
Debt Instrument [Line Items]
Amortization of deferred financing costs		0	0	0	2,982
Unamortized discounts			67,272		67,272
Repayment of outstanding principal and interest	$ 4,300,000
Loss on extinguishment of Growth Term Loan			0		105,064
Growth Term Loan | Oxford Finance, LLC and Silicon Valley Bank
Debt Instrument [Line Items]
Accretion of discount on NuvoGen obligation		0	$ 0	0	$ 59,969
Unamortized discounts		$ 0		$ 0		$ 0