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Debt Obligations - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Debt Instrument [Line Items]
Accretion of discount on NuvoGen obligation		$ (3,414)	$ (2,952)
Repayment of outstanding principal and interest			4,276,988
Loss on extinguishment of Growth Term Loan			105,064
Revolving loan cost		63,099		$ 67,068
MidCap Credit Facility
Debt Instrument [Line Items]
Accretion of discount on NuvoGen obligation		35,174	2,701
Debt discount		575,185		610,359
Revolving Credit Facility
Debt Instrument [Line Items]
Amortization of deferred financing costs		3,969	223
Revolving loan cost		63,099		67,068
Growth Term Loan
Debt Instrument [Line Items]
Amortization of deferred financing costs		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			105,064
Growth Term Loan \| Oxford Finance, LLC and Silicon Valley Bank
Debt Instrument [Line Items]
Accretion of discount on NuvoGen obligation		0	$ 59,969
Unamortized discounts		$ 0		$ 0