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Debt Obligations - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Mar. 31, 2018
Oct. 31, 2017
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Debt Instrument [Line Items]              
Repayment of outstanding principal and interest           $ 4,276,988  
Loss on extinguishment of Growth Term Loan           105,064  
MidCap Credit Facility              
Debt Instrument [Line Items]              
Debt instrument, amortization expense     $ 43,321 $ 39,910 $ 116,435 83,766  
Debt discount     493,923   493,923   $ 610,359
Revolving Credit Facility              
Debt Instrument [Line Items]              
Amortization of deferred financing costs     4,058 4,058 12,040 8,294  
Revolving loan cost     55,028   55,028   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]              
Debt instrument, amortization expense     0 $ 0 0 $ 59,969  
Unamortized discounts     $ 0   $ 0   $ 0
Convertible Promissory Note | QIAGEN North American Holdings, Inc.              
Debt Instrument [Line Items]              
Cash proceeds from issuance of subordinated notes   $ 3,000,000