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License Fee Payable (Details) - USD ($)
9 Months Ended 12 Months Ended
Mar. 18, 2019
Mar. 01, 2018
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Feb. 28, 2018
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Percent of counterparty payable offset by guarantor           50.00%
Proceeds from milestone payments   $ 6,100,000        
License fee payment   5,600,000        
License fees payable $ 8,100,000          
License fees       $ 0 $ 5,400,000  
License fees       0 2,700,000  
Net sales       40,519,800 $ 13,982,177  
License Agreement            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Percent of royalties payable under license agreement 90.00%          
Adapt            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Reduction in Milestone Payment   $ 6,250,000        
Adapt | SWK Purchase Agreement            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Milestone payment to be received if requirements are met $ 2,700,000          
Third Party Licensee            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Maximum reduction in quarterly royalty payable payments in next twelve months $ 9,000,000.0          
SWK Funding LLC | SWK Purchase Agreement            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Percent of royalties payable under license agreement 10.00%          
EBS            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Maximum reduction in quarterly royalty payable payments in next twelve months $ 1,800,000          
Narcan            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
License fees       $ 8,100,000    
Minimum sales requirement for milestone payment 200,000,000          
Milestone payment to be received if requirements are met 15,000,000          
Narcan | License Agreement            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Milestone payment to be received if requirements are met $ 13,500,000          
Narcan            
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]            
Net sales     $ 200,000,000