Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Schedule of Allocation of Purchase Price (Details)

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Acquisitions - Schedule of Allocation of Purchase Price (Details) - USD ($)
 1 Months Ended 2 Months Ended 3 Months Ended 7 Months Ended 10 Months Ended
Feb. 16, 2018
Nov. 17, 2017
Dec. 31, 2017
Mar. 31, 2018
Jun. 30, 2018
Sep. 30, 2018
Sep. 30, 2018
Fair value of liabilities assumed:              
Goodwill     $ 14,292,282     $ 16,411,123 $ 16,411,123
Avadel              
Business Acquisition [Line Items]              
Inventory $ 718,000            
Prepaid expenses and other current assets 570,000            
Identifiable Intangible Assets:              
Identifiable Intangible Assets: 18,291,000            
Fair value of liabilities assumed:              
Accrued expenses and other current liabilities (362,000)            
Fair value of debt assumed (15,075,000)            
Fair value of contingent consideration and deferred payments (7,920,000)            
Total identifiable net assets (3,778,000)            
Fair value of consideration transferred 1            
Goodwill 3,778,001            
Measurement Period Adjustments              
Inventory       $ 300,000 $ (1,831,000)    
Prepaid assets         570,000    
Intangible assets         1,838,000 $ 1,838,000  
Accrued expenses         (362,000)    
Fair value of debt assumed         197,303    
Fair value of contingent consideration and deferred payments         44,835    
Total net liabilities assumed         367,468    
Consideration exchanged         (240,999)    
Goodwill         $ (608,467)    
TRx              
Business Acquisition [Line Items]              
Cash and cash equivalents   $ 11,068          
Accounts receivable, net   2,872,545          
Inventory   495,777          
Prepaid expenses and other current assets   134,281          
Other receivables   2,764,515          
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   19,596,000          
Total assets acquired   25,874,186          
Fair value of liabilities assumed:              
Accounts payable   192,706          
Accrued expenses and other current liabilities   (8,614,937)          
Deferred tax liability   918,613          
Total liabilities assumed   9,726,256          
Total identifiable net assets   16,147,930          
Fair value of consideration transferred   28,781,052          
Goodwill   12,633,122          
Measurement Period Adjustments              
Accounts receivable, net             0
Inventory     $ 200,000       0
Prepaid assets             0
Other receivables             2,764,515
Intangible assets             1,528,000
Total assets acquired             4,292,515
Accounts payable             0
Accrued expenses             (3,764,515)
Deferred tax liability             78,840
Fair value of contingent consideration and deferred payments             (1,210,000)
Total liabilities assumed             3,843,355
Total net liabilities assumed             449,160
Consideration exchanged             (1,210,000)
Goodwill             (1,659,160)
PAI Sales & Marketing Agreement | TRx              
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   2,553,000          
Measurement Period Adjustments              
Intangible assets             219,000
Metafolin | Acquired product marketing rights | TRx              
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   11,987,000          
Measurement Period Adjustments              
Intangible assets             1,522,000
Millipred | Acquired product marketing rights | TRx              
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   5,056,000          
Measurement Period Adjustments              
Intangible assets             342,000
Ulesfia | Acquired product marketing rights | TRx              
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   0          
Measurement Period Adjustments              
Intangible assets             $ (555,000)
Previously Reported | Avadel              
Business Acquisition [Line Items]              
Inventory 2,549,000            
Prepaid expenses and other current assets 0            
Identifiable Intangible Assets:              
Identifiable Intangible Assets: 16,453,000            
Fair value of liabilities assumed:              
Accrued expenses and other current liabilities 0            
Fair value of debt assumed (15,272,303)            
Fair value of contingent consideration and deferred payments (7,875,165)            
Total identifiable net assets (4,145,468)            
Fair value of consideration transferred 241,000            
Goodwill $ 4,386,468            
Previously Reported | TRx              
Business Acquisition [Line Items]              
Cash and cash equivalents   11,068          
Accounts receivable, net   2,872,545          
Inventory   495,777          
Prepaid expenses and other current assets   134,281          
Other receivables   0          
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   18,068,000          
Total assets acquired   21,581,671          
Fair value of liabilities assumed:              
Accounts payable   192,706          
Accrued expenses and other current liabilities   (4,850,422)          
Deferred tax liability   839,773          
Total liabilities assumed   5,882,901          
Total identifiable net assets   15,698,770          
Fair value of consideration transferred   29,991,052          
Goodwill   14,292,282          
Previously Reported | PAI Sales & Marketing Agreement | TRx              
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   2,334,000          
Previously Reported | Metafolin | Acquired product marketing rights | TRx              
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   10,465,000          
Previously Reported | Millipred | Acquired product marketing rights | TRx              
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   4,714,000          
Previously Reported | Ulesfia | Acquired product marketing rights | TRx              
Identifiable Intangible Assets:              
Identifiable Intangible Assets:   $ 555,000