Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Narrative (Details)

Acquisitions - Narrative (Details) - USD ($)				1 Months Ended	2 Months Ended	3 Months Ended		4 Months Ended
Acquisitions - Narrative (Details) - USD ($)	Feb. 16, 2018	Nov. 17, 2017	Apr. 01, 2017	Dec. 31, 2017	Mar. 31, 2018	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018
Business Acquisition [Line Items]
Goodwill				$ 14,292,282	$ 18,678,495	$ 18,678,495		$ 18,678,495
Cost of product sales					16,196	863,624	$ 0	29,254
Avadel
Business Acquisition [Line Items]
Cash	$ 1
Contingent consideration	7,900,000
Long-term debt acquired	15,272,303
Goodwill	$ 4,386,213
Goodwill tax deductible period	15 years
Fair value of consideration transferred	$ 240,745
Adjustment to inventory					1,597,000
Fair value assigned to intangible asset at purchase	16,453,000
TRx
Business Acquisition [Line Items]
Cash		$ 18,900,000
Goodwill		14,292,282
Fair value of consideration transferred		$ 29,991,052
Adjustment to inventory				$ 200,000
Unregistered shares of common stock issued or issuable as part of acquisition (in shares)		7,534,884
Shares issued for purchase of business		$ 8,500,000
Shares issued upon closing (in shares)		5,184,920
Contingent shares issuable as part of acquisition (in shares)		2,349,968
Goodwill, expected tax deductible amount		$ 9,200,000
General and administrative \| Avadel
Business Acquisition [Line Items]
Transaction costs					$ 100,000	$ 100,000		$ 100,000
PAI Sales & Marketing Agreement \| TRx
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)		2 years
Fair value assigned to intangible asset at purchase		$ 2,334,000
LiquiTime Process \| Avadel
Business Acquisition [Line Items]
Contingent consideration	$ 240,744
Metafolin \| Acquired product marketing rights \| TRx
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)		15 years
Fair value assigned to intangible asset at purchase		$ 10,465,000
Millipred \| Acquired product marketing rights \| TRx
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)		4 years
Fair value assigned to intangible asset at purchase		$ 4,714,000
Ulesfia \| Acquired product marketing rights \| TRx
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life (in years)		3 years
Fair value assigned to intangible asset at purchase		$ 555,000
TRx \| PAI Sales & Marketing Agreement \| PAI
Business Acquisition [Line Items]
Contract cancellation notice period			30 days			30 days