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Intangible assets (Tables)

12 Months Ended

Dec. 31, 2019

Intangible assets

Schedule of intangible assets, net


		December 31,
		2019			2018
		(in thousands)
Proprietary modified-release drug delivery technology		$	15,600		$	15,600
Tussionex ANDA			4,829			4,829
CPI profit sharing			2,043			2,043
Patents			1,971			2,307
Other			1,035			1,035
			25,478			25,814
Accumulated amortization			(12,935)			(11,198)
		$	12,543		$	14,616

Schedule of aggregate amortization of intangible assets


Year ending		December 31,
		(in thousands)
2020		$	1,737
2021			1,737
2022			1,737
2023			1,642
2024			1,333
Thereafter			3,871
		$	12,057