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Intangible assets (Tables)

12 Months Ended

Dec. 31, 2018

Intangible assets

Schedule of intangible assets, net


		December 31,
		2018			2017
		(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			2,307			2,302
Other			1,035			1,035
			25,814			25,809
Accumulated amortization			(11,198)			(9,461)
		$	14,616		$	16,348

Schedule of aggregate amortization of intangible assets


Year ending		December 31,
		(in thousands)
2019		$	1,737
2020			1,737
2021			1,737
2022			1,737
2023			1,642
Thereafter			5,205
		$	13,795