Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

The Company’s amortizable and unamortizable intangible assets at December 31, 2018 and 2017, respectively, are as follows: 

	2018										2017
Goodwill and Intangible Assets:	Gross Value		Accumulated Amortization			Impairment			Net Carrying Amount		Gross Value		Accumulated Amortization			Net Carrying Amount
Amortizable intangible assets:
Acquired developed technology - Noctiva	$	73,111	$	(7,024	)	$	(66,087	)	$	—	$	73,111	$	(1,401	)	$	71,710
Acquired developed technology - Vazculep	12,061		(10,432		)	—			1,629		12,061		(9,616		)	2,445
Acquired product marketing rights (1)	—		—			—			—		16,600		(2,132		)	14,468
Acquired developed technology (1)	—		—			—			—		4,300		(634		)	3,666
Total amortizable intangible assets	$	85,172	$	(17,456	)	$	(66,087	)	$	1,629	$	106,072	$	(13,783	)	$	92,289
Unamortizable intangible assets:
Goodwill	$	18,491	$	—		$	—		$	18,491	$	18,491	$	—		$	18,491
Total unamortizable intangible assets	$	18,491	$	—		$	—		$	18,491	$	18,491	$	—		$	18,491

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

At December 31, 2018, total future amortization of intangible assets for the next five years is as follows: 

Estimated Amortization Expense:	Amount
2019	$	815
2020	814
2021	—
2022	—
2023	—