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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues
Product revenues, net	$ 75,040	$ 73,061	$ 149,556	$ 136,810
Costs and expenses
Cost of product revenues	48,654	46,838	97,818	89,944
Research and development	2,459	2,237	5,451	4,505
Selling, general and administrative	28,935	31,279	61,287	62,861
Total costs and expenses	80,048	80,354	164,556	157,310
Loss from operations	(5,008)	(7,293)	(15,000)	(20,500)
Interest expense	(236)	(6,158)	(470)	(11,858)
Interest income	532	391	1,058	646
Net loss	$ (4,712)	$ (13,060)	$ (14,412)	$ (31,712)
Loss per share - basic and diluted	$ (0.14)	$ (0.40)	$ (0.43)	$ (0.96)
Weighted-average shares - basic and diluted	33,397,709	32,967,718	33,338,243	32,935,873

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