Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues
Product revenues	$ 44,519	$ 35,736	$ 91,418	$ 62,945
Other revenues	568	100	1,104	186
Total revenues	45,087	35,836	92,522	63,131
Cost and expenses:
Cost of product revenues	25,732	19,014	50,575	34,914
Research and Development Expense	6,741	4,122	12,371	8,420
Selling, general and administrative	28,086	13,905	51,325	28,284
Total cost and expenses	60,559	37,041	114,271	71,618
Loss from operations	(15,472)	(1,205)	(21,749)	(8,487)
Interest expense	(1,203)	(936)	(2,213)	(1,745)
Interest (expense) benefit from changes in the fair value of long term debt	(322)	1,340	(2,122)	534
Other income (expense), net	(2,684)	287	(3,601)	(432)
Net loss	$ (19,681)	$ (514)	$ (29,685)	$ (10,130)
Net loss per share attributable to common stockholders:
Basic and diluted (in dollars per share)	$ (3.58)	$ (0.11)	$ (5.50)	$ (2.17)
Shares used to compute net loss per share attributable to common stockholders:
Basic and diluted (in shares)	5,494	4,722	5,393	4,658