Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues
Product revenues	$ 61,136	$ 46,899
Other revenues	766	536
Total revenues	61,902	47,435
Cost and expenses
Cost of product revenues	32,340	24,843
Research and development	8,759	5,630
Selling, general and administrative	30,408	23,239
Total cost and expenses	71,507	53,712
Loss from operations	(9,605)	(6,277)
Interest Expense	(115)	(1,010)
Interest expense from changes in the fair value of long term debt		(1,800)
Interest and other income (expense), net	1,035	(917)
Net loss	(8,685)	(10,004)
Unrealized gain on available-for-sale securities, net of tax	1,811
Comprehensive loss	$ (6,874)	$ (10,004)
Basic and diluted net loss per share (in dollars per share)	$ (0.17)	$ (1.89)
Weighted-average number of shares used in computing basic and diluted net loss per share	50,439	5,289