CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues:
Product sales	$ 14,108	$ 10,849
Total revenues	14,108	10,849
Costs and expenses:
Cost of product sales	6,560	5,568
Gross profit	7,548	5,281
Research and development	3,536	4,377
Selling, general and administrative	6,004	5,476
Total operating expenses	9,540	9,853
Loss from operations	(1,992)	(4,572)
Other income (expense):
Increase in fair value of warrants	(1,640)	(317)
Foreign currency translation (loss) gain	(10)	16
Interest income	5	13
Interest expense	(3)	(2)
Other Nonoperating Income (Expense)	(10)	0
Total other income (expense)	(1,658)	(290)
Net loss	$ (3,650)	$ (4,862)
Net loss per share attributable to common shareholders (Basic and Diluted) (see note 11)	$ (0.24)	$ (0.27)
Weighted average number of common shares outstanding (Basic and Diluted)	22,604	23,786