Consolidated Statements of Operations and Comprehensive Loss (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Sales	$ 362	$ 531	$ 1,212	$ 1,741
Operating Expenses
Cost of goods sold	2,059	1,077	4,096	3,465
Research and development	2,909	1,228	7,855	4,552
Sales and marketing	437	1,025	1,490	2,991
General and administrative	1,279	777	2,665	2,176
Merger expenses	2,891	0	2,891	0
Total Operating Expenses	9,575	4,107	18,997	13,184
Operating Loss	(9,213)	(3,576)	(17,785)	(11,443)
Other (Expense) Income
Remeasurement of fair value of preferred stock warrant liability	(1,800)	0	(1,800)	0
Interest expense, net	(252)	(94)	(742)	(251)
Total Other (Expense) Income, net	(2,052)	(94)	(2,542)	(251)
Net Loss	(11,265)	(3,670)	(20,327)	(11,694)
Other comprehensive income (loss)	0	0	0	0
Comprehensive loss	$ (11,265)	$ (3,670)	$ (20,327)	$ (11,694)
Net loss per share - basic and diluted (in dollars per share)	$ (0.21)	$ (0.68)	$ (0.95)	$ (2.17)
Weighted average common shares outstanding - basic and diluted (in shares)	52,921	5,391	21,409	5,391