Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Net product revenue	$ 109,000	$ 168,000
Collaboration agreement revenue	28,000	10,000
Total revenue	137,000	178,000
Costs and expenses:
Cost of goods sold	175,000	226,000
Research and development	1,033,000	441,000
Selling, general and administrative	1,804,000	587,000
Total costs and expenses	3,012,000	1,254,000
Operating loss	(2,875,000)	(1,076,000)
Other income (expense):
Interest expense, net	0	(550,000)
Change in fair value of convertible preferred stock warrant liability		53,000
Change in fair value of maturity date preferred stock warrant liability		(1,000)
Change in fair value of convertible shareholder notes derivative liability		78,000
Other expense	(1,000)
Total other expense, net	(1,000)	(420,000)
Net loss	$ (2,876,000)	$ (1,496,000)
Net loss per share, basic and diluted (in dollars per share)	$ (0.01)	$ (0.08)
Weighted-average shares used in computing net loss per share, basic and diluted (in shares)	457,654,570	18,947,536