Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue:
Net product revenue	$ 101,000	$ 138,000	$ 210,000	$ 306,000
Collaboration agreement revenue	11,000	6,000	39,000	16,000
Total revenue	112,000	144,000	249,000	322,000
Costs and expenses:
Cost of goods sold	203,000	156,000	378,000	382,000
Research and development	1,295,000	497,000	2,328,000	938,000
Selling, general and administrative	1,582,000	869,000	3,386,000	1,456,000
Total costs and expenses	3,080,000	1,522,000	6,092,000	2,776,000
Operating loss	(2,968,000)	(1,378,000)	(5,843,000)	(2,454,000)
Other income (expense):
Interest income	23,000		23,000
Interest expense	0	(557,000)	0	(1,107,000)
Change in fair value of convertible preferred stock warrant liability		167,000		220,000
Change in fair value of maturity date preferred stock warrant liability		8,000		7,000
Change in fair value of convertible shareholder notes derivative liability		(217,000)		(139,000)
Other income (expense), net		(1,000)	(1,000)	(1,000)
Total other income (expense), net	23,000	(600,000)	22,000	(1,020,000)
Net loss	$ (2,945,000)	$ (1,978,000)	$ (5,821,000)	$ (3,474,000)
Net loss per share, basic and diluted (in dollars per share)	$ (0.01)	$ (0.11)	$ (0.01)	$ (0.19)
Weighted-average shares used in computing net loss per share, basic and diluted (in shares)	457,682,784	18,723,511	457,668,755	18,723,511