CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue:
License revenue	$ 0	$ 46
Sales	7	0
Total revenue	7	46
Cost of sales	4	0
Gross profit	3	46
Operating expenses:
Research and development	823	470
General and administrative	2,639	1,975
Total operating expenses	3,462	2,445
Net operating loss	(3,459)	(2,399)
Other income (expense):
Interest income	10	0
Interest expense	(13)	(31)
Interest expense, related parties	(1)	(17)
Loss on extinguishment of unsecured promissory note	0	(9)
Other income (expense)	8	(32)
Total other income (expense)	4	(89)
Net loss	(3,455)	(2,488)
Series A convertible preferred stock dividends	0	(30)
Net loss and comprehensive loss	$ (3,455)	$ (2,518)
Weighted average common shares outstanding - basic and fully diluted (in shares)	10,160,917	4,409,135
Net loss per common share - basic and fully diluted (in dollars per shares)	$ (0.34)	$ (0.56)