STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Revenues	$ 885	$ 6,041
Operating expenses:
General and administrative	4,901	6,314
Research and development	2,551	2,264
Total operating expenses	7,452	8,578
Operating loss	(6,567)	(2,537)
Other income:
Interest and Other Income, net	22	22
Net loss	$ (6,545)	$ (2,515)
Basic and diluted net loss per share (in dollars per share)	$ (0.39)	$ (0.16)
Shares used in computation of basic and diluted net loss per share (in shares)	16,778	15,827
Comprehensive Loss:
Net loss	$ (6,545)	$ (2,515)
Unrealized holding gain (loss) on securities available for sale	28	(11)
Comprehensive loss	$ (6,517)	$ (2,526)