Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Condensed Consolidated Statements Of Operations [Abstract]
Revenue:
Operating expenses:
General and administrative	642	243	1,170	399
Research and development	1,453	547	2,443	968
Amortization of intangible assets	166	166	332	332
Total operating expenses	2,261	956	3,945	1,699
Other income (expense):
Interest income	3		3
Total other income, net	3		3
Loss from operations, before income taxes	(2,258)	(956)	(3,942)	(1,699)
Income tax benefit		357		656
Net loss	$ (2,258)	$ (599)	$ (3,942)	$ (1,043)
Net loss per common share - basic and diluted	$ (0.23)	$ (0.08)	$ (0.45)	$ (0.14)
Weighted average number of common shares outstanding - basic and diluted	9,791	7,565	8,678	7,565