Stock-based Activity (Details 1)	3 Months Ended
	Mar. 31, 2016 $ / shares shares
Options Outstanding
Options Outstanding, Outstanding at beginning of period | shares	3,243,041
Options Granted | shares	1,346,000
Options Exercised | shares	0
Options Forfeited/cancelled/expired | shares	(93,337)
Options Outstanding and expected to vest at end of period | shares	4,495,704
Vested and exercisable at March 31, 2016 | shares	179,437
Weighted-Average Exercise Price
Weighted-Average Exercise Price, Outstanding at beginning of period | $ / shares	$ 2.36
Weighted-Average Exercise Price, Granted | $ / shares	0.76
Weighted-Average Exercise Price, Exercised | $ / shares	0.00
Weighted-Average Exercise Price, Forfeited/cancelled/expired | $ / shares	2.21
Weighted-Average Exercise Price, Outstanding and expected to vest at end of period | $ / shares	1.93
Weighted-Average Exercise Price, Vested and exercisable at March 31, 2016 | $ / shares	$ 3.66