Stock Option Plans, Shares Reserved and Warrants (Details) - 2009 Equity Incentive Plan [Member] - $ / shares	1 Months Ended	3 Months Ended	12 Months Ended
	Feb. 29, 2016	Mar. 31, 2016	Dec. 31, 2015
Number of options
Options outstanding, beginning		2,112,800
Options granted		1,005,697
Options excercised	1,258	(16,667)
Options outstanding, ending		3,101,830	2,112,800
Options exercisable		1,390,718	1,173,443
Weighted average exercise price
Options outstanding, beginning		$ 5.60
Options granted		4.10
Options exercised	$ 4.41	4.41
Options outstanding, ending		5.12	$ 5.60
Options exercisable		$ 5.50
Weighted average remaining contractual life
Balance		8 years 6 months	8 years 18 days
Options granted		9 years 9 months 29 days
Exercisable, ending		7 years 4 months 24 days