Stockholders' Equity - Stock options outstanding and exercisable (Details) (USD $)					12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2014 Stock Options	Feb. 28, 2014 Stock Options Exercise Price Range $.42 to $.50	Feb. 28, 2014 Stock Options Exercise Price Range $.51 to $1.00	Feb. 28, 2014 Stock Options Exercise Price Range $1.01 to $1.95
Range of exercise prices, low end (in dollars per share)					$ 0.42	$ 0.51	$ 1.01
Range of exercise prices, high end (in dollars per share)					$ 0.50	$ 1.00	$ 1.95
Number Outstanding	946,573	1,322,718	1,318,460	946,573	63,500	630,573	252,500
Weighted-Average Remaining Life in Years					7 years 8 months 27 days	8 years 3 months 18 days	6 years 18 days
Weighted Average Exercise Price	$ 0.82	$ 0.77	$ 1.11		$ 0.47	$ 0.63	$ 1.16
Number Exercisable	435,714	549,425	1,204,660	435,714	36,000	275,214	124,500