Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Summary of significant accounting policies (Textual)
Deferred tax liability related to unrecognized gains and losses on short-term investments	$ 0	$ 0
Allowance for doubtful accounts (in dollars)	2,000	$ 2,000
FDIC insured limit	250,000
Deposits in excess of FDIC insured limits	$ 374,000
Number of shares options vested	0
Treasury bills [Member]
Summary of significant accounting policies (Textual)
Maturity term	One year or less.
Certificates of deposit [Member]
Summary of significant accounting policies (Textual)
Maturity term	One to three years.