CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Feb. 28, 2015	Feb. 28, 2014
Accounts receivable, allowance for doubtful accounts	$ 665	$ 574
Deferred debt issuance costs, accumulated amortization	868	577
Series A convertible preferred stock, par value	$ 0.01	$ 0.01
Series A convertible preferred stock, liquidation preference	$ 50.00	$ 50.00
Series A convertible preferred stock, aggregate liquidation preference and redemption amount	$ 46,450	$ 46,450
Series A convertible preferred stock, shares authorized	2,875,000	2,875,000
Series A convertible preferred stock, shares issued		1,337,641
Series A convertible preferred stock, shares outstanding	928,991	1,337,641
Class A Common Stock
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	170,000,000	170,000,000
Common stock, shares issued	39,054,719	37,267,123
Common stock, shares outstanding	39,054,719	37,267,123
Class B Common Stock
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	4,569,464	4,569,464
Common stock, shares outstanding	4,569,464	4,569,464
Class C Common Stock
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	0	0
Shares in trust
Convertible Preferred Stock	0	400,000