CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Feb. 29, 2016	Feb. 28, 2015
Accounts receivable, allowance for doubtful accounts	$ 934	$ 665
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	$ 43,316	$ 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	866,319	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	41,609,601	39,054,719
Common stock, shares outstanding	41,609,601	39,054,719
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