Common Stock (Details)	12 Months Ended
	Feb. 29, 2016 vote $ / shares
Class of Stock [Line Items]
Stock Exchange Minimum Bid Price Per Share | $ / shares	$ 1.00
Class A Common Stock
Class of Stock [Line Items]
Number of votes per share of common stock	1
Class B Common Stock
Class of Stock [Line Items]
Number of votes per share of common stock	10
Class C Common Stock
Class of Stock [Line Items]
Number of votes per share of common stock	0