Severance Charges (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended
	May 31, 2013 Director	Apr. 30, 2013 Director	Jun. 30, 2013 Chief Information Officer [Member] Selling, General and Administrative Expenses [Member] Special Severance Benefits [Member]	Jun. 30, 2013 President [Member] Selling, General and Administrative Expenses [Member] Special Severance Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Number of directors	5	9
Number of existing directors	4
Number of new directors	1
Period over which aggregate benefits are to be paid			3 months	6 months
Base compensation owed, vacation pay, and severance payments				$ 148
Total severance charge			$ 46	$ 170