Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Commitment And Contingencies [Line Items]
Lease Rent Expense	$ 900	$ 800
Lease expiry date	Mar. 23, 2016
Chief Executive Officer and Ordway Properties, LLC
Commitment And Contingencies [Line Items]
Lease Rent Expense	$ 508	$ 314
Maximum
Commitment And Contingencies [Line Items]
Lease expiration year	2025
Maximum | Chief Executive Officer and Ordway Properties, LLC
Commitment And Contingencies [Line Items]
Lease expiration year	2025