Other Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2012	Feb. 29, 2012
Components of other accrued expenses
Accrued taxes	$ 340	$ 293
Accrued legal and professional fees	940	852
Accrued interest	107	48
Accrued utilities	63	93
Accrued repair and maintenance	775	775
Accrued construction retainage		1,759
Accrued phantom stock obligation	454	475
Accrued acquisition related obligations	164	205
Other accrued expenses, Total	$ 2,843	$ 4,500