Other Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2012	Feb. 29, 2012
Components of other accrued expenses
Accrued taxes	$ 388	$ 293
Accrued legal and professional fees	1,082	852
Accrued interest	101	48
Accrued utilities	76	93
Accrued repair and maintenance	775	775
Accrued construction retainage		1,759
Accrued phantom stock obligation	438	475
Accrued acquisition related obligations	142	205
Other accrued expenses, Total	$ 3,002	$ 4,500