XML 99 R74.htm IDEA: XBRL DOCUMENT v2.4.0.8
Commitments and Contingencies - Product Warranty Accrual (Details) (USD $)
Feb. 28, 2014
Feb. 28, 2013
Feb. 29, 2012
Feb. 28, 2011
Loss Contingencies [Line Items]        
Reserve for warranty $ 1,338,000 $ 2,073,000 $ 1,670,000 $ 2,486,000
Electrical and Industrial Products [Member]
       
Loss Contingencies [Line Items]        
Letters of credit outstanding 18,500,000      
Reserve for warranty $ 1,300,000