XML 41 R14.htm IDEA: XBRL DOCUMENT v2.4.0.6
Interest expense, net
 6 Months Ended
Jul. 31, 2012
Interest expense, net [Abstract]  
Interest Income and Interest Expense Disclosure [Text Block]
Interest expense, net.
 
Three Months Ended July 31,
Six Months Ended July 31,
 
2012

2011

2012

2011

Interest expense

$585


$551


$1,086


$1,071

Interest income
(165
)
(219
)
(295
)
(452
)
Interest expense, net

$420


$332


$791


$619