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Comprehensive (loss) income
 6 Months Ended
Jul. 31, 2011
Comprehensive Income [Abstract]  
Comprehensive Income (Loss) Note [Text Block]
Comprehensive (loss) income, net of tax.
 
Three Months Ended July 31,
Six Months Ended July 31,
 
2011


2010


2011


2010


Net (loss) income


($1,837
)


$2,882




($3,329
)


$2,398


Interest rate swap
(36
)
(308
)
117


(308
)
Foreign currency translation adjustments
(366
)
(401
)
481


(27
)
Comprehensive (loss) income


($2,239
)


$2,173




($2,731
)


$2,063