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Income taxes Components of income tax expense (benefit) (Tables)
 12 Months Ended
Jan. 31, 2013
Income taxes [Abstract]  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Components of income tax expense (benefit)
 
 
Current
 
 
Federal
($1,255)
$183
Foreign
229

627

State and other
(33
)
253

Subtotal
(1,059
)
1,063

Deferred
 
 
Federal
11,816

(880
)
Foreign
413

(273
)
State and other
(380
)
107

Subtotal
11,849

(1,046
)
Total
$10,790
$17