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Contingencies (Tables)
12 Months Ended
Jan. 31, 2013
Contingencies [Abstract]  
Estimated payments under the self-insurance programs
Estimated payments under the self-insurance programs are as follows (in thousands):
Year ending January 31,
 
2013
$
400

2014
525

2015
525

2016
525

2017
525

Thereafter
510

Total
3,010

Discount to net present value
(25
)
 
$
2,985