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Retirement plans Plan assets (Tables)
12 Months Ended
Jan. 31, 2013
Plan assets [Abstract]  
Plan assets [Table Text Block]
Plan assets
Market Value

Vanguard balanced index fund
$5,554
Vanguard inflation protected fund
279

Fifth Third Banksafe Trust
106

Vanguard REIT index fund
126

  Total at January 31, 2013

$6,065