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Debt (Long-term Debt Repayments) (Details) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2016
Jan. 31, 2015
Jan. 31, 2014
Debt Disclosure [Abstract]      
2015   $ 2,248  
2016 6,000    
2017     0
2018     0
2019     0
Thereafter     $ 0