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Earnings Per Share ("EPS") (Narrative) (Details)	3 Months Ended		6 Months Ended
Earnings Per Share ("EPS") (Narrative) (Details)	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Earnings Per Share [Abstract]
Shares excluded from the computation of diluted earnings	0	6,236	0	6,236

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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