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Earnings Per Share (Details Textual)	3 Months Ended
Earnings Per Share (Details Textual)	Apr. 30, 2015	Apr. 30, 2014
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted Average Number of Shares, Treasury Stock	356,441	356,441
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	566,015

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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