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Net Income per Common Share (Detail Textuals)	6 Months Ended
Net Income per Common Share (Detail Textuals)	Jul. 31, 2014	Jul. 31, 2013
Earnings Per Share [Abstract]
Common stock excluded from the diluted net income per share calculation	328,000
Common stock issued in connection with exercise or vesting of equity awards	216,654	272,365

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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