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Subsequent Events	6 Months Ended
Subsequent Events	Jul. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	17. Subsequent Events As of September 7, 2017, a total of 59,143 shares have been repurchased for approximately $2.7 million in cash and recorded as a reduction to equity after the balance sheet date. As of September 7, 2017, there was approximately $45.1 million available for repurchases under the repurchase program through June 30, 2018.