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Subsequent Events	12 Months Ended
Subsequent Events	Jan. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	17. Subsequent Events In March 2017, the Company repurchased a total of 162,738 shares for approximately $8.8 million in cash. As of March 30, 2017, the Company had repurchased a total of 567,827 shares for approximately $29.0 million in cash under the Company’s repurchase program.