Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jul. 31, 2017

Accounting Policies [Abstract]

Shares outstanding for the earnings per share calculations

Earnings per Share. Basic earnings per share is calculated by dividing net income (loss) by the weighted-average number of common shares outstanding during the period. Diluted earnings per share includes the dilutive effects of any stock options and restricted stock units granted, which is calculated using the treasury-stock method. The following table sets forth the shares outstanding for the earnings per share calculations: 

	Three Months Ended   July 31,		Six Months Ended   July 31,
(in thousands)	2017	2016	2017	2016
Weighted-average common shares outstanding - Basic	31,094	30,731	31,034	30,696
Dilutive effect of stock options and restricted stock units	341	—	258	—
Weighted-average common shares outstanding - Diluted	31,435	30,731	31,292	30,696