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Net Income (Loss) per Share (Tables)
 6 Months Ended
Jul. 31, 2017
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
 
 
Three Months Ended
 
Six Months Ended
 
 
7/31/2017
 
7/31/2016
 
7/31/2017
 
7/31/2016
 
 
(In thousands, except per share data)
Net income
 
$
5,028

 
$
6,886

 
$
2,817

 
$
3,747

Weighted average shares outstanding
 
15,211

 
15,036

 
15,170

 
15,004

Net effect of dilutive shares - based on the treasury stock method using average market price
 
74

 
111

 
63

 
96

Totals
 
15,285

 
15,147

 
15,233

 
15,100

 
 
 
 
 
 
 
 
 
Net income per share - basic
 
$
0.33

 
$
0.46

 
$
0.19

 
$
0.25

Net income per share - diluted
 
$
0.33

 
$
0.45

 
$
0.18

 
$
0.25