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Stock Option Plans (Tables)
 12 Months Ended
Jan. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Fair Value Option Award
The assumptions for the periods indicated are noted in the following table.
Weighted average Black-Scholes-Merton fair value assumptions
 
Years Ending January 31,
 
2018
 
2017
 
2016
Risk free interest rate
1.89 - 2.01%
 
—
 
1.34 - 1.55%
Expected life
4.87 - 6.87 yrs
 
—
 
4.87 - 6.87 yrs
Expected volatility
42 - 47%
 
—
 
50 - 52%
Expected dividend yield
0.0%
 
—
 
0.0%
Summary of Company's Stock Option Activity
The following table presents a summary of the Company’s stock option activity for the fiscal year ended January 31, 2018:
 
Number of
Shares
(in thousands)
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Term
(in years)
 
Aggregate
Intrinsic
Value
(in thousands)
Outstanding, January 31, 2017
1,781

 
$
9.27

 
5.90
 
$
778

Granted
549

 
4.66

 
 
 
 
Exercised
—

 
—

 
 
 
 
Forfeited
(94
)
 
11.24

 
 
 
 
Expired
(64
)
 
17.70

 
 
 
 
Outstanding, January 31, 2018
2,172

 
$
7.75

 
6.16
 
$
320

Exercisable at January 31, 2018
1,400

 
$
9.51

 
4.84
 
$
214

Vested and expected to vest at January 31, 2018
2,149

 
$
7.53

 
6.01
 
$
318
Restricted Stock and Changes During Period
Restricted stock as of January 31, 2018 and changes during the fiscal year ended January 31, 2018 were as follows:
 
Year Ended January 31, 2018
 
Number of
Shares
(in thousands)
 
Weighted Average
Grant Date Fair
Value
Unvested, beginning of period
12

 
$
11.89

Granted
—

 
—

Vested
(10
)
 
13.03

Canceled
—

 
—

Unvested, end of period
2

 
$
9.97