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Stock Based Compensation (Tables)
 12 Months Ended
Jan. 31, 2016
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]  
Schedule of Stock Option Activity
A summary of stock option activity follows:
 
Options
 
Weighted Average Exercise Price
 
Remaining Life in Years
 
Aggregate intrinsic value
Outstanding as of February 1, 2015
2,437,323

 
$
4.52

 
 
 
 
Granted
1,011,828

 
3.02

 
 
 
 
Exercised
(75,000
)
 
2.15

 
 
 
 
Expired
(704,326
)
 
3.67

 
 
 
 
Forfeited
(257,946
)
 
4.97

 
 
 
 
Outstanding as of January 31, 2016
2,411,879

 
$
4.16

(1)
8.09
 
$
4,003,719

Exercisable as of January 31, 2016
1,000,037

 
$
4.75

(2)
6.82
 
$
1,660,061

Vested or expected to vest as of January 31, 2016
1,990,872

 
$
4.25

 
7.90
 
$
3,304,848


_______________
(1)
The exercise prices range from $1.53 to $8.17, of which 207,924 shares are between $1.53 and $2.00 per share, 862,938 shares are between $2.08 and $4.00 per share, and 1,341,017 shares are between $4.02 and $8.17 per share.
(2)
The exercise prices range from $1.53 to $8.17, of which 97,924 shares are between $1.53 and $2.00 per share, 268,356 shares are between $2.08 and $4.00 per share, and 633,757 shares are between $4.02 and $8.17 per share.
Schedule of Weighted-Average Assumptions
The fiscal 2015 and 2014 stock-based compensation was estimated at the date of grant using a Black-Scholes option pricing model with the following weighted average assumptions for each fiscal year:
 
2015
 
2014
Expected life
6 years

 
6 years

Risk-free interest rate
1.51
%
 
1.35
%
Weighted average volatility factor
0.59

 
0.60

Dividend yield
—

 
—

Forfeiture rate
30
%
 
22
%
Schedule of Restricted Stock Award Activity
A summary of restricted stock award activity for fiscal 2014 and 2015 is presented below:

Non-vested Number of Shares
 
Weighted Average Grant Date Fair Value
Non-vested balance at January 31, 2014
29,698

 
$
6.01

Granted
120,306

 
4.31

Vested
(29,698
)
 
6.65

Forfeited/expired
—

 
—

Non-vested balance at January 31, 2015
120,306

 
$
4.31

Granted
118,180

 
2.62

Vested
(120,306
)
 
4.31

Forfeited/expired
(5,800
)
 
4.31

Non-vested balance at January 31, 2016
112,380

 
$
2.62