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Stock-based compensation
6 Months Ended
Jul. 31, 2013
Stock-based compensation [Abstract]  
Stock-based compensation [Text Block]
Stock-based compensation. The Company has stock-based compensation awards that can be granted to eligible employees, officers or directors.
 
Three Months Ended July 31,
Six Months Ended July 31,
 
2013

2012

2013

2012

Stock-based compensation expense

($51
)

$174


$68


$260



The fair value of the outstanding option awards was estimated on the grant dates using the Black-Scholes option pricing model.
 
Six Months Ended July 31,
Fair value assumptions
2013
2012
Expected volatility
51.78% - 65.54%
57.02% - 66.82%
Risk free interest rate
.74% - 2.82%
.74% - 3.57%
Dividend yield
none
none
Expected life
4.9 - 5.7 years
4.9 - 5.7 years


Option activity
Options
Weighted Average Exercise Price Per Share
Weighted Average Remaining Contractual Term in Years
Aggregate Intrinsic Value
Outstanding at January 31, 2013
969


$10.77

6.6

$40

Granted
97

10.46

 
 
Exercised
(74
)
6.33

 
265

Expired or forfeited
(43
)
11.11

 
 
Outstanding end of period
949

11.07

6.5
2,325

 
 
 
 
 
Exercisable end of period
670


$12.29

5.5

$1,572



Unvested option activity
Unvested Options Outstanding
Weighted Average Exercise Price Per Share
Aggregate Intrinsic Value
Outstanding at January 31, 2013
383


$6.91


$4

Granted
97

10.46

 
Vested
(176
)
 
 
Expired or forfeited
(25
)
6.96

 
Outstanding end of period
279


$8.14


$753



As of July 31, 2013, there was $1.1 million of total unrecognized compensation expense related to unvested stock options. The expense is expected to be recognized over a period of 2.9 years.