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Stock-based compensation Stock Compensation (Tables)
 9 Months Ended
Oct. 31, 2015
Stock-based compensation [Abstract]  
Stock-based compensation expense [Table Text Block]
 
Three Months Ended October 31,
Nine Months Ended October 31,
 
2015

2014

2015

2014

Stock-based compensation expense (benefit)

$87


$74


$50


($217
)
Restricted stock based compensation expense

$79


$142


$337


$122
Fair value assumptions [Table Text Block]
 
Nine Months Ended October 31,
Fair value assumptions
2015
2014
Expected volatility
40.88% - 59.39%
40.88% - 59.39%
Risk free interest rate
.74% - 1.77%
.74% - 1.77%
Dividend yield
none
none
Expected life
4.9 - 5.1 years
4.9 - 5.1 years
Option activity [Table Text Block]

Option activity
Options
Weighted Average Exercise Price
Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value
Outstanding at January 31, 2015
764


$11.45

5.7

$—

Granted
51

6.38

 
 
Expired or forfeited
(62
)
10.11

 
 
Outstanding end of period
753

11.22

5.4
1

 
 
 
 
 
Exercisable end of period
567


$11.81

4.4

$—
Unvested option activity [Table Text Block]
Unvested option activity
Options
Weighted Average Grant Date Fair Value
Aggregate Intrinsic Value
Outstanding at January 31, 2015
232


$10.11


$—

Granted
51

6.38

 
Vested
(87
)
 
 
Expired or forfeited
(10
)
10.55

 
Outstanding end of period
186


$9.40


$—
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
Restricted stock activity
Restricted Shares
Weighted Average Grant Price Per Share
Aggregate Intrinsic Value
Outstanding at January 31, 2015
33


$11.53


$186

Granted
92

6.38

 
Issued
(48
)
 
 
Outstanding end of period
77


$8.60


$436