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Stock-based compensation
 6 Months Ended
Jul. 31, 2016
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,
 
2016

2015

2016

2015

Stock-based compensation benefit

($282
)

($96
)

($284
)

($37
)
Restricted stock based compensation expense

$390


$169


$668


$258



Stock-based compensation for 2016 was a benefit year-to-date due to cancellations. Most of these cancellations related to former employees from the Company's discontinued operations. The increase in the restricted stock based compensation expense relates to a grant in March 2016 and the conversion of performance restricted stock units to time-based restricted shares. This increase is partially offset by a decrease in management incentive compensation expense.

Stock Options. 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
2016
2015
Expected volatility
40.88% - 57.02%
40.88% - 59.39%
Risk free interest rate
.74% - 1.77%
.74% - 1.77%
Dividend yield
none
none
Expected life
5.0 - 5.1 years
4.9 - 5.1 years


Option activity
Options
Weighted Average Exercise Price
Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value
Outstanding at January 31, 2016
720


$11.38

5.1

$34

Granted
22

7.33

 
 
Exercised
(28
)
6.50

 
26

Expired or forfeited
(110
)
10.42

 
 
Outstanding end of period
604

11.63

4.9
259

 
 
 
 
 
Exercisable end of period
511


$12.05

4.3

$220



Unvested option activity
Options
Weighted Average Grant Date Fair Value
Aggregate Intrinsic Value
Outstanding at January 31, 2016
166


$9.51


$—

Granted
22

7.33

 
Vested
(60
)
 
 
Expired or forfeited
(35
)
8.99

 
Outstanding end of period
93


$9.33


$39



As of July 31, 2016, there was $0.3 million of total unrecognized compensation expense related to unvested stock options. The expense is expected to be recognized over a period of 2.3 years.

Restricted stock. The following table summarizes restricted stock activity for the year:
Restricted stock activity
Restricted Shares
Weighted Average Grant Price Per Share
Aggregate Intrinsic Value
Outstanding at January 31, 2016
163


$8.60


$1,040

Granted
241

7.26

 
Issued
(94
)
 
 
Forfeited
(1
)
6.38

 
Outstanding end of period
309


$7.91


$2,157



As of July 31, 2016, there was $0.8 million of unrecognized compensation expense related to unvested restricted stock granted under the plans. The cost is expected to be recognized over the weighted-average period of 2.9 years.