Stock-based compensation Stock Compensation (Tables)

6 Months Ended

Jul. 31, 2016

Stock-based compensation [Abstract]

Stock-based compensation expense [Table Text Block]

	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

Fair value assumptions [Table Text Block]

	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 [Table Text Block]

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 [Table Text Block]

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

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, 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