Stock-based compensation Stock Compensation (Tables)

3 Months Ended

Apr. 30, 2017

Stock-based compensation [Abstract]

Stock-based compensation expense [Table Text Block]

	Three Months Ended April 30,
	2017			2016
Stock-based compensation benefit		($6	)		($2	)
Restricted stock based compensation expense		$192			$390

Fair value assumptions [Table Text Block]

	Three Months Ended April 30,
Fair value assumptions	2017	2016
Expected volatility	43.2%	43.4%
Risk free interest rate	1.2%	1.7%
Dividend yield	0	0
Expected life	5.0	5.0

Option activity [Table Text Block]

Option activity	Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at January 31, 2017	524			$11.55	4.5		$534
Exercised	(19	)	6.78			23
Expired or forfeited	(13	)	11.54
Outstanding end of period	492		11.73		4.2	308
Exercisable end of period	423			$12.16	3.6		$266

Unvested option activity [Table Text Block]

Unvested option activity	Options		Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
Outstanding at January 31, 2017	74			$9.31		$69
Expired or forfeited	(5	)	11.81
Outstanding end of period	69			$9.14		$42

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, 2017	290			$8.75		$2,540
Granted	5		8.74
Issued	(3	)
Forfeited	(2	)	6.92
Outstanding end of period	290			$8.03		$2,331