Stock-based compensation Stock Compensation (Tables)

6 Months Ended

Jul. 31, 2018

Stock-based compensation [Abstract]

Stock-based compensation expense [Table Text Block]

	Three Months Ended July 31,				Six Months Ended July 31,
	2018		2017		2018		2017
Stock-based compensation expense		$9		$65		$23		$59
Restricted stock-based compensation expense		$432		$452		$688		$647

Option activity [Table Text Block]

Option activity	No. of Shares UnderlyingOptions		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at January 31, 2018	358			$9.44	4.0		$482
Exercised	(37	)	6.88			37
Expired or forfeited	(53	)	17.14
Outstanding end of period	268		8.42		4.1	392
Exercisable end of period	257			$8.48	3.9		$370

Unvested option activity [Table Text Block]

Unvested option activity	No. of Shares UnderlyingOptions		Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
Outstanding at January 31, 2018	31			$8.24		$50
Vested	(14	)
Expired or forfeited	(6	)
Outstanding end of period	11			$7.00		$23

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 (unvested) at January 31, 2018	360			$9.05		$3,254
Granted	124		9.75
Vested and issued	(88	)
Forfeited	(63	)	7.19
Outstanding (unvested) end of period	333			$9.05		$3,022