Stock-based compensation Stock Compensation (Tables)

6 Months Ended

Jul. 31, 2014

Stock-based compensation [Abstract]

Stock-based compensation expense [Table Text Block]

	Three Months Ended July 31,					Six Months Ended July 31,
	2014		2013			2014			2013
Stock-based compensation expense (benefit)		$90		($62	)		($291	)		$57
Restricted stock based compensation expense		$176		$226			$107			$226

Fair value assumptions [Table Text Block]

	Six Months Ended July 31,
Fair value assumptions	2014	2013
Expected volatility	40.88% - 60.26%	51.78% - 65.54%
Risk free interest rate	.74% - 2.19%	.74% - 2.82%
Dividend yield	none	none
Expected life	4.9 - 5.7 years	4.9 - 5.7 years

Option activity [Table Text Block]

Option activity	Options		Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term in Years	Aggregate Intrinsic Value
Outstanding at January 31, 2014	776			$11.69	6.1		$3,859
Granted	97		12.41
Exercised	(38	)	7.20			155
Expired or forfeited	(53	)	19.91
Outstanding end of period	782		11.45		6.2	1,687
Exercisable end of period	530			$12.09	4.9		$1,314

Unvested option activity [Table Text Block]

Unvested option activity	Unvested Options Outstanding		Weighted Average Exercise Price Per Share		Aggregate Intrinsic Value
Outstanding at January 31, 2014	263			$8.31		$1,633
Granted	97		12.41
Vested	(100	)
Expired or forfeited	(8	)	8.30
Outstanding end of period	252			$10.08		$373

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	Shares Outstanding		Weighted Average Exercise Price Per Share		Aggregate Intrinsic Value
Outstanding at January 31, 2014	29			$14.52		$419
Granted	84		12.41
Issued	(80	)
Outstanding end of period	33			$11.01		$368