Significant accounting policies Net loss per common share (Tables)

12 Months Ended

Jan. 31, 2014

Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Basic weighted average number of common shares outstanding	2013		2012
Basic weighted average number of common shares outstanding	7,028		6,922
Dilutive effect of stock options	68		—
Weighted average number of common shares outstanding assuming full dilution	7,096		6,922
Weighted average number of stock options not included in the computation of diluted EPS of common stock because the option exercise prices exceeded the average market prices	201		783
Canceled options during the year	(73	)	(36	)
Stock options with an exercise price below the average stock price	575		186