Significant accounting policies Net loss per common share (Tables)

12 Months Ended

Jan. 31, 2016

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	2015		2014
Basic weighted average number of common shares outstanding	7,280		7,251
Dilutive effect of stock options, deferred stock and restricted stock units	91		73
Weighted average number of common shares outstanding assuming full dilution	7,371		7,324
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	710		261
Canceled options during the year	(77	)	(64	)
Stock options with an exercise price below the average stock price	10		503