Retirement plans Amounts recognized in other comprehensive income (Tables)

12 Months Ended

Jan. 31, 2017

Defined Benefit Plan Disclosure [Line Items]

Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

Amounts recognized in other comprehensive income
Actuarial loss on obligation	$493	$1,115
Actual loss (gain) on plan assets	338	(294	)
Total in other comprehensive income	$831	$821
Other comprehensive income is also affected by the tax effect of the valuation allowance recorded on the domestic deferred tax assets.