Retirement plans Components of net periodic benefit cost (Tables)

12 Months Ended

Jan. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

Components of net periodic benefit cost	2014		2013
Service cost		$—	$78
Interest cost	299		293
Expected return on plan assets	(494)		(483)
Amortization of prior service cost	—		21
Recognized actuarial loss	69		105
Curtailment cost	—		252
Net periodic benefit (income) cost	($126)		$266