Significant accounting policies Long-lived assets (Tables)

12 Months Ended

Jan. 31, 2014

Long lived assets [Abstract]

Property, Plant and Equipment [Table Text Block]

	2013	2012
Land, buildings and improvements	$36,535	$36,572
Machinery and equipment	50,793	49,919
Furniture, office equipment and computer systems	9,723	11,065
Transportation equipment	206	189
Subtotal	97,257	97,745
Less accumulated depreciation and amortization	54,716	52,163
Property, plant and equipment, net	$42,541	$45,582