Brazil Transaction (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2016	Oct. 31, 2015
Transactions [Line Items]
Net sales from discontinuing operations				$ 869
Gross profit from discontinuing operations				164
Operating expenses from discontinuing operations				763
Operating loss from discontinuing operations				(599)
Interest expense from discontinuing operations				256
Other expense from discontinuing operations				398
Loss from operation of discontinuing operations before income tax				(1,253)
Non-cash reclassification of Other Comprehensive Income to Statement of Operations (no impact on stockholders’ equity)				(1,286)
Loss from disposal of discontinued operations				(515)
Loss before taxes for discontinued operations	$ 0	$ 0	$ 0	(3,054)
Income tax benefit from discontinued operations	$ 0	$ 0	$ 0	(569)
Net loss from discontinued operations				$ (2,485)