Investments (Details) - Schedule of Financial information For Equity Method Investment - USD ($) $ in Thousands		3 Months Ended
		Apr. 30, 2016	Apr. 30, 2015
Patriot [Member]
Investments (Details) - Schedule of Financial information For Equity Method Investment [Line Items]
Net sales and revenue	[1]		$ 63,239
Gross profit	[1]		3,818
Income from continuing operations	[1]		1,779
Net income	[1]		1,779
Big River [Member]
Investments (Details) - Schedule of Financial information For Equity Method Investment [Line Items]
Net sales and revenue		$ 183,571	184,806
Gross profit		5,870	10,805
Income from continuing operations		2,404	10,377
Net income		$ 2,404	$ 10,377

[1] The Company's equity interest in Patriot was sold June 1, 2015.