INVESTMENTS (Details) - Schedule of Financial information For Equity Method Investment - Big River [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
INVESTMENTS (Details) - Schedule of Financial information For Equity Method Investment [Line Items]
Net sales and revenue	$ 212,070	$ 210,974	$ 404,569	$ 394,545
Gross profit	11,582	17,057	19,764	22,928
Income from continuing operations	1,411	12,216	8,618	14,620
Net income	$ 1,411	$ 12,216	$ 8,618	$ 14,620