PROPERTY, PLANT AND EQUIPMENT - Summary of Property, Plant and Equipment (Details) - USD ($)	Jul. 31, 2015	Jan. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 9,773,000	$ 10,914,000
Less - accumulated depreciation	4,584,000	4,396,000
Property, plant and equipment, net	5,189,000	6,518,000
Variable Interest Entity [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross		2,658,000
Land and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	473,000	473,000
Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,691,000	2,800,000
Furniture, Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,038,000	3,546,000
Trucks and Other Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,571,000	1,437,000
Construction in Progress [Member] | Variable Interest Entity [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 2,658,000