PROPERTY AND EQUIPMENT, NET (Details) (USD $)	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Property, Plant and Equipment, Gross	$ 26,071,550	$ 25,882,096
Less accumulated depreciation	(12,971,202)	(12,080,730)
Construction-in-progress	989,639	113,460
Property, Plant and Equipment, Net, Total	14,089,987	13,914,826
Machinery and Equipment [Member]
Property, Plant and Equipment, Gross	10,993,470	10,958,054
Machinery and Equipment [Member] | Minimum [Member]
Useful Life in Years	3 years
Machinery and Equipment [Member] | Maximum [Member]
Useful Life in Years	10 years
Furniture and Fixtures [Member]
Property, Plant and Equipment, Gross	669,511	670,150
Furniture and Fixtures [Member] | Minimum [Member]
Useful Life in Years	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Useful Life in Years	10 years
Leasehold Improvements [Member]
Property, Plant and Equipment, Gross	1,896,338	1,725,746
Property, Plant and Equipment, Estimated Useful Lives	Lease term
Land and Building China [Member]
Property, Plant and Equipment, Gross	2,412,115	2,412,115
Land and Building China [Member] | Minimum [Member]
Useful Life in Years	20 years
Land and Building China [Member] | Maximum [Member]
Useful Life in Years	30 years
Land and Building Canada [Member]
Property, Plant and Equipment, Gross	2,444,798	2,444,063
Useful Life in Years	30 years
Land and Building Usa [Member]
Property, Plant and Equipment, Gross	6,017,082	5,798,986
Useful Life in Years	30 years
Land and Building Brazil [Member]
Property, Plant and Equipment, Gross	$ 1,638,236	$ 1,872,982
Useful Life in Years	5 years