Inventories

3 Months Ended

Apr. 30, 2012

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

4. Inventories

Inventories consist of the following:

	April 30, 2012		January 31, 2012
Raw materials	$	19,100,595	$	21,213,423
Work-in-process		1,879,908		1,790,510
Finished goods		21,338,171		22,664,422
	$	42,318,674	$	45,668,355

Inventories include freight-in, materials, labor and overhead costs and are stated at the lower of cost (on a first-in, first-out basis) or market.