Property, Plant and Equipment (Tables)

3 Months Ended

Apr. 30, 2013

Property, Plant and Equipment [Abstract]

Summary of property, plant and equipment

	April 30, 2013		January 31, 2013
Land and improvements	$	471,000	$	471,000
Building and improvements		2,618,000		2,587,000
Furniture, machinery and equipment		3,272,000		3,060,000
Trucks and other vehicles		1,643,000		1,803,000
Construction project costs of variable interest entities		3,248,000		5,309,000
		11,252,000		13,230,000
Less – accumulated depreciation		3,853,000		3,762,000
Property, plant and equipment, net	$	7,399,000	$	9,468,000