Note 7 - Customer and Supplier Concentrations (Detail) (USD $)	3 Months Ended		9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2012	Oct. 31, 2012 Pillsbury Winthrop Shaw Pittman LLP [Member]	Oct. 31, 2012 Flex and Zhengge [Member]	Jan. 31, 2012 Flex and Zhengge [Member]
Decrease in Cost of Revenue Due to Settlement Agreement (in Dollars)			$ 1.4
Legal Fees (in Dollars)			100,000	300,000
Suppliers Accounted for as Percentage of Aggregate Product Cost	76.00%	41.00%
Customer and Supplier Concentrations Uninvoiced Material and Services (in Dollars)					0.8	0.3
Accounts Payable and Accrued Liabilities, Current (in Dollars)					$ 0.9	$ 0.6