Note 8 - Inventory (Detail) - Inventory, Net of Reserves (USD $) In Thousands, unless otherwise specified	Oct. 31, 2012	Jan. 31, 2012
Raw materials	$ 825	$ 1,002
Finished goods	394	129
	$ 1,219	$ 1,131	[1]

[1] Derived from the audited consolidated financial statements as of January 31, 2012.