Note 5 - Customer and Supplier Concentrations (Detail) - Customers Comprising 10 Percent or More of the Company’s Gross Accounts Receivable (USD $) In Thousands, unless otherwise specified	Apr. 30, 2013	Jan. 31, 2013
Total gross accounts receivable due from customers (in Dollars)	$ 1,573	$ 1,307
Total gross accounts receivable due from customers	100.00%	100.00%
Balance (in Dollars)	1,532	1,291
Percentage	97.00%	99.00%
Lenovo Information Products Co Ltd [Member]
Balance (in Dollars)	$ 1,532	$ 1,291
Percentage	97.00%	99.00%

Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 3

-Subparagraph a, b

-Article 5

Name:	us-gaap_AccountsReceivableGrossCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant