Note 14 - Segment and Geographical Information - Long-Lived Assets by Geographic Region (Details) - USD ($) $ in Thousands	Jan. 28, 2017	Jan. 30, 2016
Long-lived assets	$ 18,523	$ 14,086
UNITED STATES
Long-lived assets	11,923	5,885
SINGAPORE
Long-lived assets	3,917	5,388
All Other Countries [Member]
Long-lived assets	$ 2,683	$ 2,813

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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