Note 5 - Capitalized Software Costs - Capitalized Software Costs and Accumulated Amortization (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Feb. 01, 2018	Jan. 31, 2018
Capitalized software development costs	$ 1,480		$ 1,516
Less accumulated amortization	(430)		(526)
Capitalized software costs, net	$ 1,050	$ 990	$ 990

For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

Name:	us-gaap_CapitalizedComputerSoftwareAccumulatedAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant