Note 7 - Segment Reporting - Financial Information by Reportable Segment, Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 29, 2018	Sep. 29, 2017
Total assets:
Assets	$ 24,920	$ 26,263
UNITED STATES \| Continuing Operations [Member]
Total assets:
Assets	14,464	13,239
CANADA \| Continuing Operations [Member]
Total assets:
Assets	1,524	2,349
North America [Member] \| Continuing Operations [Member]
Total assets:
Assets	15,988	15,588
UNITED KINGDOM \| Continuing Operations [Member]
Total assets:
Assets	6,410	6,944
SWEDEN \| Continuing Operations [Member]
Total assets:
Assets	1,262	2,169
JAPAN \| Continuing Operations [Member]
Total assets:
Assets	$ 1,260	$ 1,562

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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