XML 63 R50.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Lease Commitments (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 29, 2017 | Dec. 30, 2016 | Jan. 01, 2016
Leases Operating [Abstract] |  |  |
Rent expense, net of subleases | $ 2.4 | $ 2.3 | $ 2.2

X
- References No definition available. + Details
Name: | us-gaap_LeasesOperatingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 + Details
Name: | us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration