Stockholders' Equity (Details) - Shedule of performance stock units activity - Executive Officer [Member] - Performance Shares [Member] - USD ($) $ in Thousands		12 Months Ended
Jan. 03, 2019	Jul. 31, 2018
Stockholders' Equity (Details) - Shedule of performance stock units activity [Line Items]
Total Grant	80,500	32,000
Fair Market Value At Grant Date	$ 225	$ 141

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration