BUSINESS SEGMENTS, MAJOR CUSTOMERS AND SIGNIFICANT GROUP CONCENTRATIONS OF CREDIT RISK (Details 3) - USD ($) $ in Thousands	12 Months Ended
Dec. 30, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenues	$ 50,779	$ 71,739
Accounts receivable	12,804	13,680
Customer A [Member]
Segment Reporting Information [Line Items]
Accounts receivable	3,521	3,317
Customer B [Member]
Segment Reporting Information [Line Items]
Accounts receivable	452	1,100
Customer C [Member]
Segment Reporting Information [Line Items]
Accounts receivable	548	779
North America [Member] \| Customer B [Member]
Segment Reporting Information [Line Items]
Revenues	6,704	11,933
EMEA [Member] \| Customer A [Member]
Segment Reporting Information [Line Items]
Revenues	13,963	16,022
EMEA [Member] \| Customer C [Member]
Segment Reporting Information [Line Items]
Revenues	$ 4,082	$ 8,345

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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