| Component: (Network and Table) | |
|---|---|
| Network | 2407403 - Disclosure - BUSINESS SEGMENTS, MAJOR CUSTOMERS AND SIGNIFICANT GROUP CONCENTRATIONS OF CREDIT RISK (Details 1) (http://www.cartesian.com/role/BusinessSegmentsMajorCustomersAndSignificantGroupConcentrationsOfCreditRiskDetails1) |
| Table | Schedule of Segment Reporting Information, by Segment [Table] |
| Reporting Entity [Axis] | 0001094814 (http://www.sec.gov/CIK) |
| Segment Reporting Information [Line Items] | Period [Axis] | |||||||
|---|---|---|---|---|---|---|---|---|
2016-01-03 - 2016-12-31 | 2015-01-04 - 2016-01-02 | |||||||
| Geographical [Axis] | Geographical [Axis] | |||||||
| United States [Member] | United Kingdom [Member] | Other [Member] | Geographical [Domain] | United States [Member] | United Kingdom [Member] | Other [Member] | Geographical [Domain] | |
Revenues | 71,739,000 | 78,344,000 | ||||||