| Component: (Network and Table) | |
|---|---|
| Network | 000290 - Disclosure - Note 12 - Geographic Information (Tables) (http://www.es.com/20161231/role/idr_DisclosureNote12GeographicInformationTables) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000276283 (http://www.sec.gov/CIK) |
| Tables/Schedules | Period [Axis] | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2016-01-01 - 2016-12-31 | ||||||||||||||||||||||
Tables/Schedules | ||||||||||||||||||||||
Schedule of Sales by Geographic Location | The table below presents sales by geographic location:
|