| Component: (Network and Table) | |
|---|---|
| Network | 2401408 - Disclosure - Description of Business and Summary of Significant Accounting Policies (Long-lived assets by geographic location) (Details) (http://www.maxwell.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLongLivedAssetsByGeographicLocationDetails) |
| Table | Schedule of Revenues from External Customers and Long-Lived Assets [Table] |
| Reporting Entity [Axis] | 0000319815 (http://www.sec.gov/CIK) |
| Long-Lived Assets [Line Items] | Period [Axis] | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2016-12-31 | 2015-12-31 | 2014-12-31 | ||||||||||
| Geographical [Axis] | Geographical [Axis] | Geographical [Axis] | ||||||||||
| United States | China | Switzerland | Geographical [Domain] | United States | China | Switzerland | Geographical [Domain] | United States | China | Switzerland | Geographical [Domain] | |
Total | ||||||||||||