We report on the development of a detector concept for the planned Electron-Ion Collider, TOPSiDE. The concept takes advantage of recently established, novel technologies for colliding beam detectors, such as imaging calorimetry and Ultra-Fast Silicon Detectors. The aim of the concept is to measure and identify each particle produced in ep/eA collisions individually. This is achieved through the use of a precision silicon tracker together with a particle-identifying, imaging calorimeter.
We will briefly review the concept, followed by a description of the detector R&D being pursued to realize TOPSiDE.