IDC Instructors Development Conference 2018 October 11 – 13, 2018. IDC 2018IDC 2018 - BBS1IDC 2018IDC 2018IDC 2018IDC 2018IDC 2018IDC 2018IDC 2018IDC 2018 - BBS1IDC 2018 - BBS1October 2018. Instructors Development Conference. Gracie University - Torrance, CA. Gracie Jiu-Jitsu® Driggs visit to Gracie University Torrance, CA. October 10 – 20, 2018