0001103021 2021-11-03 2021-11-03 0001103021 2021-07-01 2021-09-30 0001103021 false 2021-11-03 8-K BioDelivery Sciences International, Inc. DE 001-31361 35-2089858 4131 ParkLake Ave., Suite 225 Raleigh, NC 27612 919 582-9050 false false false false Common stock, par value $0.001 BDSI NASDAQ false