Yup, that's them indeed. The confusion arose because you mentioned a Brasilia. According to the CRS, they are operating a Bandeirante (aircraft code: "EMB" in contrast to "EM2" for the Brasilia) twice daily on BFS-IOM-BLK.
Not sure if the ICAO-code BNW has been offically allocated to them already. In the CRS, they show as "Eastwind Capital W9" which suggests that there is some kind of designator chaos.