How to repair bottom diaphragm connection of Eminent Technology LFT8 planar speakers

The bottom of the board connecting the wire block came off the printed circuit of the mid range panel diaphragm.  Does anyone know how to re-connect or repair this?  Can it be soldered back on?  I would like to avoid having to replace the entire mid-range panel if possible just for this.

I'm not sure how to attach pictures to this post to show it, but I can send pictures to your email if needed.