They don't have a product. They have an idea. And this idea is probably still years away from even being called a final prototype. Never mind a marketable product for sale.
They're still talking about other entities fitting a "propulsion system" to the craft, and at the same time talking about how some university R&D program will be looking to improve it.....starting by the end of this year.
This thing is a long ways away from becoming a viable product. If it EVER becomes one.
How anyone can be talking about a share buy back is beyond reason. They can barely keep the doors open by using the cash from selling the one product they had that was actually marketable. That $335K cash they got in the sale of LTAS won't be lasting very long.