That gives you kind of an overview of where we are and Tom if you want to take it back we can answer some questions that people may have.
C. Thomas McMillen - HSCC - Chairman & CEO
Maybe just address the synergy with Polimatrix for a minute and then we'll take questions.
Chris Leichtweis - HSCC - President
Sure. Well Polimatrix is a nuclear detection device company that was recently awarded a contract in the state of Illinois. And what the Safety & Ecology Holdings can assist in delivering is not only services associated with that technology, but also deployment, and it also touches, and we can introduce it to our countrywide and also in the UK customer base. So that Polimatrix synergy is one I think we can both capitalize on on both sides of -- from both companies.
C. Thomas McMillen - HSCC - Chairman & CEO
Thank you. Why don't we take questions? Moderator.
Operator
Thank you. [Operator Instructions]. Thank you. Our first question comes from the line of Philip Morrissy (ph) with Morgan Keegan. Please proceed with your question.
Philip Morrissy - Morgan Keegan
Hi Tom how are you and congratulations. I think this looks like a terrific acquisition and certainly puts you moving in the right direction. One thing I am just a little bit curious about if you can just touch a little bit on the overall capital structure changes? The Cornell Capital element you mentioned something about Yorkville, which I believe, is a subsidiary of Cornell Capital but I am just trying to get my arms around how that will all work there?
C. Thomas McMillen - HSCC - Chairman and CEO
Yorkville is now--Cornell is the predecessor for Yorkville. When I was referring to Yorkville, I was referring to Cornell.
Philip Morrissy - Morgan Keegan
Okay.
C. Thomas McMillen - HSCC - Chairman and CEO
What we did is we took approximately $10.5 million of convertible debentures. They were variable convertible debentures and we replaced that with $3.8 million of preferred that converts at 3 cents and $6.75 million of senior notes that have no conversion features with a 13 percent coupon and accruing through 2010. That in itself was I think a major major improvement on our balance sheet. We took some of the debentures and replaced them for equity and we took the convertible debt and replaced it for fixed notes that mature in 2010.
Philip Morrissy - Morgan Keegan
Let me just stop you for a second. On this preferred then which converts it's a convertible preferred-- the 3.8 million at 3 cents?
C. Thomas McMillen - HSCC - Chairman and CEO
That's correct.
Philip Morrissy - Morgan Keegan
Okay and it is there any sort of time frame on that they can convert it after 2 years or is it immediately convertible?