Question-and-Answer Session
Operator
(Operator Instructions). And your first question comes from the line of Steve Levenson of Stifel Nicolaus. Please proceed.
Steve Levenson - Stifel Nicolaus
Thanks, good afternoon. And thanks Anthony and Ken for all the disclosure and all the detailed information. A few questions, one, little housekeeping one, the Letters of Credit as established as performance guarantees for international customers, or are those for purchases of material?
Ken Galaznik
That's for, it's the payment terms related to our international customers, Steve, where we receive a deposit we are required to put up an LC to secure their deposit.
Steve Levenson - Stifel Nicolaus
Okay. Thank you. On the Z Portal, I guess that news from San Isidro came in the current quarter. Was that enough that you could recognize some of the revenue on the Z Portals that have been out there in the quarter you just reported or is that something that's still to come?
Ken Galaznik
Some of those did come through in the current quarter.
Steve Levenson - Stifel Nicolaus
Okay. So it was, it's not part of the revenue in the quarter you've just reported?
Ken Galaznik
Yes, that one is.
Steve Levenson - Stifel Nicolaus
Okay. And I guess there's at least one more out there and they talked about installing a second one at San Isidro. Can you give us an update on how that goes?
Anthony Fabiano
Well, Steve, Anthony here, I can't really tell you what the forecast is for the product, but like I mentioned in my update the customer is very, very, satisfied with the product. We are working very, very closely with them to ensure that all possible scenarios to out fox the equipment cannot occur and we are working with them in a very methodical and patient way to ensure that we have the optimum product and I think that it will be a very successful product for us.
Steve Levenson - Stifel Nicolaus
Hope so, thanks. And the new products and the increase in R&D, do you feel you've got all the people in place now that you need and/or the new products going to be extensions using Z Backscatter technology or is there something new that your working on?
Anthony Fabiano
Very interesting question. Good question. In answer to the first part it's yes, we do have the people in place to do the job and the support of outside assistance in the way of companies and other technical resources. As far as the products moving forward, the way we really move is to find application where our Z Backscatter technology delivers value where competing technologies cannot. So we continue to develop Z Backscatter technology in a more sophisticated way that will tackle new markets.
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