It really depends. I have worked with multi million dollar deals in the past. A $1M investment is a good find for a start-up however you will want to make sure you fully understand the terms. You will also want to fully understand if this is to be a 100% debt instrument, equity, partial equity, or a convertible note. Overseas investors are not necessarily bad, but you should be on guard if they ask you to pay funds upfront without any escrow protections. I'd be happy to discuss your situation in more detail on a consult.