Where do I a mail my state taxes to and also how do I track that they have actually been received and filed?

Hi, I am not able to e-file my taxes for some reason so I am having to mail them out. The instructions that print out with the taxes do not specify where I should be mailing my state taxes. Can you please let me know where I mail Idaho taxes to? 

Also, aside from me sending these packages certified, is there a way to track that the IRS and the state of Idaho have actually received my taxes?