Criminal Law Questions? Ask a Criminal Lawyer.
because your misdemeanor is a DV one, you are precluded by law of owing or possessing a gun. you will need to apply for a full pardon from the governor of Idaho to have your rights restored - then you will need to have the matter expunged
use this link for that application and more information
also this link for the guidelines - you will need to be 5 years from the end of your sentence and no other crimes pending - see Rule 550
withheld until when, what? probation? the matter would need to be totally dismissed with no conviction of any kind showing on your record - adjudication withheld will still appear on your record