Pursuant to Idaho Code §18-901daho Code §18-903 battery is the intentional touching of another against their will. A common misconception is that this touching must cause harm of some sort - this is not the case! You can be charged and convicted of Battery by simply poking or pinching another. As ridiculous as this may seem, I have seen charges of Battery stemming from a slight push, kicking sand, and spraying water.
Misdemeanor Battery is s punishable by up to a fine of $1000 and 6 months in the county jail (See: Idaho Code §18-904). If the victim of a battery is pregnant, and this fact is known to the batterer, the punishment is enhanced - fine up to one thousand dollars ($1,000), or imprisonment in the county jail for up to one (1) year, or both.