Idaho Code § 33-2409: criminal penalties.

(1) Any person who intentionally violates the provisions of this chapter is guilty of a misdemeanor punishable by imprisonment in the county jail not exceeding six (6) months, or by a fine not exceeding five thousand dollars ($5,000), or both.

(2) Any person who intentionally fails to register according to the provisions of this chapter is guilty of a felony punishable by imprisonment in the county jail not exceeding twelve (12) months, or by a fine not exceeding ten thousand dollars ($10,000), or both.