Renovation costs in Idaho run about 98% of the national average. A mid-range kitchen runs ~$24,500, a bathroom ~$11,760, and a full remodel ~$108/sqft.
Labor is the biggest local variable. Price your specific project in the renovation cost calculator, kitchen, bathroom or roof calculators.
Reserve ~15% for surprises, get at least three local quotes, and keep plumbing/structural layouts where possible to control cost.