The typical asking rate per listing is in the $20's per square foot per year. The Idaho Falls submarket is going through a a rise in rates. In the last 3 months, the median rate increased $5 per sqft per year. That's a 25% rise in rent.
In the last 90 days, 62 listings have been posted online, so you'll want to check back regularly for new listings. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,750 sqft. Most buildings in this market are close to 2 floors. Most buildings in this region were built in 1987 and are Class B.