On average, listings lease in the $10's per square foot per year. The Idaho submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 6% increase in rent.
In the last 90 days, 524 listings have been listed, so you'll want to check back regularly for new listings. About 2% of the available leases in the Idaho are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,700 sqft. Most properties in this area are approximately 1 stories. Most buildings in this region were built in 1986 and are Class A.