In Idaho you take a written test at the DMV and get a "Learner's Permit" ($15.00 for the permit, and $3.00 for the test) that allows you to ride by yourself, during the day, and no interstate/freeway driving. Then you can take a skills test with a certified instructor for $10.00, or you can do the Stars Course, which is $105. I did the Stars Course, just for the $40 per year insurance break. Easy class if you paid attention. Then to add the endorsement to your license is another $15.00.
I had to look that all up, been a few years since I did it.
A gentleman and his wife were in my class, he had been riding without an endorsement for 40 years, and couldn't pass the $10 skills test due to too many bad habits. His wife ended up passing the class, and he failed. She had never ridden her own, only on the back of his.