Idaho is an "employment-as-will" state, meaning (except for a very few limited situations) an employee can be terminated for any reason or none at all. Whether there will be eligibility for unemployment insurance benefits is a completely separate issue, as is your entitlement to pay for training. A complaint to the Idaho Department of Labor would be appropriate in that regard, and your application for unemployment benefits would be filed at the same office.
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This answer is offered as a public service for general information only and may not be relied upon as legal advice.