A small-business owner hoping to sell oil extracted from cannabis plants in Idaho is facing roadblocks from local officials saying such products may be illegal in the state.

Michael Larsen applied for a building permit in Garden City in February. The goal was to sell products containing extract of cannabidiol with little to no THC, marijuana's intoxicating component.

The city attorney denied the application in May, resulting in a monthslong back-and-forth over whether Larsen's products are legal in Idaho.

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A 2015 state attorney general's opinion says oils extracted from cannabis plants are a controlled substance. But it says such products can be considered legal if they contain no THC.

Larsen says his products are free of THC.

The city is asking him to provide a sample for testing, along with assurances from an expert.