For example, Wikipedia: "Typical examples include: convenience stores, other small shops (such as a bakery or delicatessen), hairdressers, tradesmen, lawyers, accountants, restaurants, guest houses, photographers, small-scale manufacturing, and online businesses, such as web design and programming, etc."

If you truly believe that a corner hardware store is not a small business, please go ahead and tell that to the store. See how much they laugh at you.