Each small employer, as that term is defined in N.H. Rev. Stat. § 420-G:2, XVI, which employs 2 or more employees in the state of New Hampshire and which does not offer employer-sponsored health insurance to all of its employees, may establish and maintain a health coverage premium only cafeteria plan that satisfies the requirements of 26 U.S.C. § 125, and which is specifically established for the purpose of allowing employees who are not eligible for employer-sponsored coverage to purchase health coverage as defined in N.H. Rev. Stat. § 420-G:2, IX in the small group market. An employee who works over 15 hours per week and who is not eligible for an employer-sponsored plan may elect to purchase small group health coverage on an individual basis through a payroll deduction. The employer shall not be required to pay for or otherwise contribute to the cost of any health insurance purchased through the cafeteria plan.