For taxable years commencing on or after January 1, 2004, premiums paid during the taxable year, by a taxpayer for long-term care insurance as that term is defined in section 41-4603, Idaho Code, which long-term care insurance is to be for the benefit of the taxpayer, a dependent of the taxpayer or an employee of the taxpayer, may be deducted from taxable income to the extent that the premium is not otherwise deducted or accounted for by the taxpayer for Idaho income tax purposes.