Idaho Code § 31-807
A board of county commissioners shall have the power and authority to purchase, receive by donation, or lease any real or personal property necessary for the use of the county; preserve, take care of, manage and control the county property, but no purchase of real property must be made unless the value of the same has been previously estimated by a real estate appraiser licensed to appraise real property in the state of Idaho pursuant to the provisions of chapter 41, title 54 , Idaho Code, and no more than the appraised value must be paid therefor. However, if the county assessor determines that the value of the real property is five thousand dollars ($5,000) or less, then the appraisal provided in this section shall not be required.
[(31-807) R.S., sec. 1759; R.C., sec. 1917g, as added by 1913, ch. 143, sec. 2, p. 507; reen. C.L., sec. 1917g; C.S., sec. 3422; I.C.A., sec. 30-707; am. 1999, ch. 215, sec. 1, p. 573.]