Idaho Code § 19-3909
Before the commencement of a trial in any of the courts mentioned in this chapter, either party may, upon good cause shown, have a reasonable postponement thereof.
[(19-3909) 1874, p. 363, sec. 602; R.S., R.C., & C.L., sec. 8287; C.S., sec. 9235; I.C.A., sec. 19-4009.]