Any person who is convicted of violating the felony provisions of section 37-2732(a), Idaho Code, by distributing controlled substances to another person, who is not subject to a fixed minimum term under section 37-2739B, Idaho Code, and who has previously been convicted within the past ten (10) years in a court of the United States, any state or a political subdivision of one or more felony offenses of dealing, selling or trafficking in controlled substances on an occasion or occasions different from the felony violation of section 37-2732(a), Idaho Code, and which offense or offenses were punishable in such court by imprisonment in excess of one (1) year, shall be sentenced to the custody of the state board of correction for a mandatory minimum period of time of not less than three (3) years or for such greater period as the court may impose up to a maximum of life imprisonment. The mandatory minimum period of three (3) years incarceration shall not be reduced and shall run consecutively to any other sentence imposed by the court.