ST. LOUIS — idX Corp., a manufacturer of retail fixtures and custom millwork products, on Oct. 29 announced that it plans to invest $3 million to expand and add new equipment at its operations at River Ridge Commerce Center in Jeffersonville, IN, according to Business First of Louisville. The expansion is expected to lead to the creation of up to 150 jobs — production workers, engineers and program managers — by 2011, idX said in a news release. The company currently has 140 employees in Jeffersonville. Read more.