CEDAR RAPIDS — Lenny Sims made a point of being there Tuesday when the city and a mix of community partners launched a microloan program designed to turn workable ideas and thin wallets into business success stories.The microloan program, which will provide loans of between $1,000 and $10,000, is a new part of the city’s existing Business Assistance Revolving Loan Fund program, which has provided loans of up to $50,000 to businesses since December 2013.