Mr. Leonard, 70, has been a member of our board of directors since June 2005, is the chairman of our audit committee and is one of the board of directors' designated "audit committee financial experts." Mr. Leonard was a director of Dynasil Corporation of America (Dynasil), a company that develops and manufactures detection and analysis technology, precision instruments and optical components for homeland security, medical and industrial markets, from 2016 to 2024, serving as its chief financial officer and chief accounting officer from 2013 to 2016 and chair of its audit committee from 2019 to 2024. From 2008 to 2012, Mr. Leonard was the senior vice president-finance, treasurer and chief financial officer of Pennichuck Corporation, a publicly-traded water utility holding company. From 2006 to 2008, he was a vice president of CRA International, a consulting firm, where he specialized in forensic accounting. He was previously a managing director specializing in forensic accounting and dispute resolution at Huron Consulting Group LLC, a publicly-traded management consulting firm, from 2002 to 2006. Previously, Mr. Leonard was a senior partner at Arthur Andersen LLP, an independent public accounting firm, from 1987 through 2002 and served as partner-in-charge of its New England assurance and business advisory practice. Mr. Leonard is a certified public accountant. We believe Mr. Leonard s qualifications to serve on our board of directors include his expertise in finance and accounting and experience as a public company chief financial officer.