Meyer Luskin has served as a Director of the Company since February 1990. Since 1958, Mr. Luskin has served as a Director of Scope Industries, which is engaged principally in the business of recycling and processing food waste products into animal feed and has also served as its President, Chief Executive Officer and Chairman since 1961. He currently serves as a Director on the Advisory Board of the UCLA Luskin School of Public Affairs.  Mr. Luskin was formerly Chairman of the Board of the Santa Monica – UCLA Medical Center and Orthopaedic Hospital, Chairman of the Board of the Orthopaedic Institute for Children (previously known as the Los Angeles Orthopaedic Hospital), a Director of the UCLA Foundation, and a Director of the Alliance for College-Ready Public Schools. Mr. Luskin also served as a Director of Myricom, Inc., a computer and network infrastructure company. Mr. Luskin holds a Bachelor of Arts degree from the University of California, Los Angeles and a Masters in Business Administration from Stanford University.

William F. Ballhaus, Jr. has served as a Director of the Company since May 2010. From 2000 to 2007, Dr. Ballhaus, now retired, served as President and then also as Chief Executive Officer of Aerospace Corporation, an organization dedicated to the application of science and technology to the solution of critical issues in the nation's space program. Between 1990 and 2000, Dr. Ballhaus' career included positions within the aerospace industry, including Corporate Vice President, Engineering and Technology for Lockheed Martin Corporation and President, Aero and Naval Systems and President, Civil Space & Communications, both for Martin Marietta. Between 1971 and 1989, Dr. Ballhaus worked for the National Aeronautics and Space Administration (NASA), including as Director of its Ames Research Center. Dr. Ballhaus, who has published more than 40 papers on computational aerodynamics, obtained a Ph.D. in Engineering in 1971 and a Bachelor of Science and Master of Science in mechanical engineering in 1967 and 1968, all from the University of California, Berkeley.

James B. Hawkins has served as a Director of the Company since December 2015. From 2004 through July 2018, Mr. Hawkins was the President, Chief Executive Officer and member of the Board of Directors of Natus Medical Incorporated, a leading manufacturer of medical devices and software and a service provider for the newborn care, neurology, sleep, hearing and balance markets. Prior to joining Natus, Mr. Hawkins was President, Chief Executive Officer, and a Director of Invivo Corporation, a provider of MRI-safe patient monitoring, and Chief Executive Officer and Chief Financial Officer of Sensor Control Corporation. Mr. Hawkins currently serves as a director of Iradimed Corporation. He earned his undergraduate degree in Business Commerce from Santa Clara University and holds a Masters of Business Administration degree in Finance from San Francisco State University.

Gerald Chizever has served as a Director of the Company since October 2016.  Mr. Chizever has been a partner at the law firm of Loeb & Loeb LLP since 2004.  Mr. Chizever's practice includes mergers and acquisitions, corporate finance, public and private securities offerings, general corporate representation and strategic alliances.  Mr. Chizever serves as general corporate counsel for public and private companies, advising them in all matters, including business transactions, corporate governance and compliance with governmental regulations.  He holds a Bachelor of Business Administration degree in accounting and a Juris Doctorate from George Washington University.