Westamerica Bancorporation operates as the holding company for Westamerica Bank, which provides banking services to individuals and corporate customers in northern and central California. It primarily engages in generating deposits and originating loans. The bank’s deposit products include money market savings, certificates of deposit, noninterest bearing demand deposits, and money market checking deposits. Its lending activities comprise commercial, real estate construction, consumer, and real estate residential loans. As of December 31, 2007, the bank operated approximately 87 offices in 21 counties comprising 13 in Fresno County; 11 each in Marin and Sonoma Counties; 7 in Napa...