MIPS: Common stock, $0.001 par value: 250,000,000 shares authorized at September 30, 2011 and June 30, 2011; and 52,740,117 and 52,556,367 shares outstanding at September 30, 2011 and June 30, 2011, respectively, net of 93,446 and 70,269 reacquired shares at September 30, 2011 and June 30, 2011, respectively (in shares)