| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | GRANAHAN INVESTMENT MANAGEMENT INC. | 837,844 | 4.81 | $5,655,447 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 669,586 | 3.85 | $4,519,705 | 30-Sep-09 | | BANK OF AMERICA CORPORATION | 373,215 | 2.14 | $2,519,201 | 30-Sep-09 | | FIRST WILSHIRE SECURITIES MANAGEMENT INC | 175,316 | 1.01 | $1,183,383 | 30-Sep-09 | | AXA | 172,210 | .99 | $1,162,417 | 30-Sep-09 | | BRIDGEWAY CAPITAL MANAGEMENT, INC. | 170,000 | .98 | $1,147,500 | 30-Sep-09 | | HM Capital Management, LLC. | 165,210 | .95 | $1,115,167 | 30-Sep-09 | | GLOBEFLEX CAPITAL, L.P. | 143,000 | .82 | $965,250 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 140,451 | .81 | $948,044 | 30-Sep-09 | | OHIO-STATE TEACHERS RETIREMENT SYSTEM | 133,200 | .77 | $899,100 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | VANGUARD EXPLORER FUND, INC. | 734,159 | 4.22 | $3,905,725 | 31-Jul-09 | | VANGUARD VARIABLE INSURANCE FUND-SMALL COMPANY GROWTH | 184,536 | 1.06 | $948,515 | 30-Jun-09 | | Columbia Fds Ser Tr I-Columbia Small Cap Core Fd | 177,170 | 1.02 | $910,653 | 30-Jun-09 | | BRIDGEWAY FDS INC-ULTRA SMALL COMPANY MARKET FD | 135,000 | .78 | $693,900 | 30-Jun-09 | | DFA U.S. MICRO CAP SERIES | 121,144 | .70 | $770,475 | 30-Apr-09 | | DFA Tax Managed U.S. Targeted Value Port | 104,900 | .60 | $558,068 | 31-Jul-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 56,099 | .32 | $288,348 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 51,529 | .30 | $347,820 | 30-Sep-09 | | DFA TAX-MANAGED U.S. SMALL CAP PORTFOLIO | 34,483 | .20 | $183,449 | 31-Jul-09 | | EQ Advisors Trust-EQ/AXA Rosenberg Value Long/Short Equity P | 34,015 | .20 | $174,837 | 30-Jun-09 |
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*
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Value shown is computed using the security's price on the report date given.
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