| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | MARXE, AUSTIN W. & GREENHOUSE, DAVID M. | 961,672 | 9.60 | $730,870 | 30-Sep-09 | | PERRITT CAPITAL MANAGEMENT, INC. | 267,400 | 2.67 | $203,224 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 240,742 | 2.40 | $182,963 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 160,383 | 1.60 | $121,891 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 140,600 | 1.40 | $106,856 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 59,752 | .60 | $45,411 | 30-Sep-09 | | CALPERS (CALIFORNIA-PUBLIC EMPLOYEES RETIREMENT SYSTEM) | 30,900 | .31 | $19,776 | 30-Jun-09 | | KOPP INVESTMENT ADVISORS. INC. | 25,000 | .25 | $19,000 | 30-Sep-09 | | NORTHERN TRUST CORPORATION | 22,989 | .23 | $14,712 | 30-Jun-09 | | J. P. Marvel Investment Advisors LLC | 19,000 | .19 | $14,440 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | PERRITT EMERGING OPPORTUNITIES FUND | 246,500 | 2.46 | $187,340 | 30-Sep-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 160,383 | 1.60 | $102,645 | 30-Jun-09 | | DFA U.S. MICRO CAP SERIES | 83,600 | .83 | $28,424 | 30-Apr-09 | | DFA U.S. SMALL CAP SERIES | 23,489 | .23 | $7,986 | 30-Apr-09 | | DFA U.S. SMALL CAP VALUE SERIES | 18,387 | .18 | $6,251 | 30-Apr-09 | | Principal Small Cap Value Fd II | 4,982 | .05 | $3,188 | 30-Jun-09 | | DFA U.S. Core Equity 2 Portfolio | 4,972 | .05 | $1,690 | 30-Apr-09 | | SPARTAN EXTENDED MARKET INDEX FUND | 3,462 | .03 | $2,631 | 30-Sep-09 | | DFA U.S. Core Equity 1 Portfolio | 3,000 | .03 | $1,020 | 30-Apr-09 | | DFA TAX MANAGED U.S. MARKETWIDE VALUE SERIES | 1,586 | .02 | $539 | 30-Apr-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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