| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Riley Investment Management LLC | 2,558,266 | 7.35 | $1,637,290 | 30-Sep-09 | | POTOMAC CAPITAL MANAGEMENT, INC. | 2,228,525 | 6.40 | $1,426,256 | 30-Sep-09 | | PERRITT CAPITAL MANAGEMENT, INC. | 1,722,200 | 4.95 | $1,102,208 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 664,320 | 1.91 | $425,164 | 30-Sep-09 | | PNC FINANCIAL SERVICES GROUP, INC. | 629,300 | 1.81 | $402,752 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 504,161 | 1.45 | $322,663 | 30-Sep-09 | | CALPERS (CALIFORNIA-PUBLIC EMPLOYEES RETIREMENT SYSTEM) | 267,200 | .77 | $98,864 | 30-Jun-09 | | RENAISSANCE TECHNOLOGIES, LLC | 228,900 | .66 | $146,496 | 30-Sep-09 | | PROVIDENT ADVISORS LLC | 201,733 | .58 | $129,109 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 127,816 | .37 | $81,802 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | PERRITT MICROCAP OPPORTUNITIES FUND | 1,316,200 | 3.78 | $842,368 | 30-Sep-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 347,479 | 1.00 | $128,567 | 30-Jun-09 | | PERRITT EMERGING OPPORTUNITIES FUND | 311,000 | .89 | $199,040 | 30-Sep-09 | | DFA U.S. SMALL CAP SERIES | 224,773 | .65 | $74,175 | 30-Apr-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 126,767 | .36 | $46,903 | 30-Jun-09 | | DFA U.S. MICRO CAP SERIES | 107,667 | .31 | $35,530 | 30-Apr-09 | | DFA Tax Managed U.S. Targeted Value Port | 71,997 | .21 | $23,759 | 31-Jul-09 | | DFA U.S. Targeted Value Portfolio | 39,602 | .11 | $13,068 | 30-Apr-09 | | DFA TAX-MANAGED U.S. SMALL CAP PORTFOLIO | 32,005 | .09 | $10,561 | 31-Jul-09 | | Principal Small Cap Value Fd II | 28,120 | .08 | $10,404 | 30-Jun-09 |
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Value shown is computed using the security's price on the report date given.
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