| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | PARADIGM CAPITAL MANAGEMENT | 2,724,200 | 5.69 | $6,183,934 | 30-Sep-09 | | ROYCE & ASSOCIATES, LLC | 1,623,862 | 3.39 | $3,686,166 | 30-Sep-09 | | COLUMBIA PARTNERS, L.L.C, INVESTMENT MANAGEMENT | 528,657 | 1.10 | $1,200,051 | 30-Sep-09 | | DRILL,CRAIG,A.,DBA CRAIG DRILL CAP CORP &C DRILL CAP LLC | 507,900 | 1.06 | $1,152,933 | 30-Sep-09 | | WASATCH ADVISORS INC | 400,000 | .84 | $908,000 | 30-Sep-09 | | NEEDHAM INVESTMENT MANAGEMENT, L.L.C. | 325,000 | .68 | $737,750 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 283,200 | .59 | $642,864 | 30-Sep-09 | | CALPERS (CALIFORNIA-PUBLIC EMPLOYEES RETIREMENT SYSTEM) | 275,300 | .58 | $624,931 | 30-Sep-09 | | Crown Capital Management | 150,000 | .31 | $340,500 | 30-Sep-09 | | GRT CAPITAL PARTNERS, LLC | 108,278 | .23 | $245,791 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | ROYCE MICRO-CAP FUND | 755,539 | 1.58 | $1,178,640 | 30-Jun-09 | | ROYCE CAPITAL FUND-MICRO-CAP PORTFOLIO | 546,223 | 1.14 | $1,239,926 | 30-Sep-09 | | WASATCH MICRO-CAP VALUE FUND | 400,000 | .84 | $908,000 | 30-Sep-09 | | NEEDHAM AGGRESSIVE GROWTH FUND | 150,000 | .31 | $340,500 | 30-Sep-09 | | NEEDHAM GROWTH FUND | 100,000 | .21 | $227,000 | 30-Sep-09 | | NEEDHAM SMALL CAP GROWTH FUND | 75,000 | .16 | $170,250 | 30-Sep-09 | | ISHARES Russell Micro Cap (TM) Index Fund | 72,905 | .15 | $161,120 | 31-Oct-09 | | SPARTAN EXTENDED MARKET INDEX FUND | 35,403 | .07 | $78,240 | 31-Oct-09 | | FEDERATED KAUFMANN SMALL CAP FUND | 28,500 | .06 | $43,035 | 31-Jul-09 | | Advanced Series Tr-AST/Federated Aggressive Growth Port | 8,810 | .02 | $13,743 | 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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