| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | U.S. BANCORP (MINNESOTA) | 1,338,480 | 6.23 | $9,837,828 | 30-Sep-09 | | PACIFIC GLOBAL INVESTMENT MANAGEMENT CO. | 1,272,250 | 5.93 | $9,351,037 | 30-Sep-09 | | FMR LLC | 1,031,422 | 4.80 | $7,580,951 | 30-Sep-09 | | DISCIPLINED GROWTH INVESTORS, INC. | 976,550 | 4.55 | $7,177,642 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 866,735 | 4.04 | $6,370,502 | 30-Sep-09 | | PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. | 799,173 | 3.72 | $5,873,921 | 30-Sep-09 | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 740,407 | 3.45 | $5,441,991 | 30-Sep-09 | | LORD ABBETT & CO | 719,168 | 3.35 | $5,285,884 | 30-Sep-09 | | Cortina Asset Management, LLC | 615,745 | 2.87 | $4,525,725 | 30-Sep-09 | | ARBOR CAPITAL MANAGEMENT, LLC | 2,322,100 | 10.81 | $17,067,435 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | PACIFIC ADVISORS SMALL CAP FUND | 740,000 | 3.45 | $4,514,000 | 30-Jun-09 | | BLAIR (WILLIAM) MUTUAL FUNDS, INC.-SMALL CAP GROWTH FUND | 647,540 | 3.02 | $4,759,419 | 30-Sep-09 | | FIRST AMERICAN SMALL CAP SELECT FUND | 639,241 | 2.98 | $4,698,421 | 30-Sep-09 | | Powershares Exhg Traded Fd Tr-POWERSHARES WILDERHILL CLEAN E | 636,422 | 2.96 | $5,352,309 | 31-Jul-09 | | AXA Premier VIP Multimanager Small Cap Value Portfolio | 570,000 | 2.65 | $3,477,000 | 30-Jun-09 | | MARSHALL SMALL-CAP GROWTH FUND | 358,600 | 1.67 | $2,305,798 | 31-Oct-09 | | ISHARES RUSSELL 2000 INDEX FD | 313,444 | 1.46 | $2,303,813 | 30-Sep-09 | | VARIABLE INSURANCE PRODUCTS FD III-MID-CAP PORTFOLIO | 306,609 | 1.43 | $2,253,576 | 30-Sep-09 | | HARTFORD SMALLCAP GROWTH HLS SERIES | 237,000 | 1.10 | $1,445,700 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 207,529 | .97 | $1,265,926 | 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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