| AWM Investment Company, Inc. | 6,539,988 | $7,520,986 | 1.02% |
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| PERKINS CAPITAL MANAGEMENT INC | 836,000 | $961 | 0.91% |
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| AEGIS FINANCIAL CORP | 997,006 | $1,146,557 | 0.89% |
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| Palogic Value Management, L.P. | 1,499,970 | $1,724,966 | 0.84% |
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| Portolan Capital Management | 3,105,407 | $3,571,218 | 0.34% |
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| Potomac Capital Management, Inc. | 222,891 | $256,325 | 0.27% |
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| NEEDHAM INVESTMENT MANAGEMENT LLC | 910,000 | $1,046,501 | 0.18% |
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| Kovack Advisors, Inc. | 932,100 | $1,071,915 | 0.15% |
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| Manatuck Hill Partners, LLC | 250,000 | $287,500 | 0.15% |
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| OPTIONS SOLUTIONS, LLC | 36,000 | $41,400 | 0.05% |
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| Worth Venture Partners, LLC | 23,700 | $27,255 | 0.01% |
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| KEMPNER CAPITAL MANAGEMENT INC. | 15,000 | $17,000 | 0.01% |
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| ROYCE & ASSOCIATES LP | 791,248 | $909,935 | 0.01% |
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| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 275,808 | $317,179 | 0.01% |
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| BOOTHBAY FUND MANAGEMENT, LLC | 271,902 | $312,687 | 0.01% |
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| ACADIAN ASSET MANAGEMENT LLC | 798,603 | $917 | 0.00% |
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| ATTICUS WEALTH MANAGEMENT, LLC | 10,000 | $11,500 | 0.00% |
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| Neuberger Berman Group LLC | 2,369,855 | $2,725,333 | 0.00% |
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| Engineers Gate Manager LP | 52,433 | $60,298 | 0.00% |
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| Newbridge Financial Services Group, Inc. | 4,500 | $5,175 | 0.00% |
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