| Trigran Investments, Inc. | 1,454,717 | $87,894,002 | 8.48% |
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| Pembroke Management, LTD | 459,575 | $27,767,522 | 3.04% |
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| Van Berkom & Associates Inc. | 879,589 | $53,145 | 1.96% |
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| Roubaix Capital, LLC | 38,277 | $2,312,696 | 1.76% |
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| DISCIPLINED GROWTH INVESTORS INC /MN | 1,115,562 | $67,402,256 | 1.73% |
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| Global Alpha Capital Management Ltd. | 299,373 | $18,088,117 | 1.64% |
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| Mesirow Institutional Investment Management, Inc. | 161,790 | $9,775,352 | 1.06% |
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| Bouvel Investment Partners, LLC | 25,246 | $1,525,363 | 0.89% |
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| Bridge City Capital, LLC | 28,470 | $1,720,157 | 0.86% |
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| Guinness Asset Management LTD | 542,153 | $32,752,910 | 0.83% |
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| Guinness Atkinson Asset Management Inc | 24,100 | $1,456,122 | 0.82% |
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| Telemark Asset Management, LLC | 80,000 | $4,833,600 | 0.72% |
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| CHATHAM CAPITAL GROUP, INC. | 43,786 | $2,645,550 | 0.59% |
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| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 105,106 | $6,350,488 | 0.41% |
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| DRIEHAUS CAPITAL MANAGEMENT LLC | 477,926 | $28,876,289 | 0.40% |
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| Robeco Schweiz AG | 390,440 | $23,590,385 | 0.38% |
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| Matisse Capital | 9,446 | $570,727 | 0.37% |
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| CONNORS INVESTOR SERVICES INC | 49,155 | $2,970 | 0.35% |
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| FULLER & THALER ASSET MANAGEMENT, INC. | 961,412 | $58,088,505 | 0.34% |
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| GW&K Investment Management, LLC | 566,229 | $34,211 | 0.33% |
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