The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ABRAXAS PETROL COM 003830106 2,511 2,222,240 SH   SOLE   0 1,160,130 1,062,110
ACETO CORP COM 004446100 4,388 200,466 SH   SOLE   0 115,755 84,711
ADDUS HOMECARE CORP COM 006739106 2,570 147,474 SH   SOLE   0 70,510 76,964
ALLIED MOTION TECH COM 019330109 9,067 389,829 SH   SOLE   0 185,412 204,417
AMERICAN STATES WATER CO COM 029899101 954 21,784 SH   SOLE   0 19,384 2,400
AMERISAFE INC COM 03071H100 1,056 17,250 SH   SOLE   0 15,334 1,916
AMN HEALTHCARE SER INC COM 001744101 923 23,103 SH   SOLE   0 20,583 2,520
ANI PHARMACEUTICALS COM 00182c103 550 9,862 SH   SOLE   0 8,846 1,016
ARCTIC CAT COM 039670104 1,485 87,410 SH   SOLE   0 78,320 9,090
ARGAN INC COM 04010E109 14,820 355,230 SH   SOLE   0 192,933 162,297
ATRION CORP COM 049904105 10,660 24,917 SH   SOLE   0 11,958 12,959
AUTOBYTEL INC COM 05275N205 7,107 512,417 SH   SOLE   0 248,274 264,143
AZZ INC COM 002474104 781 13,031 SH   SOLE   0 11,631 1,400
BANNER CORP COM 06652V208 453 10,671 SH   SOLE   0 9,571 1,100
BASSETT FURN COM 070203104 9,712 405,717 SH   SOLE   0 199,407 206,310
BEL FUSE INC CL B COM 077347300 4,020 226,125 SH   SOLE   0 115,778 110,347
BENCHMARK ELEC COM 08160H101 746 35,313 SH   SOLE   0 31,444 3,869
BNC BANCORP COM 05566T101 431 19,016 SH   SOLE   0 16,900 2,116
BRIDGE BANCORP COM 108035106 10,623 374,060 SH   SOLE   0 207,710 166,350
BUFFALO WILD WNGS COM 119848109 672 4,841 SH   SOLE   0 4,341 500
CALAMP CORP COM 128126109 9,073 612,673 SH   SOLE   0 334,081 278,592
CALLAWAY GOLF CO COM 131193104 12,668 1,240,747 SH   SOLE   0 681,004 559,743
CAMBREX CORP COM 132011107 8,205 158,615 SH   SOLE   0 88,460 70,155
CARRIZO OIL AND GAS COM 144577103 302 8,450 SH   SOLE   0 7,580 870
CASEY'S GENERAL COM 147528103 462 3,519 SH   SOLE   0 3,119 400
CENTERSTATE BANKS INC COM 15201P109 3,017 191,587 SH   SOLE   0 141,607 49,980
CLARCOR INC COM 179895107 714 11,748 SH   SOLE   0 10,436 1,312
CLEARFIELD INC COM 18482P103 10,279 574,591 SH   SOLE   0 264,004 310,587
CRA INTERNATIONAL INC COM 12618T105 9,406 372,984 SH   SOLE   0 171,834 201,150
CULP INC COM 230215105 1,034 37,447 SH   SOLE   0 33,337 4,110
CURTISS WRIGHT COM 231561101 614 7,288 SH   SOLE   0 6,485 803
CYNOSURE INC COM 232577205 14,594 300,014 SH   SOLE   0 167,011 133,003
DEL TACO RESTAURANTS INC COM 245496104 7,868 864,700 SH   SOLE   0 399,730 464,970
DELUXE CORP COM 248019101 611 9,221 SH   SOLE   0 8,206 1,015
DRIL QUIP COM 262037104 1,074 18,383 SH   SOLE   0 16,382 2,001
ENTERPRISE FINANCIAL SERVICE COM 293712105 10,716 384,257 SH   SOLE   0 177,946 206,311
EPLUS COM 294268107 13,642 166,795 SH   SOLE   0 82,062 84,733
EQUITY BANCSHARES CL A COM 29460X109 5,389 243,445 SH   SOLE   0 127,170 116,275
ERA GROUP INC COM 26885G109 10,640 1,132,019 SH   SOLE   0 558,754 573,265
EVOLUTION PETRO CORP COM 30049A107 5,721 1,045,972 SH   SOLE   0 508,159 537,813
EXLSERVICE HOLDINGS INC COM 302081104 1,311 25,028 SH   SOLE   0 22,228 2,800
EXPONENT INC COM 30214U102 391 6,700 SH   SOLE   0 5,900 800
FABRINET COM G3323L100 14,639 394,388 SH   SOLE   0 205,498 188,890
FIRST BUSEY CORP COM 319383204 5,919 276,743 SH   SOLE   0 113,994 162,749
FIRST FINL NW COM 32022K102 5,990 451,077 SH   SOLE   0 219,838 231,239
FLEXSTEEL INDS COM 339382103 4,722 119,198 SH   SOLE   0 47,388 71,810
FORWARD AIR COM 349853101 880 19,770 SH   SOLE   0 17,650 2,120
GENESEE WYOMING COM 371559105 662 11,238 SH   SOLE   0 10,010 1,228
GENTHERM INC COM 37253A103 529 15,467 SH   SOLE   0 13,870 1,597
GLOBAL MEDICAL REIT INC COM 37954A204 8,199 811,000 SH   SOLE   0 425,920 385,080
GP STRATEGIES COM 36225V104 7,419 342,052 SH   SOLE   0 157,784 184,268
GRACO INC COM 384109104 986 12,486 SH   SOLE   0 10,875 1,611
GRAHAM CORP COM 384556106 7,332 398,088 SH   SOLE   0 191,684 206,404
GULFPORT ENERGY COM 402635304 307 9,830 SH   SOLE   0 8,820 1,010
HACKETT GROUP INC COM 404609109 8,457 609,766 SH   SOLE   0 294,816 314,950
HARSCO CORP COM 415864107 7,514 1,131,730 SH   SOLE   0 569,710 562,020
HAYNES INT'L INC COM 420877201 5,058 157,683 SH   SOLE   0 79,740 77,943
HEALTHSTREAM INC COM 42222n103 11,527 434,673 SH   SOLE   0 217,500 217,173
HEARTLAND EXP COM 422347104 475 27,360 SH   SOLE   0 24,550 2,810
HEICO CORP NEW COM COM 422806109 620 9,290 SH   SOLE   0 8,280 1,010
HELEN OF TROY COM G4388N106 1,006 9,788 SH   SOLE   0 8,680 1,108
HERITAGE FINL COM 42722X106 11,232 638,910 SH   SOLE   0 295,660 343,250
HERITAGE OAKS BANCORP COM 42724R107 11,139 1,403,002 SH   SOLE   0 823,391 579,611
HILL INTERNATIONAL INC COM 431466101 7,729 1,899,105 SH   SOLE   0 875,726 1,023,379
HOME BANCSHARES COM 436893200 1,192 60,256 SH   SOLE   0 53,600 6,656
HORACE MANN EDUCATORS COM 440327104 923 27,343 SH   SOLE   0 24,312 3,031
HORIZON BANCORP COM 440407104 615 24,501 SH   SOLE   0 21,942 2,559
HOUSTON WRE AND CBLE COM 44244K109 5,555 1,058,204 SH   SOLE   0 466,590 591,614
HURCO COMPANIES COM 447324104 4,060 145,906 SH   SOLE   0 63,867 82,039
IMMERSION CORPORATION COM 452521107 5,559 757,455 SH   SOLE   0 407,180 350,275
INDEPNDNT BK MI COM 453838609 8,319 573,380 SH   SOLE   0 273,340 300,040
INFINITY PROPERTY AND CASUALTY COM 45665Q103 2,533 31,415 SH   SOLE   0 28,109 3,306
INFO SERVICES GRP COM 45675y104 6,593 1,758,216 SH   SOLE   0 857,907 900,309
INNOPHOS HOLDINGS INC COM 45774N108 363 8,613 SH   SOLE   0 7,720 893
INOGEN INC COM 45780L104 976 19,481 SH   SOLE   0 17,368 2,113
JOHNSON OUTDOORS COM 479167108 5,708 222,116 SH   SOLE   0 116,485 105,631
KADANT INC COM 48282T104 8,327 161,667 SH   SOLE   0 75,507 86,160
KIRBY CORP COM 497266106 1,177 18,880 SH   SOLE   0 16,494 2,386
KMG CHEMICALS INC COM 482564101 1,961 75,480 SH   SOLE   0 67,820 7,660
KVH INDS COM 482738101 1,772 230,225 SH   SOLE   0 125,678 104,547
LANDEC CORP COM 514766104 8,248 766,600 SH   SOLE   0 377,900 388,700
LANDSTAR SYST COM 515098101 833 12,134 SH   SOLE   0 10,819 1,315
LEMAITRE VASCULAR INC COM 525558201 2,932 205,498 SH   SOLE   0 100,116 105,382
LIFEPOINT HOSPITALS INC COM 53219l109 699 10,700 SH   SOLE   0 10,689 11
LITHIA MOTORS INC CL A COM 536797103 557 7,850 SH   SOLE   0 6,943 907
LOGMEIN INC COM COM 54142L109 826 13,029 SH   SOLE   0 11,629 1,400
LSI INDUSTRIES INC COM 50216C108 14,571 1,316,330 SH   SOLE   0 608,470 707,860
LUMINEX CORP COM 55027E102 6,241 308,526 SH   SOLE   0 168,925 139,601
LYDALL INC COM 550819106 9,645 250,142 SH   SOLE   0 134,312 115,830
MAGELLAN HEALTH COM 559079207 526 8,000 SH   SOLE   0 7,180 820
MARINEMAX INC COM 567908108 9,967 587,345 SH   SOLE   0 352,735 234,610
MATRIX SVC CO COM 576853105 4,942 299,737 SH   SOLE   0 158,819 140,918
MAXIMUS INC COM 577933104 835 15,084 SH   SOLE   0 13,448 1,636
MB FINANCIAL COM 55264U108 561 15,472 SH   SOLE   0 13,862 1,610
MERCANTILE BANK CORP COM 587376104 3,648 152,900 SH   SOLE   0 68,500 84,400
MERCURY SYSTEMS COM 589378108 6,866 276,220 SH   SOLE   0 138,033 138,187
MERIDIAN BANCORP INC COM 58958U103 5,422 366,864 SH   SOLE   0 169,624 197,240
MERIT MEDICAL SYS COM 589889104 9,109 459,358 SH   SOLE   0 229,914 229,444
METHODE ELECTRONICS INC COM 591520200 599 17,502 SH   SOLE   0 15,564 1,938
MILLER INDUSTRIES COM 600551204 8,196 398,097 SH   SOLE   0 190,467 207,630
MKS INSTRUMENTS COM 55306N104 936 21,758 SH   SOLE   0 19,398 2,360
MODEL N INC COM 607525102 821 61,559 SH   SOLE   0 41,059 20,500
MTS SYSTEMS CORP COM 553777103 736 16,794 SH   SOLE   0 14,965 1,829
MUTUAL 1ST FINL COM 62845B104 2,804 102,536 SH   SOLE   0 47,962 54,574
MYR GROUP COM 55405W104 7,202 299,116 SH   SOLE   0 137,257 161,859
NAT GAS SERVICES COM 63886Q109 5,420 236,708 SH   SOLE   0 120,988 115,720
NAUTILUS INC COM 63910B102 2,899 162,554 SH   SOLE   0 148,185 14,369
NAVIGATORS GROUP INC COM 638904102 361 3,935 SH   SOLE   0 3,530 405
NEOGEN CORP COM COM 640491106 1,407 25,030 SH   SOLE   0 22,221 2,809
NEOGENOMICS INC COM 64049M209 4,194 521,652 SH   SOLE   0 283,809 237,843
NIC INC COM 62914B100 659 30,049 SH   SOLE   0 26,925 3,124
OLD SECOND BCP COM 680277100 9,957 1,457,861 SH   SOLE   0 672,243 785,618
OMEGA PROTEIN COM 68210P107 1,762 88,160 SH   SOLE   0 80,330 7,830
OMNICELL INC COM 68213n109 5,366 156,771 SH   SOLE   0 88,073 68,698
OVERSTOCK COM INC COM 690370101 8,322 516,575 SH   SOLE   0 296,085 220,490
PACIFIC ETHANOL INC COM 69423U305 12,950 2,376,278 SH   SOLE   0 1,190,890 1,185,388
PAPA JOHN'S INTL COM 698813102 626 9,216 SH   SOLE   0 8,216 1,000
PARK STERLING COM 70086Y105 4,565 643,940 SH   SOLE   0 295,718 348,222
PARK OHIO HLDGS COM 700666100 5,672 200,586 SH   SOLE   0 92,390 108,196
PDF SOLUTIONS COM 693282105 8,265 590,818 SH   SOLE   0 298,633 292,185
PERCEPTRON INC COM 71361F100 1,693 361,907 SH   SOLE   0 167,976 193,931
PERFICIENT INC COM 71375U101 5,054 248,868 SH   SOLE   0 124,380 124,488
PLANET PAYMENT INC COM U72603118 9,690 2,158,330 SH   SOLE   0 1,034,485 1,123,845
PREFERRED BANK LA COM 740367404 5,471 189,490 SH   SOLE   0 85,025 104,465
PROASSURANCE CORP COM 74267C106 542 10,135 SH   SOLE   0 9,026 1,109
PROVIDENCE SVC COM 743815102 4,590 102,278 SH   SOLE   0 58,785 43,493
REDROBIN GRMT COM 75689M101 582 12,271 SH   SOLE   0 11,013 1,258
RENEWABLE ENERGY GRP COM 75972A301 11,480 1,300,189 SH   SOLE   0 739,735 560,454
RIGNET INC COM 766582100 1,700 127,030 SH   SOLE   0 80,204 46,826
RING ENERGY COM 76680V108 6,761 766,575 SH   SOLE   0 370,791 395,784
RLI CORP COM 749607107 892 12,970 SH   SOLE   0 11,570 1,400
ROGERS CORP COM 775133101 5,668 92,766 SH   SOLE   0 49,176 43,590
SAFETY INSURANCE GROUP INC COM 78648T100 635 10,316 SH   SOLE   0 9,206 1,110
SAGENT PHARMACEUTICALS INC COM 786692103 9,474 632,499 SH   SOLE   0 308,610 323,889
SCANSOURCE COM 806037107 610 16,452 SH   SOLE   0 14,669 1,783
SCHNITZER STEEL COM 806882106 1,550 88,080 SH   SOLE   0 80,330 7,750
SELECTIVE INS COM 816300107 1,025 26,847 SH   SOLE   0 23,847 3,000
SI FINANCIAL GROUP INC COM 78425V104 14,359 1,084,537 SH   SOLE   0 531,303 553,234
SIFCO IND COM 826546103 6,326 632,559 SH   SOLE   0 354,840 277,719
SOUTH ST CORP COM 840441109 470 6,912 SH   SOLE   0 6,195 717
SOUTHERN NATL COM 843395104 2,283 187,931 SH   SOLE   0 98,978 88,953
SOUTHWEST GAS COM 844895102 966 12,285 SH   SOLE   0 10,936 1,349
STEVE MADDEN COM 556269108 1,045 30,574 SH   SOLE   0 27,201 3,373
SUPERNUS PHARMA INC COM 868459108 696 34,188 SH   SOLE   0 30,388 3,800
SYNNEX CORP COM COM 87162w100 794 8,378 SH   SOLE   0 7,464 914
TELEDYNE TECH COM 879360105 576 5,816 SH   SOLE   0 5,210 606
TEXAS ROADHOUSE INC COM 882681109 1,088 23,867 SH   SOLE   0 21,244 2,623
THOR INDS COM 885160101 833 12,869 SH   SOLE   0 11,455 1,414
TIMKEN STEEL CORP COM 887399103 4,148 431,280 SH   SOLE   0 198,805 232,475
TRC COS INC COM 872625108 5,899 933,431 SH   SOLE   0 430,720 502,711
TRICO BANCSHARES COM 896095106 6,685 242,243 SH   SOLE   0 135,130 107,113
UFP TECH INC COM 902673102 7,147 317,104 SH   SOLE   0 146,279 170,825
ULTRA CLEAN HOLDINGS COM 90385V107 4,951 870,267 SH   SOLE   0 445,066 425,201
UNIFIRST COM 904708104 619 5,356 SH   SOLE   0 4,749 607
UNIVERSAL ELEC COM 913483103 7,005 96,919 SH   SOLE   0 56,559 40,360
UNIVRSL STNLESS COM 913837100 3,202 293,830 SH   SOLE   0 137,800 156,030
US PHYSICAL THPY COM 90337L108 10,410 172,909 SH   SOLE   0 93,836 79,073
USA TECHNOLOGIES INC COM 90328S500 2,360 552,839 SH   SOLE   0 312,934 239,905
USA TRUCK COM 902925106 2,857 163,173 SH   SOLE   0 77,025 86,148
VASCULAR SOLUTIONS INC COM 92231M109 11,740 281,820 SH   SOLE   0 143,396 138,424
VCA ANTECH COM 918194101 851 12,596 SH   SOLE   0 11,231 1,365
VIRTUSA CORP COM 92827P102 564 19,548 SH   SOLE   0 17,429 2,119
WATERSTONE FINANCIAL INC COM 94188P101 3,242 211,500 SH   SOLE   0 106,000 105,500
WATSCO INC COM 942622200 782 5,561 SH   SOLE   0 4,857 704
WCI COMMUNITIES INC COM 92923C807 13,916 823,448 SH   SOLE   0 419,373 404,075
WINNEBAGO IND COM 974637100 11,132 485,707 SH   SOLE   0 235,397 250,310
ZIX CORP COM 98974P100 5,726 1,527,071 SH   SOLE   0 753,040 774,031
RUSSELL 2000 INDEX ETF COM 464287655 917 7,980 SH   SOLE   0 7,980 0