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
AAON INC COM 000360206 1,169 25,317 SH   SOLE   25,228 0 89
ADDUS HOMECARE CORP COM 006739106 8,135 127,939 SH   SOLE   88,797 0 39,142
ALLIED MOTION TECH COM 019330109 6,306 183,421 SH   SOLE   120,804 0 62,617
ALTRA IND MOTION COM 02208R106 558 17,990 SH   SOLE   17,880 0 110
AMERISAFE INC COM 03071H100 911 15,337 SH   SOLE   15,272 0 65
ANGIODYNAMICS COM 03475V101 7,967 348,541 SH   SOLE   235,519 0 113,022
ANI PHARMACEUTICALS INC COM 00182C103 1,793 25,431 SH   SOLE   25,391 0 40
ANIKA THERAPEUTICS INC COM 035255108 6,217 205,609 SH   SOLE   137,652 0 67,957
ARCOSA INC COM 039653100 346 11,339 SH   SOLE   11,262 0 76
ARGAN INC COM 04010E109 11,095 222,139 SH   SOLE   156,986 0 65,153
ASGN INC. COM 00191U102 542 8,544 SH   SOLE   8,490 0 54
ATRION CORP COM 049904105 10,175 11,580 SH   SOLE   8,212 0 3,368
BANNER CORP COM 06652V208 372 6,880 SH   SOLE   6,841 0 39
BASSETT FURN COM 070203104 4,877 297,215 SH   SOLE   195,124 0 102,091
BAYCOM CORP COM 07272m107 6,079 268,527 SH   SOLE   174,590 0 93,937
BEL FUSE INC CL B COM 077347300 4,186 165,619 SH   SOLE   118,906 0 46,713
BENCHMARK ELECTRONICS INC COM 08160H101 286 10,919 SH   SOLE   10,773 0 146
BIOSPECIFICS TECHNOLOGIES COM 090931106 5,453 87,491 SH   SOLE   59,621 0 27,870
BIOTELEMETRY INC COM 090672106 5,463 87,252 SH   SOLE   59,886 0 27,366
C AND J ENERGY SERVICES COM 12674R100 313 20,215 SH   SOLE   20,090 0 125
CABOT MICROELCT COM 12709P103 597 5,334 SH   SOLE   5,300 0 34
CALAMP CORP COM 128126109 4,494 357,284 SH   SOLE   224,479 0 132,805
CALLAWAY GOLF CO COM 131193104 943 59,250 SH   SOLE   58,880 0 370
CANTEL MEDICAL CORP COM 138098108 355 5,320 SH   SOLE   5,286 0 34
CARDIOVASCULAR SYSTEMS INC COM 141619106 6,102 157,856 SH   SOLE   103,656 0 54,200
CENTURY COMMUNITIES INC COM 156504300 7,489 312,444 SH   SOLE   211,892 0 100,552
CHART INDUSTRIES INC COM 16115Q308 922 10,191 SH   SOLE   10,127 0 64
CHASE CORP COM 16150R104 824 8,908 SH   SOLE   8,886 0 22
CHUYS HOLDINGS INC COM 171604101 6,039 265,233 SH   SOLE   178,533 0 86,700
CIRCOR INTL COM 17273K109 5,501 168,759 SH   SOLE   146,843 0 21,916
CITIZENS COMM BCP COM 174903104 4,036 338,388 SH   SOLE   216,939 0 121,449
CLEARFIELD INC COM 18482P103 4,795 326,253 SH   SOLE   201,059 0 125,194
COMMUNITY HEALTHCARE TRUST COM 20369C106 9,374 261,187 SH   SOLE   159,399 0 101,788
COOPER STANDARD COM 21676p103 349 7,447 SH   SOLE   7,400 0 47
CRA INTERNATIONAL INC COM 12618T105 6,163 121,958 SH   SOLE   82,166 0 39,792
CRYOLIFE INC COM 228903100 7,823 268,215 SH   SOLE   182,996 0 85,219
CULP INC COM 230215105 4,907 255,182 SH   SOLE   156,002 0 99,180
DEL FRISCOS RSTRNT GRP COM 245077102 2,248 350,750 SH   SOLE   225,016 0 125,734
DEL TACO RESTAURANTS INC COM 245496104 5,146 511,547 SH   SOLE   360,123 0 151,424
DORMAN PRODUCTS INC COM 258278100 377 4,285 SH   SOLE   4,257 0 28
EAGLE BANCORP MONTANA INC COM 26942g100 2,414 142,533 SH   SOLE   80,410 0 62,123
EMERGENT BIOSOL COM 29089Q105 439 8,705 SH   SOLE   8,650 0 55
EMPLOYERS HOLDINGS INC COM 292218104 211 5,267 SH   SOLE   5,234 0 33
ENANTA PHARMA INC COM 29251m106 341 3,572 SH   SOLE   3,550 0 22
ENTERPRISE FINANCIAL SERVICE COM 293712105 6,050 148,407 SH   SOLE   93,333 0 55,074
EPLUS INC COM 294268107 10,214 115,368 SH   SOLE   76,735 0 38,633
EQUITY BANCSHARES CL A COM 29460X109 3,751 130,247 SH   SOLE   79,886 0 50,361
EXLSERVICE HOLDINGS INC COM 302081104 910 15,170 SH   SOLE   15,071 0 99
EXPONENT INC COM 30214U102 600 10,405 SH   SOLE   10,340 0 65
EXTERRAN CORP COM 30227H106 3,154 187,212 SH   SOLE   125,115 0 62,097
FIESTA RESTAURANT GROUP COM 31660B101 5,849 446,178 SH   SOLE   328,933 0 117,245
FIRST BANCSHARES INC COM 318916103 4,093 132,491 SH   SOLE   87,010 0 45,481
FIRST BUSEY CORP COM 319383204 12,695 520,319 SH   SOLE   353,956 0 166,363
FIRST FINL NW COM 32022K102 4,023 255,445 SH   SOLE   147,013 0 108,432
FIRST INTERNET BANCORP COM 320557101 1,727 89,375 SH   SOLE   56,521 0 32,854
FIRST MID-ILLINOIS BNCSHS COM 320866106 3,933 118,063 SH   SOLE   78,520 0 39,543
FLEXSTEEL INDS COM 339382103 4,806 207,266 SH   SOLE   130,730 0 76,536
FORWARD AIR CORP COM 349853101 805 12,451 SH   SOLE   12,378 0 73
FOX FACTORY HOLDING CORP COM 35138V102 567 8,127 SH   SOLE   8,082 0 45
FS KKR Capital Corp COM 302635107 1,254 207,360 SH   SOLE   206,480 0 880
GENESEE AND WYOMING INC CL A COM 371559105 641 7,362 SH   SOLE   7,317 0 45
GLOBUS MEDICAL INC A COM 379577208 215 4,356 SH   SOLE   4,328 0 28
GP STRATEGIES COM 36225V104 2,369 195,014 SH   SOLE   111,694 0 83,320
GRAHAM CORP COM 384556106 14,007 713,556 SH   SOLE   443,807 0 269,749
GUARANTY BANCSHARES COM 400764106 4,518 154,623 SH   SOLE   93,400 0 61,223
H AND E EQUIP SVCS COM 404030108 4,861 193,593 SH   SOLE   153,763 0 39,830
HACKETT GROUP INC COM 404609109 3,271 207,072 SH   SOLE   148,135 0 58,937
HARBORONE BANCORP COM 41165F101 2,122 123,394 SH   SOLE   81,119 0 42,275
HAWKINS INC COM 420261109 4,075 110,663 SH   SOLE   74,685 0 35,978
HEALTHSTREAM INC COM 42222N103 7,160 255,197 SH   SOLE   175,373 0 79,824
HERITAGE FINL COM 42722X106 11,541 382,929 SH   SOLE   259,714 0 123,215
HILL INTERNATIONAL INC COM 431466101 5,645 1,933,229 SH   SOLE   1,312,536 0 620,693
HOME BANCORP INC COM 43689E107 4,365 131,301 SH   SOLE   84,168 0 47,133
HOME BANCSHARES INC COM 436893200 476 27,095 SH   SOLE   26,869 0 226
HOMETRUST BANCSHARES INC COM 437872104 10,123 401,730 SH   SOLE   248,799 0 152,931
HOOKER FURNITURE COM 439038100 4,660 161,647 SH   SOLE   97,255 0 64,392
HORACE MANN EDUCATORS COM 440327104 839 23,845 SH   SOLE   23,694 0 151
HORIZON BANCORP INC COM 440407104 1,186 73,744 SH   SOLE   73,485 0 259
HOUSTON WIRE AND CABLE COM 44244K109 4,864 768,463 SH   SOLE   449,428 0 319,035
HURCO COMPANIES COM 447324104 9,042 224,212 SH   SOLE   136,653 0 87,559
ICF INTERNATIONAL INC COM 44925C103 268 3,534 SH   SOLE   3,512 0 22
INDEPNDNT BK MI COM 453838609 4,979 231,625 SH   SOLE   159,574 0 72,051
INFO SERVICES GRP COM 45675y104 5,460 1,464,032 SH   SOLE   886,266 0 577,766
INNOVATIVE INDUSTRIES COM 45781v101 2,216 27,133 SH   SOLE   22,343 0 4,790
INSTALLED BUILDING PRODUCTS COM 45780R101 271 5,603 SH   SOLE   5,568 0 35
INSTEEL INDUST INC COM 45774W108 7,213 344,791 SH   SOLE   231,814 0 112,977
INTEGER HOLDINGS CORP COM 45826H109 412 5,464 SH   SOLE   5,430 0 34
INTREPID POTASH INC COM 46121Y102 533 140,867 SH   SOLE   140,280 0 587
JACK IN THE BOX COM 466367109 411 5,082 SH   SOLE   5,050 0 32
JOHNSON OUTDOORS COM 479167108 15,837 221,935 SH   SOLE   151,548 0 70,387
KEMET CORP COM 488360207 417 24,600 SH   SOLE   24,450 0 150
KIRBY CORP COM 497266106 579 7,720 SH   SOLE   7,670 0 50
KLX ENERGY SVCS COM 48253l106 7,441 296,019 SH   SOLE   202,362 0 93,657
KOPPERS HLDGS COM 50060P106 8,084 311,193 SH   SOLE   241,614 0 69,579
KVH INDS COM 482738101 2,245 220,315 SH   SOLE   179,677 0 40,638
LANDEC CORP COM 514766104 7,109 578,921 SH   SOLE   355,070 0 223,851
LANDSTAR SYSTEM INC COM 515098101 760 6,950 SH   SOLE   6,905 0 45
LEMAITRE VASCULAR INC COM 525558201 11,711 377,781 SH   SOLE   234,987 0 142,794
LUMINEX CORP COM 55027E102 12,821 557,205 SH   SOLE   372,690 0 184,515
M/I HOMES INC COM 55305b101 4,498 169,008 SH   SOLE   117,034 0 51,974
MALIBU BOATS COM 56117J100 3,017 76,234 SH   SOLE   49,510 0 26,724
MARINEMAX INC COM 567908108 11,834 617,681 SH   SOLE   424,949 0 192,732
MAXIMUS INC COM 577933104 658 9,280 SH   SOLE   9,220 0 60
MERCANTILE BANK CORP COM 587376104 2,756 84,230 SH   SOLE   53,136 0 31,094
MERIDIAN BANCORP INC COM 58958U103 7,246 461,864 SH   SOLE   319,561 0 142,303
MERIT MEDICAL SYS COM 589889104 474 7,680 SH   SOLE   7,630 0 50
MERITAGE HOMES CORP COM 59001A102 485 10,861 SH   SOLE   10,791 0 70
MESA LABORATORIES INC COM 59064R109 13,858 60,125 SH   SOLE   40,245 0 19,880
METHODE ELECTRONICS INC COM 591520200 7,970 276,942 SH   SOLE   215,742 0 61,200
MIDSOUTH BCP COM 598039105 6,444 564,786 SH   SOLE   352,172 0 212,614
MILLER INDUSTRIES COM 600551204 9,055 293,529 SH   SOLE   182,908 0 110,621
MINERALS TECHNOLOGIES INC COM 603158106 236 4,025 SH   SOLE   3,999 0 26
MITEK SYSTEMS INC COM 606710200 4,898 400,169 SH   SOLE   262,907 0 137,262
MKS INSTRUMENTS INC COM 55306N104 498 5,361 SH   SOLE   5,326 0 35
MTS SYSTEMS CORP COM 553777103 1,142 20,973 SH   SOLE   20,910 0 63
MYR GROUP COM 55405W104 9,113 263,160 SH   SOLE   181,076 0 82,084
NANOMETRICS INC COM 630077105 5,851 189,506 SH   SOLE   163,230 0 26,276
NAT GAS SERVICES COM 63886Q109 3,393 196,051 SH   SOLE   133,779 0 62,272
NAVIGATORS GROUP INC COM 638904102 316 4,524 SH   SOLE   4,494 0 30
NEOGEN CORP COM 640491106 1,206 21,021 SH   SOLE   20,945 0 76
NIC INC COM 62914B100 280 16,434 SH   SOLE   16,327 0 107
OLD SECOND BANCORP INC COM 680277100 16,712 1,327,440 SH   SOLE   853,044 0 474,396
OLIN CORP COM 680665205 433 18,737 SH   SOLE   18,690 0 47
ORASURE TECHNOLOGIES INC COM 68554V108 317 28,461 SH   SOLE   28,261 0 200
ORTHOFIX INTL NV COM 68752M108 2,323 41,191 SH   SOLE   34,830 0 6,361
PAR TECHNOLOGY CORP COM 698884103 16,988 694,526 SH   SOLE   445,987 0 248,539
PCSB FINANCIAL CORP COM 69324r104 4,094 209,218 SH   SOLE   137,263 0 71,955
PRGX GLOBAL INC COM 69357c503 9,392 1,185,899 SH   SOLE   727,795 0 458,104
PROASSURANCE CORP COM 74267C106 200 5,794 SH   SOLE   5,756 0 38
PROVIDENCE SVC COM 743815102 438 6,581 SH   SOLE   6,540 0 41
RANDOLPH BANCORP INC COM 752378109 7,729 511,564 SH   SOLE   306,509 0 205,055
REGENEX BIO COM 75901B107 426 7,437 SH   SOLE   7,390 0 47
REX AMERICAN RESOURCES COM 761624105 3,633 45,078 SH   SOLE   27,977 0 17,101
RIVERVIEW BANCORP INC COM 769397100 2,257 308,756 SH   SOLE   221,941 0 86,815
RLI CORP COM 749607107 538 7,511 SH   SOLE   7,464 0 47
ROGERS CORP COM 775133101 1,289 8,119 SH   SOLE   8,085 0 34
RPC INC COM 749660106 323 28,325 SH   SOLE   28,150 0 175
RUDOLPH TECH COM 781270103 8,597 377,078 SH   SOLE   267,459 0 109,619
SAFETY INSURANCE GROUP INC COM 78648T100 905 10,395 SH   SOLE   10,357 0 38
SCANSOURCE INC COM 806037107 792 22,124 SH   SOLE   22,058 0 66
SELECT BANCORP INC COM 81617L108 5,543 487,582 SH   SOLE   329,181 0 158,401
SELECTIVE INSURANCE GROUP COM 816300107 638 10,089 SH   SOLE   10,027 0 62
STERLING CONSTRUCTION CO COM 859241101 4,199 335,437 SH   SOLE   237,217 0 98,220
STEVEN MADDEN LTD COM 556269108 897 26,512 SH   SOLE   26,340 0 172
STOCK YARDS BANCORP INC COM 861025104 831 24,606 SH   SOLE   24,450 0 156
STONERIDGE INC COM 86183P102 8,244 285,678 SH   SOLE   203,307 0 82,371
SUPERNUS PHARMACEUTICALS INC COM 868459108 957 27,326 SH   SOLE   27,201 0 125
SYNNEX CORP COM 87162W100 458 4,811 SH   SOLE   4,782 0 29
TECOGEN INC COM 87876p201 1,492 374,041 SH   SOLE   311,858 0 62,183
THOR INDUSTRIES INC COM 885160101 703 11,286 SH   SOLE   11,221 0 65
TIMKEN STEEL CORP COM 887399103 4,486 413,116 SH   SOLE   355,696 0 57,420
TRANSCAT INC COM 893529107 5,558 241,906 SH   SOLE   165,350 0 76,556
TRICO BANCSHARES COM 896095106 511 13,029 SH   SOLE   11,048 0 1,981
TRINITY INDUSTRIES INC COM 896522109 391 18,002 SH   SOLE   17,888 0 114
UFP TECH INC COM 902673102 12,403 331,648 SH   SOLE   239,973 0 91,675
ULTRA CLEAN HOLDINGS COM 90385V107 4,920 475,380 SH   SOLE   366,841 0 108,539
ULTRALIFE CORP COM 903899102 6,446 627,736 SH   SOLE   447,878 0 179,858
UNIFIRST CORP MA COM 904708104 590 3,845 SH   SOLE   3,821 0 24
UNIVRSL STNLESS COM 913837100 3,315 200,078 SH   SOLE   123,029 0 77,049
US PHYSICAL THPY COM 90337L108 12,272 116,844 SH   SOLE   72,962 0 43,882
UTAH MEDICAL PRODUCTS COM 917488108 5,111 57,924 SH   SOLE   37,196 0 20,728
VIRTUSA CORP COM 92827P102 1,547 28,960 SH   SOLE   28,865 0 95
VISHAY PRECISION COM 92835k103 8,368 244,618 SH   SOLE   152,368 0 92,250
WATSCO INC COM 942622200 563 3,937 SH   SOLE   3,915 0 22
WILLDAN GROUP INC COM 96924n100 5,888 158,847 SH   SOLE   106,538 0 52,309
ZIX CORP COM 98974P100 5,592 812,913 SH   SOLE   520,137 0 292,776