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
ARC Document Solutions COM 00191G103 1,789 1,988,248 SH   SOLE   1,809,578 0 178,670
AXT Inc COM 00246W103 8,986 1,468,294 SH   SOLE   1,353,164 0 115,130
Acacia Research Corp COM 003881307 4,806 1,385,021 SH   SOLE   1,227,741 0 157,280
Alpine Income Property Trust COM 02083X103 5,512 354,438 SH   SOLE   326,650 0 27,788
American Finance Trust, Inc COM 02607T109 478 76,310 SH   SOLE   47,370 0 28,940
American River Bankshares COM 029326105 4,477 449,507 SH   SOLE   414,307 0 35,200
Amtech Systems COM 032332504 3,654 747,246 SH   SOLE   669,336 0 77,910
Asure Software COM 04649U102 8,721 1,155,121 SH   SOLE   1,038,061 0 117,060
Atlantic Capital Bank COM 048269203 2,673 235,476 SH   SOLE   217,066 0 18,410
Axos Financial COM 05465C100 656 28,140 SH   SOLE   17,490 0 10,650
BG Staffing COM 05544A109 4,197 495,534 SH   SOLE   456,504 0 39,030
Banc of California Inc COM 05990K106 916 90,480 SH   SOLE   56,230 0 34,250
Bank of Commerce Hlds COM 06424J103 4,292 615,718 SH   SOLE   567,503 0 48,215
Barrett Business Services Inc COM 068463108 7,868 150,044 SH   SOLE   132,044 0 18,000
BayCom Corp COM 07272M107 1,622 157,436 SH   SOLE   136,150 0 21,286
Bed Bath and Beyond COM 075896100 1,178 78,630 SH   SOLE   48,930 0 29,700
Benchmark Electronics, Inc COM 08160H101 350 17,370 SH   SOLE   10,800 0 6,570
Blucora Inc COM 095229100 428 45,410 SH   SOLE   28,230 0 17,180
Bridgewater Bancshares COM 108621103 1,001 105,500 SH   SOLE   65,640 0 39,860
Build A Bear Workshop COM 120076104 1,651 660,317 SH   SOLE   591,497 0 68,820
CAI International Inc COM 12477X106 10,308 374,427 SH   SOLE   330,127 0 44,300
CRH Medical COM 12626F105 6,569 3,027,017 SH   SOLE   2,646,324 0 380,693
Caleres Inc COM 129500104 407 42,530 SH   SOLE   26,460 0 16,070
Capital Bancorp COM 139737100 3,440 363,618 SH   SOLE   335,118 0 28,500
Chefs' Warehouse COM 163086101 415 28,570 SH   SOLE   17,750 0 10,820
Citi Trends Inc COM 17306X102 583 23,330 SH   SOLE   14,510 0 8,820
Civista Bancshares COM 178867107 2,633 210,340 SH   SOLE   183,010 0 27,330
Cohu Inc COM 192576106 9,618 559,815 SH   SOLE   494,205 0 65,610
Columbus McKinnon Corp COM 199333105 4,838 146,177 SH   SOLE   125,297 0 20,880
Comfort Systems USA Inc COM 199908104 1,243 24,140 SH   SOLE   14,970 0 9,170
Comtech Telecom Corp COM 205826209 5,984 427,401 SH   SOLE   380,741 0 46,660
ConnectOne Bancorp COM 20786W107 838 59,550 SH   SOLE   36,930 0 22,620
Cra Intl Inc COM 12618T105 6,208 165,678 SH   SOLE   152,708 0 12,970
Customers Bancorp COM 23204G100 827 73,840 SH   SOLE   45,930 0 27,910
DHI Group COM 23331S100 1,229 543,899 SH   SOLE   501,229 0 42,670
DMC Global Inc COM 23291C103 3,456 104,927 SH   SOLE   96,717 0 8,210
DXP Enterprises, Inc COM 233377407 378 23,440 SH   SOLE   14,580 0 8,860
Daktronics, Inc COM 234264109 368 92,930 SH   SOLE   57,820 0 35,110
EPlus Inc COM 294268107 613 8,370 SH   SOLE   5,200 0 3,170
Eagle Bancorp Montana COM 26942G100 3,246 184,212 SH   SOLE   169,672 0 14,540
Enerpac Tool Group COM 292765104 586 31,180 SH   SOLE   19,400 0 11,780
Ennis Inc COM 293389102 1,035 59,330 SH   SOLE   36,790 0 22,540
Esquire Financial Hld COM 29667J101 6,038 402,553 SH   SOLE   370,813 0 31,740
FS Bancorp COM 30263Y104 5,487 133,821 SH   SOLE   123,341 0 10,480
Farmers National Banc Corp COM 309627107 4,265 390,553 SH   SOLE   359,973 0 30,580
First Bancshares Inc COM 318916103 3,154 150,410 SH   SOLE   138,640 0 11,770
First Business Financial Servi COM 319390100 3,901 273,022 SH   SOLE   251,622 0 21,400
First Financial Corp COM 320218100 554 17,650 SH   SOLE   10,980 0 6,670
First Northwest COM 335834107 3,107 313,875 SH   SOLE   289,285 0 24,590
Franchise Group COM 35180X105 380 15,000 SH   SOLE   9,320 0 5,680
FreightCar America Inc COM 357023100 923 404,934 SH   SOLE   362,814 0 42,120
Global Medical REIT COM 37954A204 7,976 590,813 SH   SOLE   529,553 0 61,260
Great Ajax Corp COM 38983D300 4,855 585,624 SH   SOLE   507,379 0 78,245
Hallmark Financial Services In COM 40624Q203 261 99,760 SH   SOLE   62,060 0 37,700
Hanger Inc COM 41043F208 847 53,570 SH   SOLE   33,320 0 20,250
Healthcare Services Group Inc COM 421906108 875 40,640 SH   SOLE   25,290 0 15,350
Heritage Insurance Hlds Inc COM 42727J102 5,552 548,603 SH   SOLE   473,143 0 75,460
Horizon Bancorp COM 440407104 3,647 361,469 SH   SOLE   333,169 0 28,300
Houston Wire & Cable Co COM 44244K109 422 168,840 SH   SOLE   105,050 0 63,790
Hurco Companies Inc COM 447324104 4,892 172,243 SH   SOLE   158,763 0 13,480
Ichor Holdings COM G4740B105 851 39,440 SH   SOLE   24,460 0 14,980
InTest Corp COM 461147100 2,052 455,908 SH   SOLE   420,178 0 35,730
InnerWorkings COM 45773Y105 3,035 1,015,155 SH   SOLE   937,115 0 78,040
Insight Enterprises Inc COM 45765U103 1,487 26,290 SH   SOLE   16,330 0 9,960
Intevac Inc COM 461148108 915 166,110 SH   SOLE   103,010 0 63,100
LCNB Corp COM 50181P100 4,120 301,862 SH   SOLE   278,212 0 23,650
Lakeland Bancorp COM 511637100 714 71,750 SH   SOLE   44,570 0 27,180
Landec Corp COM 514766104 5,749 591,410 SH   SOLE   522,780 0 68,630
Lifetime Brands Inc COM 53222Q103 6,189 654,969 SH   SOLE   577,959 0 77,010
Manitex International Inc COM 563420108 4,610 1,105,411 SH   SOLE   1,018,851 0 86,560
Matrix Service Co COM 576853105 466 55,810 SH   SOLE   34,720 0 21,090
Medifast Inc COM 58470H101 883 5,370 SH   SOLE   3,340 0 2,030
Meta Financial Group COM 59100U108 885 46,060 SH   SOLE   28,560 0 17,500
Metropolitan Bank Hld COM 591774104 5,046 180,214 SH   SOLE   156,714 0 23,500
Mistras Group Inc COM 60649T107 878 224,436 SH   SOLE   196,836 0 27,600
NN Inc COM 629337106 2,235 433,115 SH   SOLE   371,085 0 62,030
NV5 Global Inc COM 62945V109 1,011 19,160 SH   SOLE   11,880 0 7,280
Natural Gas Services Group Inc COM 63886Q109 3,415 404,095 SH   SOLE   361,945 0 42,150
Netgear Inc COM 64111Q104 1,075 34,870 SH   SOLE   21,670 0 13,200
Newpark Resources Inc COM 651718504 106 101,320 SH   SOLE   63,040 0 38,280
Northeast Bank COM 66405S100 7,437 404,211 SH   SOLE   372,551 0 31,660
Northwest Pipe COM 667746101 8,791 332,223 SH   SOLE   306,173 0 26,050
One Stop Systems COM 68247W109 1,671 795,907 SH   SOLE   733,547 0 62,360
Onto Innovation Inc COM 683344105 933 31,341 SH   SOLE   19,432 0 11,909
Orrstown Financial Services COM 687380105 1,922 150,195 SH   SOLE   138,425 0 11,770
PAM Transportation Services, I COM 693149106 4,173 110,990 SH   SOLE   102,290 0 8,700
PC Connection COM 69318J100 969 23,600 SH   SOLE   14,640 0 8,960
PRA Group COM 69354N106 882 22,080 SH   SOLE   13,720 0 8,360
Pacific Premier Bancorp Inc COM 69478X105 465 23,110 SH   SOLE   14,380 0 8,730
Parke Bancorp COM 700885106 3,855 322,834 SH   SOLE   297,545 0 25,289
Patrick Industries COM 703343103 904 15,720 SH   SOLE   9,770 0 5,950
Pennantpark Floating Rate Capi COM 70806A106 3,658 433,424 SH   SOLE   365,294 0 68,130
Perdoceo Education Corp COM 71363P106 326 26,630 SH   SOLE   16,550 0 10,080
Photronics Inc COM 719405102 1,171 117,550 SH   SOLE   73,040 0 44,510
Premier Financial Bancorp COM 74050M105 4,199 388,828 SH   SOLE   358,366 0 30,462
ProFire Energy COM 74316X101 1,309 1,769,944 SH   SOLE   1,631,303 0 138,641
Quantum Corp COM 747906501 2,660 578,358 SH   SOLE   533,038 0 45,320
RMR Group Cls A COM 74967R106 302 11,000 SH   SOLE   6,830 0 4,170
Resources Connection COM 76122Q105 627 54,290 SH   SOLE   33,780 0 20,510
Ribbon Communications Inc COM 762544104 705 182,140 SH   SOLE   112,880 0 69,260
Rimini Street Inc COM 76674Q107 2,157 669,881 SH   SOLE   582,491 0 87,390
Riverview Bancorp COM 769397100 2,534 610,543 SH   SOLE   546,893 0 63,650
SMTC COM 832682207 1,780 491,603 SH   SOLE   452,963 0 38,640
SP Plus Corp COM 78469C103 563 31,340 SH   SOLE   19,500 0 11,840
Shoe Carnival Inc COM 824889109 4,848 144,357 SH   SOLE   125,677 0 18,680
Shyft Group Inc COM 825698103 10,516 557,002 SH   SOLE   490,162 0 66,840
Signet Jewelers COM G81276100 511 27,320 SH   SOLE   16,980 0 10,340
Silvercrest Asset Mgmnt Grp Cl COM 828359109 4,748 453,926 SH   SOLE   418,376 0 35,550
Smith Micro Software COM 832154207 2,157 578,255 SH   SOLE   532,885 0 45,370
Standard Motor COM 853666105 1,008 22,570 SH   SOLE   13,990 0 8,580
Sterling Construction Co Inc COM 859241101 5,603 395,665 SH   SOLE   342,145 0 53,520
Super Micro Computer, Inc COM 86800U104 1,248 47,270 SH   SOLE   29,370 0 17,900
Sykes Enterprises COM 871237103 704 20,590 SH   SOLE   12,790 0 7,800
Textainer Group Holdings COM G8766E109 1,440 101,660 SH   SOLE   63,150 0 38,510
Tristate Capital Hlds COM 89678F100 611 46,180 SH   SOLE   28,700 0 17,480
Triumph Bancorp COM 89679E300 523 16,800 SH   SOLE   10,450 0 6,350
TrueBlue Inc COM 89785X101 617 39,820 SH   SOLE   24,770 0 15,050
Twin Disc Inc COM 901476101 3,591 709,675 SH   SOLE   633,255 0 76,420
Ultra Clean Holdings COM 90385V107 8,248 384,320 SH   SOLE   336,920 0 47,400
Unique Fabricating COM 90915J103 2,864 849,831 SH   SOLE   783,231 0 66,600
Universal Electronics Inc COM 913483103 5,329 141,198 SH   SOLE   123,158 0 18,040
Univeste Financial Corp COM 915271100 437 30,390 SH   SOLE   18,910 0 11,480
Veritex Holdings COM 923451108 528 30,985 SH   SOLE   19,280 0 11,705
Wabash National Corp COM 929566107 1,100 91,960 SH   SOLE   57,030 0 34,930
West Bancorporation COM 95123P106 4,650 293,582 SH   SOLE   258,302 0 35,280
ZAGG Inc COM 98884U108 2,987 1,066,689 SH   SOLE   955,359 0 111,330
Zovio COM 98979V102 1,602 400,412 SH   SOLE   369,002 0 31,410