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 2,387 2,387,282 SH   SOLE   2,208,612 0 178,670
AXT Inc COM 00246W103 7,315 1,536,773 SH   SOLE   1,421,643 0 115,130
Acacia Research Corp COM 003881307 5,898 1,442,129 SH   SOLE   1,284,849 0 157,280
Alpine Income Property Trust COM 02083X103 6,030 370,841 SH   SOLE   343,053 0 27,788
American Finance Trust, Inc COM 02607T109 302 38,010 SH   SOLE   23,630 0 14,380
American River Bankshares COM 029326105 4,903 460,350 SH   SOLE   425,150 0 35,200
Amtech Systems COM 032332504 5,074 1,041,884 SH   SOLE   963,974 0 77,910
Asure Software COM 04649U102 7,748 1,204,929 SH   SOLE   1,087,869 0 117,060
Atlantic Capital Bank COM 048269203 2,997 246,496 SH   SOLE   228,086 0 18,410
Axos Financial COM 05465C100 621 28,140 SH   SOLE   17,490 0 10,650
BG Staffing COM 05544A109 5,232 462,211 SH   SOLE   427,561 0 34,650
Banc of California Inc COM 05990K106 980 90,480 SH   SOLE   56,230 0 34,250
Bank of Commerce Hlds COM 06424J103 4,884 644,337 SH   SOLE   596,122 0 48,215
Barrett Business Services Inc COM 068463108 7,643 143,857 SH   SOLE   127,437 0 16,420
BayCom Corp COM 07272M107 1,596 123,643 SH   SOLE   107,077 0 16,566
Bed Bath and Beyond COM 075896100 833 78,630 SH   SOLE   48,930 0 29,700
Benchmark Electronics, Inc COM 08160H101 375 17,370 SH   SOLE   10,800 0 6,570
Blucora Inc COM 095229100 519 45,410 SH   SOLE   28,230 0 17,180
Bridgewater Bancshares COM 108621103 1,081 105,500 SH   SOLE   65,640 0 39,860
Build A Bear Workshop COM 120076104 2,004 919,351 SH   SOLE   850,531 0 68,820
CAI International Inc COM 12477X106 6,608 396,614 SH   SOLE   349,694 0 46,920
CRH Medical COM 12626F105 6,429 3,105,592 SH   SOLE   2,728,749 0 376,843
Caleres Inc COM 129500104 355 42,530 SH   SOLE   26,460 0 16,070
Capital Bancorp COM 139737100 4,073 380,630 SH   SOLE   352,130 0 28,500
Citi Trends Inc COM 17306X102 472 23,330 SH   SOLE   14,510 0 8,820
Civista Bancshares COM 178867107 2,938 190,808 SH   SOLE   168,178 0 22,630
Cohu Inc COM 192576106 10,100 582,495 SH   SOLE   516,885 0 65,610
Columbus McKinnon Corp COM 199333105 5,072 151,620 SH   SOLE   130,740 0 20,880
Comfort Systems USA Inc COM 199908104 989 24,270 SH   SOLE   15,100 0 9,170
Comtech Telecom Corp COM 205826209 6,661 394,347 SH   SOLE   354,587 0 39,760
ConnectOne Bancorp COM 20786W107 965 59,870 SH   SOLE   37,250 0 22,620
Cra Intl Inc COM 12618T105 6,850 173,413 SH   SOLE   160,443 0 12,970
Customers Bancorp COM 23204G100 888 73,840 SH   SOLE   45,930 0 27,910
DMC Global Inc COM 23291C103 3,030 109,767 SH   SOLE   101,557 0 8,210
DXP Enterprises, Inc COM 233377407 467 23,440 SH   SOLE   14,580 0 8,860
Daktronics, Inc COM 234264109 404 92,930 SH   SOLE   57,820 0 35,110
EPlus Inc COM 294268107 592 8,370 SH   SOLE   5,200 0 3,170
Eagle Bancorp Montana COM 26942G100 2,794 160,766 SH   SOLE   148,706 0 12,060
Enerpac Tool Group COM 292765104 549 31,180 SH   SOLE   19,400 0 11,780
Ennis Inc COM 293389102 1,082 59,650 SH   SOLE   37,110 0 22,540
Esquire Financial Hld COM 29667J101 6,678 395,123 SH   SOLE   365,523 0 29,600
FS Bancorp COM 30263Y104 5,402 140,060 SH   SOLE   129,580 0 10,480
Farmers National Banc Corp COM 309627107 4,848 408,732 SH   SOLE   378,152 0 30,580
First Bancshares Inc COM 318916103 3,541 157,396 SH   SOLE   145,626 0 11,770
First Business Financial Servi COM 319390100 4,700 285,694 SH   SOLE   264,294 0 21,400
First Financial Corp COM 320218100 650 17,650 SH   SOLE   10,980 0 6,670
First Northwest COM 335834107 4,081 328,545 SH   SOLE   303,955 0 24,590
FormFactor COM 346375108 371 12,640 SH   SOLE   7,860 0 4,780
Franchise Group COM 35180X105 328 15,000 SH   SOLE   9,320 0 5,680
FreightCar America Inc COM 357023100 700 564,288 SH   SOLE   522,168 0 42,120
Global Medical REIT COM 37954A204 6,980 616,048 SH   SOLE   554,788 0 61,260
Great Ajax Corp COM 38983D300 5,591 607,743 SH   SOLE   529,498 0 78,245
Hallmark Financial Services In COM 40624Q203 348 99,760 SH   SOLE   62,060 0 37,700
Hanger Inc COM 41043F208 887 53,570 SH   SOLE   33,320 0 20,250
Healthcare Services Group Inc COM 421906108 994 40,640 SH   SOLE   25,290 0 15,350
Heritage Insurance Hlds Inc COM 42727J102 7,458 569,778 SH   SOLE   494,318 0 75,460
Horizon Bancorp COM 440407104 4,044 378,292 SH   SOLE   349,992 0 28,300
Houston Wire & Cable Co COM 44244K109 398 168,840 SH   SOLE   105,050 0 63,790
Hurco Companies Inc COM 447324104 5,041 180,219 SH   SOLE   166,739 0 13,480
Ichor Holdings COM G4740B105 1,054 39,650 SH   SOLE   24,670 0 14,980
InTest Corp COM 461147100 1,608 477,099 SH   SOLE   441,369 0 35,730
InnerWorkings COM 45773Y105 1,377 1,043,234 SH   SOLE   965,194 0 78,040
Insight Enterprises Inc COM 45765U103 1,483 30,150 SH   SOLE   18,740 0 11,410
Intevac Inc COM 461148108 912 167,010 SH   SOLE   103,910 0 63,100
LCNB Corp COM 50181P100 5,043 315,994 SH   SOLE   292,344 0 23,650
Lakeland Bancorp COM 511637100 545 47,650 SH   SOLE   29,620 0 18,030
Landec Corp COM 514766104 4,899 615,390 SH   SOLE   546,760 0 68,630
Lifetime Brands Inc COM 53222Q103 4,583 682,041 SH   SOLE   605,031 0 77,010
Manitex International Inc COM 563420108 5,751 1,157,083 SH   SOLE   1,070,523 0 86,560
Matrix Service Co COM 576853105 542 55,810 SH   SOLE   34,720 0 21,090
Medifast Inc COM 58470H101 745 5,370 SH   SOLE   3,340 0 2,030
Meta Financial Group COM 59100U108 841 46,310 SH   SOLE   28,810 0 17,500
Metropolitan Bank Hld COM 591774104 6,005 187,196 SH   SOLE   163,696 0 23,500
Mistras Group Inc COM 60649T107 921 233,281 SH   SOLE   205,681 0 27,600
NN Inc COM 629337106 2,743 578,745 SH   SOLE   516,715 0 62,030
NV5 Global Inc COM 62945V109 980 19,280 SH   SOLE   12,000 0 7,280
Natural Gas Services Group Inc COM 63886Q109 3,530 562,940 SH   SOLE   520,790 0 42,150
Netgear Inc COM 64111Q104 838 32,370 SH   SOLE   20,130 0 12,240
Newpark Resources Inc COM 651718504 226 101,320 SH   SOLE   63,040 0 38,280
Northeast Bank COM 66405S100 7,425 423,084 SH   SOLE   391,424 0 31,660
Northwest Pipe COM 667746101 8,716 347,685 SH   SOLE   321,635 0 26,050
One Stop Systems COM 68247W109 1,641 832,849 SH   SOLE   770,489 0 62,360
Onto Innovation Inc COM 683344105 1,073 31,521 SH   SOLE   19,612 0 11,909
Orrstown Financial Services COM 687380105 2,317 157,086 SH   SOLE   145,316 0 11,770
PAM Transportation Services, I COM 693149106 3,572 116,178 SH   SOLE   107,478 0 8,700
PC Connection COM 69318J100 1,099 23,710 SH   SOLE   14,750 0 8,960
PRA Group COM 69354N106 1,254 32,440 SH   SOLE   20,180 0 12,260
Pacific Premier Bancorp Inc COM 69478X105 501 23,110 SH   SOLE   14,380 0 8,730
Parke Bancorp COM 700885106 4,579 337,933 SH   SOLE   312,644 0 25,289
Patrick Industries COM 703343103 963 15,720 SH   SOLE   9,770 0 5,950
Pennantpark Floating Rate Capi COM 70806A106 3,823 455,168 SH   SOLE   387,038 0 68,130
Photronics Inc COM 719405102 1,225 110,050 SH   SOLE   68,470 0 41,580
Premier Financial Bancorp COM 74050M105 5,216 406,892 SH   SOLE   376,430 0 30,462
ProFire Energy COM 74316X101 1,551 1,851,796 SH   SOLE   1,713,155 0 138,641
Quantum Corp COM 747906501 2,336 605,158 SH   SOLE   559,838 0 45,320
Resources Connection COM 76122Q105 650 54,290 SH   SOLE   33,780 0 20,510
Ribbon Communications Inc COM 762544104 724 184,280 SH   SOLE   115,020 0 69,260
Riverview Bancorp COM 769397100 4,805 850,457 SH   SOLE   786,807 0 63,650
SMTC COM 832682207 1,473 486,208 SH   SOLE   449,508 0 36,700
SP Plus Corp COM 78469C103 649 31,340 SH   SOLE   19,500 0 11,840
Shoe Carnival Inc COM 824889109 4,389 149,934 SH   SOLE   131,254 0 18,680
Shyft Group Inc COM 825698103 10,940 649,640 SH   SOLE   575,710 0 73,930
Signet Jewelers COM G81276100 281 27,320 SH   SOLE   16,980 0 10,340
Silvercrest Asset Mgmnt Grp Cl COM 828359109 6,039 475,123 SH   SOLE   439,573 0 35,550
Smith Micro Software COM 832154207 1,599 358,629 SH   SOLE   331,559 0 27,070
Standard Motor COM 853666105 936 22,710 SH   SOLE   14,130 0 8,580
Sterling Construction Co Inc COM 859241101 4,303 410,959 SH   SOLE   357,439 0 53,520
Super Micro Computer, Inc COM 86800U104 1,243 43,770 SH   SOLE   27,220 0 16,550
Sykes Enterprises COM 871237103 646 23,360 SH   SOLE   14,540 0 8,820
Textainer Group Holdings COM G8766E109 1,013 123,830 SH   SOLE   77,040 0 46,790
Tristate Capital Hlds COM 89678F100 725 46,180 SH   SOLE   28,700 0 17,480
Triumph Bancorp COM 89679E300 408 16,800 SH   SOLE   10,450 0 6,350
TrueBlue Inc COM 89785X101 608 39,820 SH   SOLE   24,770 0 15,050
Twin Disc Inc COM 901476101 4,492 810,890 SH   SOLE   734,470 0 76,420
Ultra Clean Holdings COM 90385V107 11,299 499,289 SH   SOLE   442,699 0 56,590
Unique Fabricating COM 90915J103 2,837 889,415 SH   SOLE   822,815 0 66,600
Universal Electronics Inc COM 913483103 6,877 146,873 SH   SOLE   128,833 0 18,040
Univeste Financial Corp COM 915271100 490 30,390 SH   SOLE   18,910 0 11,480
Veritex Holdings COM 923451108 548 30,985 SH   SOLE   19,280 0 11,705
Wabash National Corp COM 929566107 982 92,490 SH   SOLE   57,560 0 34,930
West Bancorporation COM 95123P106 5,341 305,380 SH   SOLE   270,100 0 35,280
ZAGG Inc COM 98884U108 4,581 1,459,034 SH   SOLE   1,349,384 0 109,650
Zovio COM 98979V102 1,994 651,560 SH   SOLE   602,690 0 48,870