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
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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
180 Degree Capital Corp COMMON 68235B109 10,285 5,220,715 SH   SOLE 0 3,475,784 0 1,744,931
Acacia Research Corp. COMMON 003881307 11,359 2,804,686 SH   SOLE 0 1,129,840 0 1,674,846
Accenture plc COMMON G1151C101 3,119 20,374 SH   SOLE 0 9,642 0 10,732
Acuity Brands COMMON 00508Y102 1,581 8,984 SH   SOLE 0 4,848 0 4,136
Adtalem Global Education, Inc. COMMON 00737L103 79,580 1,892,503 SH   SOLE 0 1,823,988 0 68,515
AFLAC, Inc. COMMON 001055102 116,659 1,328,988 SH   SOLE 0 1,322,974 0 6,014
American Electric Technologies, Inc. COMMON 025576109 2,351 1,567,506 SH   SOLE 0 861,640 0 705,866
American Express Co. COMMON 025816109 90,893 915,248 SH   SOLE 0 388,705 0 526,543
Anixter Intl, Inc. COMMON 035290105 90,598 1,192,076 SH   SOLE 0 1,127,913 0 64,163
Apache Corp. COMMON 037411105 4,491 106,376 SH   SOLE 0 106,376 0 0
Aspen Aerogels Inc. COMMON 04523Y105 5,324 1,090,898 SH   SOLE 0 658,154 0 432,744
AstroNova, Inc. COMMON 04638F108 10,329 745,767 SH   SOLE 0 539,795 0 205,972
Atlas Financial Holdings, Inc. COMMON G06207115 24,183 1,176,802 SH   SOLE 0 1,007,956 0 168,846
AutoWeb Inc. COMMON 05335B100 3,665 406,783 SH   SOLE 0 186,198 0 220,585
AXT Inc. COMMON 00246W103 2,148 246,890 SH   SOLE 0 112,848 0 134,042
Baidu, Inc. ADR ADR 056752108 277,755 1,185,923 SH   SOLE 0 744,773 0 441,150
Ballantyne Strong, Inc. COMMON 058516105 13,431 2,888,434 SH   SOLE 0 2,415,248 0 473,186
Banco Santander-Chile ADR ADR 05965X109 26,423 845,001 SH   SOLE 0 412,179 0 432,822
Bank of New York Mellon Corp. COMMON 064058100 5,560 103,226 SH   SOLE 0 103,226 0 0
Barrick Gold Corp. COMMON 067901108 9,989 690,291 SH   SOLE 0 690,291 0 0
Berkshire Hathaway Inc. COMMON 084670702 111,481 562,411 SH   SOLE 0 265,188 0 297,223
Bio-Rad Laboratories, Inc. COMMON 090572207 63,849 267,520 SH   SOLE 0 242,205 0 25,315
Blackstone Group L.P. COMMON 09253U108 31,303 977,615 SH   SOLE 0 973,760 0 3,855
BOK Financial Corp. COMMON 05561Q201 43,147 467,367 SH   SOLE 0 440,773 0 26,594
BorgWarner, Inc. COMMON 099724106 81,256 1,590,457 SH   SOLE 0 1,583,372 0 7,085
Brady Corp. COMMON 104674106 87,102 2,298,208 SH   SOLE 0 2,122,216 0 175,992
Brink's Co. COMMON 109696104 22,074 280,485 SH   SOLE 0 228,917 0 51,568
Bristow Group, Inc. COMMON 110394103 138,251 10,263,651 SH   SOLE 0 9,858,205 0 405,446
Capital Southwest Corp. COMMON 140501107 16,696 1,008,803 SH   SOLE 0 862,064 0 146,739
Cardinal Health, Inc. COMMON 14149Y108 52,803 861,809 SH   SOLE 0 857,759 0 4,050
Cars.com Inc. COMMON 14575E105 7,397 256,499 SH   SOLE 0 211,906 0 44,593
CBRE Group, Inc. COMMON 12504L109 113,426 2,618,932 SH   SOLE 0 2,553,899 0 65,033
CBS Corp. COMMON 124857202 51,932 880,199 SH   SOLE 0 876,566 0 3,633
Century Casinos, Inc. COMMON 156492100 29,275 3,206,500 SH   SOLE 0 2,713,067 0 493,433
Charles River Laboratories Intl, Inc. COMMON 159864107 148,107 1,353,195 SH   SOLE 0 1,266,720 0 86,475
China Mobile Ltd. ADR ADR 16941M109 58,393 1,155,391 SH   SOLE 0 850,843 0 304,548
CME Group Inc. COMMON 12572Q105 4,368 29,910 SH   SOLE 0 14,147 0 15,763
Contango Oil & Gas Co. COMMON 21075N204 14,899 3,163,269 SH   SOLE 0 2,939,481 0 223,788
Core Laboratories N.V. COMMON N22717107 54,129 494,100 SH   SOLE 0 357,066 0 137,034
Costco Wholesale Corp. COMMON 22160K105 43,648 234,513 SH   SOLE 0 105,465 0 129,048
Cowen Inc. COMMON 223622606 29,062 2,129,096 SH   SOLE 0 1,809,351 0 319,745
CPI Aerostructures, Inc. COMMON 125919308 5,715 638,543 SH   SOLE 0 364,235 0 274,308
CRA International, Inc. COMMON 12618T105 7,304 162,498 SH   SOLE 0 162,498 0 0
Cumberland Pharmaceuticals, Inc. COMMON 230770109 6,698 910,076 SH   SOLE 0 543,850 0 366,226
Digirad Corp. COMMON 253827109 3,149 1,222,819 SH   SOLE 0 606,557 0 616,262
Discover Financial Services COMMON 254709108 22,248 289,240 SH   SOLE 0 137,014 0 152,226
Dover Motorsports, Inc. COMMON 260174107 948 486,009 SH   SOLE 0 252,557 0 233,452
Dun & Bradstreet Corp. COMMON 26483E100 92,275 779,286 SH   SOLE 0 718,740 0 60,546
Edgewater Technology Inc. COMMON 280358102 12,186 1,952,908 SH   SOLE 0 1,529,186 0 423,722
Emcore Corporation COMMON 290846203 9,949 1,542,419 SH   SOLE 0 1,309,501 0 232,918
EOG Resources Inc. COMMON 26875P101 45,769 424,143 SH   SOLE 0 323,242 0 100,901
Expeditors Intl of Washington COMMON 302130109 4,912 75,937 SH   SOLE 0 36,475 0 39,462
Exxon Mobil Corp. COMMON 30231G102 7,560 90,385 SH   SOLE 0 90,385 0 0
F5 Networks, Inc. COMMON 315616102 414 3,152 SH   SOLE 0 3,152 0 0
Fair Isaac Corp. COMMON 303250104 41,780 272,713 SH   SOLE 0 240,403 0 32,310
Fastenal Co. COMMON 311900104 301 5,505 SH   SOLE 0 5,505 0 0
First American Financial Corp. COMMON 31847R102 265,577 4,739,053 SH   SOLE 0 4,549,929 0 189,124
Fluor Corp. COMMON 343412102 60,357 1,168,574 SH   SOLE 0 671,324 0 497,250
Foot Locker, Inc. COMMON 344849104 6,572 140,193 SH   SOLE 0 66,492 0 73,701
Gaia, Inc. COMMON 36269P104 4,642 374,393 SH   SOLE 0 374,393 0 0
Gilead Sciences, Inc. COMMON 375558103 160,211 2,236,337 SH   SOLE 0 1,057,301 0 1,179,036
GlassBridge Enterprises Inc. COMMON 377185103 919 988,549 SH   SOLE 0 795,561 0 192,988
GlaxoSmithKline plc ADR ADR 37733W105 63,124 1,779,641 SH   SOLE 0 1,048,659 0 730,982
Glu Mobile Inc. COMMON 379890106 6,527 1,793,088 SH   SOLE 0 1,793,088 0 0
Goldman Sachs Group, Inc. COMMON 38141G104 5,776 22,671 SH   SOLE 0 22,671 0 0
Graham Holdings Co. COMMON 384637104 1,858 3,327 SH   SOLE 0 2,697 0 630
Green Brick Partners Inc. COMMON 392709101 10,897 964,341 SH   SOLE 0 964,341 0 0
GSI Technology Inc. COMMON 36241U106 14,937 1,876,484 SH   SOLE 0 1,594,205 0 282,279
Gulf Island Fabrication, Inc. COMMON 402307102 7,254 540,319 SH   SOLE 0 540,319 0 0
Hanger, Inc. COMMON 41043F208 7,737 491,208 SH   SOLE 0 491,208 0 0
Horace Mann Educators Corp. COMMON 440327104 11,149 252,807 SH   SOLE 0 207,002 0 45,805
Houlihan Lokey, Inc. COMMON 441593100 69,646 1,533,036 SH   SOLE 0 1,525,344 0 7,692
IDEX Corp. COMMON 45167R104 10,022 75,942 SH   SOLE 0 61,610 0 14,332
Illinois Tool Works, Inc. COMMON 452308109 73,138 438,343 SH   SOLE 0 436,416 0 1,927
IntercontinentalExchange, Inc. COMMON 45866F104 20,910 296,345 SH   SOLE 0 140,529 0 155,816
Interface, Inc. COMMON 458665304 23,363 928,943 SH   SOLE 0 755,973 0 172,970
International Business Machines Corp. COMMON 459200101 7,202 46,946 SH   SOLE 0 46,946 0 0
International Speedway Corp. COMMON 460335201 79,436 1,993,379 SH   SOLE 0 1,868,294 0 125,085
Interpublic Group of Cos., Inc. COMMON 460690100 160,789 7,975,621 SH   SOLE 0 7,819,590 0 156,031
ISHARES MSCI ACWI EX US ETF ETF 464288240 15,075 301,792 SH   SOLE 0 98,283 0 203,509
iShares Russell 2000 ETF ETF 464287655 2,089 13,700 SH   SOLE 0 13,700 0 0
iShares Russell 2000V ETF ETF 464287630 6,013 47,818 SH   SOLE 0 47,818 0 0
J.M. Smucker Co. COMMON 832696405 200,223 1,611,582 SH   SOLE 0 1,588,126 0 23,456
Janus Henderson Group plc ORD SHS G4474Y214 96,818 2,530,520 SH   SOLE 0 2,358,127 0 172,393
JLL COMMON 48020Q107 167,693 1,125,985 SH   SOLE 0 1,062,469 0 63,516
Johnson & Johnson COMMON 478160104 141,512 1,012,823 SH   SOLE 0 513,911 0 498,912
JPMorgan Chase & Co. COMMON 46625H100 7,212 67,440 SH   SOLE 0 67,440 0 0
Kennametal, Inc. COMMON 489170100 251,230 5,189,629 SH   SOLE 0 4,915,600 0 274,029
Keysight Technologies, Inc. COMMON 49338L103 191,911 4,613,257 SH   SOLE 0 4,406,661 0 206,596
Kindred Biosciences, Inc. COMMON 494577109 18,480 1,955,552 SH   SOLE 0 1,668,888 0 286,664
KKR & Co. L.P. COMMON 48248M102 169,848 8,064,945 SH   SOLE 0 8,056,119 0 8,826
Laboratory Corp. of America Holdings COMMON 50540R409 195,019 1,222,610 SH   SOLE 0 1,202,618 0 19,992
Landec Corp. COMMON 514766104 4,652 369,233 SH   SOLE 0 309,933 0 59,300
Lazard Ltd. COMMON G54050102 251,782 4,795,854 SH   SOLE 0 4,593,258 0 202,596
Littelfuse, Inc. COMMON 537008104 51,022 257,920 SH   SOLE 0 229,575 0 28,345
Lockheed Martin Corp. COMMON 539830109 9,247 28,802 SH   SOLE 0 28,802 0 0
Manning & Napier, Inc. COMMON 56382Q102 3,470 963,858 SH   SOLE 0 785,983 0 177,875
MasterCard Inc. COMMON 57636Q104 1,129 7,461 SH   SOLE 0 2,134 0 5,327
Mattel, Inc. COMMON 577081102 140,744 9,151,114 SH   SOLE 0 8,983,656 0 167,458
Matthews Intl Corp. COMMON 577128101 8,312 157,426 SH   SOLE 0 129,401 0 28,025
MB Financial, Inc. COMMON 55264U108 5,489 123,296 SH   SOLE 0 123,296 0 0
Meredith Corp. COMMON 589433101 54,819 829,958 SH   SOLE 0 776,986 0 52,972
Methode Electronics Inc. COMMON 591520200 14,580 363,583 SH   SOLE 0 296,848 0 66,735
Microsoft Corp. COMMON 594918104 239,830 2,803,720 SH   SOLE 0 1,350,469 0 1,453,251
Mitcham Industries, Inc. COMMON 606501104 9,505 2,998,392 SH   SOLE 0 2,521,692 0 476,700
Mohawk Industries, Inc. COMMON 608190104 59,114 214,260 SH   SOLE 0 205,000 0 9,260
Mosaic Co. COMMON 61945C103 7,252 282,630 SH   SOLE 0 282,630 0 0
Movado Group Inc. COMMON 624580106 5,851 181,700 SH   SOLE 0 181,700 0 0
MSG Networks, Inc. COMMON 553573106 181,875 8,981,457 SH   SOLE 0 8,619,623 0 361,834
MTS Systems Corp. COMMON 553777103 90,216 1,680,002 SH   SOLE 0 1,527,092 0 152,910
National Oilwell Varco COMMON 637071101 75,862 2,106,100 SH   SOLE 0 2,098,085 0 8,015
Nielsen Holdings plc COMMON G6518L108 119,486 3,282,583 SH   SOLE 0 3,216,188 0 66,395
Nokia Corp. ADR ADR 654902204 112,799 24,205,746 SH   SOLE 0 16,230,861 0 7,974,885
Nordstrom, Inc. COMMON 655664100 61,741 1,303,102 SH   SOLE 0 1,295,329 0 7,773
Northern Trust Corp. COMMON 665859104 185,669 1,858,731 SH   SOLE 0 1,841,068 0 17,663
Novartis AG ADR ADR 66987V109 5,712 68,028 SH   SOLE 0 60,343 0 7,685
NTT Docomo Inc. ADR ADR 62942M201 1,829 76,950 SH   SOLE 0 76,950 0 0
Occidental Petroleum Corp. COMMON 674599105 43,044 584,359 SH   SOLE 0 371,065 0 213,294
Omnicom Group, Inc. COMMON 681919106 75,746 1,040,043 SH   SOLE 0 1,035,887 0 4,156
Oracle Corp. COMMON 68389X105 10,008 211,679 SH   SOLE 0 211,679 0 0
ORBCOMM, Inc. COMMON 68555P100 23,200 2,278,944 SH   SOLE 0 1,950,496 0 328,448
Orion Energy Systems, Inc. COMMON 686275108 4,635 5,267,011 SH   SOLE 0 4,440,776 0 826,235
Pandora Media, Inc. COMMON 698354107 4,922 1,021,135 SH   SOLE 0 519,995 0 501,140
PCTEL, Inc. COMMON 69325Q105 17,909 2,430,032 SH   SOLE 0 2,062,032 0 368,000
Perceptron, Inc. COMMON 71361F100 7,669 790,617 SH   SOLE 0 434,706 0 355,911
Philip Morris Intl, Inc. COMMON 718172109 112,271 1,062,666 SH   SOLE 0 688,300 0 374,366
Pioneer Natural Resources Co COMMON 723787107 53,461 309,292 SH   SOLE 0 206,929 0 102,363
Progressive Corp. COMMON 743315103 53,328 946,873 SH   SOLE 0 942,511 0 4,362
Pure Cycle Corp. COMMON 746228303 509 60,970 SH   SOLE 0 27,546 0 33,424
Quest Diagnostics Inc. COMMON 74834L100 24,439 248,132 SH   SOLE 0 119,054 0 129,078
RealNetworks, Inc. COMMON 75605L708 24,748 7,236,402 SH   SOLE 0 6,203,672 0 1,032,730
Rosetta Stone Inc. COMMON 777780107 38,404 3,079,704 SH   SOLE 0 2,570,058 0 509,646
Royal Caribbean Cruises Ltd. COMMON V7780T103 82,987 695,736 SH   SOLE 0 670,172 0 25,564
Rubicon Technology, Inc. COMMON 78112T206 1,459 182,827 SH   SOLE 0 83,619 0 99,208
Safeguard Scientifics Inc. COMMON 786449207 16,815 1,501,367 SH   SOLE 0 1,305,967 0 195,400
Sanofi-Aventis ADR 80105N105 765 17,790 SH   SOLE 0 17,790 0 0
Santander Mexico Financial Group ADR ADR 40053C105 5,459 746,773 SH   SOLE 0 385,803 0 360,970
Schlumberger Ltd. COMMON 806857108 81,326 1,206,793 SH   SOLE 0 560,993 0 645,800
SeaChange Intl, Inc. COMMON 811699107 11,517 2,930,417 SH   SOLE 0 2,510,052 0 420,365
Sempra Energy COMMON 816851109 29,139 272,533 SH   SOLE 0 125,323 0 147,210
Simpson Manufacturing Co., Inc. COMMON 829073105 98,777 1,720,558 SH   SOLE 0 1,597,055 0 123,503
Snap-On, Inc. COMMON 833034101 135,395 776,792 SH   SOLE 0 761,439 0 15,353
Sotheby's COMMON 835898107 21,642 419,425 SH   SOLE 0 376,537 0 42,888
Southern Co. COMMON 842587107 42,548 884,757 SH   SOLE 0 420,732 0 464,025
Spartan Motors Inc. COMMON 846819100 5,517 350,295 SH   SOLE 0 289,469 0 60,826
Stanley Black & Decker, Inc. COMMON 854502101 98,886 582,745 SH   SOLE 0 580,360 0 2,385
Strattec Security Corp. COMMON 863111100 12,040 276,457 SH   SOLE 0 276,457 0 0
Synacor, Inc. COMMON 871561106 8,689 3,777,912 SH   SOLE 0 3,777,912 0 0
T. Rowe Price Group, Inc. COMMON 74144T108 35,201 335,472 SH   SOLE 0 334,293 0 1,179
Tapestry, Inc. COMMON 876030107 9,602 217,101 SH   SOLE 0 104,321 0 112,780
Team, Inc. COMMON 878155100 34,621 2,323,566 SH   SOLE 0 1,975,362 0 348,204
TechTarget, Inc. COMMON 87874R100 10,169 730,560 SH   SOLE 0 730,560 0 0
TEGNA, Inc. COMMON 87901J105 105,611 7,500,773 SH   SOLE 0 7,186,371 0 314,402
Tejon Ranch Co. COMMON 879080109 11,745 565,739 SH   SOLE 0 543,639 0 22,100
Telenav Inc. COMMON 879455103 19,854 3,609,773 SH   SOLE 0 3,112,968 0 496,805
Tenaris ADR ADR 88031M109 25,319 794,700 SH   SOLE 0 687,199 0 107,501
The Madison Square Garden Co. COMMON 55825T103 66,111 313,545 SH   SOLE 0 287,338 0 26,207
Thermo Fisher Scientific, Inc. COMMON 883556102 70,435 370,944 SH   SOLE 0 369,440 0 1,504
Tractor Supply COMMON 892356106 7,014 93,836 SH   SOLE 0 44,874 0 48,962
TripAdvisor Inc COMMON 896945201 2,744 79,628 SH   SOLE 0 37,196 0 42,432
U.S. Bancorp COMMON 902973304 20,776 387,748 SH   SOLE 0 184,526 0 203,222
U.S. Silica Holdings, Inc. COMMON 90346E103 159,544 4,899,994 SH   SOLE 0 4,612,386 0 287,608
Vanguard FTSE Developed ETF ETF 921943858 48,341 1,077,603 SH   SOLE 0 1,059,555 0 18,048
Vanguard Total World Stock Index Fd (ETF) ETF 922042742 3,055 41,144 SH   SOLE 0 41,144 0 0
Verizon Communications Inc. COMMON 92343V104 42,453 802,066 SH   SOLE 0 381,802 0 420,264
Viacom, Inc. COMMON 92553P201 104,668 3,397,206 SH   SOLE 0 3,303,350 0 93,856
Vical Inc. COMMON 925602203 1,167 637,913 SH   SOLE 0 339,252 0 298,661
Western Union Co. COMMON 959802109 90,606 4,766,217 SH   SOLE 0 4,692,170 0 74,047
Willis Towers Watson plc COMMON G96629103 62,048 411,762 SH   SOLE 0 409,937 0 1,825
XO Group Inc. COMMON 983772104 17,579 952,279 SH   SOLE 0 808,633 0 143,646
Zebra Technologies Corp. COMMON 989207105 155,007 1,493,325 SH   SOLE 0 1,387,345 0 105,980
Zimmer Biomet Holdings, Inc. COMMON 98956P102 121,330 1,005,470 SH   SOLE 0 1,001,514 0 3,956