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 7,646 4,394,499 SH   SOLE 0 2,628,508 0 1,765,991
Acacia Research Corp. COMMON 003881307 13,432 2,952,115 SH   SOLE 0 1,215,774 0 1,736,341
Accenture plc COMMON G1151C101 4,565 33,794 SH   SOLE 0 15,579 0 18,215
Acuity Brands COMMON 00508Y102 1,504 8,780 SH   SOLE 0 4,644 0 4,136
Adtalem Global Education, Inc. COMMON 00737L103 72,583 2,024,619 SH   SOLE 0 1,956,104 0 68,515
AFLAC, Inc. COMMON 001055102 128,644 1,580,593 SH   SOLE 0 1,574,579 0 6,014
American Electric Technologies, Inc. COMMON 025576109 2,525 1,582,198 SH   SOLE 0 985,032 0 597,166
American Express Co. COMMON 025816109 80,837 893,621 SH   SOLE 0 367,078 0 526,543
Anixter Intl, Inc. COMMON 035290105 103,492 1,217,558 SH   SOLE 0 1,153,795 0 63,763
Apache Corp. COMMON 037411105 4,874 106,420 SH   SOLE 0 106,420 0 0
Aspen Aerogels Inc. COMMON 04523Y105 4,765 1,095,517 SH   SOLE 0 662,773 0 432,744
AstroNova, Inc. COMMON 04638F108 9,726 748,142 SH   SOLE 0 542,170 0 205,972
Atlas Financial Holdings, Inc. COMMON G06207115 21,899 1,158,673 SH   SOLE 0 1,000,172 0 158,501
Autobytel Inc. COMMON 05275N205 2,458 356,728 SH   SOLE 0 210,843 0 145,885
AXT Inc. COMMON 00246W103 3,573 390,513 SH   SOLE 0 229,033 0 161,480
Baidu, Inc. ADR ADR 056752108 270,422 1,091,778 SH   SOLE 0 654,586 0 437,192
Ballantyne Strong, Inc. COMMON 058516105 16,158 2,648,899 SH   SOLE 0 2,175,713 0 473,186
Banco Santander-Chile ADR ADR 05965X109 23,357 786,160 SH   SOLE 0 360,400 0 425,760
Bank of New York Mellon Corp. COMMON 064058100 5,474 103,249 SH   SOLE 0 103,249 0 0
Barrick Gold Corp. COMMON 067901108 9,613 597,450 SH   SOLE 0 597,450 0 0
Berkshire Hathaway Inc. COMMON 084670702 100,579 548,655 SH   SOLE 0 251,432 0 297,223
Bio-Rad Laboratories, Inc. COMMON 090572207 116,498 524,244 SH   SOLE 0 490,736 0 33,508
Blackstone Group L.P. COMMON 09253U108 32,643 978,206 SH   SOLE 0 974,351 0 3,855
BOK Financial Corp. COMMON 05561Q201 43,124 484,109 SH   SOLE 0 457,515 0 26,594
BorgWarner, Inc. COMMON 099724106 88,172 1,721,109 SH   SOLE 0 1,714,024 0 7,085
Brady Corp. COMMON 104674106 89,935 2,369,820 SH   SOLE 0 2,192,828 0 176,992
Brink's Co. COMMON 109696104 26,016 308,801 SH   SOLE 0 256,831 0 51,970
Bristow Group, Inc. COMMON 110394103 98,445 10,528,836 SH   SOLE 0 10,133,930 0 394,906
Capital Southwest Corp. COMMON 140501107 16,509 963,726 SH   SOLE 0 817,887 0 145,839
Cardinal Health, Inc. COMMON 14149Y108 49,232 735,687 SH   SOLE 0 732,645 0 3,042
Cars.com Inc. COMMON 14575E105 7,452 280,059 SH   SOLE 0 235,466 0 44,593
CBRE Group, Inc. COMMON 12504L109 108,796 2,872,129 SH   SOLE 0 2,802,796 0 69,333
CBS Corp. COMMON 124857202 51,058 880,306 SH   SOLE 0 876,673 0 3,633
Century Casinos, Inc. COMMON 156492100 27,600 3,361,757 SH   SOLE 0 2,862,609 0 499,148
Charles River Laboratories Intl, Inc. COMMON 159864107 181,481 1,680,066 SH   SOLE 0 1,577,827 0 102,239
China Mobile Ltd. ADR ADR 16941M109 58,426 1,155,345 SH   SOLE 0 850,797 0 304,548
CME Group Inc. COMMON 12572Q105 10,671 78,646 SH   SOLE 0 38,056 0 40,590
Coach, Inc. COMMON 189754104 8,489 210,757 SH   SOLE 0 97,977 0 112,780
Contango Oil & Gas Co. COMMON 21075N204 16,778 3,335,528 SH   SOLE 0 3,111,740 0 223,788
Core Laboratories N.V. COMMON N22717107 44,660 452,481 SH   SOLE 0 316,049 0 136,432
Costco Wholesale Corp. COMMON 22160K105 37,556 228,597 SH   SOLE 0 99,549 0 129,048
Cowen Inc. COMMON 223622606 28,520 1,602,274 SH   SOLE 0 1,365,439 0 236,835
CPI Aerostructures, Inc. COMMON 125919308 6,398 684,236 SH   SOLE 0 409,928 0 274,308
CRA International, Inc. COMMON 12618T105 6,281 152,998 SH   SOLE 0 152,998 0 0
Cumberland Pharmaceuticals, Inc. COMMON 230770109 6,263 887,144 SH   SOLE 0 533,164 0 353,980
CVS Health Corp. COMMON 126650100 9,425 115,894 SH   SOLE 0 115,894 0 0
Digirad Corp. COMMON 253827109 2,201 638,042 SH   SOLE 0 387,341 0 250,701
Discover Financial Services COMMON 254709108 17,012 263,838 SH   SOLE 0 117,899 0 145,939
Dover Motorsports, Inc. COMMON 260174107 1,184 577,594 SH   SOLE 0 344,142 0 233,452
Dun & Bradstreet Corp. COMMON 26483E100 94,196 809,178 SH   SOLE 0 748,632 0 60,546
Edgewater Technology Inc. COMMON 280358102 12,492 1,916,003 SH   SOLE 0 1,492,281 0 423,722
Electro Scientific Industries, Inc. COMMON 285229100 2,882 207,062 SH   SOLE 0 207,062 0 0
Emcore Corporation COMMON 290846203 3,715 453,060 SH   SOLE 0 265,342 0 187,718
EOG Resources Inc. COMMON 26875P101 36,706 379,433 SH   SOLE 0 279,180 0 100,253
Expeditors Intl of Washington COMMON 302130109 1,439 24,041 SH   SOLE 0 11,250 0 12,791
Exxon Mobil Corp. COMMON 30231G102 7,413 90,422 SH   SOLE 0 90,422 0 0
F5 Networks, Inc. COMMON 315616102 380 3,152 SH   SOLE 0 3,152 0 0
Factset Research Systems, Inc. COMMON 303075105 6,100 33,870 SH   SOLE 0 13,114 0 20,756
Fair Isaac Corp. COMMON 303250104 44,275 315,124 SH   SOLE 0 282,814 0 32,310
Fastenal Co. COMMON 311900104 251 5,505 SH   SOLE 0 5,505 0 0
First American Financial Corp. COMMON 31847R102 260,522 5,213,571 SH   SOLE 0 5,023,703 0 189,868
Fluor Corp. COMMON 343412102 46,945 1,115,084 SH   SOLE 0 618,550 0 496,534
Franklin Resources, Inc. COMMON 354613101 13,168 295,853 SH   SOLE 0 294,628 0 1,225
Gaia, Inc. COMMON 36269P104 5,435 452,893 SH   SOLE 0 452,893 0 0
Gilead Sciences, Inc. COMMON 375558103 175,768 2,169,437 SH   SOLE 0 990,401 0 1,179,036
GlassBridge Enterprises Inc. COMMON 377185103 1,969 989,600 SH   SOLE 0 796,612 0 192,988
GlaxoSmithKline plc ADR ADR 37733W105 68,406 1,684,870 SH   SOLE 0 1,018,078 0 666,792
Glu Mobile Inc. COMMON 379890106 6,692 1,779,788 SH   SOLE 0 1,779,788 0 0
Goldman Sachs Group, Inc. COMMON 38141G104 5,881 24,795 SH   SOLE 0 24,795 0 0
Graham Holdings Co. COMMON 384637104 11,298 19,310 SH   SOLE 0 18,680 0 630
Green Brick Partners Inc. COMMON 392709101 8,282 836,548 SH   SOLE 0 836,548 0 0
GSI Technology Inc. COMMON 36241U106 13,462 1,851,708 SH   SOLE 0 1,569,429 0 282,279
Gulf Island Fabrication, Inc. COMMON 402307102 7,640 601,602 SH   SOLE 0 601,602 0 0
Hanger, Inc. COMMON 41043F208 4,812 437,840 SH   SOLE 0 437,840 0 0
Horace Mann Educators Corp. COMMON 440327104 10,938 277,963 SH   SOLE 0 232,158 0 45,805
Houlihan Lokey, Inc. COMMON 441593100 59,990 1,533,104 SH   SOLE 0 1,525,412 0 7,692
IDEX Corp. COMMON 45167R104 18,289 150,567 SH   SOLE 0 124,920 0 25,647
Illinois Tool Works, Inc. COMMON 452308109 71,280 481,754 SH   SOLE 0 479,827 0 1,927
IntercontinentalExchange, Inc. COMMON 45866F104 1,539 22,403 SH   SOLE 0 10,508 0 11,895
InterDigital Inc. COMMON 45867G101 2,590 35,122 SH   SOLE 0 16,214 0 18,908
Interface, Inc. COMMON 458665304 22,393 1,022,517 SH   SOLE 0 849,547 0 172,970
International Business Machines Corp. COMMON 459200101 6,814 46,964 SH   SOLE 0 46,964 0 0
International Speedway Corp. COMMON 460335201 88,472 2,457,565 SH   SOLE 0 2,316,565 0 141,000
Interpublic Group of Cos., Inc. COMMON 460690100 160,116 7,701,574 SH   SOLE 0 7,552,143 0 149,431
ISHARES MSCI ACWI EX US ETF ETF 464288240 12,163 251,560 SH   SOLE 0 48,051 0 203,509
iShares Russell 2000 ETF ETF 464287655 5,675 38,300 SH   SOLE 0 38,300 0 0
iShares Russell Midcap ETF ETF 464287499 719 3,649 SH   SOLE 0 3,649 0 0
J.M. Smucker Co. COMMON 832696405 142,360 1,356,718 SH   SOLE 0 1,336,767 0 19,951
Janus Henderson Group plc ORD SHS G4474Y214 90,269 2,590,958 SH   SOLE 0 2,419,665 0 171,293
JLL COMMON 48020Q107 157,692 1,276,857 SH   SOLE 0 1,211,741 0 65,116
Johnson & Johnson COMMON 478160104 128,617 989,289 SH   SOLE 0 490,377 0 498,912
JPMorgan Chase & Co. COMMON 46625H100 6,895 72,190 SH   SOLE 0 72,190 0 0
Kennametal, Inc. COMMON 489170100 221,450 5,489,586 SH   SOLE 0 5,215,557 0 274,029
Keysight Technologies, Inc. COMMON 49338L103 194,688 4,673,259 SH   SOLE 0 4,466,663 0 206,596
Kindred Biosciences, Inc. COMMON 494577109 18,370 2,340,123 SH   SOLE 0 1,981,280 0 358,843
KKR & Co. L.P. COMMON 48248M102 172,339 8,477,064 SH   SOLE 0 8,468,238 0 8,826
Laboratory Corp. of America Holdings COMMON 50540R409 188,409 1,247,988 SH   SOLE 0 1,227,796 0 20,192
Landec Corp. COMMON 514766104 4,885 377,245 SH   SOLE 0 319,845 0 57,400
Lazard Ltd. COMMON G54050102 247,521 5,473,715 SH   SOLE 0 5,267,697 0 206,018
Littelfuse, Inc. COMMON 537008104 58,285 297,555 SH   SOLE 0 268,510 0 29,045
Lockheed Martin Corp. COMMON 539830109 9,407 30,317 SH   SOLE 0 30,317 0 0
Manning & Napier, Inc. COMMON 56382Q102 4,341 1,099,079 SH   SOLE 0 914,539 0 184,540
MasterCard Inc. COMMON 57636Q104 1,053 7,461 SH   SOLE 0 2,134 0 5,327
Mattel, Inc. COMMON 577081102 128,695 8,313,633 SH   SOLE 0 8,161,411 0 152,222
Matthews Intl Corp. COMMON 577128101 10,790 173,333 SH   SOLE 0 145,308 0 28,025
MB Financial, Inc. COMMON 55264U108 5,353 118,896 SH   SOLE 0 118,896 0 0
Meredith Corp. COMMON 589433101 79,996 1,441,369 SH   SOLE 0 1,353,740 0 87,629
Microsoft Corp. COMMON 594918104 203,696 2,734,536 SH   SOLE 0 1,281,285 0 1,453,251
Mitcham Industries, Inc. COMMON 606501104 10,432 2,989,080 SH   SOLE 0 2,512,380 0 476,700
Mohawk Industries, Inc. COMMON 608190104 53,206 214,967 SH   SOLE 0 205,707 0 9,260
Mosaic Co. COMMON 61945C103 6,104 282,737 SH   SOLE 0 282,737 0 0
Movado Group Inc. COMMON 624580106 6,208 221,700 SH   SOLE 0 221,700 0 0
MSG Networks, Inc. COMMON 553573106 162,016 7,642,286 SH   SOLE 0 7,349,213 0 293,073
MTS Systems Corp. COMMON 553777103 92,840 1,736,946 SH   SOLE 0 1,590,155 0 146,791
National Oilwell Varco COMMON 637071101 77,561 2,170,763 SH   SOLE 0 2,162,748 0 8,015
Nielsen Holdings plc COMMON G6518L108 108,420 2,615,673 SH   SOLE 0 2,608,893 0 6,780
Nokia Corp. ADR ADR 654902204 196,213 32,811,545 SH   SOLE 0 20,612,734 0 12,198,811
Nordstrom, Inc. COMMON 655664100 56,266 1,193,349 SH   SOLE 0 1,186,386 0 6,963
Northern Trust Corp. COMMON 665859104 175,419 1,908,175 SH   SOLE 0 1,890,512 0 17,663
Novartis AG ADR ADR 66987V109 4,953 57,697 SH   SOLE 0 50,186 0 7,511
NTT Docomo Inc. ADR ADR 62942M201 1,753 76,913 SH   SOLE 0 76,913 0 0
Occidental Petroleum Corp. COMMON 674599105 34,927 543,942 SH   SOLE 0 331,175 0 212,767
Omnicom Group, Inc. COMMON 681919106 80,916 1,092,423 SH   SOLE 0 1,088,267 0 4,156
Oracle Corp. COMMON 68389X105 9,809 202,878 SH   SOLE 0 202,878 0 0
ORBCOMM, Inc. COMMON 68555P100 21,668 2,069,524 SH   SOLE 0 1,763,787 0 305,737
Orion Energy Systems, Inc. COMMON 686275108 5,631 5,027,415 SH   SOLE 0 4,201,180 0 826,235
Pandora Media, Inc. COMMON 698354107 7,665 995,427 SH   SOLE 0 494,287 0 501,140
PCTEL, Inc. COMMON 69325Q105 15,606 2,477,204 SH   SOLE 0 2,109,204 0 368,000
Pendrell Corp. COMMON 70686R302 7,128 1,043,632 SH   SOLE 0 1,043,632 0 0
Perceptron, Inc. COMMON 71361F100 8,868 1,123,968 SH   SOLE 0 668,381 0 455,587
Philip Morris Intl, Inc. COMMON 718172109 96,584 870,047 SH   SOLE 0 536,765 0 333,282
Pioneer Natural Resources Co COMMON 723787107 22,416 151,931 SH   SOLE 0 90,371 0 61,560
Progressive Corp. COMMON 743315103 54,626 1,128,176 SH   SOLE 0 1,123,814 0 4,362
Quest Diagnostics Inc. COMMON 74834L100 12,533 133,840 SH   SOLE 0 61,558 0 72,282
RealNetworks, Inc. COMMON 75605L708 33,490 6,977,136 SH   SOLE 0 5,915,305 0 1,061,831
Rosetta Stone Inc. COMMON 777780107 38,710 3,791,336 SH   SOLE 0 3,211,855 0 579,481
Royal Caribbean Cruises Ltd. COMMON V7780T103 96,407 813,289 SH   SOLE 0 786,673 0 26,616
Rubicon Technology, Inc. COMMON 78112T206 1,470 177,992 SH   SOLE 0 103,984 0 74,008
Safeguard Scientifics Inc. COMMON 786449207 16,883 1,264,609 SH   SOLE 0 1,072,009 0 192,600
Sanofi-Aventis ADR 80105N105 886 17,790 SH   SOLE 0 17,790 0 0
Santander Mexico Financial Group ADR ADR 40053C105 6,952 688,950 SH   SOLE 0 334,756 0 354,194
Schlumberger Ltd. COMMON 806857108 33,060 473,917 SH   SOLE 0 218,011 0 255,906
SeaChange Intl, Inc. COMMON 811699107 11,753 4,289,425 SH   SOLE 0 3,633,737 0 655,688
Sempra Energy COMMON 816851109 30,311 265,582 SH   SOLE 0 118,372 0 147,210
Simpson Manufacturing Co., Inc. COMMON 829073105 86,771 1,769,398 SH   SOLE 0 1,644,395 0 125,003
Snap-On, Inc. COMMON 833034101 113,849 764,034 SH   SOLE 0 750,048 0 13,986
Sotheby's COMMON 835898107 20,042 434,663 SH   SOLE 0 391,775 0 42,888
Southern Co. COMMON 842587107 42,371 862,246 SH   SOLE 0 398,221 0 464,025
Spartan Motors Inc. COMMON 846819100 6,976 631,295 SH   SOLE 0 537,936 0 93,359
Stanley Black & Decker, Inc. COMMON 854502101 94,670 627,079 SH   SOLE 0 624,694 0 2,385
Strattec Security Corp. COMMON 863111100 9,560 233,735 SH   SOLE 0 233,735 0 0
Synacor, Inc. COMMON 871561106 7,951 2,944,912 SH   SOLE 0 2,944,912 0 0
T. Rowe Price Group, Inc. COMMON 74144T108 33,337 367,760 SH   SOLE 0 366,280 0 1,480
Team, Inc. COMMON 878155100 29,626 2,219,202 SH   SOLE 0 1,911,772 0 307,430
TechTarget, Inc. COMMON 87874R100 10,278 860,767 SH   SOLE 0 860,767 0 0
TEGNA, Inc. COMMON 87901J105 81,379 6,104,953 SH   SOLE 0 5,815,968 0 288,985
Tejon Ranch Co. COMMON 879080109 3,799 180,027 SH   SOLE 0 180,027 0 0
Telenav Inc. COMMON 879455103 18,909 2,977,736 SH   SOLE 0 2,526,231 0 451,505
Tenaris ADR ADR 88031M109 17,830 629,830 SH   SOLE 0 555,103 0 74,727
The Madison Square Garden Co. COMMON 55825T103 80,875 377,743 SH   SOLE 0 351,536 0 26,207
Thermo Fisher Scientific, Inc. COMMON 883556102 72,713 384,317 SH   SOLE 0 382,813 0 1,504
Tractor Supply COMMON 892356106 5,791 91,493 SH   SOLE 0 42,531 0 48,962
TripAdvisor Inc COMMON 896945201 3,197 78,870 SH   SOLE 0 36,438 0 42,432
U.S. Bancorp COMMON 902973304 20,225 377,409 SH   SOLE 0 174,187 0 203,222
U.S. Silica Holdings, Inc. COMMON 90346E103 148,541 4,780,845 SH   SOLE 0 4,502,619 0 278,226
Vanguard FTSE Developed ETF ETF 921943858 38,031 876,082 SH   SOLE 0 858,034 0 18,048
Vanguard S&P 500 ETF ETF 922908363 4,913 21,290 SH   SOLE 0 0 0 21,290
Vanguard Total World Stock Index Fd (ETF) ETF 922042742 3,361 47,532 SH   SOLE 0 47,532 0 0
Verizon Communications Inc. COMMON 92343V104 38,644 780,843 SH   SOLE 0 360,579 0 420,264
Viacom, Inc. COMMON 92553P201 73,541 2,641,575 SH   SOLE 0 2,575,919 0 65,656
Vical Inc. COMMON 925602203 1,397 582,244 SH   SOLE 0 355,083 0 227,161
Western Union Co. COMMON 959802109 98,035 5,106,000 SH   SOLE 0 5,031,953 0 74,047
Willis Towers Watson plc COMMON G96629103 76,100 493,420 SH   SOLE 0 491,492 0 1,928
XO Group Inc. COMMON 983772104 19,583 995,567 SH   SOLE 0 851,921 0 143,646
Zebra Technologies Corp. COMMON 989207105 173,419 1,597,152 SH   SOLE 0 1,491,172 0 105,980
Zimmer Biomet Holdings, Inc. COMMON 98956P102 123,818 1,057,463 SH   SOLE 0 1,053,507 0 3,956