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 6,875 4,244,134 SH   SOLE 0 2,586,456 0 1,657,678
Acacia Research Corp. COMMON 003881307 13,996 3,413,758 SH   SOLE 0 1,436,773 0 1,976,985
Accenture plc COMMON G1151C101 4,005 32,379 SH   SOLE 0 14,164 0 18,215
Acuity Brands COMMON 00508Y102 1,725 8,486 SH   SOLE 0 4,350 0 4,136
Adtalem Global Education, Inc. COMMON 00737L103 78,339 2,064,263 SH   SOLE 0 1,995,648 0 68,615
AFLAC, Inc. COMMON 001055102 123,341 1,587,803 SH   SOLE 0 1,581,789 0 6,014
American Electric Technologies, Inc. COMMON 025576109 2,517 1,422,211 SH   SOLE 0 856,645 0 565,566
American Express Co. COMMON 025816109 72,468 860,258 SH   SOLE 0 333,715 0 526,543
Anixter Intl, Inc. COMMON 035290105 107,982 1,380,841 SH   SOLE 0 1,315,678 0 65,163
Apache Corp. COMMON 037411105 5,103 106,476 SH   SOLE 0 106,476 0 0
Aspen Aerogels Inc. COMMON 04523Y105 4,868 1,093,997 SH   SOLE 0 666,153 0 427,844
AstroNova, Inc. COMMON 04638F108 6,554 508,077 SH   SOLE 0 302,105 0 205,972
Atlas Financial Holdings, Inc. COMMON G06207115 16,995 1,140,596 SH   SOLE 0 987,895 0 152,701
Autobytel Inc. COMMON 05275N205 2,659 210,872 SH   SOLE 0 123,887 0 86,985
AXT Inc. COMMON 00246W103 4,079 642,318 SH   SOLE 0 385,938 0 256,380
Baidu, Inc. ADR ADR 056752108 214,361 1,198,487 SH   SOLE 0 682,006 0 516,481
Ballantyne Strong, Inc. COMMON 058516105 14,267 2,129,363 SH   SOLE 0 1,656,177 0 473,186
Banco Santander-Chile ADR ADR 05965X109 22,747 895,203 SH   SOLE 0 398,582 0 496,621
Bank of New York Mellon Corp. COMMON 064058100 5,757 112,837 SH   SOLE 0 112,837 0 0
Barrick Gold Corp. COMMON 067901108 7,280 457,601 SH   SOLE 0 457,601 0 0
Bed Bath & Beyond Inc. COMMON 075896100 2,954 97,171 SH   SOLE 0 97,171 0 0
Berkshire Hathaway Inc. COMMON 084670702 89,231 526,840 SH   SOLE 0 229,617 0 297,223
Bio-Rad Laboratories, Inc. COMMON 090572207 129,956 574,237 SH   SOLE 0 538,646 0 35,591
Blackstone Group L.P. COMMON 09253U108 40,793 1,223,189 SH   SOLE 0 1,218,219 0 4,970
BOK Financial Corp. COMMON 05561Q201 40,389 480,080 SH   SOLE 0 454,186 0 25,894
BorgWarner, Inc. COMMON 099724106 73,181 1,727,591 SH   SOLE 0 1,720,506 0 7,085
Brady Corp. COMMON 104674106 80,155 2,364,465 SH   SOLE 0 2,199,908 0 164,557
Brink's Co. COMMON 109696104 28,936 431,882 SH   SOLE 0 360,100 0 71,782
Bristow Group, Inc. COMMON 110394103 78,016 10,198,235 SH   SOLE 0 9,806,029 0 392,206
Capital Southwest Corp. COMMON 140501107 15,303 951,668 SH   SOLE 0 806,729 0 144,939
Cardinal Health, Inc. COMMON 14149Y108 51,542 661,475 SH   SOLE 0 658,538 0 2,937
Cars.com Inc. COMMON 14575E105 9,046 339,686 SH   SOLE 0 282,794 0 56,892
CBRE Group, Inc. COMMON 12504L109 125,744 3,454,514 SH   SOLE 0 3,376,571 0 77,943
CBS Corp. COMMON 124857202 50,509 791,924 SH   SOLE 0 788,797 0 3,127
Century Casinos, Inc. COMMON 156492100 23,855 3,236,785 SH   SOLE 0 2,739,737 0 497,048
Charles River Laboratories Intl, Inc. COMMON 159864107 197,280 1,950,367 SH   SOLE 0 1,838,614 0 111,753
China Mobile Ltd. ADR ADR 16941M109 62,388 1,175,130 SH   SOLE 0 870,582 0 304,548
Church & Dwight Co., Inc. COMMON 171340102 1,488 28,683 SH   SOLE 0 13,347 0 15,336
CME Group Inc. COMMON 12572Q105 9,454 75,485 SH   SOLE 0 34,895 0 40,590
Coach, Inc. COMMON 189754104 9,553 201,795 SH   SOLE 0 89,015 0 112,780
Contango Oil & Gas Co. COMMON 21075N204 21,999 3,313,130 SH   SOLE 0 3,089,342 0 223,788
Core Laboratories N.V. COMMON N22717107 32,749 323,383 SH   SOLE 0 215,754 0 107,629
Costco Wholesale Corp. COMMON 22160K105 35,115 219,563 SH   SOLE 0 90,515 0 129,048
Cowen Inc. COMMON 223622606 30,510 1,877,564 SH   SOLE 0 1,584,328 0 293,236
CPI Aerostructures, Inc. COMMON 125919308 6,414 682,301 SH   SOLE 0 407,993 0 274,308
CRA International, Inc. COMMON 12618T105 6,512 179,298 SH   SOLE 0 179,298 0 0
Cumberland Pharmaceuticals, Inc. COMMON 230770109 6,835 976,377 SH   SOLE 0 597,350 0 379,027
CVS Health Corp. COMMON 126650100 9,306 115,661 SH   SOLE 0 115,661 0 0
Digi International Inc. COMMON 253798102 1,837 181,030 SH   SOLE 0 181,030 0 0
Digirad Corp. COMMON 253827109 2,022 499,254 SH   SOLE 0 299,953 0 199,301
Discover Financial Services COMMON 254709108 11,277 181,327 SH   SOLE 0 77,816 0 103,511
Dover Motorsports, Inc. COMMON 260174107 1,998 951,603 SH   SOLE 0 569,533 0 382,070
Dun & Bradstreet Corp. COMMON 26483E100 86,952 803,997 SH   SOLE 0 744,451 0 59,546
Edgewater Technology Inc. COMMON 280358102 11,963 1,759,234 SH   SOLE 0 1,337,812 0 421,422
Electro Scientific Industries, Inc. COMMON 285229100 4,526 549,247 SH   SOLE 0 549,247 0 0
Emcore Corporation COMMON 290846203 3,824 359,104 SH   SOLE 0 204,871 0 154,233
EOG Resources Inc. COMMON 26875P101 23,763 262,520 SH   SOLE 0 189,371 0 73,149
Expeditors Intl of Washington COMMON 302130109 1,302 23,059 SH   SOLE 0 10,268 0 12,791
Exxon Mobil Corp. COMMON 30231G102 6,863 85,009 SH   SOLE 0 85,009 0 0
F5 Networks, Inc. COMMON 315616102 400 3,152 SH   SOLE 0 3,152 0 0
Factset Research Systems, Inc. COMMON 303075105 5,457 32,840 SH   SOLE 0 12,084 0 20,756
Fair Isaac Corp. COMMON 303250104 46,053 330,345 SH   SOLE 0 298,416 0 31,929
First American Financial Corp. COMMON 31847R102 234,803 5,254,043 SH   SOLE 0 5,066,747 0 187,296
Fluor Corp. COMMON 343412102 42,081 919,193 SH   SOLE 0 487,259 0 431,934
Franklin Resources, Inc. COMMON 354613101 28,933 645,974 SH   SOLE 0 643,430 0 2,544
Gaia, Inc. COMMON 36269P104 4,947 441,693 SH   SOLE 0 441,693 0 0
Gilead Sciences, Inc. COMMON 375558103 147,988 2,090,813 SH   SOLE 0 911,777 0 1,179,036
GlassBridge Enterprises Inc. COMMON 377185103 3,425 864,948 SH   SOLE 0 708,902 0 156,046
GlaxoSmithKline plc ADR ADR 37733W105 70,982 1,646,146 SH   SOLE 0 979,354 0 666,792
Glu Mobile Inc. COMMON 379890106 7,237 2,894,600 SH   SOLE 0 2,894,600 0 0
Goldman Sachs Group, Inc. COMMON 38141G104 5,503 24,799 SH   SOLE 0 24,799 0 0
Graham Holdings Co. COMMON 384637104 13,918 23,211 SH   SOLE 0 22,581 0 630
Green Brick Partners Inc. COMMON 392709101 7,305 638,000 SH   SOLE 0 638,000 0 0
GSI Technology Inc. COMMON 36241U106 11,805 1,501,943 SH   SOLE 0 1,280,964 0 220,979
Gulf Island Fabrication, Inc. COMMON 402307102 6,853 590,771 SH   SOLE 0 590,771 0 0
Hanger, Inc. COMMON 41043F208 5,213 438,100 SH   SOLE 0 438,100 0 0
Hardinge Inc. COMMON 412324303 1,325 106,688 SH   SOLE 0 68,953 0 37,735
Horace Mann Educators Corp. COMMON 440327104 10,381 274,640 SH   SOLE 0 229,735 0 44,905
Houlihan Lokey, Inc. COMMON 441593100 53,694 1,538,508 SH   SOLE 0 1,530,816 0 7,692
IDEX Corp. COMMON 45167R104 18,601 164,593 SH   SOLE 0 137,199 0 27,394
Illinois Tool Works, Inc. COMMON 452308109 69,240 483,351 SH   SOLE 0 481,424 0 1,927
IntercontinentalExchange, Inc. COMMON 45866F104 1,413 21,440 SH   SOLE 0 9,545 0 11,895
InterDigital Inc. COMMON 45867G101 2,597 33,594 SH   SOLE 0 14,686 0 18,908
Interface, Inc. COMMON 458665304 19,833 1,009,330 SH   SOLE 0 840,260 0 169,070
International Business Machines Corp. COMMON 459200101 7,228 46,987 SH   SOLE 0 46,987 0 0
International Speedway Corp. COMMON 460335201 97,035 2,584,144 SH   SOLE 0 2,445,344 0 138,800
Interpublic Group of Cos., Inc. COMMON 460690100 183,628 7,464,535 SH   SOLE 0 7,325,532 0 139,003
ISHARES MSCI ACWI EX US ETF ETF 464288240 11,469 251,560 SH   SOLE 0 48,051 0 203,509
iShares Russell 2000 ETF ETF 464287655 6,257 44,400 SH   SOLE 0 44,400 0 0
Itau Unibanco Holding SA ADR ADR 465562106 441 39,869 SH   SOLE 0 19,478 0 20,391
J.M. Smucker Co. COMMON 832696405 122,767 1,037,495 SH   SOLE 0 1,020,163 0 17,332
Janus Henderson Group plc ORD SHS G4474Y214 102,944 3,109,161 SH   SOLE 0 2,923,968 0 185,193
JLL COMMON 48020Q107 170,035 1,360,283 SH   SOLE 0 1,294,067 0 66,216
Johnson & Johnson COMMON 478160104 125,725 950,374 SH   SOLE 0 451,462 0 498,912
JPMorgan Chase & Co. COMMON 46625H100 7,576 82,890 SH   SOLE 0 82,890 0 0
Kennametal, Inc. COMMON 489170100 205,214 5,484,076 SH   SOLE 0 5,222,072 0 262,004
Keysight Technologies, Inc. COMMON 49338L103 181,686 4,666,980 SH   SOLE 0 4,466,484 0 200,496
Kindred Biosciences, Inc. COMMON 494577109 16,872 1,961,912 SH   SOLE 0 1,662,469 0 299,443
KKR & Co. L.P. COMMON 48248M102 160,032 8,603,875 SH   SOLE 0 8,595,049 0 8,826
Laboratory Corp. of America Holdings COMMON 50540R409 213,456 1,384,816 SH   SOLE 0 1,362,869 0 21,947
Landec Corp. COMMON 514766104 7,687 517,637 SH   SOLE 0 437,537 0 80,100
Lazard Ltd. COMMON G54050102 255,721 5,519,562 SH   SOLE 0 5,316,044 0 203,518
LG Display Co Ltd - ADR ADR 50186V102 165 10,258 SH   SOLE 0 10,258 0 0
Littelfuse, Inc. COMMON 537008104 63,940 387,516 SH   SOLE 0 359,271 0 28,245
Lockheed Martin Corp. COMMON 539830109 9,107 32,804 SH   SOLE 0 32,804 0 0
Lumber Liquidators Holdings, Inc. COMMON 55003T107 3,435 137,068 SH   SOLE 0 115,293 0 21,775
Manning & Napier, Inc. COMMON 56382Q102 4,691 1,078,386 SH   SOLE 0 896,546 0 181,840
MasterCard Inc. COMMON 57636Q104 906 7,461 SH   SOLE 0 2,134 0 5,327
Mattel, Inc. COMMON 577081102 128,163 5,952,780 SH   SOLE 0 5,852,816 0 99,964
Matthews Intl Corp. COMMON 577128101 10,481 171,118 SH   SOLE 0 143,793 0 27,325
MB Financial, Inc. COMMON 55264U108 4,963 112,696 SH   SOLE 0 112,696 0 0
Meredith Corp. COMMON 589433101 86,682 1,458,060 SH   SOLE 0 1,367,721 0 90,339
Microsoft Corp. COMMON 594918104 180,232 2,614,714 SH   SOLE 0 1,161,463 0 1,453,251
Mitcham Industries, Inc. COMMON 606501104 10,788 2,780,406 SH   SOLE 0 2,306,206 0 474,200
Mohawk Industries, Inc. COMMON 608190104 58,629 242,581 SH   SOLE 0 232,896 0 9,685
Mosaic Co. COMMON 61945C103 6,458 282,878 SH   SOLE 0 282,878 0 0
Movado Group Inc. COMMON 624580106 5,464 216,400 SH   SOLE 0 216,400 0 0
MSG Networks, Inc. COMMON 553573106 137,440 6,122,053 SH   SOLE 0 5,898,886 0 223,167
MTS Systems Corp. COMMON 553777103 87,778 1,694,557 SH   SOLE 0 1,555,591 0 138,966
National Oilwell Varco COMMON 637071101 71,786 2,179,285 SH   SOLE 0 2,171,270 0 8,015
Nielsen Holdings plc COMMON G6518L108 82,779 2,141,201 SH   SOLE 0 2,134,732 0 6,469
Nippon Telegraph & Telephone ADR ADR 654624105 2,652 56,112 SH   SOLE 0 46,870 0 9,242
Nokia Corp. ADR ADR 654902204 203,913 33,102,808 SH   SOLE 0 20,903,997 0 12,198,811
Nordstrom, Inc. COMMON 655664100 57,467 1,201,477 SH   SOLE 0 1,194,514 0 6,963
Northern Trust Corp. COMMON 665859104 185,837 1,911,706 SH   SOLE 0 1,895,143 0 16,563
Novartis AG ADR ADR 66987V109 4,146 49,665 SH   SOLE 0 42,154 0 7,511
NTT Docomo Inc. ADR ADR 62942M201 1,207 51,038 SH   SOLE 0 51,038 0 0
Occidental Petroleum Corp. COMMON 674599105 24,213 404,431 SH   SOLE 0 231,004 0 173,427
Omnicom Group, Inc. COMMON 681919106 90,855 1,095,965 SH   SOLE 0 1,091,809 0 4,156
Oracle Corp. COMMON 68389X105 10,114 201,713 SH   SOLE 0 201,713 0 0
ORBCOMM, Inc. COMMON 68555P100 24,384 2,157,866 SH   SOLE 0 1,824,639 0 333,227
Orion Energy Systems, Inc. COMMON 686275108 6,375 4,980,847 SH   SOLE 0 4,154,612 0 826,235
Pandora Media, Inc. COMMON 698354107 5,547 621,896 SH   SOLE 0 317,134 0 304,762
PCTEL, Inc. COMMON 69325Q105 17,343 2,449,549 SH   SOLE 0 2,081,549 0 368,000
Pendrell Corp. COMMON 70686R302 13,049 1,804,791 SH   SOLE 0 1,521,687 0 283,104
Perceptron, Inc. COMMON 71361F100 8,108 1,113,794 SH   SOLE 0 661,525 0 452,269
Philip Morris Intl, Inc. COMMON 718172109 119,686 1,019,039 SH   SOLE 0 606,291 0 412,748
Progressive Corp. COMMON 743315103 55,676 1,262,773 SH   SOLE 0 1,257,904 0 4,869
Quest Diagnostics Inc. COMMON 74834L100 18,248 164,157 SH   SOLE 0 71,741 0 92,416
RealNetworks, Inc. COMMON 75605L708 29,640 6,845,311 SH   SOLE 0 5,777,700 0 1,067,611
Richardson Electronics, Ltd. COMMON 763165107 1,881 315,027 SH   SOLE 0 204,654 0 110,373
Rosetta Stone Inc. COMMON 777780107 38,083 3,532,764 SH   SOLE 0 2,972,583 0 560,181
Royal Caribbean Cruises Ltd. COMMON V7780T103 97,791 895,272 SH   SOLE 0 865,926 0 29,346
Rubicon Technology, Inc. COMMON 78112T206 1,670 180,297 SH   SOLE 0 106,289 0 74,008
Safeguard Scientifics Inc. COMMON 786449207 13,577 1,140,937 SH   SOLE 0 968,023 0 172,914
Sanofi-Aventis ADR 80105N105 852 17,790 SH   SOLE 0 17,790 0 0
Santander Mexico Financial Group ADR ADR 40053C105 6,493 673,541 SH   SOLE 0 319,347 0 354,194
Schlumberger Ltd. COMMON 806857108 21,532 327,030 SH   SOLE 0 126,160 0 200,870
SeaChange Intl, Inc. COMMON 811699107 11,119 4,179,930 SH   SOLE 0 3,530,042 0 649,888
Sempra Energy COMMON 816851109 27,704 245,709 SH   SOLE 0 107,624 0 138,085
Simpson Manufacturing Co., Inc. COMMON 829073105 76,981 1,761,167 SH   SOLE 0 1,637,664 0 123,503
Snap-On, Inc. COMMON 833034101 100,881 638,486 SH   SOLE 0 625,640 0 12,846
Sotheby's COMMON 835898107 26,155 487,339 SH   SOLE 0 443,551 0 43,788
Southern Co. COMMON 842587107 39,632 827,730 SH   SOLE 0 363,705 0 464,025
Spartan Motors Inc. COMMON 846819100 7,319 826,991 SH   SOLE 0 701,532 0 125,459
Stanley Black & Decker, Inc. COMMON 854502101 100,891 716,909 SH   SOLE 0 714,219 0 2,690
Strattec Security Corp. COMMON 863111100 6,341 179,116 SH   SOLE 0 179,116 0 0
Synacor, Inc. COMMON 871561106 7,536 2,064,651 SH   SOLE 0 2,064,651 0 0
T. Rowe Price Group, Inc. COMMON 74144T108 27,504 370,630 SH   SOLE 0 369,150 0 1,480
Team, Inc. COMMON 878155100 38,120 1,625,596 SH   SOLE 0 1,391,312 0 234,284
TechTarget, Inc. COMMON 87874R100 10,269 990,288 SH   SOLE 0 990,288 0 0
TEGNA, Inc. COMMON 87901J105 66,790 4,634,990 SH   SOLE 0 4,402,805 0 232,185
Telenav Inc. COMMON 879455103 18,007 2,223,076 SH   SOLE 0 1,878,371 0 344,705
Tenaris ADR ADR 88031M109 14,701 472,087 SH   SOLE 0 409,812 0 62,275
The Madison Square Garden Co. COMMON 55825T103 78,491 398,629 SH   SOLE 0 372,822 0 25,807
Thermo Fisher Scientific, Inc. COMMON 883556102 67,353 386,046 SH   SOLE 0 384,542 0 1,504
Toyota Motor Corp. ADR ADR 892331307 599 5,708 SH   SOLE 0 5,708 0 0
Tractor Supply COMMON 892356106 4,767 87,938 SH   SOLE 0 38,976 0 48,962
TripAdvisor Inc COMMON 896945201 2,880 75,405 SH   SOLE 0 32,973 0 42,432
U.S. Bancorp COMMON 902973304 18,774 361,586 SH   SOLE 0 158,364 0 203,222
U.S. Silica Holdings, Inc. COMMON 90346E103 133,002 3,747,589 SH   SOLE 0 3,531,281 0 216,308
Vanguard FTSE Developed ETF ETF 921943858 32,122 777,393 SH   SOLE 0 759,345 0 18,048
Vanguard S&P 500 ETF ETF 922908363 4,728 21,290 SH   SOLE 0 0 0 21,290
Vanguard Total World Stock Index Fd (ETF) ETF 922042742 8,472 125,462 SH   SOLE 0 73,503 0 51,959
Verizon Communications Inc. COMMON 92343V104 33,412 748,140 SH   SOLE 0 327,876 0 420,264
Versar Inc. COMMON 925297103 2,807 1,883,876 SH   SOLE 0 1,170,164 0 713,712
Viacom, Inc. COMMON 92553P201 132,129 3,935,928 SH   SOLE 0 3,861,626 0 74,302
Vical Inc. COMMON 925602203 1,025 385,426 SH   SOLE 0 201,560 0 183,866
West Marine, Inc. COMMON 954235107 7,605 591,796 SH   SOLE 0 591,796 0 0
Western Union Co. COMMON 959802109 97,213 5,103,022 SH   SOLE 0 5,028,075 0 74,947
Willis Towers Watson plc COMMON G96629103 71,999 494,972 SH   SOLE 0 493,044 0 1,928
XO Group Inc. COMMON 983772104 17,398 987,396 SH   SOLE 0 843,750 0 143,646
Zebra Technologies Corp. COMMON 989207105 174,139 1,732,385 SH   SOLE 0 1,626,605 0 105,780
Zimmer Biomet Holdings, Inc. COMMON 98956P102 136,367 1,062,051 SH   SOLE 0 1,058,095 0 3,956