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 11,406 4,937,746 SH   SOLE 0 3,565,827 0 1,371,919
Acacia Research Corp. COMMON 003881307 10,435 2,514,436 SH   SOLE 0 1,065,668 0 1,448,768
Acuity Brands COMMON 00508Y102 3,599 31,063 SH   SOLE 0 14,956 0 16,107
Adtalem Global Education, Inc. COMMON 00737L103 80,684 1,677,418 SH   SOLE 0 1,609,608 0 67,810
AFLAC, Inc. COMMON 001055102 96,341 2,239,458 SH   SOLE 0 2,229,608 0 9,850
Amdocs Ltd. COMMON G02602103 5,017 75,799 SH   SOLE 0 39,007 0 36,792
American Electric Technologies, Inc. COMMON 025576109 857 685,288 SH   SOLE 0 196,522 0 488,766
American Express Co. COMMON 025816109 86,329 880,912 SH   SOLE 0 384,587 0 496,325
Anixter Intl, Inc. COMMON 035290105 80,349 1,269,344 SH   SOLE 0 1,204,544 0 64,800
Apache Corp. COMMON 037411105 6,381 136,492 SH   SOLE 0 136,492 0 0
Aspen Aerogels Inc. COMMON 04523Y105 8,124 1,657,889 SH   SOLE 0 1,309,644 0 348,245
AstroNova, Inc. COMMON 04638F108 10,145 538,207 SH   SOLE 0 423,535 0 114,672
Atlas Financial Holdings, Inc. COMMON G06207115 14,256 1,629,226 SH   SOLE 0 1,333,226 0 296,000
AutoWeb Inc. COMMON 05335B100 2,354 520,843 SH   SOLE 0 341,158 0 179,685
AXT Inc. COMMON 00246W103 2,000 283,741 SH   SOLE 0 62,499 0 221,242
Baidu, Inc. ADR ADR 056752108 287,727 1,184,062 SH   SOLE 0 762,793 0 421,269
Ballantyne Strong, Inc. COMMON 058516105 15,988 3,296,508 SH   SOLE 0 2,859,273 0 437,235
Banco Santander Mexico SA ADR ADR 05969B103 9,513 1,422,038 SH   SOLE 0 783,037 0 639,001
Banco Santander-Chile ADR ADR 05965X109 27,136 863,364 SH   SOLE 0 491,977 0 371,387
Bank of New York Mellon Corp. COMMON 064058100 5,562 103,130 SH   SOLE 0 103,130 0 0
Barrick Gold Corp. COMMON 067901108 9,058 689,855 SH   SOLE 0 689,855 0 0
Berkshire Hathaway Inc. COMMON 084670702 102,978 551,717 SH   SOLE 0 262,446 0 289,271
Bio-Rad Laboratories, Inc. COMMON 090572207 66,934 231,976 SH   SOLE 0 211,126 0 20,850
Blackstone Group L.P. COMMON 09253U108 29,456 915,624 SH   SOLE 0 911,924 0 3,700
BOK Financial Corp. COMMON 05561Q201 48,041 511,018 SH   SOLE 0 484,518 0 26,500
BorgWarner, Inc. COMMON 099724106 73,235 1,696,836 SH   SOLE 0 1,689,836 0 7,000
Brady Corp. COMMON 104674106 71,955 1,866,529 SH   SOLE 0 1,696,442 0 170,087
Brink's Co. COMMON 109696104 25,220 316,237 SH   SOLE 0 256,688 0 59,549
Bristow Group, Inc. COMMON 110394103 134,535 9,534,740 SH   SOLE 0 9,130,089 0 404,651
Capital Southwest Corp. COMMON 140501107 18,826 1,039,515 SH   SOLE 0 910,076 0 129,439
Cardinal Health, Inc. COMMON 14149Y108 45,428 930,324 SH   SOLE 0 926,124 0 4,200
Cars.com Inc. COMMON 14575E105 7,176 252,759 SH   SOLE 0 208,327 0 44,432
CBRE Group, Inc. COMMON 12504L109 90,261 1,890,673 SH   SOLE 0 1,846,873 0 43,800
CBS Corp. COMMON 124857202 64,447 1,146,334 SH   SOLE 0 1,141,452 0 4,882
Century Casinos, Inc. COMMON 156492100 31,580 3,609,149 SH   SOLE 0 3,163,585 0 445,564
Charles River Laboratories Intl, Inc. COMMON 159864107 147,912 1,317,586 SH   SOLE 0 1,236,208 0 81,378
China Mobile Ltd. ADR ADR 16941M109 48,842 1,100,299 SH   SOLE 0 795,751 0 304,548
Core Laboratories N.V. COMMON N22717107 61,958 490,915 SH   SOLE 0 356,864 0 134,051
Costco Wholesale Corp. COMMON 22160K105 48,062 229,982 SH   SOLE 0 104,561 0 125,421
Cowen Inc. COMMON 223622606 29,713 2,145,366 SH   SOLE 0 1,868,120 0 277,246
CPI Aerostructures, Inc. COMMON 125919308 8,150 776,157 SH   SOLE 0 552,849 0 223,308
Crown Crafts, Inc. COMMON 228309100 898 157,616 SH   SOLE 0 35,016 0 122,600
Cumberland Pharmaceuticals, Inc. COMMON 230770109 8,000 1,305,052 SH   SOLE 0 1,006,772 0 298,280
Digirad Corp. COMMON 253827109 1,279 825,443 SH   SOLE 0 182,484 0 642,959
Discover Financial Services COMMON 254709108 13,559 192,579 SH   SOLE 0 91,534 0 101,045
Dover Motorsports, Inc. COMMON 260174107 544 241,817 SH   SOLE 0 51,565 0 190,252
Dun & Bradstreet Corp. COMMON 26483E100 92,379 753,190 SH   SOLE 0 693,652 0 59,538
Edgewater Technology Inc. COMMON 280358102 15,119 2,789,490 SH   SOLE 0 2,368,002 0 421,488
Emcore Corporation COMMON 290846203 11,569 2,290,816 SH   SOLE 0 1,996,498 0 294,318
EOG Resources Inc. COMMON 26875P101 53,092 426,678 SH   SOLE 0 327,952 0 98,726
Expeditors Intl of Washington COMMON 302130109 5,453 74,595 SH   SOLE 0 36,096 0 38,499
Exxon Mobil Corp. COMMON 30231G102 7,469 90,287 SH   SOLE 0 90,287 0 0
Fabrinet SHS G3323L100 6,721 182,189 SH   SOLE 0 163,461 0 18,728
Fair Isaac Corp. COMMON 303250104 44,383 229,585 SH   SOLE 0 201,803 0 27,782
First American Financial Corp. COMMON 31847R102 233,762 4,519,761 SH   SOLE 0 4,318,536 0 201,225
Fluor Corp. COMMON 343412102 51,507 1,055,914 SH   SOLE 0 575,352 0 480,562
Foot Locker, Inc. COMMON 344849104 7,254 137,771 SH   SOLE 0 65,805 0 71,966
Gilead Sciences, Inc. COMMON 375558103 165,005 2,329,260 SH   SOLE 0 1,107,006 0 1,222,254
GlassBridge Enterprises Inc. COMMON 377185103 664 819,788 SH   SOLE 0 662,680 0 157,108
GlaxoSmithKline plc ADR ADR 37733W105 68,734 1,705,128 SH   SOLE 0 974,146 0 730,982
Glu Mobile Inc. COMMON 379890106 6,783 1,058,243 SH   SOLE 0 920,543 0 137,700
Goldman Sachs Group, Inc. COMMON 38141G104 4,997 22,654 SH   SOLE 0 22,654 0 0
Green Brick Partners Inc. COMMON 392709101 16,845 1,718,846 SH   SOLE 0 1,635,546 0 83,300
GSI Technology Inc. COMMON 36241U106 12,805 1,702,758 SH   SOLE 0 1,506,279 0 196,479
Gulf Island Fabrication, Inc. COMMON 402307102 5,182 575,783 SH   SOLE 0 575,783 0 0
Hanger, Inc. COMMON 41043F208 8,907 525,206 SH   SOLE 0 525,206 0 0
Horace Mann Educators Corp. COMMON 440327104 11,056 247,883 SH   SOLE 0 202,238 0 45,645
Houlihan Lokey, Inc. COMMON 441593100 76,170 1,487,106 SH   SOLE 0 1,479,506 0 7,600
Illinois Tool Works, Inc. COMMON 452308109 59,101 426,600 SH   SOLE 0 424,700 0 1,900
IntercontinentalExchange, Inc. COMMON 45866F104 21,406 291,045 SH   SOLE 0 138,895 0 152,150
Interface, Inc. COMMON 458665304 22,659 987,315 SH   SOLE 0 801,346 0 185,969
International Speedway Corp. COMMON 460335201 79,631 1,781,444 SH   SOLE 0 1,658,744 0 122,700
Interpublic Group of Cos., Inc. COMMON 460690100 180,635 7,706,271 SH   SOLE 0 7,551,396 0 154,875
IShares MSCI ACWI Ex US ETF ETF 464288240 10,941 231,557 SH   SOLE 0 48,051 0 183,506
J.M. Smucker Co. COMMON 832696405 189,967 1,767,460 SH   SOLE 0 1,738,560 0 28,900
Janus Henderson Group plc ORD SHS G4474Y214 72,754 2,367,518 SH   SOLE 0 2,193,597 0 173,921
JLL COMMON 48020Q107 121,191 730,113 SH   SOLE 0 681,596 0 48,517
Johnson & Johnson COMMON 478160104 121,602 1,002,162 SH   SOLE 0 510,930 0 491,232
Kennametal, Inc. COMMON 489170100 195,992 5,459,382 SH   SOLE 0 5,175,338 0 284,044
Keysight Technologies, Inc. COMMON 49338L103 228,510 3,871,085 SH   SOLE 0 3,698,952 0 172,133
Kindred Biosciences, Inc. COMMON 494577109 23,628 2,218,612 SH   SOLE 0 1,925,213 0 293,399
KKR & Co. L.P. COMMON 48248M102 168,013 6,761,084 SH   SOLE 0 6,755,684 0 5,400
Laboratory Corp. of America Holdings COMMON 50540R409 203,491 1,133,465 SH   SOLE 0 1,114,015 0 19,450
Lakeland Industries, Inc. COMMON 511795106 6,718 474,799 SH   SOLE 0 474,799 0 0
Landec Corp. COMMON 514766104 4,807 322,595 SH   SOLE 0 276,570 0 46,025
Lazard Ltd. COMMON G54050102 216,836 4,433,359 SH   SOLE 0 4,241,457 0 191,902
Littelfuse, Inc. COMMON 537008104 50,839 222,801 SH   SOLE 0 200,351 0 22,450
Lockheed Martin Corp. COMMON 539830109 8,499 28,769 SH   SOLE 0 28,769 0 0
Manning & Napier, Inc. COMMON 56382Q102 3,077 992,478 SH   SOLE 0 815,278 0 177,200
Mattel, Inc. COMMON 577081102 183,639 11,183,832 SH   SOLE 0 10,799,116 0 384,716
Matthews Intl Corp. COMMON 577128101 9,094 154,658 SH   SOLE 0 126,728 0 27,930
MB Financial, Inc. COMMON 55264U108 5,945 127,296 SH   SOLE 0 127,296 0 0
Meredith Corp. COMMON 589433101 65,371 1,281,789 SH   SOLE 0 1,225,194 0 56,595
Methode Electronics Inc. COMMON 591520200 35,276 875,325 SH   SOLE 0 759,025 0 116,300
Microsoft Corp. COMMON 594918104 274,357 2,782,243 SH   SOLE 0 1,328,992 0 1,453,251
Mitcham Industries, Inc. COMMON 606501104 11,879 2,954,868 SH   SOLE 0 2,535,778 0 419,090
Mohawk Industries, Inc. COMMON 608190104 46,651 217,719 SH   SOLE 0 207,417 0 10,302
Mosaic Co. COMMON 61945C103 7,923 282,463 SH   SOLE 0 282,463 0 0
Movado Group Inc. COMMON 624580106 4,260 88,200 SH   SOLE 0 88,200 0 0
MSG Networks, Inc. COMMON 553573106 218,289 9,114,348 SH   SOLE 0 8,741,889 0 372,459
MTS Systems Corp. COMMON 553777103 91,618 1,740,129 SH   SOLE 0 1,580,393 0 159,736
National Oilwell Varco COMMON 637071101 61,264 1,411,604 SH   SOLE 0 1,406,004 0 5,600
Nielsen Holdings plc COMMON G6518L108 151,293 4,891,462 SH   SOLE 0 4,796,062 0 95,400
Nokia Corp. ADR ADR 654902204 139,393 24,242,239 SH   SOLE 0 16,449,506 0 7,792,733
Nordstrom, Inc. COMMON 655664100 52,875 1,021,143 SH   SOLE 0 1,014,448 0 6,695
Northern Trust Corp. COMMON 665859104 186,227 1,809,965 SH   SOLE 0 1,791,865 0 18,100
Novartis AG ADR ADR 66987V109 5,214 69,026 SH   SOLE 0 61,341 0 7,685
NTT Docomo Inc. ADR ADR 62942M201 1,961 76,950 SH   SOLE 0 76,950 0 0
Oaktree Capital Group LLC COMMON 674001201 68,973 1,696,756 SH   SOLE 0 1,694,456 0 2,300
Occidental Petroleum Corp. COMMON 674599105 22,630 270,437 SH   SOLE 0 128,809 0 141,628
Omnicom Group, Inc. COMMON 681919106 77,469 1,015,724 SH   SOLE 0 1,011,628 0 4,096
Oracle Corp. COMMON 68389X105 9,317 211,467 SH   SOLE 0 211,467 0 0
ORBCOMM, Inc. COMMON 68555P100 24,240 2,399,961 SH   SOLE 0 2,093,162 0 306,799
Orion Energy Systems, Inc. COMMON 686275108 5,175 4,704,759 SH   SOLE 0 4,003,832 0 700,927
Pandora Media, Inc. COMMON 698354107 5,067 642,961 SH   SOLE 0 306,712 0 336,249
PCTEL, Inc. COMMON 69325Q105 14,482 2,320,817 SH   SOLE 0 2,021,217 0 299,600
Perceptron, Inc. COMMON 71361F100 8,714 825,986 SH   SOLE 0 560,921 0 265,065
Philip Morris Intl, Inc. COMMON 718172109 176,636 2,187,710 SH   SOLE 0 1,476,220 0 711,490
Pioneer Natural Resources Co COMMON 723787107 67,366 355,984 SH   SOLE 0 240,497 0 115,487
Progressive Corp. COMMON 743315103 54,434 920,272 SH   SOLE 0 915,972 0 4,300
Pure Cycle Corp. COMMON 746228303 329 34,417 SH   SOLE 0 7,193 0 27,224
Quest Diagnostics Inc. COMMON 74834L100 26,781 243,599 SH   SOLE 0 117,713 0 125,886
RealNetworks, Inc. COMMON 75605L708 25,751 6,959,612 SH   SOLE 0 6,065,482 0 894,130
Rosetta Stone Inc. COMMON 777780107 20,758 1,294,970 SH   SOLE 0 1,094,781 0 200,189
Royal Caribbean Cruises Ltd. COMMON V7780T103 71,904 694,050 SH   SOLE 0 667,044 0 27,006
Rubicon Project Inc. COMMON 78112V102 1,767 620,120 SH   SOLE 0 137,824 0 482,296
Rubicon Technology, Inc. COMMON 78112T206 1,697 215,083 SH   SOLE 0 56,205 0 158,878
Safeguard Scientifics Inc. COMMON 786449207 20,163 1,575,258 SH   SOLE 0 1,389,058 0 186,200
Sanofi-Aventis ADR 80105N105 712 17,790 SH   SOLE 0 17,790 0 0
Schlumberger Ltd. COMMON 806857108 79,238 1,182,121 SH   SOLE 0 554,701 0 627,420
SeaChange Intl, Inc. COMMON 811699107 11,686 3,417,075 SH   SOLE 0 2,976,368 0 440,707
Sempra Energy COMMON 816851109 25,211 217,127 SH   SOLE 0 103,340 0 113,787
Simpson Manufacturing Co., Inc. COMMON 829073105 113,380 1,823,128 SH   SOLE 0 1,671,327 0 151,801
Snap-On, Inc. COMMON 833034101 149,459 929,933 SH   SOLE 0 912,529 0 17,404
Sotheby's COMMON 835898107 19,847 365,244 SH   SOLE 0 322,481 0 42,763
Southern Co. COMMON 842587107 40,305 870,337 SH   SOLE 0 417,499 0 452,838
Spartan Motors Inc. COMMON 846819100 504 33,404 SH   SOLE 0 7,378 0 26,026
Stanley Black & Decker, Inc. COMMON 854502101 79,499 598,592 SH   SOLE 0 596,040 0 2,552
Stericycle Inc. COMMON 858912108 56,793 869,852 SH   SOLE 0 866,252 0 3,600
Strattec Security Corp. COMMON 863111100 11,358 371,796 SH   SOLE 0 371,796 0 0
Synacor, Inc. COMMON 871561106 7,953 3,976,412 SH   SOLE 0 3,976,412 0 0
Tapestry, Inc. COMMON 876030107 8,901 190,568 SH   SOLE 0 90,768 0 99,800
Team, Inc. COMMON 878155100 50,334 2,178,962 SH   SOLE 0 1,854,614 0 324,348
TEGNA, Inc. COMMON 87901J105 107,223 9,882,320 SH   SOLE 0 9,464,320 0 418,000
Tejon Ranch Co. COMMON 879080109 12,972 533,836 SH   SOLE 0 503,836 0 30,000
Telenav Inc. COMMON 879455103 21,508 3,840,700 SH   SOLE 0 3,356,095 0 484,605
Tenaris ADR ADR 88031M109 31,978 878,750 SH   SOLE 0 768,076 0 110,674
The Madison Square Garden Co. COMMON 55825T103 115,324 371,786 SH   SOLE 0 346,047 0 25,739
Thermo Fisher Scientific, Inc. COMMON 883556102 69,387 334,978 SH   SOLE 0 333,496 0 1,482
Tractor Supply COMMON 892356106 6,699 87,581 SH   SOLE 0 42,689 0 44,892
U.S. Bancorp COMMON 902973304 19,128 382,407 SH   SOLE 0 182,503 0 199,904
U.S. Silica Holdings, Inc. COMMON 90346E103 149,019 5,800,668 SH   SOLE 0 5,478,653 0 322,015
Vanguard FTSE Developed ETF ETF 921943858 44,454 1,036,217 SH   SOLE 0 1,018,169 0 18,048
Vanguard Total World Stock Index Fd (ETF) ETF 922042742 1,775 24,189 SH   SOLE 0 24,189 0 0
Verizon Communications Inc. COMMON 92343V104 64,489 1,281,823 SH   SOLE 0 619,184 0 662,639
Viacom, Inc. COMMON 92553P201 106,631 3,535,519 SH   SOLE 0 3,442,919 0 92,600
Western Union Co. COMMON 959802109 83,562 4,110,274 SH   SOLE 0 4,049,374 0 60,900
Willis Towers Watson plc COMMON G96629103 60,779 400,915 SH   SOLE 0 399,115 0 1,800
Zebra Technologies Corp. COMMON 989207105 152,229 1,062,680 SH   SOLE 0 981,680 0 81,000
Zimmer Biomet Holdings, Inc. COMMON 98956P102 105,040 942,571 SH   SOLE 0 938,671 0 3,900