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 8,903 4,786,704 SH   SOLE 0 3,414,785 0 1,371,919
Acacia Research Corp. COMMON 003881307 8,801 2,514,436 SH   SOLE 0 1,065,668 0 1,448,768
Acuity Brands COMMON 00508Y102 4,268 30,663 SH   SOLE 0 14,556 0 16,107
Adtalem Global Education, Inc. COMMON 00737L103 87,172 1,833,270 SH   SOLE 0 1,766,360 0 66,910
AFLAC, Inc. COMMON 001055102 99,156 2,265,896 SH   SOLE 0 2,256,046 0 9,850
Amdocs Ltd. COMMON G02602103 257 3,858 SH   SOLE 0 1,724 0 2,134
American Electric Technologies, Inc. COMMON 025576109 1,513 1,375,475 SH   SOLE 0 812,209 0 563,266
American Express Co. COMMON 025816109 82,475 884,170 SH   SOLE 0 373,875 0 510,295
Anixter Intl, Inc. COMMON 035290105 96,860 1,278,678 SH   SOLE 0 1,214,778 0 63,900
Apache Corp. COMMON 037411105 5,252 136,492 SH   SOLE 0 136,492 0 0
Aspen Aerogels Inc. COMMON 04523Y105 5,137 1,202,956 SH   SOLE 0 854,711 0 348,245
AstroNova, Inc. COMMON 04638F108 9,275 598,361 SH   SOLE 0 430,689 0 167,672
Atlas Financial Holdings, Inc. COMMON G06207115 13,758 1,329,307 SH   SOLE 0 1,157,432 0 171,875
AutoWeb Inc. COMMON 05335B100 1,551 520,494 SH   SOLE 0 340,809 0 179,685
AXT Inc. COMMON 00246W103 1,912 263,723 SH   SOLE 0 60,281 0 203,442
Baidu, Inc. ADR ADR 056752108 251,575 1,127,180 SH   SOLE 0 705,911 0 421,269
Ballantyne Strong, Inc. COMMON 058516105 13,388 3,008,530 SH   SOLE 0 2,623,395 0 385,135
Banco Santander Mexico SA ADR ADR 05969B103 9,146 1,275,618 SH   SOLE 0 636,617 0 639,001
Banco Santander-Chile ADR ADR 05965X109 25,086 748,613 SH   SOLE 0 377,226 0 371,387
Bank of New York Mellon Corp. COMMON 064058100 5,316 103,166 SH   SOLE 0 103,166 0 0
Barrick Gold Corp. COMMON 067901108 8,594 690,291 SH   SOLE 0 690,291 0 0
Berkshire Hathaway Inc. COMMON 084670702 108,561 544,219 SH   SOLE 0 254,948 0 289,271
Bio-Rad Laboratories, Inc. COMMON 090572207 62,802 251,129 SH   SOLE 0 228,579 0 22,550
Blackstone Group L.P. COMMON 09253U108 32,753 1,025,133 SH   SOLE 0 1,021,333 0 3,800
BOK Financial Corp. COMMON 05561Q201 50,898 514,177 SH   SOLE 0 487,677 0 26,500
BorgWarner, Inc. COMMON 099724106 86,127 1,714,656 SH   SOLE 0 1,707,656 0 7,000
Brady Corp. COMMON 104674106 84,457 2,273,413 SH   SOLE 0 2,101,726 0 171,687
Brink's Co. COMMON 109696104 19,472 272,911 SH   SOLE 0 220,762 0 52,149
Bristow Group, Inc. COMMON 110394103 131,211 10,093,161 SH   SOLE 0 9,688,510 0 404,651
Capital Southwest Corp. COMMON 140501107 16,879 991,723 SH   SOLE 0 873,684 0 118,039
Cardinal Health, Inc. COMMON 14149Y108 53,331 850,845 SH   SOLE 0 846,845 0 4,000
Cars.com Inc. COMMON 14575E105 7,130 251,684 SH   SOLE 0 207,252 0 44,432
CBRE Group, Inc. COMMON 12504L109 102,507 2,170,848 SH   SOLE 0 2,115,848 0 55,000
CBS Corp. COMMON 124857202 44,584 867,556 SH   SOLE 0 863,974 0 3,582
Century Casinos, Inc. COMMON 156492100 22,582 3,027,113 SH   SOLE 0 2,620,889 0 406,224
Charles River Laboratories Intl, Inc. COMMON 159864107 145,303 1,361,277 SH   SOLE 0 1,280,499 0 80,778
China Mobile Ltd. ADR ADR 16941M109 52,382 1,144,959 SH   SOLE 0 840,411 0 304,548
Contango Oil & Gas Co. COMMON 21075N204 14,875 4,190,221 SH   SOLE 0 3,989,303 0 200,918
Core Laboratories N.V. COMMON N22717107 53,225 491,822 SH   SOLE 0 357,771 0 134,051
Costco Wholesale Corp. COMMON 22160K105 42,741 226,825 SH   SOLE 0 101,404 0 125,421
Cowen Inc. COMMON 223622606 28,588 2,165,788 SH   SOLE 0 1,898,842 0 266,946
CPI Aerostructures, Inc. COMMON 125919308 6,793 696,703 SH   SOLE 0 473,395 0 223,308
CRA International, Inc. COMMON 12618T105 5,739 109,748 SH   SOLE 0 109,748 0 0
Cumberland Pharmaceuticals, Inc. COMMON 230770109 6,773 1,013,926 SH   SOLE 0 715,646 0 298,280
Digirad Corp. COMMON 253827109 1,633 1,053,374 SH   SOLE 0 410,415 0 642,959
Discover Financial Services COMMON 254709108 13,672 190,072 SH   SOLE 0 89,027 0 101,045
Dover Motorsports, Inc. COMMON 260174107 513 244,113 SH   SOLE 0 53,861 0 190,252
Dun & Bradstreet Corp. COMMON 26483E100 90,416 772,790 SH   SOLE 0 713,452 0 59,338
Edgewater Technology Inc. COMMON 280358102 12,689 2,286,380 SH   SOLE 0 1,943,392 0 342,988
Emcore Corporation COMMON 290846203 11,323 1,986,560 SH   SOLE 0 1,734,242 0 252,318
EOG Resources Inc. COMMON 26875P101 44,604 423,713 SH   SOLE 0 324,987 0 98,726
Expeditors Intl of Washington COMMON 302130109 4,661 73,629 SH   SOLE 0 35,130 0 38,499
Exxon Mobil Corp. COMMON 30231G102 6,741 90,344 SH   SOLE 0 90,344 0 0
Fabrinet SHS G3323L100 1,828 58,269 SH   SOLE 0 51,662 0 6,607
Fair Isaac Corp. COMMON 303250104 45,269 267,277 SH   SOLE 0 235,742 0 31,535
First American Financial Corp. COMMON 31847R102 265,272 4,520,651 SH   SOLE 0 4,336,245 0 184,406
Fluor Corp. COMMON 343412102 63,782 1,114,682 SH   SOLE 0 631,048 0 483,634
Foot Locker, Inc. COMMON 344849104 6,192 135,970 SH   SOLE 0 64,004 0 71,966
Gilead Sciences, Inc. COMMON 375558103 163,545 2,169,319 SH   SOLE 0 1,014,988 0 1,154,331
GlassBridge Enterprises Inc. COMMON 377185103 945 908,465 SH   SOLE 0 751,357 0 157,108
GlaxoSmithKline plc ADR ADR 37733W105 69,214 1,771,550 SH   SOLE 0 1,040,568 0 730,982
Glu Mobile Inc. COMMON 379890106 9,978 2,646,603 SH   SOLE 0 2,395,203 0 251,400
Goldman Sachs Group, Inc. COMMON 38141G104 5,708 22,665 SH   SOLE 0 22,665 0 0
Green Brick Partners Inc. COMMON 392709101 11,598 1,063,993 SH   SOLE 0 1,063,993 0 0
GSI Technology Inc. COMMON 36241U106 12,294 1,659,059 SH   SOLE 0 1,462,580 0 196,479
Gulf Island Fabrication, Inc. COMMON 402307102 4,164 586,419 SH   SOLE 0 586,419 0 0
Hanger, Inc. COMMON 41043F208 8,406 525,377 SH   SOLE 0 525,377 0 0
Horace Mann Educators Corp. COMMON 440327104 10,477 245,083 SH   SOLE 0 199,438 0 45,645
Houlihan Lokey, Inc. COMMON 441593100 67,351 1,510,115 SH   SOLE 0 1,502,515 0 7,600
IDEX Corp. COMMON 45167R104 8,382 58,816 SH   SOLE 0 47,509 0 11,307
Illinois Tool Works, Inc. COMMON 452308109 67,903 433,442 SH   SOLE 0 431,542 0 1,900
IntercontinentalExchange, Inc. COMMON 45866F104 20,830 287,232 SH   SOLE 0 135,082 0 152,150
Interface, Inc. COMMON 458665304 22,631 898,074 SH   SOLE 0 728,405 0 169,669
International Speedway Corp. COMMON 460335201 78,917 1,789,512 SH   SOLE 0 1,667,412 0 122,100
Interpublic Group of Cos., Inc. COMMON 460690100 176,819 7,677,764 SH   SOLE 0 7,525,489 0 152,275
ISHARES MSCI ACWI EX US ETF ETF 464288240 12,072 242,954 SH   SOLE 0 59,448 0 183,506
J.M. Smucker Co. COMMON 832696405 205,687 1,658,632 SH   SOLE 0 1,632,832 0 25,800
Janus Henderson Group plc ORD SHS G4474Y214 80,855 2,443,502 SH   SOLE 0 2,275,081 0 168,421
JLL COMMON 48020Q107 171,991 984,830 SH   SOLE 0 928,953 0 55,877
Johnson & Johnson COMMON 478160104 126,605 987,940 SH   SOLE 0 496,708 0 491,232
Kennametal, Inc. COMMON 489170100 208,308 5,186,954 SH   SOLE 0 4,915,810 0 271,144
Keysight Technologies, Inc. COMMON 49338L103 241,234 4,604,580 SH   SOLE 0 4,394,125 0 210,455
Kindred Biosciences, Inc. COMMON 494577109 15,240 1,761,829 SH   SOLE 0 1,512,180 0 249,649
KKR & Co. L.P. COMMON 48248M102 159,228 7,843,723 SH   SOLE 0 7,835,023 0 8,700
Laboratory Corp. of America Holdings COMMON 50540R409 191,946 1,186,682 SH   SOLE 0 1,167,332 0 19,350
Landec Corp. COMMON 514766104 4,448 340,857 SH   SOLE 0 294,157 0 46,700
Lazard Ltd. COMMON G54050102 237,033 4,509,758 SH   SOLE 0 4,318,656 0 191,102
Littelfuse, Inc. COMMON 537008104 45,977 220,851 SH   SOLE 0 198,601 0 22,250
Lockheed Martin Corp. COMMON 539830109 9,729 28,790 SH   SOLE 0 28,790 0 0
Manning & Napier, Inc. COMMON 56382Q102 3,563 1,017,878 SH   SOLE 0 840,678 0 177,200
MasterCard Inc. COMMON 57636Q104 289 1,649 SH   SOLE 0 1,649 0 0
Mattel, Inc. COMMON 577081102 129,784 9,869,537 SH   SOLE 0 9,687,358 0 182,179
Matthews Intl Corp. COMMON 577128101 7,795 154,058 SH   SOLE 0 126,128 0 27,930
MB Financial, Inc. COMMON 55264U108 5,291 130,696 SH   SOLE 0 130,696 0 0
Meredith Corp. COMMON 589433101 59,289 1,102,033 SH   SOLE 0 1,052,640 0 49,393
Methode Electronics Inc. COMMON 591520200 28,340 724,811 SH   SOLE 0 618,011 0 106,800
Microsoft Corp. COMMON 594918104 250,857 2,748,518 SH   SOLE 0 1,295,267 0 1,453,251
Mitcham Industries, Inc. COMMON 606501104 9,535 2,942,932 SH   SOLE 0 2,529,042 0 413,890
Mohawk Industries, Inc. COMMON 608190104 49,619 213,672 SH   SOLE 0 204,895 0 8,777
Mosaic Co. COMMON 61945C103 6,861 282,588 SH   SOLE 0 282,588 0 0
Movado Group Inc. COMMON 624580106 7,480 194,800 SH   SOLE 0 194,800 0 0
MSG Networks, Inc. COMMON 553573106 204,967 9,069,330 SH   SOLE 0 8,700,999 0 368,331
MTS Systems Corp. COMMON 553777103 89,845 1,739,504 SH   SOLE 0 1,580,568 0 158,936
National Oilwell Varco COMMON 637071101 72,853 1,979,168 SH   SOLE 0 1,971,268 0 7,900
Nielsen Holdings plc COMMON G6518L108 124,760 3,924,501 SH   SOLE 0 3,844,601 0 79,900
Nokia Corp. ADR ADR 654902204 131,581 24,054,959 SH   SOLE 0 16,262,226 0 7,792,733
Nordstrom, Inc. COMMON 655664100 50,023 1,033,310 SH   SOLE 0 1,026,615 0 6,695
Northern Trust Corp. COMMON 665859104 186,699 1,810,324 SH   SOLE 0 1,792,724 0 17,600
Novartis AG ADR ADR 66987V109 5,611 69,405 SH   SOLE 0 61,720 0 7,685
NTT Docomo Inc. ADR ADR 62942M201 1,968 76,950 SH   SOLE 0 76,950 0 0
Oaktree Capital Group LLC COMMON 674001201 64,404 1,626,373 SH   SOLE 0 1,624,473 0 1,900
Occidental Petroleum Corp. COMMON 674599105 37,471 576,828 SH   SOLE 0 369,238 0 207,590
Omnicom Group, Inc. COMMON 681919106 74,614 1,026,751 SH   SOLE 0 1,022,655 0 4,096
Oracle Corp. COMMON 68389X105 9,680 211,589 SH   SOLE 0 211,589 0 0
ORBCOMM, Inc. COMMON 68555P100 21,867 2,333,742 SH   SOLE 0 2,029,843 0 303,899
Orion Energy Systems, Inc. COMMON 686275108 4,119 4,846,248 SH   SOLE 0 4,193,718 0 652,530
Pandora Media, Inc. COMMON 698354107 4,993 992,617 SH   SOLE 0 502,848 0 489,769
PCTEL, Inc. COMMON 69325Q105 16,164 2,251,250 SH   SOLE 0 1,951,650 0 299,600
Perceptron, Inc. COMMON 71361F100 7,331 837,818 SH   SOLE 0 572,753 0 265,065
Philip Morris Intl, Inc. COMMON 718172109 105,184 1,058,194 SH   SOLE 0 691,368 0 366,826
Pioneer Natural Resources Co COMMON 723787107 61,063 355,472 SH   SOLE 0 239,985 0 115,487
Progressive Corp. COMMON 743315103 57,095 937,052 SH   SOLE 0 932,752 0 4,300
Pure Cycle Corp. COMMON 746228303 328 34,727 SH   SOLE 0 7,503 0 27,224
Quest Diagnostics Inc. COMMON 74834L100 24,116 240,442 SH   SOLE 0 114,556 0 125,886
RealNetworks, Inc. COMMON 75605L708 21,424 7,001,160 SH   SOLE 0 6,160,330 0 840,830
Rosetta Stone Inc. COMMON 777780107 26,152 1,988,755 SH   SOLE 0 1,695,166 0 293,589
Royal Caribbean Cruises Ltd. COMMON V7780T103 81,737 694,214 SH   SOLE 0 669,791 0 24,423
Rubicon Technology, Inc. COMMON 78112T206 1,085 156,147 SH   SOLE 0 35,669 0 120,478
Safeguard Scientifics Inc. COMMON 786449207 20,268 1,654,499 SH   SOLE 0 1,485,399 0 169,100
Sanofi-Aventis ADR 80105N105 713 17,790 SH   SOLE 0 17,790 0 0
Schlumberger Ltd. COMMON 806857108 75,598 1,166,990 SH   SOLE 0 539,570 0 627,420
SeaChange Intl, Inc. COMMON 811699107 7,002 2,583,823 SH   SOLE 0 2,252,195 0 331,628
Sempra Energy COMMON 816851109 34,410 309,383 SH   SOLE 0 145,641 0 163,742
Simpson Manufacturing Co., Inc. COMMON 829073105 108,329 1,881,040 SH   SOLE 0 1,735,339 0 145,701
Snap-On, Inc. COMMON 833034101 124,767 845,646 SH   SOLE 0 828,742 0 16,904
Sotheby's COMMON 835898107 21,213 413,419 SH   SOLE 0 370,656 0 42,763
Southern Co. COMMON 842587107 38,320 858,043 SH   SOLE 0 405,205 0 452,838
Spartan Motors Inc. COMMON 846819100 5,300 308,148 SH   SOLE 0 269,822 0 38,326
Stanley Black & Decker, Inc. COMMON 854502101 87,541 571,415 SH   SOLE 0 569,063 0 2,352
Stericycle Inc. COMMON 858912108 40,361 689,586 SH   SOLE 0 686,786 0 2,800
Strattec Security Corp. COMMON 863111100 11,643 315,096 SH   SOLE 0 315,096 0 0
Synacor, Inc. COMMON 871561106 6,481 4,050,912 SH   SOLE 0 4,050,912 0 0
T. Rowe Price Group, Inc. COMMON 74144T108 22,293 206,474 SH   SOLE 0 205,615 0 859
Tapestry, Inc. COMMON 876030107 9,895 188,091 SH   SOLE 0 88,291 0 99,800
Team, Inc. COMMON 878155100 31,967 2,324,853 SH   SOLE 0 1,998,549 0 326,304
TEGNA, Inc. COMMON 87901J105 101,572 8,917,651 SH   SOLE 0 8,570,451 0 347,200
Tejon Ranch Co. COMMON 879080109 13,764 595,590 SH   SOLE 0 565,590 0 30,000
Telenav Inc. COMMON 879455103 21,249 3,934,922 SH   SOLE 0 3,485,617 0 449,305
Tenaris ADR ADR 88031M109 28,493 821,832 SH   SOLE 0 711,158 0 110,674
The Madison Square Garden Co. COMMON 55825T103 92,060 374,533 SH   SOLE 0 348,894 0 25,639
Thermo Fisher Scientific, Inc. COMMON 883556102 70,273 340,370 SH   SOLE 0 338,888 0 1,482
Tractor Supply COMMON 892356106 5,559 88,211 SH   SOLE 0 43,319 0 44,892
TripAdvisor Inc COMMON 896945201 2,466 60,316 SH   SOLE 0 36,014 0 24,302
U.S. Bancorp COMMON 902973304 19,054 377,304 SH   SOLE 0 177,400 0 199,904
U.S. Silica Holdings, Inc. COMMON 90346E103 152,378 5,970,907 SH   SOLE 0 5,645,555 0 325,352
Vanguard FTSE Developed ETF ETF 921943858 45,944 1,038,279 SH   SOLE 0 1,020,231 0 18,048
Vanguard Total World Stock Index Fd (ETF) ETF 922042742 3,029 41,144 SH   SOLE 0 41,144 0 0
Verizon Communications Inc. COMMON 92343V104 46,538 973,197 SH   SOLE 0 456,780 0 516,417
Viacom, Inc. COMMON 92553P201 106,420 3,426,268 SH   SOLE 0 3,334,168 0 92,100
Vical Inc. COMMON 925602203 438 302,328 SH   SOLE 0 69,197 0 233,131
Western Union Co. COMMON 959802109 79,817 4,150,673 SH   SOLE 0 4,089,773 0 60,900
Willis Towers Watson plc COMMON G96629103 61,734 405,638 SH   SOLE 0 403,838 0 1,800
XO Group Inc. COMMON 983772104 10,323 497,487 SH   SOLE 0 434,041 0 63,446
Zebra Technologies Corp. COMMON 989207105 168,394 1,209,817 SH   SOLE 0 1,120,717 0 89,100
Zimmer Biomet Holdings, Inc. COMMON 98956P102 104,189 955,511 SH   SOLE 0 951,611 0 3,900