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 6,748 4,654,119 SH   SOLE 0 2,082,093 0 2,572,026
Acacia Research Corp. COMMON 003881307 19,626 3,413,174 SH   SOLE 0 1,436,189 0 1,976,985
Accenture plc COMMON G1151C101 3,652 30,467 SH   SOLE 0 12,922 0 17,545
AFLAC Inc. COMMON 001055102 116,549 1,609,342 SH   SOLE 0 1,603,328 0 6,014
American Electric Technologies, Inc. COMMON 025576109 2,858 1,329,246 SH   SOLE 0 590,758 0 738,488
American Express Co. COMMON 025816109 65,687 830,330 SH   SOLE 0 303,787 0 526,543
Anixter Intl Inc. COMMON 035290105 115,314 1,454,144 SH   SOLE 0 1,385,681 0 68,463
Ansys, Inc. COMMON 03662Q105 8,770 82,060 SH   SOLE 0 34,812 0 47,248
Apache Corp. COMMON 037411105 4,492 87,418 SH   SOLE 0 87,418 0 0
Aspen Aerogels Inc. COMMON 04523Y105 6,158 1,483,872 SH   SOLE 0 669,187 0 814,685
AstroNova, Inc. COMMON 04638F108 9,788 641,849 SH   SOLE 0 281,064 0 360,785
Atlas Financial Holdings, Inc. COMMON G06207115 15,298 1,120,753 SH   SOLE 0 992,403 0 128,350
AXT Inc. COMMON 00246W103 4,830 832,727 SH   SOLE 0 365,447 0 467,280
Baidu, Inc. ADR ADR 056752108 191,674 1,111,024 SH   SOLE 0 622,608 0 488,416
Ballantyne Strong, Inc. COMMON 058516105 9,405 1,567,437 SH   SOLE 0 691,983 0 875,454
Banco Santander-Chile ADR ADR 05965X109 24,730 986,025 SH   SOLE 0 411,769 0 574,256
Bank of New York Mellon Corp. COMMON 064058100 5,331 112,864 SH   SOLE 0 112,864 0 0
Barrick Gold Corp. COMMON 067901108 8,176 430,524 SH   SOLE 0 430,524 0 0
Bed Bath & Beyond Inc. COMMON 075896100 3,834 97,171 SH   SOLE 0 97,171 0 0
Berkshire Hathaway Inc. COMMON 084670702 80,999 485,956 SH   SOLE 0 202,627 0 283,329
Bio-Rad Laboratories, Inc. COMMON 090572207 134,427 674,360 SH   SOLE 0 636,562 0 37,798
Blackstone Group L.P. COMMON 09253U108 38,294 1,289,376 SH   SOLE 0 1,284,201 0 5,175
BOK Financial Corp. COMMON 05561Q201 18,729 239,292 SH   SOLE 0 218,512 0 20,780
BorgWarner Inc. COMMON 099724106 73,090 1,748,978 SH   SOLE 0 1,741,893 0 7,085
Brady Corp. COMMON 104674106 101,527 2,626,836 SH   SOLE 0 2,455,032 0 171,804
Brink's Co. COMMON 109696104 39,635 741,525 SH   SOLE 0 638,398 0 103,127
Bristow Group Inc. COMMON 110394103 154,542 10,160,521 SH   SOLE 0 9,768,315 0 392,206
Brooks Automation, Inc. COMMON 114340102 7,247 323,510 SH   SOLE 0 323,510 0 0
Canon Inc. ADR ADR 138006309 548 17,529 SH   SOLE 0 17,529 0 0
Capital Southwest Corp. COMMON 140501107 16,110 952,713 SH   SOLE 0 708,022 0 244,691
Cardinal Health, Inc. COMMON 14149Y108 60,901 746,789 SH   SOLE 0 744,152 0 2,637
CBRE Group, Inc. COMMON 12504L109 120,493 3,463,449 SH   SOLE 0 3,386,906 0 76,543
CBS Corp. COMMON 124857202 55,540 800,749 SH   SOLE 0 797,622 0 3,127
CEB Inc. COMMON 125134106 465 5,916 SH   SOLE 0 5,851 0 65
Century Casinos, Inc. COMMON 156492100 25,247 3,339,587 SH   SOLE 0 2,450,828 0 888,759
Charles River Laboratories Intl, Inc. COMMON 159864107 185,335 2,060,420 SH   SOLE 0 1,948,452 0 111,968
Cheesecake Factory Inc. COMMON 163072101 2,858 45,115 SH   SOLE 0 19,071 0 26,044
China Mobile Ltd. ADR ADR 16941M109 54,176 980,913 SH   SOLE 0 745,948 0 234,965
Church & Dwight Co., Inc. COMMON 171340102 1,380 27,666 SH   SOLE 0 12,330 0 15,336
CME Group Inc. COMMON 12572Q105 8,462 71,231 SH   SOLE 0 32,124 0 39,107
Coach, Inc. COMMON 189754104 7,826 189,364 SH   SOLE 0 81,165 0 108,199
Contango Oil & Gas Co. COMMON 21075N204 25,481 3,481,046 SH   SOLE 0 3,148,058 0 332,988
Core Laboratories N.V. COMMON N22717107 36,059 312,146 SH   SOLE 0 208,407 0 103,739
Costco Wholesale Corp. COMMON 22160K105 29,259 174,481 SH   SOLE 0 69,101 0 105,380
Cowen Group, Inc. COMMON 223622606 35,461 2,371,942 SH   SOLE 0 1,712,056 0 659,886
CPI Aerostructures, Inc. COMMON 125919308 7,621 1,128,967 SH   SOLE 0 503,591 0 625,376
CRA International, Inc. COMMON 12618T105 5,755 162,898 SH   SOLE 0 162,898 0 0
Cumberland Pharmaceuticals, Inc. COMMON 230770109 9,668 1,393,125 SH   SOLE 0 619,925 0 773,200
CVS Health Corp. COMMON 126650100 9,081 115,681 SH   SOLE 0 115,681 0 0
DeVry Education Group Inc. COMMON 251893103 73,758 2,080,610 SH   SOLE 0 2,011,995 0 68,615
Digi International Inc. COMMON 253798102 2,419 203,292 SH   SOLE 0 203,292 0 0
Discover Financial Services COMMON 254709108 1,434 20,963 SH   SOLE 0 14 0 20,949
Dover Motorsports, Inc. COMMON 260174107 2,880 1,309,092 SH   SOLE 0 582,416 0 726,676
Dun & Bradstreet Corp. COMMON 26483E100 87,411 809,814 SH   SOLE 0 757,663 0 52,151
Edgewater Technology Inc. COMMON 280358102 10,758 1,444,025 SH   SOLE 0 641,435 0 802,590
Electro Scientific Industries, Inc. COMMON 285229100 3,591 515,247 SH   SOLE 0 515,247 0 0
Emcore Corporation COMMON 290846203 3,989 443,242 SH   SOLE 0 190,042 0 253,200
EOG Resources Inc. COMMON 26875P101 20,426 209,395 SH   SOLE 0 165,277 0 44,118
Expeditors Intl of Washington COMMON 302130109 1,255 22,212 SH   SOLE 0 9,421 0 12,791
Exxon Mobil Corp. COMMON 30231G102 6,972 85,009 SH   SOLE 0 85,009 0 0
Factset Research Systems, Inc. COMMON 303075105 3,862 23,417 SH   SOLE 0 10,677 0 12,740
Fair Isaac Corp. COMMON 303250104 46,202 358,293 SH   SOLE 0 326,364 0 31,929
First American Financial Corp. COMMON 31847R102 216,162 5,503,113 SH   SOLE 0 5,315,612 0 187,501
Fluor Corp. COMMON 343412102 22,956 436,266 SH   SOLE 0 174,135 0 262,131
Franklin Resources, Inc. COMMON 354613101 40,409 958,925 SH   SOLE 0 955,164 0 3,761
FutureFuel Corp. COMMON 36116M106 3,847 271,300 SH   SOLE 0 271,300 0 0
Gaia, Inc. COMMON 36269P104 5,198 522,433 SH   SOLE 0 522,433 0 0
Gilead Sciences, Inc. COMMON 375558103 122,270 1,800,201 SH   SOLE 0 763,157 0 1,037,044
GlassBridge Enterprises Inc. COMMON 377185103 3,642 755,589 SH   SOLE 0 551,859 0 203,730
GlaxoSmithKline plc ADR ADR 37733W105 69,402 1,646,146 SH   SOLE 0 979,354 0 666,792
Glu Mobile Inc. COMMON 379890106 6,014 2,649,500 SH   SOLE 0 2,649,500 0 0
Goldman Sachs Group, Inc. COMMON 38141G104 5,698 24,805 SH   SOLE 0 24,805 0 0
Graham Holdings Co. COMMON 384637104 13,914 23,207 SH   SOLE 0 22,577 0 630
Green Brick Partners Inc. COMMON 392709101 4,977 500,200 SH   SOLE 0 500,200 0 0
GSI Technology Inc. COMMON 36241U106 10,691 1,228,843 SH   SOLE 0 897,333 0 331,510
Gulf Island Fabrication, Inc. COMMON 402307102 6,312 546,471 SH   SOLE 0 546,471 0 0
Hanger, Inc. COMMON 41043F208 5,844 438,100 SH   SOLE 0 438,100 0 0
Hardinge Inc. COMMON 412324303 4,129 367,390 SH   SOLE 0 160,173 0 207,217
Horace Mann Educators Corp. COMMON 440327104 13,371 325,720 SH   SOLE 0 280,815 0 44,905
Houlihan Lokey, Inc. COMMON 441593100 53,974 1,566,735 SH   SOLE 0 1,559,043 0 7,692
IDEX Corp. COMMON 45167R104 18,342 196,152 SH   SOLE 0 168,534 0 27,618
Illinois Tool Works Inc. COMMON 452308109 89,200 673,358 SH   SOLE 0 670,721 0 2,637
IntercontinentalExchange, Inc. COMMON 45866F104 1,236 20,652 SH   SOLE 0 8,757 0 11,895
Interface, Inc. COMMON 458665304 22,915 1,202,898 SH   SOLE 0 1,033,828 0 169,070
International Business Machines Corp. COMMON 459200101 9,238 53,047 SH   SOLE 0 53,047 0 0
International Speedway Corp. COMMON 460335201 110,805 2,998,778 SH   SOLE 0 2,850,253 0 148,525
Interpublic Group of Cos., Inc. COMMON 460690100 184,704 7,517,443 SH   SOLE 0 7,378,440 0 139,003
ISHARES MSCI ACWI EX US ETF ETF 464288240 11,367 260,590 SH   SOLE 0 41,169 0 219,421
iShares MSCI Switzerland Capped ETF ETF 464286749 603 18,854 SH   SOLE 0 18,854 0 0
iShares MSCI United Kingdom Index ETF ETF 46435G334 325 9,974 SH   SOLE 0 0 0 9,974
Itau Unibanco Holding SA ADR ADR 465562106 350 29,023 SH   SOLE 0 11,732 0 17,291
J.M. Smucker Co. COMMON 832696405 136,755 1,043,291 SH   SOLE 0 1,025,959 0 17,332
Janus Capital Group Inc. COMMON 47102X105 92,413 7,001,000 SH   SOLE 0 6,608,545 0 392,455
JLL COMMON 48020Q107 157,189 1,410,396 SH   SOLE 0 1,344,180 0 66,216
Johnson & Johnson COMMON 478160104 111,113 892,116 SH   SOLE 0 412,929 0 479,187
JPMorgan Chase & Co. COMMON 46625H100 7,282 82,905 SH   SOLE 0 82,905 0 0
Kennametal Inc. COMMON 489170100 226,710 5,778,984 SH   SOLE 0 5,509,640 0 269,344
Keysight Technologies, Inc. COMMON 49338L103 134,541 3,722,785 SH   SOLE 0 3,551,940 0 170,845
Kindred Biosciences, Inc. COMMON 494577109 20,983 2,976,322 SH   SOLE 0 2,223,678 0 752,644
KKR & Co. L.P. COMMON 48248M102 159,204 8,733,093 SH   SOLE 0 8,724,267 0 8,826
Laboratory Corp. of America Holdings COMMON 50540R409 200,335 1,396,357 SH   SOLE 0 1,374,410 0 21,947
Landec Corp. COMMON 514766104 8,059 671,578 SH   SOLE 0 492,529 0 179,049
Lazard Ltd. COMMON G54050102 276,903 6,020,949 SH   SOLE 0 5,815,713 0 205,236
LG Display Co Ltd - ADR ADR 50186V102 237 17,402 SH   SOLE 0 17,402 0 0
Littelfuse, Inc. COMMON 537008104 70,200 439,000 SH   SOLE 0 410,755 0 28,245
Lockheed Martin Corp. COMMON 539830109 8,943 33,419 SH   SOLE 0 33,419 0 0
Lumber Liquidators Holdings, Inc. COMMON 55003T107 9,288 442,491 SH   SOLE 0 384,266 0 58,225
Manhattan Associates Inc COMMON 562750109 3,825 73,496 SH   SOLE 0 31,158 0 42,338
Manning & Napier, Inc. COMMON 56382Q102 7,305 1,281,586 SH   SOLE 0 1,099,746 0 181,840
Mattel, Inc. COMMON 577081102 129,928 5,073,346 SH   SOLE 0 4,989,203 0 84,143
Matthews Intl Corp. COMMON 577128101 13,801 204,000 SH   SOLE 0 176,675 0 27,325
MB Financial, Inc. COMMON 55264U108 4,496 104,996 SH   SOLE 0 104,996 0 0
Meredith Corp. COMMON 589433101 98,273 1,521,258 SH   SOLE 0 1,430,919 0 90,339
Microsoft Corp. COMMON 594918104 167,841 2,548,452 SH   SOLE 0 1,150,881 0 1,397,571
Mitcham Industries, Inc. COMMON 606501104 13,693 2,794,526 SH   SOLE 0 2,216,945 0 577,581
Mohawk Industries, Inc. COMMON 608190104 58,502 254,923 SH   SOLE 0 245,238 0 9,685
Mosaic Co. COMMON 61945C103 6,580 225,512 SH   SOLE 0 225,512 0 0
Movado Group Inc. COMMON 624580106 4,995 200,200 SH   SOLE 0 200,200 0 0
MSG Networks, Inc. COMMON 553573106 145,969 6,251,368 SH   SOLE 0 6,028,201 0 223,167
MTS Systems Corp. COMMON 553777103 98,901 1,796,566 SH   SOLE 0 1,662,000 0 134,566
National Oilwell Varco COMMON 637071101 63,258 1,577,892 SH   SOLE 0 1,572,512 0 5,380
Nielsen Holdings Plc COMMON G6518L108 51,166 1,238,592 SH   SOLE 0 1,233,723 0 4,869
Nippon Telegraph & Telephone ADR ADR 654624105 2,394 55,882 SH   SOLE 0 46,640 0 9,242
Nokia Corp. ADR ADR 654902204 175,462 32,372,988 SH   SOLE 0 20,670,152 0 11,702,836
Nordstrom, Inc. COMMON 655664100 56,610 1,215,593 SH   SOLE 0 1,208,251 0 7,342
Northern Trust Corp. COMMON 665859104 180,117 2,080,359 SH   SOLE 0 2,063,789 0 16,570
Novartis AG ADR ADR 66987V109 3,620 48,737 SH   SOLE 0 42,226 0 6,511
NTT Docomo Inc. ADR ADR 62942M201 1,174 50,297 SH   SOLE 0 50,297 0 0
Occidental Petroleum Corp. COMMON 674599105 24,412 385,286 SH   SOLE 0 217,038 0 168,248
Omnicom Group Inc. COMMON 681919106 95,400 1,106,597 SH   SOLE 0 1,102,441 0 4,156
Oracle Corp. COMMON 68389X105 9,106 204,135 SH   SOLE 0 204,135 0 0
ORBCOMM, Inc. COMMON 68555P100 33,881 3,547,741 SH   SOLE 0 2,600,183 0 947,558
Orion Energy Systems, Inc. COMMON 686275108 9,428 4,761,584 SH   SOLE 0 3,386,421 0 1,375,163
PCTEL, Inc. COMMON 69325Q105 19,249 2,703,541 SH   SOLE 0 1,896,135 0 807,406
Pendrell Corp. COMMON 70686R302 18,127 2,788,835 SH   SOLE 0 2,067,129 0 721,706
Perceptron, Inc. COMMON 71361F100 10,898 1,306,697 SH   SOLE 0 572,724 0 733,973
Philip Morris Intl, Inc. COMMON 718172109 107,297 950,373 SH   SOLE 0 552,056 0 398,317
PPG Industries COMMON 693506107 1,273 12,113 SH   SOLE 0 5,123 0 6,990
Progressive Corp. COMMON 743315103 59,591 1,520,958 SH   SOLE 0 1,511,974 0 8,984
Quest Diagnostics Inc. COMMON 74834L100 21,662 220,617 SH   SOLE 0 93,534 0 127,083
RealNetworks, Inc. COMMON 75605L708 31,612 6,531,379 SH   SOLE 0 4,812,190 0 1,719,189
Richardson Electronics, Ltd. COMMON 763165107 3,280 544,864 SH   SOLE 0 237,134 0 307,730
Rosetta Stone Inc. COMMON 777780107 42,619 4,371,194 SH   SOLE 0 3,351,991 0 1,019,203
Royal Caribbean Cruises Ltd. COMMON V7780T103 96,525 983,843 SH   SOLE 0 950,159 0 33,684
Rubicon Technology, Inc. COMMON 78112T107 2,056 2,467,591 SH   SOLE 0 1,088,309 0 1,379,282
Ryanair Holdings plc ADR ADR 783513203 3,852 46,417 SH   SOLE 0 45,418 0 999
Safeguard Scientifics Inc. COMMON 786449207 8,055 634,282 SH   SOLE 0 474,058 0 160,224
Sanofi-Aventis ADR 80105N105 805 17,794 SH   SOLE 0 17,794 0 0
Santander Mexico Financial Group ADR ADR 40053C105 5,283 585,081 SH   SOLE 0 239,724 0 345,357
Schlumberger Ltd. COMMON 806857108 23,343 298,888 SH   SOLE 0 115,153 0 183,735
SeaChange Intl, Inc. COMMON 811699107 11,449 4,616,607 SH   SOLE 0 3,378,755 0 1,237,852
Sempra Energy COMMON 816851109 25,565 231,354 SH   SOLE 0 98,204 0 133,150
Simpson Manufacturing Co., Inc. COMMON 829073105 75,598 1,754,423 SH   SOLE 0 1,644,180 0 110,243
Snap-On Inc. COMMON 833034101 108,223 641,624 SH   SOLE 0 629,234 0 12,390
Sotheby's COMMON 835898107 24,643 541,844 SH   SOLE 0 495,156 0 46,688
Southern Co. COMMON 842587107 30,344 609,568 SH   SOLE 0 249,666 0 359,902
Spartan Motors Inc. COMMON 846819100 8,897 1,112,075 SH   SOLE 0 814,880 0 297,195
Stanley Black & Decker, Inc. COMMON 854502101 108,203 814,351 SH   SOLE 0 811,458 0 2,893
Strattec Security Corp. COMMON 863111100 4,228 152,097 SH   SOLE 0 152,097 0 0
T. Rowe Price Group, Inc. COMMON 74144T108 19,710 289,220 SH   SOLE 0 288,145 0 1,075
Team, Inc. COMMON 878155100 50,316 1,860,103 SH   SOLE 0 1,601,524 0 258,579
TechTarget, Inc. COMMON 87874R100 8,270 915,788 SH   SOLE 0 915,788 0 0
TEGNA, Inc. COMMON 87901J105 140,960 5,501,965 SH   SOLE 0 5,269,057 0 232,908
Telenav Inc. COMMON 879455103 21,133 2,443,117 SH   SOLE 0 1,788,802 0 654,315
Tenaris ADR ADR 88031M109 11,695 342,574 SH   SOLE 0 298,906 0 43,668
The Madison Square Garden Co. COMMON 55825T103 86,551 433,379 SH   SOLE 0 407,572 0 25,807
Thermo Fisher Scientific Inc. COMMON 883556102 71,178 463,398 SH   SOLE 0 461,591 0 1,807
Tiffany & Co. COMMON 886547108 32,607 342,147 SH   SOLE 0 340,828 0 1,319
Toyota Motor Corp. ADR ADR 892331307 620 5,708 SH   SOLE 0 5,708 0 0
Tractor Supply COMMON 892356106 4,567 66,210 SH   SOLE 0 26,172 0 40,038
TripAdvisor Inc COMMON 896945201 3,061 70,930 SH   SOLE 0 30,079 0 40,851
U.S. Bancorp COMMON 902973304 17,500 339,811 SH   SOLE 0 144,508 0 195,303
U.S. Silica Holdings, Inc. COMMON 90346E103 62,611 1,304,675 SH   SOLE 0 1,206,176 0 98,499
Union Pacific COMMON 907818108 1,211 11,432 SH   SOLE 0 4,847 0 6,585
Vanguard FTSE Developed ETF ETF 921943858 41,260 1,049,865 SH   SOLE 0 1,031,030 0 18,835
Vanguard S&P 500 ETF ETF 922908363 4,606 21,290 SH   SOLE 0 0 0 21,290
Vanguard Total World Stock Index Fd (ETF) ETF 922042742 5,835 89,465 SH   SOLE 0 37,506 0 51,959
Varian Medical Systems Inc. COMMON 92220P105 1,906 20,918 SH   SOLE 0 7,326 0 13,592
Verizon Communications Inc. COMMON 92343V104 34,329 704,179 SH   SOLE 0 298,777 0 405,402
Versar Inc. COMMON 925297103 2,885 1,727,471 SH   SOLE 0 780,420 0 947,051
Viacom, Inc. COMMON 92553P201 157,928 3,387,566 SH   SOLE 0 3,318,177 0 69,389
Vical Inc. COMMON 925602203 770 343,613 SH   SOLE 0 153,148 0 190,465
West Marine, Inc. COMMON 954235107 5,164 541,296 SH   SOLE 0 541,296 0 0
Western Union Co. COMMON 959802109 104,751 5,147,459 SH   SOLE 0 5,072,512 0 74,947
Willis Towers Watson COMMON G96629103 65,688 501,860 SH   SOLE 0 499,932 0 1,928
XO Group Inc. COMMON 983772104 17,741 1,030,831 SH   SOLE 0 758,554 0 272,277
Zebra Technologies Corp. COMMON 989207105 174,014 1,907,004 SH   SOLE 0 1,797,504 0 109,500
Zimmer Biomet Holdings, Inc. COMMON 98956P102 131,501 1,076,908 SH   SOLE 0 1,072,952 0 3,956