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
Acacia Research Corp. COMMON 003881307 22,212 3,406,693 SH   SOLE 0 3,406,693 0 0
Accenture plc COMMON G1151C101 1,170 9,576 SH   SOLE 0 9,576 0 0
AFLAC Inc. COMMON 001055102 117,492 1,634,782 SH   SOLE 0 1,628,762 0 6,020
American Electric Technologies, Inc. COMMON 025576109 3,615 1,506,160 SH   SOLE 0 956,768 0 549,392
American Express Co. COMMON 025816109 51,070 797,470 SH   SOLE 0 797,470 0 0
Anixter Intl Inc. COMMON 035290105 170,633 2,645,472 SH   SOLE 0 2,487,309 0 158,163
Ansys, Inc. COMMON 03662Q105 16,901 182,494 SH   SOLE 0 182,494 0 0
Apache Corp. COMMON 037411105 4,919 77,018 SH   SOLE 0 77,018 0 0
ArcBest Corp. COMMON 03937C105 3,586 188,520 SH   SOLE 0 188,520 0 0
Aspen Aerogels Inc. COMMON 04523Y105 4,302 721,737 SH   SOLE 0 459,475 0 262,262
AstroNova, Inc. COMMON 04638F108 13,056 882,174 SH   SOLE 0 564,299 0 317,875
AXT Inc. COMMON 00246W103 10,545 2,031,875 SH   SOLE 0 1,298,895 0 732,980
Baidu, Inc. ADR ADR 056752108 180,007 988,668 SH   SOLE 0 944,380 0 44,288
Ballantyne Strong, Inc. COMMON 058516105 13,007 1,858,160 SH   SOLE 0 1,193,745 0 664,415
Banco Santander-Chile ADR ADR 05965X109 23,100 1,116,464 SH   SOLE 0 1,012,545 0 103,919
Bank of New York Mellon Corp. COMMON 064058100 4,505 112,970 SH   SOLE 0 112,970 0 0
Barrick Gold Corp. COMMON 067901108 5,545 312,916 SH   SOLE 0 312,916 0 0
Bed Bath & Beyond Inc. COMMON 075896100 4,192 97,240 SH   SOLE 0 97,240 0 0
Berkshire Hathaway Inc. COMMON 084670702 60,051 415,662 SH   SOLE 0 415,662 0 0
Bio-Rad Laboratories, Inc. COMMON 090572207 156,938 958,046 SH   SOLE 0 889,812 0 68,234
Blackstone Group L.P. COMMON 09253U108 36,295 1,421,642 SH   SOLE 0 1,416,467 0 5,175
BOK Financial Corp. COMMON 05561Q201 17,259 250,242 SH   SOLE 0 226,256 0 23,986
BorgWarner Inc. COMMON 099724106 58,708 1,668,778 SH   SOLE 0 1,662,000 0 6,778
Brady Corp. COMMON 104674106 129,201 3,733,043 SH   SOLE 0 3,339,588 0 393,455
Brink's Co. COMMON 109696104 41,848 1,128,582 SH   SOLE 0 968,577 0 160,005
Bristow Group Inc. COMMON 110394103 145,723 10,393,910 SH   SOLE 0 9,781,296 0 612,614
British American Tobacco plc ADR ADR 110448107 9,149 71,669 SH   SOLE 0 68,667 0 3,002
Brooks Automation, Inc. COMMON 114340102 11,106 816,000 SH   SOLE 0 816,000 0 0
Canon Inc. ADR ADR 138006309 511 17,606 SH   SOLE 0 17,606 0 0
Capital Southwest Corp. COMMON 140501107 12,455 847,268 SH   SOLE 0 685,468 0 161,800
CBRE Group, Inc. COMMON 12504L109 107,259 3,833,411 SH   SOLE 0 3,613,501 0 219,910
CBS Corp. COMMON 124857202 65,930 1,204,426 SH   SOLE 0 1,200,179 0 4,247
CEB Inc. COMMON 125134106 23,714 435,367 SH   SOLE 0 371,217 0 64,150
Century Casinos, Inc. COMMON 156492100 25,715 3,721,469 SH   SOLE 0 2,896,110 0 825,359
Charles River Laboratories Intl, Inc. COMMON 159864107 118,913 1,426,842 SH   SOLE 0 1,266,013 0 160,829
China Mobile Ltd. ADR ADR 16941M109 46,912 762,548 SH   SOLE 0 762,548 0 0
CME Group Inc. COMMON 12572Q105 3,113 29,788 SH   SOLE 0 29,788 0 0
Coach, Inc. COMMON 189754104 6,855 187,510 SH   SOLE 0 187,510 0 0
Contango Oil & Gas Co. COMMON 21075N204 39,089 3,824,759 SH   SOLE 0 3,380,818 0 443,941
Core Laboratories N.V. COMMON N22717107 29,501 262,624 SH   SOLE 0 262,624 0 0
Costco Wholesale Corp. COMMON 22160K105 11,540 75,667 SH   SOLE 0 75,667 0 0
Cowen Group, Inc. COMMON 223622101 44,008 12,123,459 SH   SOLE 0 9,459,450 0 2,664,009
CPI Aerostructures, Inc. COMMON 125919308 11,323 1,650,515 SH   SOLE 0 1,053,339 0 597,176
CRA International, Inc. COMMON 12618T105 4,536 170,600 SH   SOLE 0 170,600 0 0
Crown Crafts, Inc. COMMON 228309100 5,859 574,455 SH   SOLE 0 367,444 0 207,011
Cumberland Pharmaceuticals, Inc. COMMON 230770109 10,269 2,049,760 SH   SOLE 0 1,308,960 0 740,800
DeVry Education Group Inc. COMMON 251893103 50,376 2,184,576 SH   SOLE 0 2,031,761 0 152,815
Digi International Inc. COMMON 253798102 4,000 350,838 SH   SOLE 0 350,838 0 0
Discover Financial Services COMMON 254709108 1,185 20,963 SH   SOLE 0 20,963 0 0
Dover Motorsports, Inc. COMMON 260174107 6,924 2,803,243 SH   SOLE 0 1,784,930 0 1,018,313
Dun & Bradstreet Corp. COMMON 26483E100 105,313 770,846 SH   SOLE 0 702,589 0 68,257
Edgewater Technology Inc. COMMON 280358102 15,146 1,781,915 SH   SOLE 0 1,141,837 0 640,078
Electro Scientific Industries, Inc. COMMON 285229100 2,869 508,747 SH   SOLE 0 508,747 0 0
Emcore Corporation COMMON 290846203 5,604 983,234 SH   SOLE 0 627,034 0 356,200
EOG Resources Inc. COMMON 26875P101 24,650 254,890 SH   SOLE 0 254,890 0 0
Exxon Mobil Corp. COMMON 30231G102 5,823 66,717 SH   SOLE 0 66,717 0 0
Fair Isaac Corp. COMMON 303250104 49,017 393,429 SH   SOLE 0 343,703 0 49,726
Fastenal Co. COMMON 311900104 1,791 42,869 SH   SOLE 0 42,869 0 0
First American Financial Corp. COMMON 31847R102 216,366 5,508,306 SH   SOLE 0 5,214,128 0 294,178
Fluor Corp. COMMON 343412102 13,834 269,566 SH   SOLE 0 269,566 0 0
Franklin Resources, Inc. COMMON 354613101 64,645 1,817,416 SH   SOLE 0 1,811,619 0 5,797
FutureFuel Corp. COMMON 36116M106 3,092 274,100 SH   SOLE 0 274,100 0 0
Gaia, Inc. COMMON 36269P104 9,611 1,334,879 SH   SOLE 0 1,334,879 0 0
Gannett Co. Inc. COMMON 36473H104 5,941 510,371 SH   SOLE 0 433,629 0 76,742
Gilead Sciences, Inc. COMMON 375558103 121,254 1,532,528 SH   SOLE 0 1,532,528 0 0
GlaxoSmithKline plc ADR ADR 37733W105 69,340 1,607,697 SH   SOLE 0 1,475,642 0 132,055
Glu Mobile Inc. COMMON 379890106 5,083 2,269,400 SH   SOLE 0 2,269,400 0 0
Goldman Sachs Group, Inc. COMMON 38141G104 5,453 33,810 SH   SOLE 0 33,810 0 0
Graham Holdings Co. COMMON 384637104 11,682 24,268 SH   SOLE 0 22,571 0 1,697
Green Brick Partners Inc. COMMON 392709101 2,535 306,862 SH   SOLE 0 306,862 0 0
Gulf Island Fabrication, Inc. COMMON 402307102 7,212 783,900 SH   SOLE 0 783,900 0 0
Hanger, Inc. COMMON 41043F208 1,929 226,895 SH   SOLE 0 226,895 0 0
Hardinge Inc. COMMON 412324303 6,077 545,977 SH   SOLE 0 351,760 0 194,217
Harman Intl Industries, Inc. COMMON 413086109 106,662 1,263,018 SH   SOLE 0 1,263,018 0 0
Harris & Harris Group, Inc. COMMON 413833104 6,788 4,883,158 SH   SOLE 0 3,103,437 0 1,779,721
Horace Mann Educators Corp. COMMON 440327104 13,408 365,837 SH   SOLE 0 310,457 0 55,380
Houlihan Lokey, Inc. COMMON 441593100 26,362 1,052,361 SH   SOLE 0 1,044,688 0 7,673
IDEX Corp. COMMON 45167R104 23,923 255,668 SH   SOLE 0 207,955 0 47,713
Illinois Tool Works Inc. COMMON 452308109 95,960 800,732 SH   SOLE 0 797,889 0 2,843
Imation Corp. COMMON 45245A107 5,096 8,055,966 SH   SOLE 0 6,164,138 0 1,891,828
Interface, Inc. COMMON 458665304 13,112 785,599 SH   SOLE 0 664,869 0 120,730
International Business Machines Corp. COMMON 459200101 8,369 52,688 SH   SOLE 0 52,688 0 0
International Speedway Corp. COMMON 460335201 128,324 3,839,731 SH   SOLE 0 3,534,259 0 305,472
Interpublic Group of Cos., Inc. COMMON 460690100 171,585 7,677,162 SH   SOLE 0 7,344,444 0 332,718
ISHARES MSCI ACWI EX US ETF ETF 464288240 3,174 76,514 SH   SOLE 0 60,613 0 15,901
iShares MSCI Switzerland Capped ETF ETF 464286749 1,602 52,452 SH   SOLE 0 52,452 0 0
iShares MSCI United Kingdom Index ETF ETF 46434V548 531 33,502 SH   SOLE 0 0 0 33,502
Itau Unibanco Holding SA ADR ADR 465562106 4,461 407,765 SH   SOLE 0 348,772 0 58,993
J.M. Smucker Co. COMMON 832696405 147,714 1,089,815 SH   SOLE 0 1,044,530 0 45,285
Janus Capital Group Inc. COMMON 47102X105 103,459 7,384,638 SH   SOLE 0 6,623,771 0 760,867
JLL COMMON 48020Q107 169,418 1,488,867 SH   SOLE 0 1,379,577 0 109,290
Johnson & Johnson COMMON 478160104 101,420 858,549 SH   SOLE 0 858,549 0 0
JPMorgan Chase & Co. COMMON 46625H100 5,452 81,873 SH   SOLE 0 81,873 0 0
Kennametal Inc. COMMON 489170100 271,046 9,339,969 SH   SOLE 0 8,782,711 0 557,258
Kindred Biosciences, Inc. COMMON 494577109 19,137 3,835,163 SH   SOLE 0 2,976,170 0 858,993
KKR & Co. L.P. COMMON 48248M102 152,021 10,660,683 SH   SOLE 0 10,649,513 0 11,170
Laboratory Corp. of America Holdings COMMON 50540R409 197,806 1,438,798 SH   SOLE 0 1,386,352 0 52,446
Landec Corp. COMMON 514766104 15,563 1,160,586 SH   SOLE 0 902,769 0 257,817
Lazard Ltd. COMMON G54050102 237,841 6,541,286 SH   SOLE 0 6,166,753 0 374,533
Littelfuse, Inc. COMMON 537008104 76,518 594,034 SH   SOLE 0 546,404 0 47,630
Lockheed Martin Corp. COMMON 539830109 7,850 32,745 SH   SOLE 0 32,745 0 0
Lumber Liquidators Holdings, Inc. COMMON 55003T107 9,553 485,683 SH   SOLE 0 413,608 0 72,075
Manning & Napier, Inc. COMMON 56382Q102 9,981 1,407,774 SH   SOLE 0 1,186,009 0 221,765
Mattel, Inc. COMMON 577081102 114,318 3,775,361 SH   SOLE 0 3,609,646 0 165,715
Matthews Intl Corp. COMMON 577128101 15,603 256,796 SH   SOLE 0 218,196 0 38,600
MB Financial, Inc. COMMON 55264U108 4,287 112,700 SH   SOLE 0 112,700 0 0
McCormick & Co., Inc. COMMON 579780206 4,095 40,978 SH   SOLE 0 24,948 0 16,030
Meredith Corp. COMMON 589433101 94,273 1,813,300 SH   SOLE 0 1,627,152 0 186,148
Microsoft Corp. COMMON 594918104 144,940 2,516,316 SH   SOLE 0 2,516,316 0 0
Mitcham Industries, Inc. COMMON 606501104 9,925 2,975,304 SH   SOLE 0 2,366,511 0 608,793
Mohawk Industries, Inc. COMMON 608190104 55,223 275,647 SH   SOLE 0 249,635 0 26,012
Morgan Stanley COMMON 617446448 7,882 245,842 SH   SOLE 0 245,842 0 0
Mosaic Co. COMMON 61945C103 5,019 205,197 SH   SOLE 0 205,197 0 0
Movado Group Inc. COMMON 624580106 3,559 165,700 SH   SOLE 0 165,700 0 0
MSG Networks, Inc. COMMON 553573106 122,034 6,557,430 SH   SOLE 0 6,103,966 0 453,464
MTS Systems Corp. COMMON 553777103 77,142 1,675,914 SH   SOLE 0 1,514,798 0 161,116
National Oilwell Varco COMMON 637071101 62,873 1,711,291 SH   SOLE 0 1,706,011 0 5,280
Nippon Telegraph & Telephone ADR ADR 654624105 211 4,604 SH   SOLE 0 74 0 4,530
Nokia Corp. ADR ADR 654902204 120,344 20,784,782 SH   SOLE 0 20,784,782 0 0
Nordstrom, Inc. COMMON 655664100 58,721 1,131,857 SH   SOLE 0 1,123,338 0 8,519
Northern Trust Corp. COMMON 665859104 169,226 2,488,981 SH   SOLE 0 2,423,596 0 65,385
Novartis AG ADR ADR 66987V109 1,099 13,914 SH   SOLE 0 12,292 0 1,622
Occidental Petroleum Corp. COMMON 674599105 4,455 61,088 SH   SOLE 0 61,088 0 0
Omnicom Group Inc. COMMON 681919106 102,661 1,207,774 SH   SOLE 0 1,203,613 0 4,161
Oracle Corp. COMMON 68389X105 8,025 204,295 SH   SOLE 0 204,295 0 0
ORBCOMM, Inc. COMMON 68555P100 30,389 2,964,735 SH   SOLE 0 2,318,877 0 645,858
Orion Energy Systems, Inc. COMMON 686275108 7,334 5,514,400 SH   SOLE 0 4,311,473 0 1,202,927
PCTEL, Inc. COMMON 69325Q105 17,916 3,386,715 SH   SOLE 0 2,579,309 0 807,406
Pendrell Corp. COMMON 70686R104 22,675 33,096,673 SH   SOLE 0 25,879,589 0 7,217,084
Perceptron, Inc. COMMON 71361F100 11,134 1,656,804 SH   SOLE 0 1,059,128 0 597,676
Philip Morris Intl, Inc. COMMON 718172109 44,058 453,174 SH   SOLE 0 453,174 0 0
PrivateBancorp, Inc. COMMON 742962103 9,437 205,510 SH   SOLE 0 174,590 0 30,920
Progressive Corp. COMMON 743315103 53,594 1,701,394 SH   SOLE 0 1,692,410 0 8,984
Quest Diagnostics Inc. COMMON 74834L100 34,274 404,984 SH   SOLE 0 404,984 0 0
Qumu Corp. COMMON 749063103 4,085 1,799,618 SH   SOLE 0 1,149,294 0 650,324
RealNetworks, Inc. COMMON 75605L708 32,057 7,187,763 SH   SOLE 0 5,635,363 0 1,552,400
Rentech, Inc. COMMON 760112201 7,276 2,491,679 SH   SOLE 0 1,587,603 0 904,076
Richardson Electronics, Ltd. COMMON 763165107 6,873 1,013,663 SH   SOLE 0 647,520 0 366,143
Rockwell Collins, Inc. COMMON 774341101 50,158 594,714 SH   SOLE 0 594,714 0 0
Rosetta Stone Inc. COMMON 777780107 45,382 5,351,617 SH   SOLE 0 4,275,717 0 1,075,900
Royal Caribbean Cruises Ltd. COMMON V7780T103 79,146 1,055,980 SH   SOLE 0 967,180 0 88,800
Rubicon Technology, Inc. COMMON 78112T107 2,370 3,760,729 SH   SOLE 0 2,408,647 0 1,352,082
Ryanair Holdings plc ADR ADR 783513203 10,521 140,229 SH   SOLE 0 125,936 0 14,293
Santander Mexico Financial Group ADR ADR 40053C105 4,391 498,991 SH   SOLE 0 428,860 0 70,131
Schlumberger Ltd. COMMON 806857108 22,633 287,810 SH   SOLE 0 287,810 0 0
SeaChange Intl, Inc. COMMON 811699107 14,470 4,839,364 SH   SOLE 0 3,781,142 0 1,058,222
Sempra Energy COMMON 816851109 10,686 99,695 SH   SOLE 0 99,695 0 0
Simpson Manufacturing Co., Inc. COMMON 829073105 108,152 2,460,804 SH   SOLE 0 2,198,641 0 262,163
Snap-On Inc. COMMON 833034101 100,526 661,531 SH   SOLE 0 632,844 0 28,687
Sotheby's COMMON 835898107 24,977 656,940 SH   SOLE 0 576,498 0 80,442
Southern Co. COMMON 842587107 28,943 564,193 SH   SOLE 0 564,193 0 0
Spartan Motors Inc. COMMON 846819100 17,095 1,784,414 SH   SOLE 0 1,381,809 0 402,605
St. Jude Medical, Inc. COMMON 790849103 7,537 94,498 SH   SOLE 0 94,498 0 0
Stanley Black & Decker, Inc. COMMON 854502101 124,055 1,008,738 SH   SOLE 0 1,005,937 0 2,801
Strattec Security Corp. COMMON 863111100 4,314 122,197 SH   SOLE 0 122,197 0 0
Superior Industries Intl, Inc. COMMON 868168105 6,062 207,900 SH   SOLE 0 207,900 0 0
T. Rowe Price Group, Inc. COMMON 74144T108 23,472 352,967 SH   SOLE 0 351,788 0 1,179
Team, Inc. COMMON 878155100 62,731 1,917,778 SH   SOLE 0 1,628,192 0 289,586
TechTarget, Inc. COMMON 87874R100 4,057 503,369 SH   SOLE 0 503,369 0 0
TEGNA, Inc. COMMON 87901J105 135,595 6,202,888 SH   SOLE 0 5,762,564 0 440,324
Telenav Inc. COMMON 879455103 23,155 4,041,034 SH   SOLE 0 3,173,534 0 867,500
Tenaris ADR ADR 88031M109 7,130 251,039 SH   SOLE 0 227,592 0 23,447
The Madison Square Garden Co. COMMON 55825T103 80,805 476,978 SH   SOLE 0 435,827 0 41,151
The PNC Financial Service Group, Inc. COMMON 693475105 3,013 33,445 SH   SOLE 0 33,445 0 0
Thermo Fisher Scientific Inc. COMMON 883556102 83,688 526,143 SH   SOLE 0 524,233 0 1,910
Tiffany & Co. COMMON 886547108 51,271 705,916 SH   SOLE 0 703,581 0 2,335
Toyota Motor Corp. ADR ADR 892331307 665 5,726 SH   SOLE 0 5,726 0 0
U.S. Bancorp COMMON 902973304 21,431 499,677 SH   SOLE 0 499,677 0 0
U.S. Silica Holdings, Inc. COMMON 90346E103 87,823 1,886,231 SH   SOLE 0 1,713,064 0 173,167
Union Pacific COMMON 907818108 1,372 14,068 SH   SOLE 0 14,068 0 0
Vanguard FTSE Developed ETF ETF 921943858 18,127 484,548 SH   SOLE 0 484,548 0 0
Vanguard S&P 500 ETF ETF 922908363 13,089 65,876 SH   SOLE 0 65,876 0 0
Vanguard Total World Stock Index Fd (ETF) ETF 922042742 14,712 241,772 SH   SOLE 0 241,772 0 0
Varian Medical Systems Inc. COMMON 92220P105 2,485 24,968 SH   SOLE 0 24,968 0 0
Verizon Communications Inc. COMMON 92343V104 40,690 782,809 SH   SOLE 0 782,809 0 0
Versar Inc. COMMON 925297103 2,803 1,796,673 SH   SOLE 0 1,141,978 0 654,695
Viacom, Inc. COMMON 92553P201 122,495 3,215,086 SH   SOLE 0 3,075,891 0 139,195
Vical Inc. COMMON 925602203 1,611 529,913 SH   SOLE 0 339,448 0 190,465
W.W. Grainger, Inc. COMMON 384802104 1,642 7,303 SH   SOLE 0 7,303 0 0
West Marine, Inc. COMMON 954235107 3,218 389,064 SH   SOLE 0 389,064 0 0
Western Union Co. COMMON 959802109 129,228 6,206,933 SH   SOLE 0 5,999,648 0 207,285
Willis Towers Watson plc COMMON G96629103 54,451 410,119 SH   SOLE 0 408,596 0 1,523
XO Group Inc. COMMON 983772104 22,660 1,172,273 SH   SOLE 0 917,696 0 254,577
Zebra Technologies Corp. COMMON 989207105 160,203 2,301,441 SH   SOLE 0 2,075,691 0 225,750
Zimmer Biomet Holdings, Inc. COMMON 98956P102 130,690 1,005,150 SH   SOLE 0 1,001,597 0 3,553