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Filing Detail
Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001144204-11-008022
Filing Date
2011-02-14
Accepted
2011-02-14 10:51:03
Documents
3
Group Members
JAMES D. OBERWEISJAMES W. OBERWEIS

Document Format Files

Seq Description Document Type Size
1 v210136_sc13g-a.htm SC 13G/A 108688
2 v210136_ex99-1.htm EX-99.1 7080
4 GRAPHIC logo.jpg GRAPHIC 5199
  Complete submission text file 0001144204-11-008022.txt   125070
Mailing Address 8302 DUNWOODY PLACE SUITE 250 ATLANTA GA 30350
Business Address 8302 DUNWOODY PLACE SUITE 250 ATLANTA GA 30350 7705879898
PERMA FIX ENVIRONMENTAL SERVICES INC (Subject) CIK: 0000891532 (see all company filings)

IRS No.: 581954497 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-45449 | Film No.: 11603066
SIC: 4955 Hazardous Waste Management

Mailing Address 3333 WARRENVILLE ROAD SUITE 500 LISLE IL 60532
Business Address 3333 WARRENVILLE ROAD SUITE 500 LISLE IL 60532 6305772300
OBERWEIS ASSET MANAGEMENT INC/ (Filed by) CIK: 0000937886 (see all company filings)

IRS No.: 364106772 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G/A