Company:  AMERICAN SCIENCE & ENGINE ... (ASEI)
Form Type:  10-K
Filing Date:  6/8/2012 
CIK:  0000005768 
Address:  C/O AS&E
829 MIDDLESEX TURNPIKE
 
City, State, Zip:  BILLERICA, Massachusetts 01821 
Telephone:  (978) 262-8700 
Fiscal Year:  03/31 
Last Trade
Last Trade: 
$67.33  
Change: 
-0.81 (-1.19%)  
Trade Time: 
02:17 PM EST  
Market Cap: 
$529.42M
Description of Business
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  FORM 10-K
    PART I
      ITEM 1. BUSINESS
    ISO 9001 Certification
    ITEM 1A. RISK FACTORS
    ITEM 1B. UNRESOLVED STAFF COMMENTS
    PART I
      ITEM 2. PROPERTIES
      ITEM 3. LEGAL PROCEEDINGS
      ITEM 4. MINE SAFETY DISCLOSURE
    PART II
      ITEM 5. MARKET FOR THE COMPANY'S COMMON EQUITY, RELATED ...
      ITEM 6. SELECTED FINANCIAL DATA
      ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL ...
        Liquidity and Capital Resources
      ITEM 7A. QUANTITIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET ...
      ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
      ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ...
      ITEM 9A. CONTROLS AND PROCEDURES
      ITEM 9B. OTHER INFORMATION
    PART III
      ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
      ITEM 11. EXECUTIVE COMPENSATION
      ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND ...
      ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND ...
      ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES
    PART IV
      ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES
    REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
    REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
    BALANCE SHEET
    INCOME STATEMENT
    STOCKHOLDERS EQUITY
    CASH FLOW
    NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
    SIGNATURES
    EXHIBIT INDEX
  EXHIBIT 21.1
    SUBSIDIARIES
  EXHIBIT 23.1
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
  EXHIBIT 23.2
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
  EXHIBIT 31.1
    CERTIFICATION OF CHIEF EXECUTIVE OFFICER
  EXHIBIT 31.2
    CERTIFICATION OF CHIEF FINANCIAL OFFICER
  EXHIBIT 32.1
    CERTIFICATION PURSUANT TO
  EXHIBIT 32.2
    CERTIFICATION PURSUANT TO
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