| NOTE M - FAIR VALUE MEASUREMENTS | 6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Jun. 30, 2011 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Disclosures [Text Block] | 
      NOTE M
      - FAIR VALUE MEASUREMENTS
     
      The
      financial assets of the Company measured at fair value on a
      recurring basis are cash equivalents and long-term marketable
      securities. The Company’s long term marketable
      securities are generally classified within Level 1 of
      the fair value hierarchy because they are valued using quoted
      market prices, broker or dealer quotations, or alternative
      pricing sources with reasonable levels of price transparency.
      The Company’s long-term investments are classified
      within Level 3 of the fair value hierarchy because they are
      valued using unobservable inputs, due to the fact that
      observable inputs are not available, or situations in which
      there is little, if any, market activity for the asset or
      liability at the measurement date.  The
      Company’s derivative liabilities and convertible
      debentures are classified within Level 3 of the fair value
      hierarchy because they are valued using inputs which are not
      actively observable, either directly or indirectly.
     
 
      The
      following table sets forth the Company’s short and
      long-term investments as of December 31, 2010 which
      are measured at fair value on a recurring basis by level
      within the fair value hierarchy. These are classified based
      on the lowest level of input that is significant to the fair
      value measurement:
     
 
      The
      table below sets forth a summary of changes in the fair value
      of the Company’s Level 3 financial liabilities
      (derivative liability) for the six months ended June 30,
      2011.
     
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