| Note 4 - Contingencies | 3 Months Ended | 
|---|---|
| Mar. 31, 2012 | |
| Commitments and Contingencies Disclosure [Text Block] | 
      4.      CONTINGENCIES
     
      Consumer
      Indemnity
     
      As
      required by the Door-to-Door Sales Act in South Korea, the
      Company maintains insurance for consumer indemnity claims
      with a mutual aid cooperative by possessing a mutual aid
      contract with Mutual Aid Cooperative & Consumer (the
      “Cooperative”).  The contract secures
      payment to distributors in the event that the Company is
      unable to provide refunds to
      distributors.  Typically, requests for refunds are
      paid directly by the Company according to the Company’s
      normal Korean refund policy, which requires that refund
      requests be submitted within three
      months.  Accordingly, the Company estimates and
      accrues a reserve for product returns based on this policy
      and its historical experience.  Depending on the
      sales volume, the Company may be required to increase or
      decrease the amount of the contract.  The maximum
      potential amount of future payments the Company could be
      required to make to address actual distributor claims under
      the contract is equivalent to three months of rolling
      sales.  At March 31, 2012, non-current other assets
      include KRW 100 million (USD $88,000) underlying the
      contract, which can be utilized by the Cooperative to fund
      any outstanding distributor claims.  The Company
      believes that the likelihood of utilizing these funds to
      provide for distributors claims is remote.
     
      Registration
      Payment Arrangements
     
      Pursuant
      to the agreement with the original investors and the
      placement agent in the May 2007 financing for the sale
      of 1,759,307 shares of Series A preferred stock and
      warrants representing the right to purchase 1,759,307 shares
      of common stock, the Company is obligated for a specified
      period of time to maintain the effectiveness of the
      registration statement that was filed with the SEC covering
      the resale of the shares of common stock issuable upon the
      exercise of warrants issued in the financing.  On March
      18, 2010, the Company filed a post-effective amendment
      withdrawing unsold shares from registration.  If
      the Company fails to file a new registration statement, and
      maintain its effectiveness, then it may be liable for payment
      in cash of an amount equal to 2% of the product of $1.70
      times the number of shares of Series A preferred stock
      sold in the financing to the relevant purchasers, or up to
      approximately $60,000, but only if the quoted closing price
      of the Company’s common stock exceeds the warrant
      exercise price of the warrants.  The exercise price
      of the warrants was $3.80 per share until May 3, 2010, $4.35
      per share until November 3, 2011, and is currently $5.00 per
      share until May 4, 2013, when the warrants expire.
     
      Pursuant
      to the agreement with the investors in the Company’s
      October 2007 financing of variable rate convertible
      debentures having an aggregate face amount of $4,250,000,
      seven-year warrants to purchase 1,495,952 shares of the
      Company’s common stock, and one-year warrants to
      purchase 1,495,952 shares of the Company’s common
      stock, the Company was obligated to (i) file a
      registration statement covering the resale of the maximum
      number of Registrable Securities (as defined) that is
      permitted by SEC Guidance (as defined) prior to
      November 18, 2007, (ii) cause the registration
      statement to be declared effective within certain specified
      periods of time and (iii) maintain the effectiveness of the
      registration statement until all Registrable Securities have
      been sold, or may be sold without volume restrictions
      pursuant to Rule 144(k) under the Securities Act.  The
      Company timely filed that registration statement covering the
      shares of common stock underlying the debentures, which have
      been redeemed, and the one-year warrants, which have
      expired.  At the time, the 1,495,952 shares of
      common stock underlying the seven-year warrants, and 149,595
      shares of common stock underlying certain five-year warrants
      issued to the placement agent in the transaction, were not
      deemed Registrable Securities and were not included in the
      registration statement.  If they are subsequently
      deemed Registrable Securities and we fail to file a new
      registration statement covering them, then the warrants may
      be exercised by means of a cashless exercise. The maximum
      number of shares that could be required to be issued upon
      exercise of the warrants (whether on a cashless basis or
      otherwise) is limited to the number of shares indicated on
      the face of the warrants.
     
      As
      of March 31, 2012, no contingent obligations have been
      recognized under registration payment arrangements.
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