| 
           Note 4 - Contingencies (Details) 
         | 
        
           Sep. 30, 2013
 
          USD ($) 
         | 
        
           Dec. 31, 2012
 
          USD ($) 
         | 
        
           Nov. 18, 2007
 
          Not Deemed Registrable Securities [Member]
 
          Seven Year Warrants [Member] 
         | 
        
           Sep. 30, 2013
 
          Korean Business Segment [Member]
 
          USD ($) 
         | 
        
           Sep. 30, 2013
 
          Korean Business Segment [Member]
 
          KRW 
         | 
        
           Oct. 31, 2010
 
          Seven Year Warrants [Member] 
         | 
        
           Oct. 31, 2007
 
          Seven Year Warrants [Member]
 
          USD ($) 
         | 
        
           Oct. 31, 2010
 
          One Year Warrants [Member] 
         | 
      
|---|---|---|---|---|---|---|---|---|
| Note 4 - Contingencies (Details) [Line Items] | ||||||||
| Other Assets, Noncurrent (in Won) | $ 296,000 | $ 258,000 | $ 132,000 | 140,000,000 | ||||
| Other Assets, Noncurrent (in Dollars) | 296,000 | 258,000 | 132,000 | 140,000,000 | ||||
| Convertible Debt (in Dollars) | $ 4,250,000 | |||||||
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 1,495,952 | 1,495,952 | 1,495,952 | 1,495,952 |