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Note 1 - The Company and Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2017
Company And Summary Of Significant Accounting Policies Tables  
Company assets and liabilities by level measured at fair value on a recurring basis
Description  Level 1  Level 2  Level 3
          
Assets               
   $—     $—     $—   
Liabilities               
Warrant liability   —      964,000    —