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Note 3 - Balance Sheet Detail (in Thousands) (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
 
 
December 31,
 
 
 
201
6
 
 
201
5
 
                 
Accrued payroll
  $
134
    $
132
 
Accrued vacation
   
279
     
281
 
Rent payable
   
13
     
51
 
Accrued interest, related party
   
184
     
76
 
Other
   
81
     
80
 
    $
691
    $
620