Note C - Prepaid Expenses and Other Current Assets (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
   
December 31,
 
   
2016
   
2015
 
Prepaid insurance
  $
333
    $
290
 
Other receivables
   
58
     
2,375
 
Other prepaid expenses and current assets
   
98
     
93
 
Total
  $
489
    $
2,758