XML 48 R34.htm IDEA: XBRL DOCUMENT v3.7.0.1
Note 7 - Accounts Receivable (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
 
 
December 31,
 
 
 
2016
 
 
2015
 
Commercial
   $
9,228
     $
11,882
  
U.S. Government
    
10
      
1,454
  
     
9,238
      
13,336
  
Allowance for doubtful accounts
    
(1,228
 )    
(942
 )
Net
   $
8,010
     $
12,394