XML 48 R36.htm IDEA: XBRL DOCUMENT v3.19.1
Note 8 - Inventory (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
December 31,
 
   
2018
   
2017
 
Raw materials
  $
12,354
    $
10,011
 
Work in process
   
6,331
     
7,150
 
Finished goods
   
1,313
     
1,645
 
Reserve for excess and obsolete inventory
   
(1,414
)    
(1,165
)
Total
  $
18,584
    $
17,641