XML 43 R30.htm IDEA: XBRL DOCUMENT v3.19.1
Note 4 - Inventories (Tables)
 3 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
March 31,
    
December 31,
  
(in thousands)
  
2019
    
2018
  
Finished goods
   $
9,367
     $
10,143
  
Raw materials
    
3,309
      
4,200
  
Work-in-process
    
1,318
      
1,194
  
Inventory reserves
    
(2,652
)
    
(2,495
)
Total inventories
   $
11,342
     $
13,042