v3.8.0.1
Note 4 - Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2017
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
As
of December 31,
 
   
201
7
   
201
6
 
Laboratory equipment
  $
3,920
    $
3,775
 
Leasehold improvements
   
4,469
     
4,469
 
Computer equipment and software
   
241
     
266
 
Construction in process
   
9,703
     
7,816
 
Tooling
   
1,109
     
1,074
 
Furniture and fixtures
   
47
     
48
 
     
19,489
     
17,448
 
Less accumulated depreciation and amortization
   
(8,438
)    
(6,736
)
Property and equipment, net
  $
11,051
    $
10,712