The principal categories of inventories, net reserves of $3,223 and $806 in 2016 and 2015, respectively, are comprised of the following as of December 31:
Inventory:
 
2016
 
2015
 
 
 
 
 
Finished goods
 
$
2,429

 
$
2,545

Raw materials
 
829

 
1,121

Total
 
$
3,258

 
$
3,666