XML 23 R11.htm IDEA: XBRL DOCUMENT v3.8.0.1
4. Inventories
12 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Inventories

A summary of inventories follows:

 

(In thousands)  December 31, 
   2017   2016 
Raw materials  $3,205   $5,235 
Work in progress   1,446    1,636 
Finished goods   4,087    4,587 
Supplies   844    717 
Total Inventories   9,582    12,175 
Inventory reserve   (446)   (399)
Net Inventories  $9,136   $11,776