XML 42 R27.htm IDEA: XBRL DOCUMENT v3.8.0.1
Inventories (Tables)
 12 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Components of inventories
 
(Dollars in thousands)
 
December 31,
 
2017
 
2016
Inventories, gross
$
56,492

 
$
48,038

Reserve for obsolete and excess inventory
(5,564
)
 
(5,477
)
Inventories, net
$
50,928

 
$
42,561