XML 32 R21.htm IDEA: XBRL DOCUMENT v3.19.2
Inventory (Tables)
6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory
  June 30,   December 31, 
   2019   2018 
   ($ in thousands) 
Finished goods  $148   $284 
Work in process   104    111 
Raw materials and supplies   966    739 
   $1,218   $1,134