XML 56 R29.htm IDEA: XBRL DOCUMENT v3.20.1
Inventory (Tables)
12 Months Ended
Dec. 31, 2019
Inventory Tables Abstract  
Inventory (Tables)

Inventory consists of the following (in thousands):

      December 31,
      2019     2018
Raw materials   $   $ 32 
Finished goods     192      1,077 
    $ 192    $ 1,109