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Inventory (Tables)
9 Months Ended
Sep. 30, 2020
Long-term Contracts Costs Incurred On Contracts Details  
Inventory (Tables)

Inventory consists of the following:

      September 30,     December 31,
(in thousands)     2020     2019
Raw materials   $ -    $ - 
Finished goods     -      192 
    $ -    $ 192