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Inventory (Tables)
9 Months Ended
Sep. 30, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventory

    September 30,     December 31,  
    2016     2015  
    ($ in thousands)  
Finished goods   $ 108     $ 301  
Work in process     147       307  
Raw materials and supplies     110       145  
    $ 365     $ 753