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Accounts Receivables (Tables)
6 Months Ended
Jun. 30, 2015
Receivables [Abstract]  
Schedule of accounts receivables

Accounts receivables consist of the following at:

 

 

(Dollars in thousands)

  June 30, 2015     December 31, 2014  
                 
U.S. and State Government   $ 14     $ 3  
Commercial     1,165       1,193  
Allowance for doubtful accounts     (25 )      
  Total   $ 1,154     $ 1,196