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Investments in Marketable Securities (Tables)
12 Months Ended
Dec. 31, 2018
Investments In Marketable Securities Tables Abstract  
Schedule of marketable securities

The realized gain or loss, unrealized gain or loss, and dividend income related to marketable securities for the year ended December 31, 2018 and 2017 are as follows ($ in thousands):

 

    For the Years Ended December 31,  
    2018     2017  
Realized gain (loss)   $ (400 )   $ (328 )
Unrealized gain (loss)     (117 )     240  
Dividend income     158       111  
    $ (359 )   $ 23