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Series C Preferred Stock (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Dec. 21, 2012
Dec. 22, 2016
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Preferred stock dividends     $ 58 $ 175
Series C Preferred Stock [Member]            
Stock issued, shares 728,706          
Stock sold price per share $ 10.00          
Preferred stock dividends       $ 58   $ 175
Number of shares exchanged   728,706        
Common Stock [Member]            
Stock issued, shares 2,656,294          
Common Stock [Member] | Series C Preferred Stock [Member]            
Net proceeds from the sale of preferred and common stock $ 33,800