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Preferred And Common Stock (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Oct. 31, 2019
$ / shares
shares
Aug. 20, 2018
Oct. 06, 2017
shares
Apr. 30, 2014
$ / shares
shares
Dec. 31, 2017
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2019
USD ($)
$ / shares
shares
Oct. 25, 2019
USD ($)
Dec. 31, 2018
USD ($)
$ / shares
shares
Schedule of Capitalization, Equity [Line Items]                  
Reverse stock split ratio   5.5              
Common stock, par value | $ / shares             $ 0.01   $ 0.01
Series B Preferred Stock [Member]                  
Schedule of Capitalization, Equity [Line Items]                  
Issuance of preferred stock | shares             0   0
Aggregate value | $              
Share conversion, original shares converted | shares     480,000            
Stock conversion, estimated preferred stock dividends eliminated quarterly | $         $ 188        
Stock conversion, estimated preferred stock dividends eliminated annually | $         $ 750        
Preferred stock, par value | $ / shares             $ 0.01   $ 0.01
Series B Preferred Stock [Member] | Private Placement [Member]                  
Schedule of Capitalization, Equity [Line Items]                  
Issuance of preferred stock | shares       480,000          
Preferred stock rate       6.25%          
Share Price | $ / shares       $ 25.00          
Aggregate value | $           $ 12,000      
Placement fees | $           482      
Other offering expenses | $           149      
Net proceeds from issuance of Series B preferred stock | $           $ 11,369      
Series C Preferred Stock [Member]                  
Schedule of Capitalization, Equity [Line Items]                  
Issuance of preferred stock | shares             12,337   0
Aggregate value | $              
Preferred stock, par value | $ / shares             $ 0.01   $ 0.01
Series C Preferred Stock [Member] | Private Placement [Member]                  
Schedule of Capitalization, Equity [Line Items]                  
Issuance of preferred stock | shares 12,337                
Aggregate value | $               $ 25,000  
Purchase price per share | $ / shares $ 1,200.00                
Preferred stock, par value | $ / shares 0.01                
Common Stock [Member]                  
Schedule of Capitalization, Equity [Line Items]                  
Shares issued upon conversion | shares     6,857,143            
Shares post-reverse-split | shares     1,246,753            
Common Stock [Member] | Private Placement [Member]                  
Schedule of Capitalization, Equity [Line Items]                  
Share Price | $ / shares $ 12.00                
Shares sold | shares 849,615                
Nonvoting Common Stock [Member] | Private Placement [Member]                  
Schedule of Capitalization, Equity [Line Items]                  
Shares upon conversion | shares 100                
Common stock, par value | $ / shares $ 0.01