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Other Assets Other Investments Narrative (Details) - USD ($)
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Sep. 26, 2008
Schedule of Equity Method Investments [Line Items]        
Investment in limited partnerships $ 4,607,000   $ 3,963,000  
Income (Loss) from Equity Method Investments 236,000 $ 708,000    
Investment in Trust II 315,000   315,000  
Aldine Capital Fund, LP        
Schedule of Equity Method Investments [Line Items]        
Investment in limited partnerships 948,000   883,000  
Aldine Capital Fund II, LP        
Schedule of Equity Method Investments [Line Items]        
Investment in limited partnerships $ 3,700,000   $ 3,100,000  
Trust II [Member]        
Schedule of Equity Method Investments [Line Items]        
Sole ownership of common securities issued by Trust II       $ 315,000
Trust preferred securities       $ 10,000,000
Debt Instrument, Interest Rate, Stated Percentage       10.50%