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Summary of Significant Accounting Policies and Activities (Details) - USD ($)
 1 Months Ended 12 Months Ended
Dec. 22, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Summary of Significant Accounting Policies and Activities (Textual)        
Real estate loan percentage of total loan   82.30% 82.10%  
Investment in trusts   $ 403,000    
Description of tax The Tax Act was signed into law and includes numerous provisions that impact the Company, most notably a reduction in the corporate tax rate from the maximum rate of 35% to a flat rate of 21%.      
Future minimum lease payments   15,700,000    
Incremental income tax expense   (248,000) $ (2,000) $ 160,000
Lease liabilities   18,500,000    
Right-of-use assets   18,500,000    
Cash and cash equivalents   $ 4,900,000 $ 7,300,000  
Fourth quarter of 2017 [Member]        
Summary of Significant Accounting Policies and Activities (Textual)        
Incremental income tax expense $ 2,400,000