Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.8.0.1
Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Significant Accounting Policies [Line Items]    
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax $ 0  
Federal Reserve Bank [Member]    
Significant Accounting Policies [Line Items]    
Cash, FDIC Insured Amount $ 878 $ 765
Premises And Equipment [Member] | Minimum [Member]    
Significant Accounting Policies [Line Items]    
Property, Plant and Equipment, Useful Life 26 years  
Premises And Equipment [Member] | Maximum [Member]    
Significant Accounting Policies [Line Items]    
Property, Plant and Equipment, Useful Life 39 years  
Furniture and Equipment [Member] | Minimum [Member]    
Significant Accounting Policies [Line Items]    
Property, Plant and Equipment, Useful Life 2 years  
Furniture and Equipment [Member] | Maximum [Member]    
Significant Accounting Policies [Line Items]    
Property, Plant and Equipment, Useful Life 10 years  
Certificates of Deposit [Member]    
Significant Accounting Policies [Line Items]    
Maturities of Time Deposits, Description Certificates of deposits in other financial institutions generally mature within 5 years and are carried at cost