Securities Sold under Agreements to Repurchase (Tables)
 12 Months Ended
Dec. 31, 2016
Securities Sold under Agreements to Repurchase [Abstract]  
Schedule of information concerning repurchase agreements [Table Text Block]

Repurchase agreements are secured borrowings. The Company pledges investment securities to secure those borrowings. Information concerning repurchase agreements is summarized as follows:

    2016     2015     2014  
Average daily balance during the year   $ 15,000     $ 22,890     $ 31,000  
Average interest rate during the year     5.95 %     5.92 %     5.90 %
Maximum month-end balance during the year   $ 15,000     $ 31,000     $ 31,000  
Weighted average interest rate during the year     5.95 %     5.92 %     5.90 %
Schedule of remaining contractual maturity [Table Text Block]

The table below shows the remaining contractual maturity of agreement by fair value of collateral pledged:

   2016 
   Remaining Contractual Maturity of the Agreements 
   Overnight and
Continuous		   Up to 30
Days		   30-90 Days   Greater Than
90 Days		   Total 
Repurchase agreements and repurchase-to-maturity transactions:                         
U.S. Treasury and agency securities  $     -   $    -   $    -   $  -   $- 
Residential mortgage pass-through securities   -    -    -    16,826    16,826 
Total Borrowings  $-   $-   $-   $16,826   $16,826 
                          
Amounts related to agreements not included in offsetting disclosure in Note 13.   $1,826 

 

   2015 
   Remaining Contractual Maturity of the Agreements 
   Overnight and
Continuous		   Up to 30
Days		   30-90 Days   Greater Than
90 Days		   Total 
Repurchase agreements and repurchase-to-maturity transactions:                         
U.S. Treasury and agency securities  $    -   $   -   $  -   $6,313   $6,313 
Residential mortgage pass-through securities   -    -    -    12,589    12,589 
Total Borrowings  $-   $-   $-   $18,902   $18,902 
                          
Amounts related to agreements not included in offsetting disclosure in Note 13.   $3,902