Investment securities available for sale (Tables)
6 Months Ended
Jun. 30, 2012
Investment securities [Abstract]  
Composition of investment portfolio
At June 30, 2012 and December 31, 2011, all of our securities were classified as available-for-sale.  The following table presents the composition of our investment portfolio at the dates indicated (dollars in thousands).

         
Gross
  
Gross
  
Estimated
    
   
Par
  
Amortized
  
Unrealized
  
Unrealized
  
Fair
  
Average
 
   
Value
  
Cost
  
Gains
  
Losses
  
Value
  
Yield
 
June 30, 2012
                  
                    
US Government Agencies
                  
More than ten years
 $15,300  $18,264  $472  $-  $18,736   3.27%
    15,300   18,264   472   -   18,736   3.27%
Mortgage-backed securities
                        
One to five years
  3   3   -   -   3   0.01%
More than ten years
  11,363   11,961   64   (10)  12,016   1.51%
Total
  11,366   11,964   64   (10)  12,019   1.51%
                          
Municipals
                        
Five to ten years
  3,500   4,137   5   -   4,142   2.56%
More than ten years
  1,550   1,784   15   -   1,799   3.52%
Total
  5,050   5,921   20   -   5,941   2.85%
                          
Total investment securities
 $31,716  $36,149  $557  $(10) $36,696   2.63%
                          
December 31, 2011
                        
                          
US Government Agencies
                        
More than ten years
 $2,000  $2,000  $1  $-  $2,001   3.81%
                          
Mortgage-backed securities
                        
One to five years
  11   11   -   -   11   0.01%
More than ten years
  19,870   20,621   220   (49)  20,792   1.83%
Total
  19,881   20,632   220   (49)  20,803   1.83%
                          
Other investments
                        
More than ten years
  7,356   7,386   -   (27)  7,359   0.55%
                          
Total investment securities
 $29,237  $30,018  $221  $(76) $30,163   1.65%
Investment securities available for sale that have unrealized loss position
Investment securities available for sale that have an unrealized loss position at June 30, 2012 and December 31, 2011 are detailed below (dollars in thousands).

   
Securities in a loss
  
Securities in a loss
       
   
Position for less than
  
Position for more than
       
   
12 Months
  
12 Months
  
Total
 
   
Fair
  
Unrealized
  
Fair
  
Unrealized
  
Fair
  
Unrealized
 
   
Value
  
Losses
  
Value
  
Losses
  
Value
  
Losses
 
June 30, 2012
 
(in Thousands)
 
Mortgage-backed securities
 $2,331  $(10) $3  $-  $2,334  $(10)
                          
Total
 $2,331  $(10) $3  $-  $2,334  $(10)
                          
December 31, 2011
   
US Treasuries
 $7,358  $(27) $-  $-  $7,358  $(27)
Mortgage-backed securities
  10,221   (47)  205   (2)  10,426   (49)
                          
Total
 $17,579  $(74) $205  $(2) $17,784  $(76)