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Note 5. Held to Maturity Securities
3 Months Ended
Jun. 30, 2011
Held-to-maturity Securities [Table Text Block]
5.    Held to Maturity Securities

Amortized costs and fair values of held to maturity securities as of June 30, 2011 and December 31, 2010 are summarized as follows:

   
June 30, 2011
 
   
Amortized
Cost
   
Unrealized
Gains
   
Unrealized
Losses
   
Fair Value
 
Obligations of:
                       
States and political subdivisions
 
$
59,899,145
   
$
1,242,563
   
$
(33,759
)
 
$
61,107,949
 
U.S. government-sponsored entities
   
254,947,567
     
976,314
     
(69,000
)
   
255,854,881
 
Other
   
100,000
     
-
     
-
     
100,000
 
Totals
 
$
314,946,712
   
$
2,218,877
   
$
(102,759
)
 
$
317,062,830
 

   
December 31, 2010
 
   
Amortized
Cost
   
Unrealized
Gains
   
Unrealized
Losses
   
Fair Value
 
Obligations of:
                       
States and political subdivisions
 
$
51,315,102
   
$
843,803
   
$
(119,745
)
 
$
52,039,160
 
U.S. government-sponsored entities
   
176,388,730
     
704,904
     
(1,956,222
)
   
175,137,412
 
Other
   
100,000
     
-
     
-
     
100,000
 
Totals
 
$
227,803,832
   
$
1,548,707
   
$
(2,075,967
)
 
$
227,276,572
 

Obligations of U.S. government-sponsored entities consist of securities issued by the Federal Home Loan Mortgage Corporation and Federal National Mortgage Association.

The amortized cost and fair value of held-to-maturity securities at June 30, 2011 by contractual maturity are shown below.  Expected maturities differ from contractual maturities because borrowers or issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

   
Amortized
Cost
   
Fair Value
 
Due in one year or less
 
$
32,914,871
   
$
33,035,827
 
Due after one year less than 5 years
   
120,752,229
     
122,193,158
 
Due after 5 years less than 10 years
   
147,384,455
     
147,849,220
 
Due in more than 10 years
   
13,895,157
     
13,984,625
 
Totals
 
$
314,946,712
   
$
317,062,830
 

The following table summarizes the portion of the Bank’s held to maturity securities portfolio which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position at June 30, 2011 and December 31, 2010.

   
June 30, 2011
 
   
Continuous unrealized
losses existing for less
than 12 months
   
Continuous unrealized
losses existing for more
than 12 months
   
Total
 
   
Fair
Value
   
Unrealized
Losses
   
Fair
Value
   
Unrealized
Losses
   
Fair
Value
   
Unrealized
Losses
 
Obligations of:
                                   
States and political subdivisions
 
$
8,896,418
   
$
(33,759
)
 
$
-
   
$
-
   
$
8,896,418
   
$
(33,759
)
U.S. government-sponsored entities and corporations
   
20,181,000
     
(69,000
)
   
-
     
-
     
20,181,000
     
(69,000
)
Totals
 
$
29,077,418
   
$
(102,759
)
 
$
-
   
$
-
   
$
29,077,418
   
$
(102,759
)

   
December 31, 2010
 
   
Continuous unrealized
losses existing for less
than 12 months
   
Continuous unrealized
losses existing for more
than 12 months
   
Total
 
   
Fair
Value
   
Unrealized
Losses
   
Fair
Value
   
Unrealized
Losses
   
Fair
Value
   
Unrealized
Losses
 
Obligations of:
                                   
States and political subdivisions
 
$
13,884,930
   
$
115,639
   
$
508,550
   
$
4,106
   
$
14,393,480
   
$
119,745
 
U.S. government-sponsored entities and corporations
   
119,139,262
     
1,956,222
     
-
     
-
     
119,139,262
     
1,956,222
 
Totals
 
$
133,024,192
   
$
2,071,861
   
$
508,550
   
$
4,106
   
$
133,532,742
   
$
2,075,967
 

Management does not believe any individual unrealized loss as of June 30, 2011 or December 31, 2010 represents other than temporary impairment.  At June 30, 2011, the Bank held no investment securities that had unrealized losses existing for greater than 12 months and at December 31, 2010 the Bank held one investment security that had unrealized losses existing for greater than 12 months.   Management believes the temporary impairment in fair value was caused by market fluctuations in interest rates and not by a deterioration in credit quality of the underlying portfolio of securities.  Since securities are held to maturity, management does not believe that the Bank will experience any losses on these investments.