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Fair Value of Financial Instruments
6 Months Ended
Jun. 30, 2011
Fair Value of Financial Instruments [Abstract]  
Fair Value of Financial Instruments
(13) Fair Value of Financial Instruments
The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate such value:
Loans
The fair value of loans is estimated based on the discounted value of contractual cash flows. The discount rate is estimated using current offering rates applicable to each category of such financial instruments. The net carrying amount of impaired loans is generally based on the fair values of collateral obtained through independent appraisals or internal evaluations, or by discounting the total expected future cash flows. This method of estimating fair value does not incorporate the exit-price concept of fair value prescribed by ASC Topic 820.
Investment Securities
A detailed description of the fair value measurement of the debt instruments in the available for sale sections of the investment security portfolio is provided in the Fair Value Measurement section above. A schedule of investment securities by category and maturity is provided in the notes on Investment Securities.
Federal Funds Sold, Cash, and Due from Banks
For federal funds sold, cash, and due from banks, the carrying amount is a reasonable estimate of fair value, as such instruments reprice in a short time period.
Mortgage Servicing Rights
The fair value of mortgage servicing rights is based on the discounted value of contractual cash flows utilizing servicing rate, constant prepayment rate, servicing cost, and discount rate factors.
Accrued Interest Receivable and Payable
For accrued interest receivable and payable, the carrying amount is a reasonable estimate of fair value because of the short maturity for these financial instruments.
Deposits
The fair value of deposits with no stated maturity, such as noninterest-bearing demand, NOW accounts, savings, and money market, is equal to the amount payable on demand. The fair value of time deposits is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities.
Securities Sold under Agreements to Repurchase and Interest-bearing Demand Notes to U.S. Treasury
For securities sold under agreements to repurchase and interest-bearing demand notes to U.S. Treasury, the carrying amount is a reasonable estimate of fair value, as such instruments reprice in a short time period.
Other Borrowings
The fair value of subordinated notes and other borrowings, Federal Home Loan borrowings, is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for other borrowed money of similar remaining maturities.
A summary of the carrying amounts and fair values of our Company’s financial instruments for the periods stated is as follows:
                                 
    June 30, 2011   December 31, 2010
    Carrying   Fair   Carrying   Fair
    amount   value   amount   value
 
Assets:
                               
Loans
  $ 854,935,767     $ 858,243,000     $ 883,907,596     $ 889,291,000  
Investment in debt securities
    219,697,283       219,697,283       178,977,550       178,977,550  
Federal fund sold and securities purchased under agreements to resell
    171,338       171,338       125,815       125,815  
Cash and due from banks
    35,068,582       35,068,582       50,853,985       50,853,985  
Mortgage servicing rights
    2,271,915       2,942,000       2,355,990       3,027,000  
Accrued interest receivable
    5,672,339       5,672,339       5,733,684       5,733,684  
 
 
  $ 1,117,817,224     $ 1,121,794,542     $ 1,121,954,620     $ 1,128,009,034  
 
Liabilities:
                               
Deposits:
                               
Demand
  $ 148,139,814     $ 148,139,814     $ 137,749,571     $ 137,749,571  
NOW
    176,363,696       176,363,696       160,225,356       160,225,356  
Savings
    61,188,402       61,188,402       54,722,129       54,722,129  
Money market
    148,321,087       148,321,087       164,190,054       164,190,054  
Time
    428,059,598       435,753,000       429,775,546       437,996,000  
Federal funds purchased and securities sold under agreements to repurchase
    28,689,667       28,689,667       30,068,453       30,068,453  
Subordinated notes
    49,486,000       21,366,000       49,486,000       21,105,000  
Other borrowings
    43,656,668       45,224,000       66,985,978       69,329,000  
Accrued interest payable
    1,690,994       1,690,994       1,491,503       1,491,503  
 
 
  $ 1,085,595,926     $ 1,066,736,660     $ 1,094,694,590     $ 1,076,877,066  
 
Off-Balance Sheet Financial Instruments
The fair value of commitments to extend credit and standby letters of credit are estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements, the likelihood of the counterparties drawing on such financial instruments, and the present creditworthiness of such counterparties. Our Company believes such commitments have been made on terms which are competitive in the markets in which it operates.
Limitations
The fair value estimates provided are made at a point in time based on market information and information about the financial instruments. Because no market exists for a portion of our Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the fair value estimates.