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INCOME TAXES
 3 Months Ended
Mar. 31, 2012
Income Tax Disclosure [Abstract]  
INCOME TAXES
9.
INCOME TAXES
 
The Company determines its periodic income tax provision (benefit) based upon the current period income and the annual estimated tax rate for the Company adjusted for any change to prior year estimates. The estimated tax rate is revised, if necessary, as of the end of each successive interim period during the fiscal year to the Company’s current annual estimated tax rate.
 
For the first quarter of 2012, the income tax provision reflects an effective tax rate of 28.8 percent, compared to an effective tax rate of 20.7 percent for the comparable period in the prior year.  The change in the effective rate was due primarily to the relationship of our annual estimated pretax income to permanent differences between book and taxable income including tax-exempt interest earned on municipal securities.