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INCOME TAXES
9 Months Ended
Sep. 30, 2020
Income Tax Disclosure [Abstract]  
INCOME TAXES INCOME TAXES
The expense for income taxes and the effective tax rate included in the consolidated statements of income are shown in the table below for the periods presented (dollars in thousands).
 Three months ended September 30,Nine months ended September 30,
 2020201920202019
Income tax expense$1,089 $1,107 $2,254 $3,275 
Effective tax rate19.6 %19.2 %19.4 %19.5 %
For both the three and nine month periods ended September 30, 2020 and 2019, the effective tax rate differs from the statutory tax rate of 21% primarily due to tax exempt interest income earned on certain investment securities and bank owned life insurance.