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Consolidated Statements of Income (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Interest income on: |  |  |
Loans, including fees | $ 13,898,411 | $ 14,646,011 | $ 15,248,717
U.S. Government agency securities | 1,488,467 | 1,915,845 | 1,854,201
State and municipal securities | 1,605,648 | 1,400,651 | 1,308,116
Corporate trust preferred securities | 114,312 | 166,085 | 189,012
Federal funds sold | 5,705 | 9,632 | 12,428
Other | 19,422 | 40,743 | 31,823
Total interest income | 17,131,965 | 18,178,967 | 18,644,297
Interest expense on: |  |  |
Deposits | 3,038,340 | 3,696,631 | 4,937,282
Short-term borrowings | 3,764 | 1,492 | 49
Long-term borrowings | 640,476 | 952,705 | 1,058,749
Junior subordinated debentures |  | 648,127 | 546,430
Total interest expense | 3,682,580 | 5,298,955 | 6,542,510
Net interest income | 13,449,385 | 12,880,012 | 12,101,787
Provision for credit losses | 663,000 | 1,050,000 | 2,442,976
Net interest income after provision for credit losses | 12,786,385 | 11,830,012 | 9,658,811
Other income: |  |  |
Service charges on deposit accounts | 626,935 | 648,183 | 693,725
Other fees and commissions | 814,425 | 823,854 | 817,559
Gains on investment securities, net | 408,646 | 175,164 | 585,882
Income on life insurance | 239,524 | 251,406 | 268,083
Total other income | 2,089,530 | 1,898,607 | 2,365,249
Other expenses: |  |  |
Salaries and wages | 4,931,266 | 4,856,835 | 4,792,480
Employee benefits | 1,643,581 | 1,823,669 | 1,503,848
Occupancy | 846,591 | 830,105 | 871,081
Furniture and equipment | 814,006 | 761,997 | 761,462
Other expenses | 2,788,040 | 2,643,509 | 2,989,201
Total impairment losses on investment securities | 291,943 | 979,322 | 1,179,652
Portion of impairment losses recognized in other comprehensive income (before taxes) | (200,015) | (717,114) | (1,102,873)
Net impairment loss on investment securities | 91,928 | 262,208 | 76,779
Total other expenses | 11,115,412 | 11,178,323 | 10,994,851
Income before income taxes | 3,760,503 | 2,550,296 | 1,029,209
Federal and state income taxes (benefits) | 767,410 | 485,511 | (233,253)
Net income | $ 2,993,093 | $ 2,064,785 | $ 1,262,462
Basic and diluted earnings per share of common stock | $ 1.10 | $ 0.76 | $ 0.46

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