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CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Interest income |  |  |
Loans | $ 91,599 | $ 93,133 | $ 88,929
Investment securities | 1,335 | 1,415 | 2,101
Federal funds sold and interest-bearing deposits with banks | 233 | 270 | 1,622
Total interest income | 93,167 | 94,818 | 92,652
Interest expense |  |  |
Deposits | 3,909 | 13,055 | 23,730
Borrowings | 1,526 | 1,953 | 1,653
Total interest expense | 5,435 | 15,008 | 25,383
Net interest income | 87,732 | 79,810 | 67,269
Provision for (reversal of) loan losses | (12,400) | 29,600 | 2,300
Net interest income after provision for loan losses | 100,132 | 50,210 | 64,969
Noninterest income |  |  |
Mortgage banking income | 11,376 | 19,785 | 9,923
Service fees on deposit accounts | 757 | 860 | 1,061
ATM and debit card income | 2,092 | 1,741 | 1,728
Income from bank owned life insurance | 1,231 | 1,091 | 1,001
Gain on sale of investment securities, net | (3) | 3 | 727
Loss on extinguishment of debt |  | (37) | (1,496)
Net lender fees on PPP loan sale |  | 2,247 |
Other income | 1,648 | 1,663 | 2,039
Total noninterest income | 17,101 | 27,353 | 14,983
Noninterest expenses |  |  |
Compensation and benefits | 28,854 | 26,287 | 23,826
Mortgage production costs | 8,753 | 9,898 | 6,436
Occupancy | 6,950 | 6,226 | 5,513
Other real estate owned (income) expenses, net | 385 | 1,223 | (26)
Outside service and data processing costs | 4,865 | 4,223 | 3,782
Insurance | 1,149 | 1,380 | 813
Professional fees | 2,057 | 1,771 | 1,327
Marketing | 873 | 628 | 791
Other | 2,544 | 2,108 | 2,011
Total noninterest expenses | 56,430 | 53,744 | 44,473
Income before income tax expense | 60,803 | 23,819 | 35,479
Income tax expense | 14,092 | 5,491 | 7,621
Net income available to common shareholders | $ 46,711 | $ 18,328 | $ 27,858
Earnings per common share |  |  |
Basic | $ 5.96 | $ 2.37 | $ 3.70
Diluted | $ 5.85 | $ 2.34 | $ 3.58
Weighted average common shares outstanding |  |  |
Basic | 7,843,692 | 7,718,615 | 7,528,283
Diluted | 7,988,980 | 7,824,214 | 7,772,544

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