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ACNB CORPORATION (PARENT COMPANY ONLY) FINANCIAL INFORMATION (Statements of Income) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items] |  |
Other income | $ 19,934 | $ 18,169
Income tax benefit | (4,308) | (5,645)
Net Income | 18,394 | 23,721
Comprehensive Income | 18,609 | 27,085
Corporation |  |
Condensed Financial Statements, Captions [Line Items] |  |
Dividends from banking subsidiary | 8,685 | 6,920
Other income | 83 | 282
Total Revenues | 8,768 | 7,202
Expenses | 1,845 | 1,739
Net income before taxes and equity in undistributed earnings of subsidiaries | 6,923 | 5,463
Income tax benefit | 587 | 501
Net income before equity in undistributed earnings of subsidiaries | 7,510 | 5,964
Equity in undistributed earnings of subsidiaries | 10,884 | 17,757
Net Income | 18,394 | 23,721
Comprehensive Income | $ 18,609 | $ 27,085

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