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Auburn National Bancorporation - Parent Only, Statement of Earnings (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Income: |  |
Other noninterest income | $ 1,428 | $ 1,502
Other Expenses [Abstract] |  |
Total interest expense | 4,084 | 4,435
(Gain) loss on early extinguishment of debt | (790) | 362
Total noninterest expense | 15,348 | 16,372
Income Tax Expense (Benefit) | 3,102 | 2,820
Net earnings | 8,150 | 7,858
Parent Company [Member] |  |
Income: |  |
Dividends from bank subsidiary | 6,709 | 3,450
Other noninterest income | 129 | 135
Total income | 6,838 | 3,585
Other Expenses [Abstract] |  |
Total interest expense | 228 | 236
(Gain) loss on early extinguishment of debt | 790 |
Total noninterest expense | 193 | 195
Operating Expenses | (369) | 431
Earnings Before Income Tax Expense (Benefit) And Equity In Undistributed Earnings Of Bank Subsidary | 7,207 | 3,154
Income Tax Expense (Benefit) | 157 | (80)
Earnings Before Equity In Undistributed Earnings Of Bank Subsidary | 7,050 | 3,234
Equity In Undistributed Earnings Of Bank Subsidary | 1,100 | 4,624
Net earnings | $ 8,150 | $ 7,858

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