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Acquisition of UpState New York Bancorp, Inc. and USNY Bank (Schedule of Business Acquisitions, by Acquisition) (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jul. 07, 2020 | Dec. 31, 2020 | Jun. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Business Acquisition [Line Items] |  |  |  |  |
Acquiree shares settled for stock | 1,987,206 |  |  |  |
Exchange Ratio | 0.939% |  |  |  |
Norwood Financial Corp shares issued | 1,865,738 |  |  |  |
Value assigned to acquirer common share, per share | $ 24.30 |  |  |  |
Purchase price assigned to UpState New York Bancorp, Inc. common shares exchanged for Norwood Financial Corp shares | $ 45,337 | $ 45,337 |  |  |
UpState New York Bancorp, Inc. shares exchanged for cash, excluding fractional shares | 220,794 |  |  |  |
Purchase price paid to each UpState New York Bancorp, Inc. common share exchanged for cash | $ 33.33 |  |  |  |
Purchase price assigned to UpState New York Bancorp, Inc. common shares exchanged for cash | $ 7,359 |  |  |  |
Purchase price consideration - Cash-in-lieu of Fractional Shares | 1,479 |  |  |  |
Cash in lieu of fractional shares | 6 |  |  |  |
Total purchase price | 54,181 |  |  |  |
UpState New York Bancorp, Inc. shareholders' equity | 44,803 | 194,785 |  | $ 137,428 | $ 122,285
Tangible equity | 44,803 |  |  |  |
Adjustments to investments acquired to fair value | (112) |  |  |  |
Adjustments to interest rates on loans acquired to fair value | 3,982 |  |  |  |
Adjustments to general credit on loans acquired to fair value | (10,529) |  |  |  |
Adjustments to specific credit - non-amortizing on loans acquired to fair value | (5,213) |  |  |  |
Adjustments to specific credit - amortizing on loans acquired to fair value | (1,724) |  |  |  |
Adjustments to core deposit intangibles acquired to fair value | 409 |  |  |  |
Adjustments to deferred loan fees acquired to fair value | (812) |  |  |  |
Adjustments to premises and equipment acquired to fair value | (1,211) |  |  |  |
Adjustments to allowance for loan and lease losses acquired to fair value | 5,982 |  |  |  |
Adjustments to deferred tax assets acquired to fair value | 3,449 |  |  |  |
Adjustments to other assets acquired to fair value | (48) |  |  |  |
Adjustments to time deposits acquired to fair value | (2,754) |  |  |  |
Net Assets Acquired: Cash | 24,037 |  |  |  |
Net Assets Acquired: Securities available for sale | 13,836 |  |  |  |
Net Assets Acquired: Loans | 405,221 |  |  |  |
Net Assets Acquired: Premises & equipment, net | 4,318 |  |  |  |
Net assets acquired: Regulatory stock | 2,487 |  |  |  |
Net Assets Acquired: Accrued interest receivable | 1,426 |  |  |  |
Net Assets Acquired: Core deposit intangible | 564 |  |  |  |
Net Assets Acquired: Other assets | 5,117 |  |  |  |
Net Assets Acquired: Time deposits | (414,113) |  |  |  |
Net Assets Acquired: Accrued interest payable | (175) |  |  |  |
Net Assets Acquired: Other liabilities | (6,496) |  |  |  |
Net Assets Acquired | 36,222 |  |  |  |
Goodwill resulting from merger | $ 17,959 | 29,290 |  | $ 11,331 |
UpState New York Bancorp, Inc. [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Norwood Financial Corp shares issued | 1,865,738 |  |  |  |
Purchase price paid to each UpState New York Bancorp, Inc. common share exchanged for cash | $ 33.33 |  |  |  |
UpState New York Bancorp, Inc. shareholders' equity |  |  | $ 44,800 |  |
UpState New York Bancorp, Inc. goodwill and intangibles |  | (17,959) |  |  |
Goodwill resulting from merger |  | $ 17,959 |  |  |

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