Guarantees, Commitments, and Contingencies	9 Months Ended
Guarantees, Commitments, and Contingencies	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Guarantees, Commitments, and Contingencies	Guarantees, Commitments, and Contingencies Guarantees In the normal course of business, Mid Penn makes various commitments and incurs certain contingent liabilities which are not reflected in the accompanying consolidated financial statements. The commitments include various guarantees and commitments to extend credit. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Mid Penn evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary upon extension of credit, is based on management’s credit evaluation of the customer. Standby letters of credit and financial guarantees written are conditional commitments to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. Mid Penn had $51.7 million and $55.6 million of standby letters of credit outstanding as of September 30, 2022 and December 31, 2021, respectively. Mid Penn does not anticipate any losses because of these transactions. The amount of the liability as of September 30, 2022 and December 31, 2021 for payment under standby letters of credit issued was not considered material. Commitments The reserve for unfunded lending commitments represents management’s estimate of losses inherent in its unfunded loan commitments and is recorded in other liabilities on the consolidated balance sheet. The reserve for unfunded lending commitments was $85 thousand at September 30, 2022 and $72 thousand at December 31, 2021. During the second quarter of 2020, Mid Penn’s Board of Directors had approved Mid Penn Bank to enter into a commitment to purchase a limited partnership interest in a low-income housing project to construct thirty-nine apartments and common amenities in Cumberland County, Pennsylvania. All of the units are expected to qualify for Federal Low-Income Housing Tax Credits ("LIHTC") as provided for in Section 42 of the Internal Revenue Code of 1986, as amended. Mid Penn’s limited partner capital contribution commitment is expected to be $10.8 million, which will be paid in installments over the course of construction of the low-income housing facilities. The investment in the limited partnership will be reported in other assets on the balance sheet and amortized over a ten-year period. The project has been conditionally awarded $1.2 million in annual LIHTCs by the Pennsylvania Housing Finance Agency, with a total anticipated LIHTC amount of $12.0 million to be received by Mid Penn over the ten-year amortization period. Mid Penn’s commitment to purchase the limited partnership interest is conditional upon (i) the review and approval of all closing documents, (ii) an opinion letter for tax counsel to the Partnership that the project qualifies for the LIHTCs, and (iii) review and approval by Mid Penn of other documents it may deem necessary. As a result of the Riverview Acquisition on November 30, 2021, Mid Penn assumed a commitment to purchase a limited partnership interest in a low-income housing project to preserve and rehabilitate three buildings consisting of seventeen apartments and two commercial shops in Schuylkill County, Pennsylvania. All the units are expected to qualify for LIHTCs. Mid Penn’s limited partner capital contribution commitment is expected to be $4.4 million, which will be paid in installments over the course of construction of the low-income housing facilities. The investment in the limited partnership will be reported in other assets on the balance sheet and amortized over a ten-year period. Additionally, the agreement commits Mid Penn to a construction loan in the maximum principal amount of $3.5 million, which will bear interest at 5.5% annum with a term of twenty-four months. The project has been conditionally awarded $484 thousand in annual LIHTCs by the Pennsylvania Housing Finance Agency, with a total anticipated LIHTC amount of $4.8 million to be received by Mid Penn over the ten-year amortization period. Mid Penn’s commitment to purchase the limited partnership interest is conditional upon (i) the review and approval of all closing documents, (ii) an opinion letter for tax counsel to the Partnership that the project qualifies for the LIHTCs, and (iii) review and approval by Mid Penn of other documents it may deem necessary. Contingencies As of September 30, 2022, Mid Penn had received $42.6 million of nonrefundable loan processing fees related to the loans disbursed as a result of Mid Penn’s participation in the SBA’s PPP, consisting of (i) $20.9 million of loan processing fees received during the year ended December 31, 2020, (ii) $18.0 million of loan processing fees received during the year ended December 31, 2021, and (iii) $3.7 million during the nine months ended September 30, 2022. These PPP loan processing fees, and any offsetting loan origination costs, were deferred in accordance with FASB ASC 310-20, Receivables—Nonrefundable Fees and Other Costs, and have been, and will continue to be, amortized to interest and fees on loans and leases on the consolidated statement of income over the life of the respective loans. The processing fees received from the SBA for administering the application for, and disbursing of, the PPP loans may be subject to clawback (or if the SBA has not yet paid the fee, the fee may not be paid), after full disbursement of a PPP loan if (i) the PPP loan is cancelled or voluntarily terminated and repaid after disbursement but before the borrower certification safe harbor date, (ii) the PPP loan is cancelled, terminated, or repaid after disbursement (and after the borrower certification safe harbor date) because the SBA conducted a loan review and determined that the borrower was ineligible for a PPP loan, or (iii) the lender has not fulfilled its obligations under the PPP regulations. As of September 30, 2022, Mid Penn is not aware of any PPP loans outstanding, for which fees have been received from the SBA, that have been cancelled, terminated, or repaid due to a borrower being determined to be ineligible for a PPP loan. Litigation Mid Penn is subject to lawsuits and claims arising out of its normal conduct of business. In the opinion of management, after consultation with legal counsel, the ultimate disposition of these matters is not expected to have a material adverse effect on the consolidated financial condition of Mid Penn.