SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND RECENTLY ADOPTED ACCOUNTING STANDARDS UPDATES ("ASU") (Policies)	9 Months Ended
	Jun. 30, 2023
Accounting Policies [Abstract]
Adopted ASUs	Significant accounting policies in effect and disclosed within the Company’s most recent audited consolidated financial statements as of September 30, 2022 remain substantially unchanged, except for the following: PRINCIPLES OF CONSOLIDATION The Consolidated Financial Statements include the accounts of Pathward Financial, Inc. ("Pathward Financial" or the “Company” or "us"), a registered bank holding company located in Sioux Falls, South Dakota, and its wholly-owned subsidiaries. The Company's subsidiaries include Pathward®, National Association ("Pathward®, N.A." or "Pathward" or "the “Bank”), a national bank whose primary federal regulator is the Office of the Comptroller of the Currency (the "OCC"), and Pathward Venture Capital, LLC, a wholly-owned service corporation subsidiary of Pathward, N.A. which invests in companies in the financial services industry. All significant intercompany balances and transactions have been eliminated. The Company also owns 100% of First Midwest Financial Capital Trust I (the “Trust”), which was formed in July 2001 for the purpose of issuing trust preferred securities, and Crestmark Capital Trust I, which was acquired from the Crestmark Acquisition in August 2018. The Trust and Crestmark Capital Trust I are not included in the Consolidated Financial Statements of the Company. In addition, the Company is a variable interest holder in certain entities in which the equity holders do not have the characteristics of a controlling financial interest or where the entity does not have enough equity at risk to finance its activities without additional subordinated financial support (referred to as variable interest entities or "VIEs"). The Company's variable interest arises from contractual ownership or other monetary interests that change with fluctuations in the VIE's net asset value. The primary beneficiary is the entity which has both: (1) the power to direct the activities of the VIE that most significantly impacts the VIE's economic performance, and (2) the obligation to absorb losses or receive benefits of the entity that could potentially be significant to the VIE. To determine whether or not a variable interest the Company holds could potentially be significant to the VIE, the Company considers both qualitative and quantitative factors regarding the nature, size and form of the Company's involvement with the VIE. Further, the Company assesses whether or not the Company is the primary beneficiary of a VIE on an ongoing basis. If the determination is made that the Company is the primary beneficiary, then that entity is included in the Consolidated Financial Statements. Noncontrolling interests represent the portion of net income and equity attributable to third-party owners of consolidated subsidiaries that are not wholly-owned by Pathward Financial. All of the Company's noncontrolling interests relate to the Company's Commercial Finance business line. Variable Interest Entities In the normal course of business, the Company enters into off-balance sheet transactions with special purpose entities ("SPEs"), which can be structured as corporations, trusts, limited liability companies, or partnerships and are established for a limited purpose. Currently, the Company utilizes a SPE facility for certain term lending products within the Company's Commercial Finance business line. The Company participated in the structuring of the SPE, has a minority ownership interest in the SPE, and acts as servicer for the SPE in exchange for a servicing fee. Pathward is not the primary beneficiary of the SPE as our risk of loss or right to benefits from the SPE are not significant. As of June 30, 2023, there are $9.9 million of commercial term loans held at the SPE, and the Company’s equity investment in the SPE is $0.9 million. The Company’s maximum exposure to loss from the SPE is limited to its equity investment. As of June 30, 2023, there are $3.0 million of commercial term loans classified as held for sale related to this VIE. Additional information on loans transferred during the period is included in Note 5. Loans and Leases, Net. Loan Servicing and Transfers of Financial Assets Transfers of loans, portions of loans meeting the definition of a participating interest, and other financial assets are accounted for as sales on the transaction settlement date when control has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been legally isolated from the Company, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of such right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through a repurchase agreement or other means. Upon sale, the loans or other financial assets are derecognized from the Company’s Consolidated Statements of Financial Condition. If the transfer does not satisfy the aforementioned control criteria, the transaction is recorded as a secured borrowing with the loans or other financial assets remaining on the Company’s Consolidated Statements of Financial Condition and proceeds recognized as a liability. The Company sells loan participations, generally without recourse, in both the commercial and consumer segments. The Company also sells commercial Small Business Administration ("SBA") and United States Department of Agriculture ("USDA") loans to third parties, generally without recourse. The Bank generally retains the right to service the sold loans for a fee. If the fee is determined commensurate and customary with market terms, no servicing asset or liability is recorded. Any fee that is above or below market terms results in a servicing asset or liability and is included within Other Assets on the Consolidated Statements of Financial Condition. The following ASU became effective for the Company on October 1, 2022, and did not have a material impact on the Company’s significant accounting policies or Condensed Consolidated Financial Statements: –ASU 2021-05, Leases (Topic 842): Lessors - Certain Leases with Variable Lease Payments.