Significant Accounting Policies	9 Months Ended
Significant Accounting Policies	Sep. 30, 2022
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Basis of Presentation and Principles of Consolidation These unaudited consolidated financial statements are prepared and presented in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and the rules and regulations of the Securities and Exchange Commission (“SEC”) applicable to interim financial statements. While these consolidated financial statements and the accompanying notes thereof reflect all normal recurring adjustments that are, in the opinion of management, necessary for fair presentation of the results of the interim period, they do not include all of the information and footnotes required by U.S. GAAP for complete consolidated financial statements. These consolidated financial statements and their accompanying notes should be read in conjunction with the consolidated financial statement disclosures in our 2021 annual consolidated financial statements. Operating results reported for the three and nine months ended September 30, 2022 might not be indicative of the results for any subsequent period or the entire year ending December 31, 2022. Sezzle Inc. (the “Company” or “Sezzle”) uses the same accounting policies in preparing quarterly and annual consolidated financial statements. The Company consolidates the accounts of subsidiaries for which it has a controlling financial interest. The accompanying consolidated financial statements include all the accounts and activity of Sezzle Inc. and its wholly-owned subsidiaries. All intercompany balances and transactions are eliminated in consolidation. Segments We conduct our operations through a single operating segment and, therefore, one reportable segment. There are no significant concentrations by state or geographical location. Fair Value Fair values are based on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (i.e. an exit price). The accounting guidance includes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The three levels of the fair value hierarchy are as follows: •Level 1 — Unadjusted quoted prices for identical assets or liabilities in active markets; •Level 2 — Inputs other than quoted prices in active markets for identical assets and liabilities that are observable either directly or indirectly for substantially the full term of the asset or liability; and •Level 3 — Unobservable inputs for the asset or liability, which include management’s own assumption about the assumptions market participants would use in pricing the asset or liability, including assumptions about risk. The Company measures the value of its money market securities on a regular basis. The fair value of its money market securities, totaling $359,413 and $6,408,389 as of September 30, 2022 and December 31, 2021, respectively, are based on Level 1 inputs and are included within cash and cash equivalents on the consolidated balance sheets. Subsequent Events The Company has evaluated events and transactions occurring subsequent to the consolidated balance sheet as of September 30, 2022 for items that should potentially be recognized or disclosed in these consolidated financial statements. The evaluation was conducted through the date these consolidated financial statements were issued. Liquidity and Financial Condition The Company meets its liquidity requirements primarily through proceeds from its line of credit, of which it is subject to various covenants. During the year ended December 31, 2021, the Company incurred net losses from its operations, which if continued at the same level in future periods would result in the breach of one or more of such line of credit covenants. The Company's line of credit is a significant component of its working capital management. On February 25, 2022 and July 31, 2022, the Company amended its existing line of credit covenants as disclosed in Note 7. Line of Credit within the notes to the consolidated financial statements. On March 10, 2022, the Company undertook a workforce reduction to provide annualized cost savings. The Company also scaled back international operations, restructured contracts with certain merchants and partners, and phased-in the introduction of Sezzle Premium, a paid subscription service for users to access large, non-integrated merchants for a monthly or annual fee. On October 14, 2022, Sezzle entered into a revolving credit facility with Bastion Funding IV, LLC, as administrative agent, and other certain lenders. The revolving credit facility has a maturity date of October 14, 2024 and allows the Company to borrow up to $100 million. The implementation of these plans allows the Company to continue as a going concern through at least November 14, 2023. The accompanying consolidated financial statements assume that the Company will continue as a going concern and have been prepared on the basis of the realization of assets and the satisfaction of liabilities and commitments in the normal course of business. The accompanying consolidated financial statements do not include any adjustments to the recoverability and classifications of recorded assets and liabilities as a result of uncertainties. Reclassifications Certain prior period amounts have been reclassified to conform with the current period presentation format. These reclassifications had no effect on operating income (loss) or total comprehensive income (loss). Recent Accounting Pronouncements In March 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2022-02, “Financial Instruments – Credit Losses: Troubled Debt Restructurings and Vintage Disclosures” which requires an entity to disclose current-period gross writeoffs by year of origination for financing receivables and net investments in leases within the scope of Subtopic 326-20, Financial Instruments—Credit Losses—Measured at Amortized Cost. As a smaller reporting company, Sezzle plans to adopt this standard beginning January 1, 2023 in conjunction with ASU 2016-13. At that time, Sezzle will include this additional disclosure within its vintage disclosures required for public business entities in accordance with paragraph 326-20-50-6, which requires that an entity disclose the amortized cost basis of financing receivables by credit-quality indicator and class of financing receivable by year of origination. None of the other recent accounting pronouncements issued by the FASB or the SEC during the nine months ended September 30, 2022 are within scope for the Company; therefore, it does not expect any of the other recent accounting pronouncements issued to have a material effect on the Company’s consolidated financial statements.