Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated balance sheet as of March 31, 2017, which has been derived from audited financial statements, and the accompanying unaudited interim consolidated financial statements of Nicholas Financial, Inc. (including its subsidiaries, the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q pursuant to the Securities and Exchange Act of 1934, as amended in Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete consolidated financial statements, although the Company believes that the disclosures made are adequate to ensure the information is not misleading. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for interim periods are not necessarily indicative of the results that may be expected for the year ending March 31, 2018. It is suggested that these consolidated financial statements be read in conjunction with the consolidated financial statements and accompanying notes thereto included in the Company’s Annual Report on Form 10-K for the year ended March 31, 2017 as filed with the Securities and Exchange Commission on June 14, 2017. The March 31, 2017 consolidated balance sheet included herein has been derived from the March 31, 2017 audited consolidated balance sheet included in the aforementioned Form 10-K. The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses on finance receivables and the fair value of interest rate swap agreements.
Revenue Recognition	Revenue Recognition Finance receivables consist of automobile finance installment contracts (“Contracts”) and direct consumer loans (“Direct Loans”). Interest income on finance receivables is recognized using the interest method. Accrual of interest income on finance receivables is suspended when a loan enters bankruptcy status, is contractually delinquent for 61 days or more or the collateral is repossessed, whichever is earlier. Chapter 13 bankruptcy accounts are accounted for under the cost-recovery method. Interest income on Chapter 13 bankruptcy accounts does not resume until all principal amounts are recovered (see Note 4). A dealer discount represents the difference between the finance receivable, net of unearned interest, of a Contract, and the amount of money the Company actually pays for the Contract. The discount negotiated by the Company is a function of the lender, the wholesale value of the vehicle and competition in any given market. In making decisions regarding the purchase of a particular Contract the Company considers the following factors related to the borrower: place and length of residence; current and prior job status; history in making installment payments for automobiles; current income; and credit history. In addition, the Company examines its prior experience with Contracts purchased from the dealer from which the Company is purchasing the Contract, and the value of the automobile in relation to the purchase price and the term of the Contract. The entire amount of discount is amortized as an adjustment to yield using the interest method over the life of the loan. The average dealer discount associated with new volume for the three months ended December 31, 2017 and 2016 was 6.89% and 6.87%, respectively in relation to the total amount financed. The average dealer discount associated with new volume for the nine months ended December 31, 2017 and 2016 was 7.23% and 7.00%, respectively. The amount of future unearned income is computed as the product of the Contract rate, the Contract term and the Contract amount. Deferred revenues consist primarily of commissions received from the sale of ancillary products. These products include automobile warranties, roadside assistance programs, accident and health insurance, credit life insurance, involuntary unemployment insurance coverage, and forced placed automobile insurance. These commissions are amortized over the life of the contract using the interest method.
Reclassifications	Reclassifications The Company made certain reclassifications to the 2016 statements of cash flows. The amortization of deferred revenues decreased cash flows from operating activities by $1.342 million for 2016 and correspondingly increased cash flows from investing activities.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In August 2016, the Financial Accounting Standards Board (“FASB”) issued the Accounting Standards Update (“ASU”) 2016-15 Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payment. The new guidance focuses on making the Statement of Cash Flows more uniform for companies. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The Company is currently evaluating the impact of the adoption of this ASU on the consolidated financial statements, and is in the process of analyzing its current presentation of the Consolidated Statements of Cash Flows. At this time, the Company does not believe ASU 2016-15 will have a material impact. In June 2016, the FASB issued the ASU 2016-13 Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Among other things, the amendments in this ASU require the measurement of all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. The ASU also requires additional disclosures related to estimates and judgments used to measure all expected credit losses. The new guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early application will be permitted for all organizations for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this ASU on the consolidated financial statements, and is collecting and analyzing data that will be needed to produce historical inputs into any models created as a result of adopting this ASU. At this time, we believe the adoption of this ASU will likely have a material adverse effect on our consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, “Leases”, intended to improve financial reporting about leasing transactions. The ASU affects all companies and other organizations that lease assets such as real estate, airplanes, and manufacturing equipment. The ASU will require organizations that lease assets—referred to as “lessees”—to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. The accounting by organizations that own the assets leased by the lessee—also known as lessor accounting— will remain largely unchanged from current U.S. GAAP. ASU 2016-02 is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years. Early application is permitted. While the Company has not specifically evaluated each lease agreement, we anticipate upon adoption, the Company will add the impact of the full operating lease terms that meets the scope, using the present value of future minimum lease payments to the balance sheet. The Company will continue to evaluate the impact of the adoption of this ASU on the consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments—Recognition and Measurement of Financial Assets and Liabilities,” which is intended to improve the recognition and measurement of financial instruments by requiring: equity investments (other than equity method or consolidation) to be measured at fair value with changes in fair value recognized in net income; public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (i.e., securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements; eliminating the requirement to disclose the fair value of financial instruments measured at amortized cost for organizations that are not public business entities; eliminating the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet; and requiring a reporting organization to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk (also referred to as “own credit”) when the organization has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. This ASU is effective for public companies for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. This ASU permits early adoption of the instrument-specific credit risk provision. While the Company is currently evaluating the impact of the pending adoption of this ASU on the Company’s consolidated financial statements, the Company does not believe it will have a material impact on the consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)”. The ASU requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU, and all subsequently issued clarifying ASUs, will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The standard permits the use of either the retrospective or cumulative effect transition method. On July 9, 2015, the FASB approved the deferral of the effective date of ASU 2014-09 by one year. As a result, ASU 2014-09 will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. The ASU would permit public entities to adopt the ASU early, but not before the original effective date (i.e., annual periods beginning after December 15, 2016). The impact of the standard is limited to a large extent due to Topic 606 including a scope exception for finance receivables. Since substantially all of the Company’s revenue streams are generated from activities that are outside the scope of the new standard, the Company does not believe that this standard will have a material impact on the Company’s financials. The Company has begun analyzing in-scope contracts using the five-step process outlined in Topic 606 and expects to finalize our conclusion during the quarter ending March 31, 2018. The Company does not believe there are any other recently issued accounting standards that have not yet been adopted that will have a material impact on the Company’s consolidated financial statements.