| Document and Entity Information | Sep. 27, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 27, 2024 |
| Entity Registrant Name | NICHOLAS FINANCIAL, INC. |
| Entity Central Index Key | 0001000045 |
| Entity Incorporation, State or Country Code | DE |
| Securities Act File Number | 0-26680 |
| Entity Tax Identification Number | 59-2506879 |
| Entity Address, Address Line One | 26133 US Highway 19 North |
| Entity Address, Address Line Two | Suite 300 |
| Entity Address, City or Town | Clearwater |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33763-2017 |
| City Area Code | 727 |
| Local Phone Number | 726-0763 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | NICK |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Current Fiscal Year End Date | --03-31 |
