| Document And Entity Information | May 01, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Universal Stainless & Alloy Products, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | May 01, 2024 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-39467 |
| Entity, Tax Identification Number | 25-1724540 |
| Entity, Address, Address Line One | 600 Mayer Street |
| Entity, Address, City or Town | Bridgeville |
| Entity, Address, State or Province | PA |
| Entity, Address, Postal Zip Code | 15017 |
| City Area Code | 412 |
| Local Phone Number | 257-7600 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0000931584 |
| CommonStockParValue0001PerShare Custom [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Common Stock, par value $0.001 per share |
| Trading Symbol | USAP |
| Security Exchange Name | NASDAQ |
| PreferredStockPurchaseRights Custom [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Preferred Stock Purchase Rights |
| Security Exchange Name | NASDAQ |
| No Trading Symbol Flag | true |
