Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 15, 2024	Jun. 30, 2023
Document Information [Line Items]
Entity Central Index Key	0000931584
Entity Registrant Name	UNIVERSAL STAINLESS & ALLOY PRODUCTS INC
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2023
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	001-39467
Entity Incorporation, State or Country Code	DE
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
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 121,000,000
Entity Common Stock, Shares Outstanding		9,189,807
Auditor Firm ID	274
Auditor Name	EISNERAMPER LLP
Auditor Location	Philadelphia, Pennsylvania
Preferred Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Preferred Stock Purchase Rights
Security Exchange Name	NASDAQ
No Trading Symbol Flag	true
Common Stock [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