Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2024	Mar. 21, 2025	Jun. 30, 2024
Document Information [Line Items]
Entity Central Index Key	0001088034
Entity Registrant Name	Usio, Inc.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Document Transition Report	false
Entity File Number	000-30152
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	98-0190072
Entity Address, Address Line One	3611 Paesanos Parkway, Suite 300
Entity Address, City or Town	San Antonio
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	78231
City Area Code	210
Local Phone Number	249-4100
Title of 12(b) Security	Common stock, par value $0.001 per share
Trading Symbol	USIO
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 29,845,563
Entity Common Stock, Shares Outstanding		26,514,356
Auditor Name	Pannell Kerr Forster of Texas, P.C.
Auditor Location	Houston, Texas
Auditor Firm ID	342