Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2022	Apr. 27, 2023	Jun. 30, 2022
Document Information [Line Items]
Entity, Registrant Name	USIO, INC.
Document, Type	10-K/A
Document, Annual Report	true
Document, Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document, Fiscal Period Focus	FY
Document, Fiscal Year Focus	2022
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
Entity, Shell Company	false
Entity, Public Float			$ 38,541,584
Entity, Common Stock Shares, Outstanding		26,536,638
Auditor Firm ID	297
Auditor Name	ADKF, P.C.
Auditor Location	San Antonio, Texas United States
Amendment Description	This Amendment No. 1 to the Annual Report on Form 10-K (this “Amendment No. 1”) of Usio, Inc. (the “Company,” “we,” “us,” and “our,”) amends the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the Securities and Exchange Commission (the “SEC”) on March 8, 2023 (the “Original Form 10-K”). This Amendment No. 1 is being filed for the sole purpose of including the information required by Part III of Form 10-K.   In accordance with Rules 12b-15 and 13a-14 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), we have also amended Part IV, Item 15 to include currently dated certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 from our principal executive officer and principal financial officer. Because no financial statements have been included in this Amendment No. 1 and this Amendment No. 1 does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4 and 5 of the certifications have been omitted. Similarly, because no financial statements have been included in this Amendment No. 1, certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 have been omitted.   Except as described above, this Amendment No. 1 does not amend any other information set forth in the Original Form 10-K, and we have not updated disclosures included therein to reflect any subsequent events. This Amendment No. 1 should be read in conjunction with the Original Form 10-K and with our other filings made with the SEC subsequent to the filing of the Original Form 10-K.   Terms not defined in this Amendment No. 1 have the meaning given to them in the Original Form 10-K.
Amendment Flag	true
Entity, Central Index Key	0001088034