Note 14 - Legal Proceedings (Details Textual) - USD ($)	Feb. 07, 2022	Sep. 28, 2021
Counterclaim By Former Chief Revenue Officer Against USIO [Member] \| Settled Litigation [Member] \| Subsequent Event [Member]
Litigation Settlement, Amount Awarded from Other Party	$ 13,742.50
Claim By KDHM, LLC Against Usio Output Solutions, Inc. [Member]
Loss Contingency, Damages Sought, Value		$ 317,000
Counterclaim By Usio Output Solutions, Inc. Against KDHM, LLC [Member]
Amount Failed to Disclose As Required		$ 305,000

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration