Note 13 - Commitments and Contingencies (Details Textual) - USD ($)	Sep. 28, 2021	Jun. 03, 2024
Letter of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 474,229
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
Usio’s Motion for Reconsideration of Order Granting Plaintiff’s Supplemental Rule 166(g) [Member] | Letter of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 474,229