Note 13 - Income Taxes - (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2022	Mar. 01, 2022	Mar. 31, 2015
Operating Loss Carryforwards, Total	$ 57,475
Operating Loss Carryforwards, Expiration Year	2033
American Gateway Financial Corporation [Member]
Operating Loss Carryforwards, Total			$ 287,000
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax			$ 984,000
Texas Citizens Bancorp [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Domestic		$ 8,800,000
Deferred Tax Assets, Charitable Contribution Carryforwards		229,000
Deferred Tax Assets, Operating Loss and Charitable Contribution Carryforwards, Not Subject to Expiration		$ 8,300,000