Bancorp 34, Inc. Parent Company Only Financial Information (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items]
Interest income	$ 28,124	$ 23,761
Interest expense	12,949	5,314
Merger expense	3,010
Other expenses	1,454	1,652
Benefit for income taxes	(453)	58
Net (loss) income	(3,402)	1,330
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Interest income	117	52
Interest expense	(1,054)	(1,054)
Equity in (loss) income of subsidiary bank	(1,680)	2,162
Merger expense	(814)
Net asset value adjustment, other investments	(100)
Other expenses	(211)	(103)
Benefit for income taxes	340	273
Net (loss) income	$ (3,402)	$ 1,330