Parent Company Only Condensed Financial Information, Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Condensed Statements of Income [Abstract]
Interest income	$ 24,752	$ 17,644
Interest expense	(3,749)	(5,475)
Other expense	(2,106)	(649)
Loss before tax benefits	(4,886)	(1,049)
Income tax benefits	937	407
Net loss attributable to Broadway Financial Corporation	(4,050)	(642)
Broadway Financial Corporation [Member]
Condensed Statements of Income [Abstract]
Interest income	27	23
Interest expense	(60)	(133)
Other expense	(1,982)	(1,033)
Loss before tax benefits	(2,015)	(1,143)
Income tax benefits	405	291
Equity in undistributed subsidiary (loss) income	(2,440)	210
Net loss attributable to Broadway Financial Corporation	$ (4,050)	$ (642)