Parent Company Only Condensed Financial Information, Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Condensed Statements of Income [Abstract]
Interest income	$ 17,644	$ 16,847
Interest expense	(5,475)	(6,386)
Other expense	(628)	(662)
Loss before income tax benefits	(1,049)	(551)
Income tax benefits	407	345
Net loss	(642)	(206)
Broadway Financial Corporation [Member]
Condensed Statements of Income [Abstract]
Interest income	23	23
Interest expense	(133)	(247)
Other expense	(1,033)	(720)
Loss before income tax benefits	(1,143)	(944)
Income tax benefits	291	279
Equity in undistributed subsidiary income	210	459
Net loss	$ (642)	$ (206)