Earnings Per Share of Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share of Common Stock [Abstract]
Net income (loss) attributable to Broadway Financial Corporation	$ 1,318	$ 182	$ 4,130	$ (2,604)
Less net income (loss) attributable to participating securities	7	0	25	0
Income (loss) available to common stockholders	$ 1,311	$ 182	$ 4,105	$ (2,604)
Weighted average common shares outstanding for basic earnings (loss) per common share (in shares)	72,555,282	71,222,869	72,386,900	56,403,545
Add: dilutive effects of unvested restricted stock awards (in shares)	408,552	228,082	442,150	0
Weighted average common shares outstanding for diluted earnings (loss) per common share (in shares)	72,963,834	71,450,951	72,829,050	56,403,545
Earnings (loss) per common share - basic (in dollars per share)	$ 0.02	$ 0	$ 0.06	$ (0.05)
Earnings (loss) per common share - diluted (in dollars per share)	$ 0.02	$ 0	$ 0.06	$ (0.05)
Stock Options [Member]
Earnings Per Share of Common Stock [Abstract]
Unvested stock awards or potential common shares issuable under stock options (in shares)				450,000
Unvested Restricted Stock Awards [Member]
Earnings Per Share of Common Stock [Abstract]
Unvested stock awards or potential common shares issuable under stock options (in shares)		0