Earnings Per Share of Common Stock (Details) $ / shares in Units, $ in Thousands			3 Months Ended		9 Months Ended
		Nov. 01, 2023	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) $ / shares shares
Earnings Per Share of Common Stock [Abstract]
Net income attributable to Broadway Financial Corporation | $			$ 91	$ 1,318	$ 1,907	$ 4,130
Less net income attributable to participating securities | $			1	7	27	25
Income available to common stockholders | $			$ 90	$ 1,311	$ 1,880	$ 4,105
Weighted average common shares outstanding for basic earnings per common share (in shares)	[1]		8,709,301	9,069,410	8,756,189	9,048,363
Add: dilutive effects of unvested restricted stock awards (in shares)	[1]		116,493	51,069	123,004	55,269
Add: dilutive effects of assumed exercise of stock options (in shares)	[2]		0	0	0	0
Weighted average common shares outstanding for diluted earnings per common share (in shares)	[1]		8,825,794	9,120,479	8,879,193	9,103,632
Earnings per common share-basic (in dollars per share) | $ / shares	[1]		$ 0.01	$ 0.14	$ 0.21	$ 0.45
Earnings per common share-diluted (in dollars per share) | $ / shares	[1]		$ 0.01	$ 0.14	$ 0.21	$ 0.45
Reverse stock split ratio		0.125
Anti-dilutive vested stock options (in shares)					31,250

[1] Retroactively adjusted for the 1-for-8 reverse stock split effective November 1, 2023 - see Note 1

[2] Excluding 31,250 anti-dilutive vested stock options