Earnings Per Share of Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share of Common Stock [Abstract]
Net income (loss) attributable to Broadway Financial Corporation	$ 1,854	$ 701	$ 2,812	$ (2,786)
Less net income (loss) attributable to participating securities	12	0	18	0
Income (loss) available to common stockholders	$ 1,842	$ 701	$ 2,794	$ (2,786)
Weighted average common shares outstanding for basic earnings (loss) per common share (in shares)	72,527,974	70,163,639	72,292,735	48,873,496
Add: dilutive effects of unvested restricted stock awards (in shares)	461,047	140,247	467,890	0
Add: dilutive effects of assumed exercise of stock options (in shares)	0	0	7,982	0
Weighted average common shares outstanding for diluted earnings (loss) per common share (in shares)	72,989,021	70,303,886	72,768,607	48,873,496
Earnings (loss) per common share - basic (in dollars per share)	$ 0.03	$ 0.01	$ 0.04	$ (0.06)
Earnings (loss) per common share - diluted (in dollars per share)	$ 0.03	$ 0.01	$ 0.04	$ (0.06)