Restatement of Previously Issued Consolidated Financial Statements, Consolidated Statements of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Interest income [Abstract]
Interest and fees on loans receivable	$ 13,117	$ 11,544
Interest on available-for-sale securities	1,208	2,075
Other interest income	476	1,589
Total interest income	14,801	15,208
Interest expense [Abstract]
Interest on deposits	4,199	2,799
Interest on borrowings	2,557	4,885
Total interest expense	6,756	7,684
Net interest income	8,045	7,524
Provision for credit losses	1,914	247
Net interest income after provision for credit losses	6,131	7,277
Non-interest income [Abstract]
Service charges	43	40
Grants	25	0
Other	220	266
Total non-interest income	288	306
Non-interest expense [Abstract]
Compensation and benefits	5,284	4,269
Occupancy expense	540	503
Information services	706	707
Professional services	700	1,410
Advertising and promotional expense	46	28
Supervisory costs	193	177
Corporate insurance	67	61
Amortization of core deposit intangible	79	84
Operational loss	1,943	0
Other	639	571
Total non-interest expense	10,197	7,810
Loss before income taxes	(3,778)	(227)
Income tax benefit	(1,086)	(54)
Net loss	(2,692)	(173)
Less: Net loss attributable to non-controlling interest	(3)	(19)
Net loss attributable to Broadway Financial Corporation	(2,689)	(154)
Less: Preferred stock dividends	750	0
Net loss attributable to common stockholders	(3,439)	(154)
Other comprehensive income (loss), net of tax [Abstract]
Unrealized gains (losses) on securities available-for-sale arising during the period	2,416	(803)
Income tax expense (benefit)	701	(232)
Other comprehensive income (loss), net of tax	1,715	(571)
Comprehensive loss	$ (1,724)	$ (725)
Loss per common share - basic (in dollars per share)	$ (0.39)	$ (0.02)
Loss per common share - diluted (in dollars per share)	$ (0.39)	$ (0.02)
Previously Reported [Member]
Interest income [Abstract]
Interest and fees on loans receivable	$ 12,690
Interest on available-for-sale securities	1,208
Other interest income	476
Total interest income	14,374
Interest expense [Abstract]
Interest on deposits	4,199
Interest on borrowings	2,130
Total interest expense	6,329
Net interest income	8,045
Provision for credit losses	689	$ 260
Net interest income after provision for credit losses	7,356
Non-interest income [Abstract]
Service charges	43
Grants	25
Other	220
Total non-interest income	288
Non-interest expense [Abstract]
Compensation and benefits	5,284
Occupancy expense	540
Information services	706
Professional services	700
Advertising and promotional expense	46
Supervisory costs	193
Corporate insurance	67
Amortization of core deposit intangible	79	84
Operational loss	1,943
Other	639
Total non-interest expense	10,197
Loss before income taxes	(2,553)
Income tax benefit	(692)
Net loss	(1,861)	(183)
Less: Net loss attributable to non-controlling interest	(3)
Net loss attributable to Broadway Financial Corporation	(1,858)
Less: Preferred stock dividends	750
Net loss attributable to common stockholders	(2,608)
Other comprehensive income (loss), net of tax [Abstract]
Unrealized gains (losses) on securities available-for-sale arising during the period	2,416
Income tax expense (benefit)	701
Other comprehensive income (loss), net of tax	1,715
Comprehensive loss	$ (893)
Loss per common share - basic (in dollars per share)	$ (0.3)
Loss per common share - diluted (in dollars per share)	$ (0.3)
Adjustments [Member]
Interest income [Abstract]
Interest and fees on loans receivable	$ 427	415
Total interest income	427
Interest expense [Abstract]
Interest on borrowings	427	415
Total interest expense	427
Net interest income	0
Provision for credit losses	1,225	(13)
Net interest income after provision for credit losses	(1,225)
Non-interest expense [Abstract]
Loss before income taxes	(1,225)
Income tax benefit	(394)
Net loss	(831)	$ 10
Net loss attributable to Broadway Financial Corporation	(831)
Net loss attributable to common stockholders	(831)
Other comprehensive income (loss), net of tax [Abstract]
Comprehensive loss	$ (831)
Loss per common share - basic (in dollars per share)	$ (0.11)
Loss per common share - diluted (in dollars per share)	$ (0.11)