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Schedule of Basic and Fully Diluted (Details) - USD ($)
 3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Jun. 30, 2022
Jun. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Net loss attributable to MDB Capital Holdings, LLC $ (3,008,461) $ (2,083,580)     $ (1,419,350) $ (4,783,904)
Common Class A [Member]            
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Weighted average shares outstanding - basic 2,828,241 2,628,966 738,343 412,648 2,696,121 1,154,420
Weighted average shares outstanding - diluted 2,828,241 2,628,966 738,343 412,648 2,696,121 1,154,420
Net loss per share - basic $ (0.49) $ (0.27) $ (0.73) $ (2.25) $ (0.24) $ (1.43)
Net loss per share - diluted $ (0.49) $ (0.27) $ (0.73) $ (2.25) $ (0.24) $ (1.43)
Common Class B [Member]            
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Weighted average shares outstanding - basic 5,000,000 5,000,000     5,000,000 5,000,000
Weighted average shares outstanding - diluted 5,000,000 5,000,000     5,000,000 5,000,000
Net loss per share - basic $ (0.32) $ (0.27)     $ (0.15) $ (0.63)
Net loss per share - diluted $ (0.32) $ (0.27)     $ (0.15) $ (0.63)
Common Stock [Member] | Common Class A [Member]            
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Net loss attributable to MDB Capital Holdings, LLC $ (1,390,236) $ (718,008)     $ (655,900) $ (1,648,548)
Weighted average shares outstanding - basic 2,828,241 2,628,966     2,696,121 1,154,420
Weighted average shares outstanding - diluted 2,828,241 2,628,966     2,696,121 1,154,420
Net loss per share - basic $ (0.49) $ (0.27)     $ (0.24) $ (1.43)
Net loss per share - diluted $ (0.49) $ (0.27)       $ (1.43)
Common Stock [Member] | Common Class B [Member]            
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Net loss attributable to MDB Capital Holdings, LLC $ (1,618,198) $ (1,365,572)     $ (763,450) $ (3,135,356)
Weighted average shares outstanding - basic 5,000,000 5,000,000     5,000,000 5,000,000
Weighted average shares outstanding - diluted 5,000,000 5,000,000     5,000,000 5,000,000
Net loss per share - basic $ (0.32) $ (0.27)     $ (0.15) $ (0.63)
Net loss per share - diluted $ (0.32) $ (0.27)     $ (0.15) $ (0.63)