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Condensed Consolidated Balance Sheets - USD ($)
Mar. 31, 2024
Dec. 31, 2023
 Assets    
Cash and cash equivalents $ 5,492,612 $ 6,109,806
Cash segregated in compliance with regulations 2,959,994 1,247,881
Grants receivable, includes unbilled receivables of $503,777 and $783,520 1,111,611 882,319
Clearing deposits 703,740 260,000
Prepaid expenses and other current assets 494,463 523,788
Investment securities, at amortized cost (U.S. Treasury Bills) 21,381,362 24,658,611
Investment securities, at fair value (held by our licensed broker dealer) (Note 2) 4,999,237 5,771,634
Investment securities, at cost less impairment 200,000 200,000
Deferred offering cost 266,945 69,303
Deferred costs related to deferred revenue 147,503 75,328
Property and equipment, net 946,850 866,490
Operating lease right-of-use assets, net 2,235,559 2,320,119
Total assets 40,939,876 42,985,279
LIABILITIES AND EQUITY    
Accounts payable 916,782 578,214
Accrued expenses 515,853 1,105,078
Payables to non-customers 2,374,132 1,405,293
Payables to customers 1,115,663
Deferred grant reimbursement 133,909 140,703
Deferred revenue 20,000 20,000
Operating lease liabilities 2,339,955 2,415,889
Total liabilities 7,416,294 5,665,177
Commitments and Contingencies (Note 9)
Equity:    
Preferred shares, 10,000,000 authorized shares at no par value; 0 issued and outstanding
Paid-in-capital 53,075,777 49,405,779
Accumulated deficit (19,308,352) (12,092,927)
Total MDB Capital Holdings, LLC Members’ equity 33,767,425 37,312,852
Non-controlling interest (243,843) 7,250
Total equity 33,523,582 37,320,102
Total liabilities and equity 40,939,876 42,985,279
Common Class A [Member]    
Equity:    
Common stock, value
Common Class B [Member]    
Equity:    
Common stock, value