v3.26.1
Schedule of Statement of Operation by Segment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Operating income:      
Unrealized (loss) on investment securities, net from the licensed broker dealer $ (331) [1] $ (275)  
Investment securities, at fair value, held by the non-licensed broker dealer (1) 85    
Realized gain on investment securities, net from the licensed broker dealer [2] 14    
Fee income from the licensed broker dealer 4,282 [3] 2,221 [4]  
Impairment loss (200) [5] $ (50)
Other operating income 861 [6] 411 [7]  
Total operating income, net 4,911 2,157  
General and administrative costs:      
Compensation 14,969 20,057  
Operating expense, related party 1,833 1,486  
Professional fees 1,937 3,112  
Information technology 1,103 922  
Clearing and other charges 556 1,137  
General and administrative-other 2,239 2,608  
Total general and administrative costs 22,637 29,322  
Research and development costs 1,468  
Total operating costs 22,637 30,790  
Net operating loss (17,726) (28,633)  
Other income and expense:      
Miscellaneous income 75 112  
Interest expense (72)  
Interest income 617 1,179  
Gain related to dilution events 61 130  
Gain on deconsolidation of subsidiary 39,307  
Net income (loss) before income taxes (16,973) 12,023  
Income tax expense 11 2  
Income (loss) before equity method investee (16,984) 12,021  
Equity in loss of equity method investee (4,282) (420)  
Net income (loss) (21,266) 11,601  
Less net loss attributable to non-controlling interests (21) (90)  
Net income (loss) attributable to MDB Capital Holdings, LLC (21,245) 11,691  
Unrealized (loss) on investment securities, net from the licensed broker dealer (246) (275) [8]  
Broker Dealer & Intellectual Property Service [Member]      
Operating income:      
Unrealized (loss) on investment securities, net from the licensed broker dealer [1] (331)    
Investment securities, at fair value, held by the non-licensed broker dealer (1) 85    
Realized gain on investment securities, net from the licensed broker dealer [2] 14    
Fee income from the licensed broker dealer 4,282 [3] 2,221 [4]  
Impairment loss (200) [5]  
Other operating income 861 [6] 411 [7]  
Total operating income, net 4,911 2,157  
General and administrative costs:      
Compensation 2,875 3,226  
Operating expense, related party 1,471 1,301  
Professional fees 1,005 820  
Information technology 968 805  
Clearing and other charges 556 1,137  
General and administrative-other 742 806  
Total general and administrative costs 7,617 8,095  
Research and development costs  
Total operating costs 7,617 8,095  
Net operating loss (2,706) (5,938)  
Other income and expense:      
Miscellaneous income 75 112  
Interest expense (990) (779)  
Interest income 471 465  
Gain related to dilution events  
Gain on deconsolidation of subsidiary  
Net income (loss) before income taxes (3,150) (6,140)  
Income tax expense 11  
Income (loss) before equity method investee (3,161) (6,140)  
Equity in loss of equity method investee  
Net income (loss) (3,161) (6,140)  
Less net loss attributable to non-controlling interests  
Net income (loss) attributable to MDB Capital Holdings, LLC (3,161) (6,140)  
Unrealized (loss) on investment securities, net from the licensed broker dealer [8]   (275)  
Technology Development [Member]      
Operating income:      
Unrealized (loss) on investment securities, net from the licensed broker dealer [1]    
Investment securities, at fair value, held by the non-licensed broker dealer (1)    
Realized gain on investment securities, net from the licensed broker dealer [2]    
Fee income from the licensed broker dealer [3] [4]  
Impairment loss    
Other operating income [6] [7]  
Total operating income, net  
General and administrative costs:      
Compensation 2,062  
Operating expense, related party  
Professional fees 64 1,206  
Information technology 34  
Clearing and other charges  
General and administrative-other 133  
Total general and administrative costs 64 3,435  
Research and development costs 1,468  
Total operating costs 64 4,903  
Net operating loss (64) (4,903)  
Other income and expense:      
Miscellaneous income  
Interest expense (92)  
Interest income 3  
Gain related to dilution events  
Gain on deconsolidation of subsidiary  
Net income (loss) before income taxes (64) (4,992)  
Income tax expense 2  
Income (loss) before equity method investee (64) (4,994)  
Equity in loss of equity method investee  
Net income (loss) (64) (4,994)  
Less net loss attributable to non-controlling interests (21) (90)  
Net income (loss) attributable to MDB Capital Holdings, LLC (43) (4,904)  
Unrealized (loss) on investment securities, net from the licensed broker dealer [8]    
Other [Member]      
Operating income:      
Unrealized (loss) on investment securities, net from the licensed broker dealer [1]    
Investment securities, at fair value, held by the non-licensed broker dealer (1)    
Realized gain on investment securities, net from the licensed broker dealer [2]    
Fee income from the licensed broker dealer [3] [4]  
Impairment loss    
Other operating income [6] [7]  
Total operating income, net  
General and administrative costs:      
Compensation 12,094 14,769  
Operating expense, related party 362 185  
Professional fees 868 1,086  
Information technology 135 83  
Clearing and other charges  
General and administrative-other 1,497 1,669  
Total general and administrative costs 14,956 17,792  
Research and development costs  
Total operating costs 14,956 17,792  
Net operating loss (14,956) (17,792)  
Other income and expense:      
Miscellaneous income  
Interest expense  
Interest income 1,136 1,510  
Gain related to dilution events 61 130  
Gain on deconsolidation of subsidiary 39,307  
Net income (loss) before income taxes (13,759) 23,155  
Income tax expense  
Income (loss) before equity method investee (13,759) 23,155  
Equity in loss of equity method investee (4,282) (420)  
Net income (loss) (18,041) 22,735  
Less net loss attributable to non-controlling interests  
Net income (loss) attributable to MDB Capital Holdings, LLC (18,041) 22,735  
Unrealized (loss) on investment securities, net from the licensed broker dealer [8]    
Eliminations [Member]      
Operating income:      
Unrealized (loss) on investment securities, net from the licensed broker dealer [1]    
Investment securities, at fair value, held by the non-licensed broker dealer (1)    
Realized gain on investment securities, net from the licensed broker dealer [2]    
Fee income from the licensed broker dealer [3] [4]  
Impairment loss    
Other operating income [6] [7]  
Total operating income, net  
General and administrative costs:      
Compensation  
Operating expense, related party  
Professional fees  
Information technology  
Clearing and other charges  
General and administrative-other  
Total general and administrative costs  
Research and development costs  
Total operating costs  
Net operating loss  
Other income and expense:      
Miscellaneous income  
Interest expense 990 799  
Interest income (990) (799)  
Gain related to dilution events  
Gain on deconsolidation of subsidiary  
Net income (loss) before income taxes  
Income tax expense  
Income (loss) before equity method investee  
Equity in loss of equity method investee  
Net income (loss)  
Less net loss attributable to non-controlling interests  
Net income (loss) attributable to MDB Capital Holdings, LLC  
Unrealized (loss) on investment securities, net from the licensed broker dealer [8]    
[1] Includes unrealized losses on securities held by the broker-dealer and non-broker dealer.
[2] Includes realized gains on securities held by the broker-dealer.
[3] Includes fee income generated for the broker-dealer from investment banking activities, including advisory services, capital raising, and other related financial transactions.
[4] Includes fee income generated for the broker from investment banking activities, including advisory services, capital raising, and other related financial transactions.
[5] Includes impairment loss of assets from the reduced fair value of the asset.
[6] Includes fees earned from self-clearing activities by the broker-dealer and professional fees generated by PatentVest services.
[7] Includes fees earned from self-clearing activities and professional fees generated by PatentVest services.
[8] Includes unrealized gains and losses on securities held by the broker-dealer.