Revenue Recognition - Schedule of Company’s Recognition of Revenue from Contracts (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	$ 12,377,000	$ 11,811,000	$ 23,747,000	$ 22,252,000
Total Revenue Outside the Scope of Topic 606	2,497,000	9,052,000	20,046,000	19,067,000
Total Revenue	14,874,000	20,863,000	43,793,000	41,319,000
Riskless principal transactions with customers [Member] \| Principal transactions and proprietary trading [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	2,453,000	3,285,000	6,161,000	6,720,000
Investment banking and advisory fees [Member] \| Principal transactions and proprietary trading [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	206,000		206,000
Brokerage Commissions [Member] \| Commissions and fees [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	1,515,000	1,950,000	3,058,000	3,842,000
Distribution fees [Member] \| Commissions and fees [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	343,000	379,000	701,000	705,000
Insurance commissions [Member] \| Commissions and fees [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	156,000	274,000	357,000	356,000
Retail fees (rebates) [Member] \| Stock borrow / stock loan [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	4,000	(3,000)	10,000	(12,000)
Stock locate services [Member] \| Stock borrow / stock loan [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	5,957,000	4,208,000	9,989,000	7,806,000
Administrative fees [Member] \| Other Income [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	426,000	823,000	857,000	1,164,000
Payment for order flow [Member] \| Other Income [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	413,000	317,000	756,000	612,000
Other commissions [Member] \| Other Income [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers		27,000		18,000
Recorded Music Revenue [Member] \| Other Income [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	113,000		113,000
Advisory fees [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenues from contracts with customers	791,000	551,000	1,539,000	1,041,000
Proprietary trading [Member] \| Principal transactions and proprietary trading [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenue Outside the Scope of Topic 606	373,000	289,000	393,000	360,000
Principal transactions - equity investment [Member] \| Principal transactions and proprietary trading [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenue Outside the Scope of Topic 606	(6,803,000)		2,430,000
Margin interest [Member] \| Interest, marketing and distribution fees [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenue Outside the Scope of Topic 606	3,513,000	3,831,000	6,908,000	7,807,000
Interest income [Member] \| Interest, marketing and distribution fees [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenue Outside the Scope of Topic 606	2,838,000	3,498,000	5,888,000	7,779,000
Marking and distribution fees [Member] \| Interest, marketing and distribution fees [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenue Outside the Scope of Topic 606	518,000	506,000	1,018,000	1,012,000
Stock rebate revenue [Member] \| Stock borrow / stock loan [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenue Outside the Scope of Topic 606	1,561,000	491,000	2,360,000	1,000,000
Market Making [Member]
Schedule of Company’s Recognition of Revenue from Contracts [Line Items]
Total Revenue Outside the Scope of Topic 606	$ 497,000	$ 437,000	$ 1,049,000	$ 1,109,000