CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash Flows From Operating Activities
Net income	$ 2,975,000	$ 3,236,000	[1]
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax expense	479,000	490,000
Depreciation and amortization	1,566,000	1,002,000	[1]
Changes in
Receivables from customers	(9,027,000)	(6,424,000)
Receivables from and deposits with broker-dealers and clearing organizations	(14,549,000)	383,000
Securities borrowed	(712,256,000)	104,438,000
Securities owned, at fair value	395,000	2,717,000
Prepaid expenses and other assets	(2,055,000)	271,000
Prepaid service contract	(686,000)
Payables to customers	72,433,000	30,308,000
Payables to non-customers	3,507,000	(7,179,000)
Drafts payable	1,187,000	289,000
Payables to broker-dealers and clearing organizations	1,287,000	585,000
Accounts payable and accrued liabilities	1,334,000	(505,000)
Securities loaned	750,368,000	(105,796,000)
Securities sold, not yet purchased, at fair value	(95,000)	69,000
Interest payable	(10,000)	10,000
Lease liabilities	(136,000)	458,000
Net cash provided by operating activities	96,717,000	24,352,000
Cash Flows From Investing Activities
Segregated cash acquired in a business acquisition		152,000
Cash paid in a business acquisition, net of cash and cash equivalents acquired		(3,824,000)
Purchase of furniture, equipment, and leasehold improvements	(13,000)	(1,010,000)
Purchase of software	(397,000)	(1,262,000)
Net cash used in investing activities	(410,000)	(5,944,000)
Cash Flows From Financing Activities
Notes payable - related party	(2,800,000)	2,000,000
Long-term debt	4,655,000
Employee stock purchases	800,000
Purchase of StockCross common stock		(3,424,000)
Return of capital distribution - StockCross		(1,600,000)
Treasury stock sales - StockCross		172,000
Net cash provided by / (used in) financing activities	2,655,000	(2,852,000)
Net increase / (decrease) in cash and cash equivalents, and cash and securities segregated for regulatory purposes	98,962,000	15,556,000
Cash and cash equivalents, and cash and securities segregated for regulatory purposes - beginning of year	229,594,000	214,038,000
Cash and cash equivalents, and cash and securities segregated for regulatory purposes - end of year	328,556,000	229,594,000
Cash and cash equivalents - end of year	3,632,000	4,670,000	[2]
Cash and securities segregated for regulatory purposes - end of year	324,924,000	224,924,000	[2]
Cash and cash equivalents, and cash and securities segregated for regulatory purposes - end of year	328,556,000	229,594,000
Supplemental cash flow information
Cash paid during the year for income taxes	167,000	636,000
Cash paid during the year for interest	359,000	125,000
Non-cash investing and financing activities
Shares issued for payment of professional services	$ 1,127,000

[1] Statement of income for the year ended December 31, 2019 represents the pro forma combination of Siebert and StockCross balances. See "Note 3 - Acquisitions" for additional detail.

[2] Statement of financial condition as of December 31, 2019 represents the pro forma combination of Siebert and StockCross balances. See "Note 3 - Acquisitions" for additional detail.