CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash Flows From Operating Activities
Net income	$ 5,033,000	$ 2,975,000
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax expense	523,000	479,000
Depreciation and amortization	1,445,000	1,566,000
Net lease liabilities	(51,000)	(136,000)
Loss on sale of OpenHand common stock	63,000
Impairment loss	699,000
Earnings of equity method investment in related party	(172,000)
Changes in
Receivables from customers	10,031,000	(9,027,000)
Receivables from non-customers	(81,000)
Receivables from and deposits with broker-dealers and clearing organizations	9,298,000	(14,549,000)
Securities borrowed	(33,733,000)	(712,256,000)
Securities owned, at fair value	(1,368,000)	395,000
Prepaid expenses and other assets	(51,000)	(2,055,000)
Prepaid service contract	809,000	(686,000)
Payables to customers	(3,854,000)	72,433,000
Payables to non-customers	5,860,000	3,507,000
Drafts payable	(2,217,000)	1,187,000
Payables to broker-dealers and clearing organizations	(1,556,000)	1,287,000
Accounts payable and accrued liabilities	(100,000)	1,334,000
Securities loaned	10,924,000	750,368,000
Securities sold, not yet purchased, at fair value	3,000	(95,000)
Interest payable		(10,000)
Taxes payable	1,292,000
Deferred contract incentive	2,746,000
Net cash provided by operating activities	5,543,000	96,717,000
Cash Flows From Investing Activities
Equity method investment in related party	(64,000)
Purchase of Openhand common stock	(850,000)
Purchase of office facilities and equipment	(296,000)	(13,000)
Purchase of property	(6,815,000)
Purchase of software	(343,000)	(397,000)
Net cash used in investing activities	(8,368,000)	(410,000)
Cash Flows From Financing Activities
Notes payable - related party	1,800,000	(2,800,000)
Long-term debt	3,053,000	4,655,000
Employee stock purchases		800,000
Net cash provided by financing activities	4,853,000	2,655,000
Net increase in cash and cash equivalents, and cash and securities segregated for regulatory purposes	2,028,000	98,962,000
Cash and cash equivalents, and cash and securities segregated for regulatory purposes - beginning of year	328,556,000	229,594,000
Cash and cash equivalents, and cash and securities segregated for regulatory purposes - end of year	330,584,000	328,556,000
Cash and cash equivalents - end of year	3,758,000	3,632,000
Cash and securities segregated for regulatory purposes - end of year	326,826,000	324,924,000
Cash and cash equivalents, and cash and securities segregated for regulatory purposes - end of year	330,584,000	328,556,000
Supplemental cash flow information
Cash paid / (refunds received) during the year for income taxes	(642,000)	167,000
Cash paid during the year for interest	361,000	359,000
Non-cash investing and financing activities
Shares issued for payment of professional services		1,127,000
Equity method investment in related party	$ 7,920,000