CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash Flows From Operating Activities
Net income	$ 3,704,000	$ 1,475,000
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax expense	273,000	233,000
Depreciation and amortization	766,000	825,000
Changes in
Receivables from customers	10,508,000	5,953,000
Receivables from and deposits with broker-dealers and clearing organizations	3,906,000	(856,000)
Securities borrowed	267,616,000	26,277,000
Securities owned, at fair value	(1,652,000)	644,000
Prepaid expenses and other assets	205,000	58,000
Prepaid service contract	454,000	(972,000)
Payables to customers	11,350,000	6,007,000
Payables to non-customers	495,000	(344,000)
Drafts payable	(2,747,000)	(859,000)
Payables to broker-dealers and clearing organizations	5,024,000	3,059,000
Accounts payable and accrued liabilities	147,000	157,000
Securities loaned	(277,166,000)	(10,996,000)
Securities sold, not yet purchased, at fair value	28,000	(99,000)
Interest payable		20,000
Lease liabilities	(14,000)	(77,000)
Taxes payable	1,270,000	39,000
Net cash provided by operating activities	24,167,000	30,544,000
Cash Flows From Investing Activities
Purchase of OpenHand common stock	(850,000)
Purchase of furniture, equipment, and leasehold improvements	(198,000)
Purchase of software	(156,000)	(276,000)
Net cash used in investing activities	(1,204,000)	(276,000)
Cash Flows From Financing Activities
Repayments of long-term debt	(498,000)
Net cash used in financing activities	(498,000)
Net change in cash and cash equivalents, and cash and securities segregated for regulatory purposes	22,465,000	30,268,000
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 period	351,021,000	259,862,000
Cash and cash equivalents - end of period	2,332,000	4,179,000
Cash and securities segregated for regulatory purposes - end of period	348,689,000	255,683,000
Cash and cash equivalents, and cash and securities segregated for regulatory purposes - end of period	351,021,000	259,862,000
Supplemental cash flow information
Cash paid during the period for income taxes	97,000	130,000
Cash paid during the period for interest	192,000	150,000
Non-cash investing and financing activities
Shares issued for OpenHand purchase	1,381,000
Shares issued for payment of professional services		$ 1,127,000