Consolidated Condensed Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended		6 Months Ended		9 Months Ended		15 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022
Cash flows from operating activities:
Net income	$ 5,614,000	$ 7,035,000	$ 20,015,000	$ 17,228,000	$ 20,015,000	$ 17,228,000	$ 5,614,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization			1,003,000	963,000
Investment (gains)/losses			(122,000)	(2,550,000)
Non-voting revenues interest in EAM Trust	(4,120,000)	(4,104,000)	(12,532,000)	(11,113,000)	(12,532,000)	(11,113,000)
Non-voting profits interest in EAM Trust	(535,000)	(630,000)	(1,820,000)	(1,479,000)	(1,820,000)	(1,479,000)
Distributions received from EAM Trust			14,447,000	10,838,000
Gain on forgiveness of PPP loan (see note 16)	0	0	(2,331,000)	0	(2,331,000)	0
Deferred income taxes	(221,000)	134,000	(446,000)	160,000	(446,000)	160,000
Deferred rent obligation			(792,000)	(713,000)
Changes in operating assets and liabilities:
Unearned revenue			(1,940,000)	(1,287,000)
Accounts payable & accrued expenses			(778,000)	(164,000)
Accrued salaries			(55,000)	(201,000)
Accrued taxes on income			2,387,000	(1,352,000)
Prepaid and refundable income taxes			153,000	0
Prepaid expenses and other current assets			255,000	110,000
Accounts receivable			2,183,000	(85,000)
Total adjustments			(388,000)	(6,873,000)
Net cash provided by operating activities			19,627,000	10,355,000
Cash flows from investing activities:
Purchases of equity securities			(4,814,000)	(8,524,000)
Purchases of fixed income securities classified as available for sale			(498,000)	(2,497,000)
Proceeds from sales of equity securities			1,202,000	7,684,000	1,202,000	7,684,000
Proceeds from sales of fixed income securities classified as available for sale			2,496,000	11,431,000
Acquisition of property and equipment			0	(26,000)
Expenditures for capitalized software			0	(114,000)
Net cash provided by/(used in) investing activities			(1,614,000)	7,954,000
Cash flows from financing activities:
Purchase of treasury stock at cost			(1,322,000)	(1,045,000)
Receivable from clearing broker			0	608,000
Payable to clearing broker			190,000	(588,000)
Dividends paid			(6,307,000)	(6,056,000)
Net cash used in financing activities			(7,439,000)	(7,081,000)
Net change in cash and cash equivalents			10,574,000	11,228,000
Cash, cash equivalents and restricted cash at beginning of period			19,640,000	5,423,000
Cash, cash equivalents and restricted cash at end of period	$ 30,214,000	$ 16,651,000	$ 30,214,000	$ 16,651,000	$ 30,214,000	$ 16,651,000	$ 30,214,000