Consolidated Condensed Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
Cash flows from operating activities:
Net income	$ 14,401,000	$ 10,193,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	669,000	638,000
Investment (gains)/losses	(356,000)	(952,000)
Non-voting revenues interest in EAM Trust	(8,412,000)	(7,009,000)
Non-voting profits interest in EAM Trust	(1,285,000)	(849,000)
Distributions received from EAM Trust	9,616,000	6,672,000
Gain on forgiveness of PPP loan (see note 16)	(2,331,000)	0
Deferred income taxes	(225,000)	26,000
Deferred rent obligation	(511,000)	(470,000)
Changes in operating assets and liabilities:
Unearned revenue	(2,488,000)	(1,949,000)
Accounts payable & accrued expenses	(1,080,000)	(304,000)
Accrued salaries	(17,000)	(127,000)
Accrued taxes on income	534,000	(1,151,000)
Prepaid and refundable income taxes	251,000	0
Prepaid expenses and other current assets	104,000	112,000
Accounts receivable	2,390,000	2,838,000
Total adjustments	(3,141,000)	(2,525,000)
Net cash provided by operating activities	11,260,000	7,668,000
Cash flows from investing activities:
Purchases of equity securities	(3,434,000)	(7,636,000)
Purchases of fixed income securities classified as available for sale	(498,000)	(2,496,000)
Proceeds from sales of equity securities	687,000	5,529,000
Proceeds from sales of fixed income securities classified as available for sale	2,496,000	5,214,000
Acquisition of property and equipment	0	(21,000)
Expenditures for capitalized software	0	(82,000)
Net cash provided by/(used in) investing activities	(749,000)	508,000
Cash flows from financing activities:
Purchase of treasury stock at cost	(517,000)	(422,000)
Receivable from clearing broker	0	608,000
Payable to clearing broker	0	(588,000)
Dividends paid	(4,207,000)	(4,039,000)
Net cash used in financing activities	(4,724,000)	(4,441,000)
Net change in cash and cash equivalents	5,787,000	3,735,000
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	$ 25,427,000	$ 9,158,000