Consolidated Condensed Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Cash flows from operating activities:
Net income	$ 14,232,000	$ 14,036,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,054,000	1,006,000
Investment (gains)/losses	133,000	(438,000)
Non-voting revenues interest in EAM Trust	(8,420,000)	(7,917,000)
Non-voting profits interest in EAM Trust	(921,000)	(599,000)
Distributions received from EAM Trust	8,476,000	9,660,000
Deferred income taxes	(189,000)	57,000
Deferred rent	(997,000)	(920,000)
Changes in operating assets and liabilities:
Unearned revenue	(476,000)	(1,010,000)
Accounts payable & accrued expenses	(169,000)	(195,000)
Accrued salaries	(41,000)	(20,000)
Accrued taxes on income	(126,000)	80,000
Prepaid and refundable income taxes	419,000	278,000
Prepaid expenses and other current assets	373,000	62,000
Accounts receivable	822,000	(102,000)
Total adjustments	(63,000)	(58,000)
Net cash provided by operating activities	14,169,000	13,978,000
Cash flows from investing activities:
Purchases of equity securities	(2,073,000)	(1,322,000)
Purchases of fixed income securities classified as available-for-sale	(38,855,000)	(30,205,000)
Proceeds from sales of equity securities	1,129,000	1,421,000
Proceeds from sales of fixed income securities classified as available-for-sale	32,113,000	9,907,000
Acquisition of property and equipment	(14,000)	(23,000)
Expenditures for capitalized software	(19,000)	0
Net cash used in investing activities	(7,719,000)	(20,222,000)
Cash flows from financing activities:
Purchase of treasury stock at cost	(338,000)	(4,487,000)
Dividends paid	(7,922,000)	(7,111,000)
Net cash used in financing activities	(8,260,000)	(11,598,000)
Net change in cash and cash equivalents	(1,810,000)	(17,842,000)
Cash, cash equivalents and restricted cash at beginning of period	7,895,000	30,008,000
Cash, cash equivalents and restricted cash at end of period	$ 6,085,000	$ 12,166,000