Consolidated Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Cash flows from operating activities:
Net income	$ 12,853	$ 8,857
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	202	287
Non-voting revenues interest in EAM Trust	(8,389)	(6,060)
Non-voting profits interest in EAM Trust	(995)	(805)
Distributions received from EAM Trust	8,397	6,785
Deferred income taxes	370	377
Deferred rent	78	(67)
Other, net		(45)
Changes in operating assets and liabilities:
Unearned revenue	(1,787)	(1,626)
Accounts payable & accrued expenses	(318)	(403)
Accrued salaries	(164)	(307)
Accrued taxes on income	(182)	1
Prepaid and refundable income taxes	158	231
Prepaid expenses and other current assets	294	95
Accounts receivable	(3,661)	(1,953)
Total adjustments	(5,997)	(3,490)
Net cash provided by operating activities	6,856	5,367
Cash flows from investing activities:
Purchases of equity securities classified as available-for-sale	(1,716)
Purchases of fixed income securities classified as available-for-sale	(6,931)	(5,624)
Proceeds from sales of fixed income securities classified as available-for-sale	5,223	4,638
Acquisition of property and equipment	(2)	(6)
Expenditures for capitalized software		(98)
Net cash used in investing activities	(3,426)	(1,090)
Cash flows from financing activities:
Purchase of treasury stock at cost	(572)	(331)
Dividends paid	(5,796)	(5,523)
Net cash used in financing activities	(6,368)	(5,854)
Net decrease in cash and cash equivalents	(2,938)	(1,577)
Cash, cash equivalents and restricted cash at beginning of period	6,962	6,410
Cash, cash equivalents and restricted cash at end of period	$ 4,024	$ 4,833