Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Cash flows from operating activities:
Net earnings	$ 4,929	$ 10,785
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	5,671	4,305
Stock-based compensation expense	1,308	1,108
Net loss (gain) on investments	393	(1,378)
Deferred income taxes	(166)	208
Changes in operating assets and liabilities:
Purchases of trading securities	(7,427)	(20,010)
Proceeds from maturities and sales of trading securities	12,944	11,656
Accounts receivable, net	(831)	(2,926)
Prepaid expenses and other assets	724	(1,494)
Accounts payable and other liabilities	(4,031)	(999)
Deferred revenue	94	4,096
Net cash provided by operating activities	13,608	5,351
Cash flows from investing activities:
Capitalized computer software development costs	(4,162)	(3,652)
Purchases of property and equipment, net of disposals	(1,014)	(413)
Purchases of business, net of cash acquired	0	(9,253)
Net cash used in investing activities	(5,176)	(13,318)
Cash flows from financing activities:
Proceeds from exercise of stock options	4,004	6,719
Dividends paid	(10,172)	(9,841)
Net cash used in financing activities	(6,168)	(3,122)
Net change in cash and cash equivalents	2,264	(11,089)
Cash and cash equivalents at beginning of period	52,794	66,001
Cash and cash equivalents at end of period	55,058	54,912
Income taxes, net of refunds	$ 505	$ 6,764