Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Jul. 31, 2023	Jul. 31, 2022
Revenue:
Revenues		$ 29,168	$ 31,296
Cost of revenue:
Cost of revenues		11,592	12,584
Gross margin		17,576	18,712
Research and development		4,249	4,454
Sales and marketing		6,148	5,912
General and administrative		5,587	5,765
Amortization of acquisition-related intangibles		25	24
Total operating expenses		16,009	16,155
Operating income		1,567	2,557
Other income (loss):
Interest income		1,089	209
Other, net		798	(90)
Earnings before income taxes		3,454	2,676
Income tax expense		706	543
Net earnings		$ 2,748	$ 2,133
Earnings per common share
Basic (in usd per share)	[1]	$ 0.08	$ 0.06
Cash dividends declared per common share (in usd per share)		$ 0.11	$ 0.11
Shares used in the calculation of earnings per common share:
Basic (in shares)		34,155	33,656
Diluted (in shares)		34,160	34,007
Class A Common Shares
Earnings per common share
Basic (in usd per share)		$ 0.08	$ 0.06
Diluted (in usd per share)	[1]	$ 0.08	$ 0.06
Shares used in the calculation of earnings per common share:
Basic (in shares)		32,333	31,834
Diluted (in shares)		34,160	34,007
Class B Common Shares
Earnings per common share
Basic (in usd per share)		$ 0.08	$ 0.06
Diluted (in usd per share)		$ 0.08	$ 0.06
Shares used in the calculation of earnings per common share:
Basic (in shares)		1,822	1,822
Diluted (in shares)		1,822	1,822
Subscription fees
Revenue:
Revenues		$ 13,764	$ 12,062
Cost of revenue:
Cost of revenues		4,217	3,618
License
Revenue:
Revenues		289	320
Cost of revenue:
Cost of revenues		72	89
Professional services and other
Revenue:
Revenues		6,952	10,009
Cost of revenue:
Cost of revenues		5,608	7,304
Maintenance
Revenue:
Revenues		8,163	8,905
Cost of revenue:
Cost of revenues		$ 1,695	$ 1,573

[1] Basic per share amounts are the same for Class A and Class B shares. Diluted per share amounts for Class A shares are shown above. Diluted earnings per share for Class B shares under the two-class method are $0.08 and $0.06 for the three months ended July 31, 2023 and 2022, respectively. See Note D to the Condensed Consolidated Financial Statements.