Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Jul. 31, 2022	Jul. 31, 2021
Revenue:
Revenues		$ 31,296	$ 29,271
Cost of revenue:
Cost of revenues		12,584	12,367
Gross margin		18,712	16,904
Research and development		4,454	4,424
Sales and marketing		5,912	6,120
General and administrative		5,765	4,534
Amortization of acquisition-related intangibles		24	53
Total operating expenses		16,155	15,131
Operating income		2,557	1,773
Other income\(loss):
Interest income		209	93
Other, net		(90)	344
Earnings before income taxes		2,676	2,210
Income tax expense\(benefit)		543	(737)
Net earnings		$ 2,133	$ 2,947
Earnings per common share
Basic (in usd per share)	[1]	$ 0.06	$ 0.09
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)		33,656	33,053
Diluted (in shares)		34,007	33,946
Class A Common Shares
Earnings per common share
Basic (in usd per share)		$ 0.06	$ 0.09
Diluted (in usd per share)	[1]	$ 0.06	$ 0.09
Shares used in the calculation of earnings per common share:
Basic (in shares)		31,834	31,231
Diluted (in shares)		34,007	33,946
Class B Common Shares
Earnings per common share
Basic (in usd per share)		$ 0.06	$ 0.09
Diluted (in usd per share)		$ 0.06	$ 0.09
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		$ 12,062	$ 9,788
Cost of revenue:
Cost of revenues		3,618	3,224
License
Revenue:
Revenues		320	492
Cost of revenue:
Cost of revenues		89	159
Professional services and other
Revenue:
Revenues		10,009	9,529
Cost of revenue:
Cost of revenues		7,304	7,010
Maintenance
Revenue:
Revenues		8,905	9,462
Cost of revenue:
Cost of revenues		$ 1,573	$ 1,974

[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 $0.06 and $0.09 for the three months ended July 31, 2022 and 2021. See Note D to the Condensed Consolidated Financial Statements.