Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive (Loss)/Income	Treasury Stock
Balance at Apr. 30, 2024	$ 399,914	$ 75	$ 289,994	$ 542,414	$ 73	$ (432,642)
Balance (in shares) at Apr. 30, 2024		75,395,000
Treasury stock (in shares) at Apr. 30, 2024						29,834,000
Stock-based compensation	3,722		3,722
Shares issued under employee stock purchase plan	749		749
Shares issued under employee stock purchase plan (in shares)		68,000
Issuance of common stock under restricted stock unit awards, net of shares surrendered	(1,102)	$ 1	(1,103)
Issuance of common stock under restricted stock unit awards, net of shares surrendered (in shares)		215,000
Repurchase of treasury stock, including excise tax	(22,804)					$ (22,804)
Repurchase of treasury stock, including excise tax, shares						1,624,000
Dividends issued	(11,688)			(11,688)
Net income	2,691			2,691
Balance at Oct. 31, 2024	371,482	$ 76	293,362	533,417	73	$ (455,446)
Balance (in shares) at Oct. 31, 2024		75,678,000
Treasury stock (in shares) at Oct. 31, 2024						31,458,000
Balance at Jul. 31, 2024	379,991	$ 76	290,790	534,652	73	$ (445,600)
Balance (in shares) at Jul. 31, 2024		75,552,000
Treasury stock (in shares) at Jul. 31, 2024						30,705,000
Stock-based compensation	1,869		1,869
Shares issued under employee stock purchase plan	749		749
Shares issued under employee stock purchase plan (in shares)		68,000
Issuance of common stock under restricted stock unit awards, net of shares surrendered	(46)		(46)
Issuance of common stock under restricted stock unit awards, net of shares surrendered (in shares)		58,000
Repurchase of treasury stock, including excise tax	(9,846)					$ (9,846)
Repurchase of treasury stock, including excise tax, shares						753,000
Dividends issued	(5,781)			(5,781)
Net income	4,546			4,546
Balance at Oct. 31, 2024	371,482	$ 76	293,362	533,417	$ 73	$ (455,446)
Balance (in shares) at Oct. 31, 2024		75,678,000
Treasury stock (in shares) at Oct. 31, 2024						31,458,000
Balance at Apr. 30, 2025	$ 372,454	$ 76	298,075	532,615		$ (458,312)
Balance (in shares) at Apr. 30, 2025	44,111,461	75,789,000
Treasury stock (in shares) at Apr. 30, 2025	31,677,994					31,678,000
Stock-based compensation	$ 3,990		3,990
Shares issued under employee stock purchase plan	743		743
Shares issued under employee stock purchase plan (in shares)		94,000
Issuance of common stock under restricted stock unit awards, net of shares surrendered	(875)		(875)
Issuance of common stock under restricted stock unit awards, net of shares surrendered (in shares)		286,000
Repurchase of treasury stock, including excise tax	37					$ 37
Dividends issued	(11,659)			(11,659)
Net income	(1,494)			(1,494)
Balance at Oct. 31, 2025	$ 363,196	$ 76	301,933	519,462		$ (458,275)
Balance (in shares) at Oct. 31, 2025	44,490,896	76,169,000
Treasury stock (in shares) at Oct. 31, 2025	31,677,994					31,678,000
Balance at Jul. 31, 2025	$ 364,379	$ 76	299,175	523,420		$ (458,292)
Balance (in shares) at Jul. 31, 2025		75,988,000
Treasury stock (in shares) at Jul. 31, 2025						31,678,000
Stock-based compensation	2,099		2,099
Shares issued under employee stock purchase plan	743		743
Shares issued under employee stock purchase plan (in shares)		94,000
Issuance of common stock under restricted stock unit awards, net of shares surrendered	(84)		(84)
Issuance of common stock under restricted stock unit awards, net of shares surrendered (in shares)		87,000
Repurchase of treasury stock, including excise tax	17					$ 17
Dividends issued	(5,875)			(5,875)
Net income	1,917			1,917
Balance at Oct. 31, 2025	$ 363,196	$ 76	$ 301,933	$ 519,462		$ (458,275)
Balance (in shares) at Oct. 31, 2025	44,490,896	76,169,000
Treasury stock (in shares) at Oct. 31, 2025	31,677,994					31,678,000