CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Deficit	Treasury Stock
Balance at Apr. 30, 2023	$ 191,864	$ 14	$ 272,784	$ (62,375)	$ (18,559)
Balance, shares at Apr. 30, 2023		14,447,000			1,214,000
Net Income (Loss)	(4,036)			(4,036)
Stock-based compensation	1,938		1,938
Shares issued under employee stock purchase plan	339		339
Shares issued under employee stock purchase plan, shares		47,000
Issuance of common stock under restricted stock unit awards, net of tax	(352)	$ 1	(353)
Issuance of common stock under restricted stock unit awards, net of tax, shares		112,000
Repurchase of treasury stock	(3,762)				$ (3,762)
Repurchase of treasury stock, shares					426,000
Balance at Oct. 31, 2023	185,991	$ 15	274,708	(66,411)	$ (22,321)
Balance, shares at Oct. 31, 2023		14,606,000			1,640,000
Balance at Jul. 31, 2023	186,115	$ 15	273,415	(66,488)	$ (20,827)
Balance, shares at Jul. 31, 2023		14,543,000			1,482,000
Net Income (Loss)	77			77
Stock-based compensation	1,005		1,005
Shares issued under employee stock purchase plan	339		339
Shares issued under employee stock purchase plan, shares		47,000
Issuance of common stock under restricted stock unit awards, net of tax	(51)		(51)
Issuance of common stock under restricted stock unit awards, net of tax, shares		16,000
Repurchase of treasury stock	(1,494)				$ (1,494)
Repurchase of treasury stock, shares					158,000
Balance at Oct. 31, 2023	185,991	$ 15	274,708	(66,411)	$ (22,321)
Balance, shares at Oct. 31, 2023		14,606,000			1,640,000
Balance at Apr. 30, 2024	$ 177,925	$ 15	277,107	(74,623)	$ (24,574)
Balance, shares at Apr. 30, 2024	12,797,865	14,701,000			1,903,000
Net Income (Loss)	$ 746			746
Stock-based compensation	1,798		1,798
Shares issued under employee stock purchase plan	286		286
Shares issued under employee stock purchase plan, shares		39,000
Issuance of common stock under restricted stock unit awards, net of tax	(514)		(514)
Issuance of common stock under restricted stock unit awards, net of tax, shares		150,000
Repurchase of treasury stock	(1,387)				$ (1,387)
Repurchase of treasury stock, shares					154,000
Balance at Oct. 31, 2024	$ 178,854	$ 15	278,677	(73,877)	$ (25,961)
Balance, shares at Oct. 31, 2024	12,832,682	14,890,000			2,057,000
Balance at Jul. 31, 2024	$ 175,714	$ 15	277,642	(76,988)	$ (24,955)
Balance, shares at Jul. 31, 2024		14,820,000			1,945,000
Net Income (Loss)	3,111			3,111
Stock-based compensation	866		866
Shares issued under employee stock purchase plan	286		286
Shares issued under employee stock purchase plan, shares		39,000
Issuance of common stock under restricted stock unit awards, net of tax	(117)		(117)
Issuance of common stock under restricted stock unit awards, net of tax, shares		31,000
Repurchase of treasury stock	(1,006)				$ (1,006)
Repurchase of treasury stock, shares					112,000
Balance at Oct. 31, 2024	$ 178,854	$ 15	$ 278,677	$ (73,877)	$ (25,961)
Balance, shares at Oct. 31, 2024	12,832,682	14,890,000			2,057,000