Consolidated Statements of Stockholders' Equity - USD ($)	Total	Common Stock	Additional Paid-in Capital	Retained Earnings (Deficit)	Treasury Stock
Beginning balance (in shares) at Jul. 31, 2022	100,000
Beginning balance at Jul. 31, 2022	$ 105,204,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Convertible preferred stock issuance costs	0
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	$ 7,007,000
Ending balance (in shares) at Jul. 31, 2023	100,000
Ending balance at Jul. 31, 2023	$ 112,211,000
Beginning balance (in shares) at Jul. 31, 2022		42,672,827
Beginning balance (in shares) at Jul. 31, 2022					15,033,317
Beginning balance at Jul. 31, 2022	466,585,000	$ 4,267,000	$ 625,484,000	$ 278,683,000	$ (441,849,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-classified stock award compensation	10,257,000		10,257,000
CEO transition costs related to equity-classified stock-based awards (See Note 12)	3,764,000		3,764,000
Proceeds from issuance of employee stock purchase plan shares (in shares)		54,617
Issuance of employee stock purchase plan shares	434,000	$ 5,000	429,000
Issuance of restricted stock, net of forfeiture (in shares)		93,091
Issuance of restricted stock, net of forfeiture	0	$ 9,000	(9,000)
Net settlement of stock-based awards (in shares)		275,736
Net settlement of stock-based awards	(2,971,000)	$ 29,000	(3,000,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	(7,007,000)			(7,007,000)
Cash dividends declared, net	(5,549,000)			(5,549,000)
Reversal of dividend equivalents	315,000			315,000
Net loss	(26,899,000)			(26,899,000)
Ending balance (in shares) at Jul. 31, 2023		43,096,271
Ending balance (in shares) at Jul. 31, 2023					15,033,317
Ending balance at Jul. 31, 2023	$ 438,299,000	$ 4,310,000	636,925,000	238,913,000	$ (441,849,000)
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of convertible preferred stock (in shares)	171,827
Temporary equity, stock issued during period, value, new issues	$ 172,035,000
Convertible preferred stock issuance costs	$ (4,349,000)
Extinguishment of convertible preferred stock (in shares)	(100,000)
Extinguishment of convertible preferred stock	$ (115,721,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	$ 15,900,000
Ending balance (in shares) at Jul. 31, 2024	171,827
Ending balance at Jul. 31, 2024	$ 180,076,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-classified stock award compensation	6,096,000		6,096,000
Proceeds from issuance of employee stock purchase plan shares (in shares)		52,604
Issuance of employee stock purchase plan shares	254,000	$ 5,000	249,000
Issuance of restricted stock, net of forfeiture (in shares)		(2,686)
Net settlement of stock-based awards (in shares)		619,920
Net settlement of stock-based awards	(3,063,000)	$ 62,000	(3,125,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	(15,900,000)			(15,900,000)
Extinguishment of convertible preferred stock	(19,555,000)			(19,555,000)
Reversal of dividend equivalents	107,000			107,000
Net loss	$ (99,985,000)
Ending balance (in shares) at Jul. 31, 2024	43,766,109	43,766,109
Ending balance (in shares) at Jul. 31, 2024	15,033,317				15,033,317
Ending balance at Jul. 31, 2024	$ 306,253,000	$ 4,377,000	640,145,000	103,580,000	$ (441,849,000)
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of convertible preferred stock (in shares)	178,181
Temporary equity, stock issued during period, value, new issues	$ 96,700,000
Convertible preferred stock issuance costs	$ 0
Extinguishment of convertible preferred stock (in shares)	(171,827)
Extinguishment of convertible preferred stock	$ (183,489,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	$ 96,258,000
Ending balance (in shares) at Jul. 31, 2025	178,181
Ending balance at Jul. 31, 2025	$ 189,545,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-classified stock award compensation	3,120,000		3,120,000
Proceeds from issuance of employee stock purchase plan shares (in shares)		53,801
Issuance of employee stock purchase plan shares	118,000	$ 5,000	113,000
Issuance of restricted stock, net of forfeiture (in shares)		63,450
Issuance of restricted stock, net of forfeiture	0	$ 6,000	(6,000)
Net settlement of stock-based awards (in shares)		560,266
Net settlement of stock-based awards	(859,000)	$ 56,000	(915,000)
Extinguishment of convertible preferred stock	51,179,000			51,179,000
Issuance of convertible preferred stock (at fair value), excluding embedded derivatives	(3,221,000)		(3,221,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	(96,258,000)		(89,879,000)	(6,379,000)
Reversal of dividend equivalents	42,000		15,000	27,000
Convertible preferred stock amendment fees	(650,000)		(650,000)
Net loss	$ (155,302,000)
Ending balance (in shares) at Jul. 31, 2025	44,443,626	44,443,626
Ending balance (in shares) at Jul. 31, 2025	15,033,317				15,033,317
Ending balance at Jul. 31, 2025	$ 104,422,000	$ 4,444,000	$ 548,722,000	$ (6,895,000)	$ (441,849,000)