Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024	Jul. 31, 2024	Jul. 31, 2023
Cash flows from operating activities:
Net loss	$ 33,934,000	$ 2,795,000	$ (163,212,000)	$ (9,200,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization of property, plant and equipment	2,726,000		8,400,000	9,073,000
Amortization of intangible assets with finite lives	5,044,000	5,289,000	16,680,000	15,866,000
Amortization of stock-based compensation			2,520,000	5,238,000
Amortization of cost to fulfill assets	0		261,000	720,000
Paid-in-kind interest under term loan			5,528,000	0
Amortization of deferred financing costs, debt discount and accreted interest related to Amended Subordinated Credit Facility			4,451,000	0
Amortization of deferred financing costs and debt discount related to Credit Facility			3,496,000	2,694,000
Write-off of deferred financing costs and debt discounts	3,479,000	0	4,891,000	0
Change in fair value of warrants and derivatives	(49,542,000)	(6,439,000)	(15,450,000)	(6,439,000)
Loss (gain) on business divestiture, net	0	200,000	0	(2,013,000)	$ 1,199,000
Changes in other liabilities			0	(3,100,000)
Loss on disposal of property, plant and equipment			310,000	17,000
Provision for allowance for doubtful accounts and contract assets			17,716,000	1,134,000
Provision for excess and obsolete inventory			14,485,000	2,243,000
Deferred income tax benefit			(584,000)	(1,013,000)
Impairment of long-lived assets, including goodwill	0	0	79,555,000	0
Changes in assets and liabilities, net of effects of divestiture:
Accounts receivable			26,407,000	(42,068,000)
Inventories			960,000	(10,189,000)
Prepaid expenses and other current assets			(552,000)	1,596,000
Other assets			(1,609,000)	1,159,000
Accounts payable			(13,930,000)	(7,316,000)
Accrued expenses and other current liabilities			(5,243,000)	2,117,000
Contract liabilities			(2,297,000)	(3,305,000)
Other liabilities, non-current			34,000	41,000
Interest payable			(1,067,000)	(112,000)
Income taxes payable			(1,489,000)	(2,141,000)
Net cash used in operating activities			(19,739,000)	(44,998,000)	(54,495,000)	$ (4,433,000)
Cash flows from investing activities:
Proceeds from business divestiture, net			0	33,225,000
Purchases of property, plant and equipment			(6,529,000)	(8,904,000)
Net cash (used in) provided by investing activities			(6,529,000)	24,321,000
Cash flows from financing activities:
Proceeds from subordinated credit facility			65,000,000	0
Proceeds from issuance of convertible preferred stock			0	43,200,000
Net (payments) borrowings under revolving loan			(9,084,000)	17,554,000
Repayment of term loan			(27,252,000)	(20,613,000)
Proceeds from issuance of employee stock purchase plan shares			101,000	219,000
Payment of deferred financing costs and debt discount			(4,220,000)	(3,180,000)
Remittance of employees’ statutory tax withholding for stock awards			(1,186,000)	(3,810,000)
Payment of shelf registration costs			207,000	0
Cash dividends paid on common stock			(157,000)	(267,000)
Payment of convertible preferred stock amendment fees			(650,000)	0
Net cash provided by financing activities			22,269,000	28,908,000
Net (decrease) increase in cash and cash equivalents			(3,999,000)	8,231,000
Cash and cash equivalents at beginning of period			32,433,000	18,961,000	18,961,000
Cash and cash equivalents at end of period	$ 28,434,000	$ 27,192,000	28,434,000	27,192,000	$ 32,433,000	$ 18,961,000
Cash paid during the period for:
Interest			21,019,000	12,743,000
Income taxes, net			1,396,000	3,794,000
Non-cash investing and financing activities:
Adjustment to reflect redemption value of convertible preferred stock			76,785,000	11,992,000
Term loan amendment fee paid-in-kind			4,654,000	0
Accrued term loan amendment fee			2,809,000	0
Accrued additions to property, plant and equipment			263,000	1,630,000
Accrued shelf registration costs			10,000	20,000
Accrued deferred financing costs			6,000	1,479,000
Issuance of restricted stock			6,000	0
Accrued remittance of employees' statutory tax withholdings			1,000	4,000
Cash dividends declared on common stock but unpaid, including (reversal) of dividend equivalents			(33,000)	(104,000)
Unpaid convertible preferred stock issuance costs			0	154,000
Convertible Preferred Stock
Cash flows from financing activities:
Payment of convertible preferred stock issuance costs			$ (76,000)	$ (4,195,000)