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Inventories (Details) - USD ($)	Apr. 30, 2024	Jul. 31, 2023
Inventory Disclosure [Abstract]
Raw materials and components	$ 73,811,000	$ 87,139,000
Work-in-process and finished goods	40,801,000	43,365,000
Total inventories	114,612,000	130,504,000
Less reserve for excess and obsolete inventories	18,492,000	24,659,000
Inventories, net	96,120,000	105,845,000
Inventory directly related to long-term contracts	4,310,000	5,911,000
Inventory related to contracts from third party commercial customers who outsource their manufacturing to us	$ 2,386,000	$ 3,277,000

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Net carrying amount of Inventory directly related to long-term contracts.

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Net carrying amount as of the balance sheet date of inventories related to contracts from third-party commercial customers who outsource their manufacturing to the Company.

+ References

No definition available.

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- Definition

Amount before valuation reserves of merchandise or goods held by the entity that are readily available for sale and items held by the entity which are partially complete or in the process of being readied for sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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-Topic 852
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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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