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Inventories (Tables) | 9 Months Ended
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Apr. 30, 2012
Inventories [Abstract] |
Inventories |
| ##### April 30, 2012 |  | July 31, 2011
Raw materials and components | $ 58,217,000 |  | 53,678,000
Work-in-process and finished goods | 33,874,000 |  | 34,299,000
Total inventories | 92,091,000 |  | 87,977,000
Less reserve for excess and obsolete inventories | 15,427,000 |  | 13,316,000
Inventories, net | $ 76,664,000 |  | 74,661,000

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- Definition Tabular disclosure of the carrying 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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