XML 43 R30.htm IDEA: XBRL DOCUMENT v2.4.0.6

Inventories (Tables)

9 Months Ended

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

X

- Details

Name:	us-gaap_InventoryNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_ScheduleOfInventoryCurrentTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration