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Summary Of Significant Accounting Policies (Summary Of Allowance For Doubtful Accounts Activity) (Details) (USD $) In Thousands | 12 Months Ended
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Jul. 31, 2011 | Jul. 31, 2010 | Jul. 31, 2009
Summary Of Significant Accounting Policies |  |  |
Beginning Balance | $ 422 | $ 302 | $ 295
Net charged to expense | 3 | 195 | 326
Write-offs net of recoveries/payments | (116) | (75) | (319)
Heartland acquisition | 240 |  |
Ending Balance | $ 549 | $ 422 | $ 302

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- Definition Allowance for doubtful accounts, provision charged to expense. + Details
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Balance Type: | credit
Period Type: | duration

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- Definition Allowance for doubtful accounts receivable acquisition. + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Allowance for doubtful accounts, write offs against payments and recoveries. + Details
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- Details
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- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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