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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Jul. 31, 2012
Summary of Allowance for Doubtful Accounts Activity | A summary of allowance for doubtful accounts activity is as follows:
|  | 2012 |  |  | 2011 |  |  | 2010 |
Beginning Balance |  |  | $ 549 |  |  |  | $ 422 |  |  |  | $ 302 |
Net charged to expense |  |  | 32 |  |  |  | 3 |  |  |  | 195 |
Write-offs net of recoveries/payments |  |  | (54) |  |  |  | (116) |  |  |  | (75) |
Heartland acquisition |  |  | – |  |  |  | 240 |  |  |  | – |
Ending Balance |  |  | $ 527 |  |  |  | $ 549 |  |  |  | $ 422 |
Schedule of Difference Between Basic and Diluted EPS as Result of Outstanding Stock Options and Restricted Stock | The difference between basic EPS and diluted EPS is the result of outstanding stock options and unvested restricted stock.
|  | 2012 |  |  | 2011 |  |  | 2010 |
Weighted average shares outstanding for basic earnings per share |  |  | 53,845,697 |  |  |  | 55,271,340 |  |  |  | 53,019,008 |
Stock options and unvested restricted stock |  |  | 54,151 |  |  |  | 102,301 |  |  |  | 100,356 |
Weighted average shares outstanding assuming dilution |  |  | 53,899,848 |  |  |  | 55,373,641 |  |  |  | 53,119,364 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 260 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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