| **Investments in Affiliates (Tables)**                | 12 Months Ended                                                                                                                                                                                                                                                                      |
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| **Long-term Investments [Abstract]**                  |                                                                                                                                                                                                                                                                                 |
| Disclosure Of Equity Method Investments In Affiliates | The Company held the following investments in equity method affiliates as of July 31, 2014: Equity Method AffiliatesOwnershipInterestSlifer, Smith, and Frampton/Vail Associates Real Estate, LLC (“SSF/VARE”)50%KRED50%Clinton Ditch and Reservoir Company43% |

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| - Definition
Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571
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| - Details**Name:**us-gaap_LongTermInvestmentsAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |