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Acquisitions (Details) (USD $) | 3 Months Ended |  |
--- | --- | --- | ---
Oct. 31, 2012 | Jul. 31, 2013 | Dec. 20, 2012
Business Acquisition [Line Items] |  |  |  |
Cash and cash equivalents |  |  | $ 357,000 |
Accounts receivable |  |  | 1,133,000 |
Other current assets |  |  | 23,000 |
Property, plant and equipment |  |  | 480,000 |
Goodwill | 0 | 4,055,000 | 4,055,000 |
Intangible Assets | 0 | 9,592,000 | 9,592,000 |
Other assets |  |  | 101,000 |
Accounts payable |  |  | (302,000) |
Other current liabilities |  |  | (1,492,000) |
Deferred tax liabilities |  |  | (3,357,000) | [1]
Other long-term liabilities |  |  | (155,000) |
Total identifiable net assets |  |  | 10,435,000 |
Business Acquisition, Cost of Acquired Entity, Transaction Costs |  |  | 100,000 |
Equity Method Investment, Ownership Percentage |  |  | 39.00% |
Common Stock, Shares, Issued | 185,856,123 | 192,054,464 |  |
Noncontrolling Interest, Ownership Percentage by Controlling Owners |  |  | 61.00% |
Equity Method Investment, Other than Temporary Impairment | $ 3,600,000 |  |  |
Versa Acquisition [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Common Stock, Shares, Issued |  |  | 3,500,000 |
[1] | Classified in Long-term debt and other liabilities on the consolidated balance sheets.

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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