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Accounts Receivable (Tables)

6 Months Ended

Jan. 31, 2014

Accounts Receivable Additional Disclosures [Abstract]

Accounts receivable

Accounts receivable consist of the following at:

		January 31, 2014				July 31, 2013
Billed receivables from commercial customers		$	36,018,000			40,005,000
Billed receivables from the U.S. government and its agencies		8,757,000				8,114,000
Unbilled receivables on contracts-in-progress		12,799,000				2,399,000
Total accounts receivable		57,574,000				50,518,000
Less allowance for doubtful accounts		695,000				603,000
Accounts receivable, net		$	56,879,000			49,915,000

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- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ 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 210.5-02.3,4)

-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 3, 4

-Article 5

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