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Notes Payable, Related Party - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended			12 Months Ended
	Jan. 31, 2013 Former Shareholders [Member]	Jan. 31, 2013 Former Shareholders [Member]	Jul. 31, 2012 Former Shareholders [Member]	Mar. 31, 2009 Former Shareholders [Member]	Jul. 31, 2012 Chairman [Member] Installment	Jan. 31, 2013 Chairman [Member]	Jun. 09, 2010 Chairman [Member]
Notes Payable [Line Items]
Notes payable to Cortelco's former shareholders	$ 3,030,000	$ 3,030,000	$ 3,486,000	$ 10,500,000			$ 185,511
Fair value of notes	3,030,000	3,030,000
Discount rate		15.22%
Notes payable imputed interest benefit	240,000	283,000
Present value of notes payable						$ 184,000
Annual installments of notes payable					3

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents notes payable as of the balance sheet date.

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- Definition

The amount for notes payable (written promise to pay), due to related parties.

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