Notes Payable, Related Party - Additional Information (Detail) (USD $)	6 Months Ended			3 Months Ended	6 Months Ended	58 Months Ended		58 Months Ended	1 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jul. 31, 2013	Jan. 31, 2014 Former Shareholders [Member]	Jan. 31, 2014 Former Shareholders [Member]	Jan. 31, 2014 Former Shareholders [Member]	Apr. 01, 2009 Former Shareholders [Member]	Jan. 31, 2014 Former Shareholders [Member] Scenario, Forecast [Member]	Jun. 09, 2010 Chairman [Member]
Short-term Debt [Line Items]
Notes payable to Cortelco former shareholders	$ 3,245,000		$ 3,004,000				$ 11,000,000
Fair value of notes				3,245,000	3,245,000	3,245,000
Discount Rate					15.22%
Annual Installments of Notes payable									3
Notes Payable Imputed Interest Benefit				272,000	344,000
Expected repayment of notes payable								400,000
Repayments of notes payable	122,000	191,000				2,731,000
Current maturities of notes payable - related parties	$ 685,000		$ 330,000						$ 186,000