Summary of Significant Accounting Policies (Details) (Textual) (USD $)	3 Months Ended	12 Months Ended							1 Months Ended	12 Months Ended
	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012 Maximum [Member]	Jul. 31, 2012 Minimum [Member]	Jul. 31, 2012 Cortelco Products [Member] Maximum [Member]	Jul. 31, 2012 Cortelco Products [Member] Minimum [Member]	Jul. 31, 2012 Subsidiaries [Member]	Apr. 01, 2009 Former Shareholders [Member]	Jul. 31, 2012 Former Shareholders [Member]
Related Party Transaction [Line Items]
Property plant and equipments estimated useful lives of assets				5 years	3 years
Investment interest in equity method				50.00%	20.00%			20.00%
Cost of satisfying warranty claims				2.40%	0.50%
Discount rate of Cortelco									15.22%	15.22%
Product warranty period			1 year			5 years	1 year
Summary of Significant Accounting Policies (Textual) [Abstract]
Cash equivalents maturity period		3 months or less
Impairment charge	$ 916,000	$ 0	$ (916,000)
Investment interest in initially recorded at cost		20.00%
Uncertain income tax		50.00%
Carrying value of the Company's investment in Symbio Investment Corp		990,000
Accumulated foreign currency translation adjustments		$ 107,000