Note Payable - Related party - Additional Information (Detail) (USD $)	1 Months Ended
	May 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Notes Payable Convertible Notes Payable and Convertible Notes Payable Related Parties [Line Items]
Long term notes payable, related party, net of current portion due		$ 5,303,683	$ 7,303,683
Debt instrument, periodic payment, principal	$ 2,000,000
International Electronic Devices, Inc.
Notes Payable Convertible Notes Payable and Convertible Notes Payable Related Parties [Line Items]
Debt maturity date	May 15, 2020
Interest accrues rate	5.00%