Correction of Error for Accounting of Warrants as Derivative Securities (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Other income (expenses)
Change in fair value of warrants	$ 13,711	$ 350,323	$ 7,336	$ 233,370
Net income attributable to Zoom Technologies Inc.	(2,729,304)	770,262	(4,191,809)	1,295,194
Basic and diluted income per common share:
Basic	$ (0.09)	$ 0.03	$ (0.14)	$ 0.05
Diluted	$ (0.09)	$ 0.03	$ (0.14)	$ 0.05
Previouly Reported
Other income (expenses)
Change in fair value of warrants		0		0
Net income attributable to Zoom Technologies Inc.		419,939		1,061,824
Basic and diluted income per common share:
Basic		$ 0.02		$ 0.04
Diluted		$ 0.02		$ 0.04
Adjustment
Other income (expenses)
Change in fair value of warrants		350,323		233,370
Net income attributable to Zoom Technologies Inc.		350,323		233,370
Basic and diluted income per common share:
Basic		$ 0.01		$ 0.01
Diluted		$ 0.01		$ 0.01
As Currently Reported
Other income (expenses)
Change in fair value of warrants		350,323		233,370
Net income attributable to Zoom Technologies Inc.		$ 770,262		$ 1,295,194
Basic and diluted income per common share:
Basic		$ 0.03		$ 0.05
Diluted		$ 0.03		$ 0.05