Statement of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended		103 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013
Net loss	$ (11,206)	$ (10,770)	$ (22,605)	$ (23,131)	$ (4,228,830)
Other comprehensive income(loss), net of tax:
Foreign currency translation gain(loss)	(5,108)	3,768	(6,793)	3,151	(44,824)
Comprehensive loss	(16,314)	(7,002)	(29,398)	(19,980)	(4,273,654)
Comprehensive loss attributable to the noncontrolling interest	3,583	79	5,814	1,925	363,917
Comprehensive loss attributable to Chang-On International, Inc.	$ (12,731)	$ (6,923)	$ (23,584)	$ (18,055)	$ (3,909,737)