Income Tax (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Pre-tax income in jurisdictions
Pre-tax income	$ 14,710,553	$ 11,687,249
PRC [Member]
Pre-tax income in jurisdictions
Pre-tax income	7,727,981	8,603,740
SAMOA [Member]
Pre-tax income in jurisdictions
Pre-tax income	6,922,098	2,638,417
BVI [Member]
Pre-tax income in jurisdictions
Pre-tax income	(28,518)	255,092
Others [Member]
Pre-tax income in jurisdictions
Pre-tax income	$ 88,992	$ 190,000