Earnings per share - Computation of basic and diluted net income (loss) per share (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Net (loss) income attributable to common stockholders	$ (509,213)	$ (1,230,964)
Weighted average common stock outstanding - Basic and diluted	67,448,890	67,448,890
Earnings per share attributable to common stockholder
Basic and diluted (in dollars per share)	$ 0.00	$ 0.00