Share-based compensation expenses (Tables) (Stock Options Related to Employees [Member])

9 Months Ended

Sep. 30, 2012

Stock Options Related to Employees [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-Based Compensation

	Number			Weighted Average Exercise		Contractual Term in
	of Share			Price		Years
Outstanding, January 1, 2012		630,000		$	3.04		9.23
Granted		100,000		$	1.15
Exercised		-			-
Forfeited		(65,000	)	$	2.51
Outstanding, September 30, 2012		665,000		$	2.81		8.60
Exercisable, September 30, 2012		120,000		$	3.48		8.32

Schedule of Fair Value of Options Granted, Weighted-Average Assumptions

	Three months ended September 30,					Nine months ended September 30,
	2012		2011			2012			2011
Expected volatility		-		40.14	%		71.78	%		40.02	%
Risk-free interest rate		-		1.12	%		1.09	%		2.42	%
Expected term from grant date (in years)		-		6.25			6.25			6.16
Dividend rate		-		-			-			-
Forfeiture rate		-		-			4.86	%		4.30	%
Fair value		-	$	0.52			0.74		$	1.47