EMPLOYEE STOCK PLANS - Summary of options issued (Details 1)	12 Months Ended						12 Months Ended
	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2012 Stock Options	Dec. 31, 2011 Stock Options	May 31, 2012 Stock Options	Dec. 16, 2008 Stock Options	Dec. 31, 2012 Stock Options Director	Dec. 31, 2011 Stock Options Director	Dec. 31, 2012 Non-Statutory Stock Options Key Managers	Dec. 31, 2011 Non-Statutory Stock Options Key Managers	Dec. 31, 2012 Incentive Stock Options Key Managers	Dec. 31, 2011 Incentive Stock Options Key Managers	Dec. 31, 2012 Incentive Stock Options Key Employees	Dec. 31, 2011 Incentive Stock Options Key Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares approved			50,350,000		536,924	10,000,000
Additional number of shares approved			40,350,000
Number of options issued	(335,000)	(577,851)	(27,700,000)	(4,368,431)			(5,200,000)	(1,720,000)		(491,867)	(22,500,000)	(2,126,564)		(30,000)
Number of options cancelled			17,540,000	4,278,431			40,000	1,640,000			17,500,000	2,618,431		20,000
Remaining number of shares			40,100,000