BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 7)	12 Months Ended
	Dec. 31, 2012
Cash and Cash Equivalents and Short-Term Investments
Maximum original maturity period for classification as cash and cash equivalents	90 days
Minimum
Cash and Cash Equivalents and Short-Term Investments
Deposits in banks with original maturity period for classification as short-term investments	91 days
Maximum
Cash and Cash Equivalents and Short-Term Investments
Deposits in banks with original maturity period for classification as short-term investments	365 days