SIGNIFICANT ACCOUNTING POLICIES (Details 2) (Recurring basis, USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Level 1
Current Assets
Marketable Securities	$ 0	$ 17,014
Total	0	17,014
Level 2
Current Assets
Marketable Securities	0
Total	0
Level 3
Current Assets
Marketable Securities	0
Total	0
Balance as of December 31,
Current Assets
Marketable Securities	0	17,014
Total	$ 0	$ 17,014