SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Schedule of assets measured at fair value on a recurring basis

	Fair Value Measurement at December 31, 2012 Using:
	Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	(Level 1)		(Level 2)		(Level 3)
Corporate debt securities	$	2,010	$	-	$	-
Money market funds (included in cash and cash equivalents)		67,050
Total	$	69,060	$	-	$	-

	Fair Value Measurement at December 31, 2011 Using:
	Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	(Level 1)		(Level 2)		(Level 3)
Corporate debt securities	$	727	$	-	$	-
Money market funds (included in cash and cash equivalents)		42,204
Total	$	42,931	$	-	$	-

Schedule of estimated useful lives assets

Building	30 years
Building improvements	5 to 20 years
Furniture and fixtures	5 years
Computer, office & manufacturing equipment	3 years
Purchased software	3 years