FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2012

Cash Equivalents And Marketable Securities At Fair Value

The fair value hierarchy of the Company’s cash equivalents and marketable securities at fair value is as follows:

			Fair Value Measurements at Reporting Date Using
(in thousands)	June 30, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Money market funds	$	2,825	$	2,825	$	—
Marketable securities:
Government sponsored enterprise bonds	$	2,000	$	—	$	2,000
Corporate bonds		15,339		14,333		1,006
Municipal bonds		30,698		10,669		20,029
Total marketable securities	$	48,037	$	25,002	$	23,035

			Fair Value Measurements at Reporting Date Using
(in thousands)	December 31, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Money market funds	$	3,067	$	3,067	$	—
Marketable securities:
Municipal bonds	$	28,040	$	6,110	$	21,930
Corporate bonds		15,040		15,040		0
Government sponsored enterprise bonds		7,999		2,001		5,998
Total marketable securities	$	51,079	$	23,151	$	27,928