FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 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)	September 30,              2012		Quoted Prices in Active Markets for       Identical Assets       (Level 1)		Significant Other        Observable       Inputs (Level 2)
Money market funds	$	3,270	$	3,270	$	—
Marketable securities:
Government sponsored enterprise bonds	$	2,000	$	—	$	2,000
Corporate bonds		14,317		14,317		—
Municipal bonds		28,775		13,575		15,200
Total marketable securities	$	45,092	$	27,892	$	17,200

			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