Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2012

Fair Value Measurements [Abstract]

Assets and liabilities measured at fair value on a recurring basis, by input level

	Level 1		Level 2		Level 3		Total
Municipal Bonds	$	13,820	$	—	$	—	$	13,820
Certificates of Deposit		5,640		—		—		5,640
Total assets at fair value	$	19,460	$	—	$	—	$	19,460

	Level 1		Level 2		Level 3		Total
Municipal Bonds	$	22,892		—		—	$	22,892
Certificates of Deposit		5,003		—		—		5,003
Total assets at fair value	$	27,895	$	—	$	—	$	27,895