Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Measurements [Abstract]

Financial Assets And Liability Measured At Fair Value On A Recurring Basis

	Fair Value Measurements as of December 31, 2015 Using
		Quoted Prices in		Significant
		Active Markets		Other		Significant
		for		Observable		Unobservable		Balance
		Identical Assets		Inputs		Inputs		as of
Description		(Level 1)		(Level 2)		(Level 3)		December 31, 2015
Money market funds	$	19,678	$	—	$	—	$	19,678
Total	$	19,678	$	—	$	—	$	19,678

	Fair Value Measurements as of December 31, 2014 Using
		Quoted Prices in		Significant
		Active Markets		Other		Significant
		for		Observable		Unobservable		Balance
		Identical Assets		Inputs		Inputs		as of
Description		(Level 1)		(Level 2)		(Level 3)		December 31, 2014
Certificate of deposit	$	—	$	75	$	—	$	75
Money market funds		19,678		—		—		19,678
Total	$	19,678	$	75	$	—	$	19,753