Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Measurement [Abstract]

Schedule of assets and liabilities measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis consist of the following as of June 30, 2016 (in thousands):

			Fair Value Measurements at Reporting Date Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for Identical		Observable		Unobservable
	June 30,		Assets/Liabilities		Inputs		Inputs
	2016		(Level 1)		(Level 2)		(Level 3)
Assets:
Money market funds	$	100	$	100	$	—	$	—
Liabilities:
Deferred payments	$	12,590	$	—	$	—	$	12,590

Assets and liabilities measured at fair value on a recurring basis consist of the following as of December 31, 2015 (in thousands):

			Fair Value Measurements at Reporting Date Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for Identical		Observable		Unobservable
	December 31,		Assets/Liabilities		Inputs		Inputs
	2015		(Level 1)		(Level 2)		(Level 3)
Assets:
Money market funds	$	100	$	100	$	—	$	—
Liabilities:
Deferred payments	$	3,278	$	—	$	—	$	3,278

Schedule of changes in fair value of level 3 liability

	Deferred
	Payments
Balance at December 31, 2015	$	3,278
Amounts earned		(468)
Contingent consideration in connection with NYCDA acquisition		8,500
Adjustments to fair value		1,280
Balance at June 30, 2016	$	12,590