(6)	Fair Value Measurements

Our financial instruments consist of cash, accounts receivable and capital leases. Our estimate of fair value for financial instruments approximates their carrying value as of December 31, 2015 and 2014.

The following table presents reconciliation for the contingent consideration liability measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the year ended December 31, 2014:

 

		Amount
		(in thousands)
Balance at December 31, 2013			$1,416
Payments			(1,500)
Revaluations			84
Balance at December 31, 2014			$—

Revaluations of contingent consideration are presented as a component of general and administrative expense in the accompanying consolidated statements of operations.

The contingent consideration was paid in full during the year ended December 31, 2014. Accordingly, no assets or liabilities measured at fair value on a recurring basis using significant unobservable inputs existed in 2015.