Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Estimated annual lease, royalty, and employment agreement expenses

The estimated annual payments are as follows (in thousands):

Year ended December 31,
2016	$	2,818
2017	2,340
2018	1,766
2019	1,763
2020	352
	$	9,039