Cost of Contracts, net

12 Months Ended

Dec. 31, 2014

Cost of Contracts, net

Cost of Contracts, net

6. Cost of Contracts, net

        Cost of contracts, net is comprised of the following:

	December 31,
	2014			2013
Cost of contracts	$	28,276		$	25,607
Accumulated amortization		(17,795	)		(14,845	)
Cost of contracts, net	$	10,481		$	10,762

        The expected future amortization of cost of contracts is as follows:

	Cost of Contract
2015	$	2,478
2016		2,329
2017		2,126
2018		1,750
2019		1,108
2020 and Thereafter		690
Total	$	10,481

        Amortization expense related to cost of contracts was $3,205, $2,788 and $3,142 for the years ended December 31, 2014, 2013 and 2012, respectively. The weighted average useful life was 9.5 years, 9.6 years and 9.5 years as of December 31, 2014, 2013 and 2012, respectively.