13. Capital Leases

We lease certain equipment under capital leases. Property and equipment included the following amounts for capital leases at December 31:

	2014			2013
Computer equipment	$	16,764		$	20,409
Computer software		3,036			3,304
Furniture and fixtures		41			90
Leasehold improvements		42			42
Total property and equipment under capital lease at cost		19,883			23,845
Less: accumulated depreciation and amortization		(8,702	)		(9,886	)
Net property and equipment under capital lease	$	11,181		$	13,959

Capital leases are collateralized by the leased assets. Our capital leases generally contain provisions whereby we can purchase the equipment at the end of the lease for a one dollar buyout. Amortization of leased assets is included in depreciation and amortization expense.

Future minimum payments under capital lease obligations consisted of the following at December 31, 2014:

2015	$	4,607
2016		3,082
2017		1,969
2018		552
2019		14
Total minimum lease payments		10,224
Less: amounts representing interest		(649	)
Present value of net minimum lease payments (including current portion of $4,243)	$	9,575