Commitments (Tables)

12 Months Ended

Dec. 31, 2014

Commitments [Abstract]

Future Minimum Payments Under Capital Leases

The following is a schedule by years of future minimum payments under capital leases together with the present value of the net minimum lease payments as of December 31, 2014 (in thousands):

	Property			Equipment			Total
2015	$	1,808			30			1,838
2016		1,853			1			1,854
2017		1,899			1			1,900
2018		1,947			--			1,947
2019		1,995			--			1,995
Remainder		21,408			--			21,408
Total minimum obligations		30,910			32			30,942
Less amounts representing interest (ranging from 5.0 % to 18.8 %)		(9,435	)		--			(9,435	)
Net present value of minimum obligations		21,475			32			21,507
Less current portion		(742	)		(30	)		(772	)
Long-term capital lease obligations at December 31, 2014	$	20,733		$	2		$	20,735

Future Minimum Lease Payments for All Noncancelable Operating Leases

Future minimum lease payments for all noncancelable operating leases at December 31, 2014 are as follows (in thousands):

2015	$	622
2016		410
2017		295
2018		289
2019		283
Remainder		1,248
Total minimum lease payments	$	3,147

Accrued Warranties

We provide product warranties for products sold through certain U.S. Government contract vehicles. We accrue a warranty liability at the time that we recognize revenue for the estimated costs that may be incurred in connection with providing warranty coverage. Warranties are valued using historical warranty usage trends; however, if actual product failure rates or service delivery costs differ from estimates, revisions to the estimated warranty liability may be required. Accrued warranties are reported as other current liabilities on the consolidated balance sheets.

	Balance Beginning of Year		Accruals			Warranty Expenses			Balance End of Year
	(amount in thousands)
Year Ended December 31, 2014	$	113	$	140		$	(64	)	$	189
Year Ended December 31, 2013	$	226	$	70		$	(183	)	$	113
Year Ended December 31, 2012	$	953	$	(393	)	$	(334	)	$	226