Commitments (Tables)

12 Months Ended

Dec. 31, 2013

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, 2013 (in thousands):

	Property			Equipment			Total
2014	$	1,500		$	33		$	1,533
2015		1,538			30			1,568
2016		1,576			1			1,577
2017		1,616			1			1,617
2018		1,656			----			1,656
Remainder		14,484			----			14,484
Total minimum obligations		22,370			65			22,435
Less amounts representing interest (ranging from 5.8% to 18.8%)		(6,876	)		(1	)		(6,877	)
Net present value of minimum obligations		15,494			64			15,558
Less current portion		(625	)		(32	)		(657	)
Long-term capital lease obligations at December 31, 2013	$	14,869		$	32		$	14,901

Future Minimum Lease Payments for All Noncancelable Operating Leases

Future minimum lease payments for all noncancelable operating leases at December 31, 2013 are as follows (in thousands):

2014	$	645
2015		551
2016		410
2017		295
2018		289
Remainder		1,531
Total minimum lease payments	$	3,721

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, 2013	$	226	$	70		$	(183	)	$	113
Year Ended December 31, 2012	$	953	$	(393	)	$	(334	)	$	226
Year Ended December 31, 2011	$	1,079	$	257		$	(383	)	$	953