Commitments (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies [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, 2016 (in thousands):

	Property			Equipment			Total
2017	$	1,899		$	1		$	1,900
2018		1,947			--			1,947
2019		1,995			--			1,995
2020		2,045			--			2,045
2021		2,096			--			2,096
Remainder		17,268			--			17,268
Total minimum obligations		27,250			1			27,251
Less amounts representing interest (ranging from 5.0% to 18.8%)		(7,343	)		--			(7,343	)
Net present value of minimum obligations		19,907			1			19,908
Less current portion		(917	)		(1	)		(918	)
Long-term capital lease obligations at December 31, 2016	$	18,990		$	--		$	18,990

Future Minimum Lease Payments for All Noncancelable Operating Leases

Future minimum lease payments for all noncancelable operating leases at December 31, 2016 are as follows (in thousands):

2017	$	560
2018		491
2019		491
2020		505
2021		502
Remainder		719
Total minimum lease payments	$	3,268

Accrued Warranties

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, 2016	$	133	$	279	$	(361	)	$	51
Year Ended December 31, 2015	$	189	$	125	$	(181	)	$	133
Year Ended December 31, 2014	$	113	$	140	$	(64	)	$	189