Commitments (Tables)

12 Months Ended

Dec. 31, 2019

Commitments, Contingencies and Subsequent Events [Abstract]

Future minimum lease commitments at December 31, 2019 were as follows (in thousands):

	Operating Leases			Finance Leases
2020	$	710		$	2,046
2021		715			2,097
2022		564			2,149
2023		368			2,203
2024		28			2,258
After 2024		--			10,658
Total minimum lease payments		2,385			21,411
Less imputed interest		(230	)		(4,546	)
Net present value of minimum lease payments		2,155			16,865
Less current portion		(602	)		(1,224	)
Long-term lease obligations at December 31, 2019	$	1,553		$	15,641

Components of Lease Expense

The components of lease expense were as follows (in thousands):

	Year Ended December 31, 2019
Operating lease cost	$	597
Short-term lease cost (1)		147
Finance lease cost
Amortization of finance lease assets		1,221
Interest on finance lease liabilities		881
Total finance lease cost		2,102
Total lease costs	$	2,846

(1)	Leases that have terms of 12 months or less.

Supplemental Cash Flow Information Related to Leases

Supplemental cash flow information related to leases was as follows (in thousands):

	Year Ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Cash flows from operating activities - operating leases	$	604
Cash flows from operating activities - finance leases	$	1,995
Operating lease right-of-use assets obtained in exchange for operating lease liabilities	$	488

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, 2019	$	30	$	--	$	--		$	30
Year Ended December 31, 2018	$	30	$	--	$	--		$	30
Year Ended December 31, 2017	$	51	$	--	$	(21	)	$	30