Commitments and Contingencies

6 Months Ended

Jun. 30, 2018

13. Commitments and Contingencies

Operating leases

The Company also leases equipment and facilities under non-cancelable operating leases expiring at various dates through 2021. The Company also leases its office in Colorado Springs from a related party under a non-cancelable operating lease which expires in 2019. Future minimum lease payments under operating leases are as follows:


	Payments due by Period
	Total		2018		2019		2020		2021		2022 and Thereafter
	(in thousands)
Operating leases	$	361	$	102	$	113	$	74	$	72	$	-

Other Commitments

As of June 30, 2018, the Company has equipment purchase commitments aggregating approximately $2.3 million.