Commitments and Contingencies

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Operating Leases

We lease two facilities in Denver, CO and Oxnard, CA that are under operating leases through December 2018 and March 2020, respectively. Both of these leases require us to pay increases in real estate taxes, operating costs and repairs over certain base year amounts. Rent expense for the three months ended March 31, 2018 and 2017 was $77,000 and $74,000, respectively.

Future minimum rental commitments under all non-cancelable operating leases as of March 31, 2018, are as follows (in thousands):



Year Ending December 31,
Remaining 2018	$	231
2019	88
2020	23
	$	342