Commitments

The Company’s commitments and contingencies consisted of operating leases for warehouse and office space and equipment. Future minimum lease payments under non-cancelable operating leases are as follows ($ in thousands):



	Commitments

2018	$	491
2019	436
2020	441
2021	403
2022	327
2023	332
Thereafter	83
	$	2,513

Rent expense was $0.5 million, $0.9 million and $0.4 million for the years ended December 31, 2017, 2016 and 2015, respectively.

The Company has certain licensing and development agreement in place under which the Company will pay certain licensing fees and milestones over the lives of certain projects. These commitments totaled approximately $2.4 million as of December 31, 2017, and will be paid over the next several years in accordance with agreed upon milestones.