16. Commitments

The Company leases certain buildings, hardware and office space under operating leases. In addition, the Company has entered into purchasing arrangements in which minimum quantities of goods or services have been committed to be purchased on an annual basis.

Minimum lease and purchase commitments under noncancelable arrangements are as follows (in thousands):


Years ended December 31,	Operating Leases
2016	$	481
2017		387
2018		371
2019		370
2020		295
2021 and thereafter		883

	$	2,787

Lease expense was $0.9 million, $1.0 million and $0.9 million for the years ended December 31, 2015, 2014 and 2013, respectively.

The Company has entered into agreements which contain certain percentage volume purchase requirements. The Company has excluded these future purchase commitments from the table above since there are no minimum purchase commitments or payments under these agreements