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Commitments

12 Months Ended

Dec. 31, 2014

(19)	Commitments

The Company has operating leases expiring on various dates through the year 2020. The leases are primarily for the rental of office space, office and laboratory equipment and vehicles. At December 31, 2014, future minimum commitments under non-cancelable operating lease arrangements were as follows:

Year ended December 31:
2015	$	1,194
2016		600
2017		588
2018		528
2019		193
2020 and thereafter		90
Total commitments	$	3,193

Total operating lease expense was $1,113, $1,090 and $815 for the years ended December 31, 2014, 2013 and 2012, respectively.

The Company is party to several unconditional purchase obligations resulting from contracts that contain legally binding provisions with respect to quantities, pricing and timing of purchases. The Company’s purchase obligations mainly include commitments to purchase utilities. At December 31, 2014, future commitments under these obligations were $7,588 in 2015 and none thereafter.

- Definition

The entire disclosure for significant arrangements with third parties, which includes operating lease arrangements and arrangements in which the entity has agreed to expend funds to procure goods or services, or has agreed to commit resources to supply goods or services, and operating lease arrangements. Descriptions may include identification of the specific goods and services, period of time covered, minimum quantities and amounts, and cancellation rights.

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