Commitments and Contingencies

12 Months Ended

Dec. 31, 2011

Commitments and Contingencies.

Commitments and Contingencies

Note 14.  Commitments and Contingencies

Lease Commitments

        The Company leases manufacturing and office facilities and certain equipment under operating leases that expire through 2016. Rental expense was $4.6 million, $5.2 million, and $5.7 million under operating leases for the years ended December 31, 2011, 2010, and 2009 respectively. Future minimum lease commitments on non-cancelable operating leases are as follows:

Year ended December 31,	Operating Leases
	(in thousands)
2012	$	3,434
2013		2,320
2014		1,511
2015		1,247
2016		853
Thereafter		780
	$	10,145

Purchase Commitments

        The Company has non-cancelable contracts and purchase orders for inventory of $24.2 million at December 31, 2011.

Litigation

        The Company is not presently a party to any litigation that it believes might have a material adverse effect on its business operations. The Company is, from time to time, a party to litigation that arises in the normal course of its business operations.

Indemnifications

        The Company's system sales agreements typically include provisions under which the Company agrees to take certain actions, provide certain remedies and defend its customers against third-party claims of intellectual property infringement under specified conditions and to indemnify customers against any damage and costs awarded in connection with such claims. The Company has not incurred any material costs as a result of such indemnifications and has not accrued any liabilities related to such obligations in the accompanying consolidated financial statements.