Inventories, net

12 Months Ended

Dec. 31, 2011

Notes to Financial Statements

Inventories, net

2. Inventories, net

Inventories, which are presented net of allowance for obsolete and slow moving inventory, consisted of the following:

	December 31,
	2011		2010
Finished goods	$	3,981	$	3,110
Work in process		4,671		6,075
Raw materials		3,496		2,757
	$	12,148	$	11,942

Changes in the allowance for obsolete and slow moving inventory is as follows:

	Years Ended December 31,
	2011		2010		2009
Balance, beginning of year	$	2,617	$	2,346	$	2,405
Charged to cost of sales		148		271		245
Disposal of inventory		—		—		(304	)
Balance, end of year	$	2,765	$	2,617	$	2,346