Inventories

Inventories are stated at the lower of cost or market and consist of materials, labor and overhead. Cost is determined by the first in, first out method. Inventories, net of reserves, consisted of the following (in thousands):



	September 30, 2011		December 31, 2010
Raw materials	$	7,500	$	9,556
Work-in process	4,761		4,498
Finished goods	24,393		27,018
Total	$	36,654	$	41,072

The following table summarizes the change in inventory reserve during the nine months ended September 30, 2011 (in thousands):



	Nine months ended
	September 30, 2011

Balance at beginning of period		$	18,994
Charged to expense, net of recoveries		2,427
Write-offs		(2,896		)
Foreign currency translation adjustment		336
Balance at end of period		$	18,861