Inventory (Tables)

12 Months Ended

Dec. 31, 2012

Inventory Disclosure [Abstract]

Components of Inventory

Inventories are as follows (in thousands):

	December 31,
	2012			2011
Raw materials	$	12,883		$	12,490
Work-in-process	342			160
Finished goods	34,704			27,917
Inventories	47,929			40,567
Less reserve for excess and obsolete inventory	(2,752		)	(2,679		)
Inventories, net	$	45,177		$	37,888

Schedule of changes in the reserve for excess and obsolete inventory

Changes in the reserve for excess and obsolete inventory are as follows (in thousands):

	Year ended December 31,
	2012			2011			2010
Balance, beginning of year	$	2,679		$	2,633		$	3,080
Charged to costs and expenses	220			1,011			771
Deductions	(147		)	(965		)	(1,218		)
Balance, end of the year	$	2,752		$	2,679		$	2,633