Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2013

Summary of Significant Accounting Policies [Abstract]

Inventories

	March 31, 2013		December 31, 2012
Raw materials	$	6,989	$	6,777
Work in process		424		393
Finished goods		5,643		5,588
	$	13,056	$	12,758

Intangible Assets

		March 31, 2013
	Amortization Period (Years)	Gross		Accumulated Amortization			Net
Customer list	10	$	12,311	$	(1,925	)	$	10,386
Patents and product rights	3-10		10,449		(7,061	)		3,388
Acquired technology	7		9,563		(2,104	)		7,459
Tradename	15		4,719		(510	)		4,209
Non-compete agreements	1-3		822		(515	)		307
		$	37,864	$	(12,115	)	$	25,749
		December 31, 2012
	Amortization Period (Years)	Gross		Accumulated Amortization			Net
Customer list	10	$	12,619	$	(1,673	)	$	10,946
Patents and product rights	3-10		10,449		(6,926	)		3,523
Acquired technology	7		9,802		(1,829	)		7,973
Tradename	15		4,837		(443	)		4,394
Non-compete agreements	1-3		842		(471	)		371
		$	38,550	$	(11,342	)	$	27,207