Balance Sheet Account Detail (Tables)

12 Months Ended

Dec. 31, 2012

Balance Sheet Related Disclosures [Abstract]

Schedule of Allowance for Doubtful Accounts

The following is the 2011 and 2012 summary of activity within the allowance for doubtful accounts:

Ending balance, December 31, 2010	$	(118	)
Bad debt expense	(62		)
Write offs	19
Ending balance, December 31, 2011	$	(161	)
Bad debt expense	(325		)
Write offs	14
Ending balance, December 31, 2012	$	(472	)

Schedule of Property and Equipment

Property and equipment consisted of the following:

	December 31,
	2012			2011
Production equipment, molds, and office furniture	$	7,256		$	6,440
Computer hardware and software	2,265			1,023
Leasehold improvements	2,819			2,459
Construction in progress (software and related implementation, production equipment, and leasehold improvements)	556			1,133
Property and equipment, at cost	12,896			11,055
Accumulated depreciation	(7,912		)	(6,601		)
Property and equipment, net	$	4,984		$	4,454

Schedule of Inventory, Current

Inventories consisted of the following:

	December 31,
	2012		2011
Raw materials	$	3,901	$	3,260
Work-in-process	5,102		4,617
Finished goods	9,084		10,222
Inventories	$	18,087	$	18,099

Schedule of Intangible Assets and Goodwill

The following table presents goodwill, indefinite lived intangible assets, finite lived intangible assets, and related accumulated amortization:

	December 31,
	2012			2011
Goodwill	$	29,022		$	27,073
Intangible assets:
Indefinite lived intangibles
In-process research and development (a)	$	40,100		$	40,100
Trademarks and trade names	2,708			2,708
Total indefinite lived intangibles	$	42,808		$	42,808
Finite lived intangibles
Developed technology	$	—		$	14,050
Accumulated amortization	—			(13,465		)
Developed technology, net	$	—		$	585
Patent	$	100		$	100
Accumulated amortization	(75		)	(54		)
Patent, net	$	25		$	46
License	$	100		$	—
Accumulated amortization	(12		)	—
License, net	$	88		$	—
Customer relationships	$	522		$	—
Accumulated amortization	(87		)	—
Customer relationships, net	$	435		$	—
Intangible assets (excluding goodwill), net	$	43,356		$	43,439

(a)Will be reclassified to finite lived intangibles and amortized through 2025, beginning February 2013, to coincide with the commercial launch of the product (Nellix System) associated with this intangible asset.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated amortization expense for the five succeeding years and thereafter (which includes amortization of intangible assets which commenced in February 2013 with the commercial launch of the Nellix System in Europe) is as follows:

	Amortization Expense
2013	$	268
2014	392
2015	892
2016	1,541
2017	2,011
2018 and thereafter	35,544