Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table summarizes the changes in the allowance for doubtful accounts (in thousands):

Year ended:	Balance at beginning of period		Charged to expense	Deductions		Effect of foreign currency exchange rates		Balance at end of period
December 31, 2011	$	3,342	210	(1,863	)	(27	)	$	1,662
December 31, 2012	$	1,662	116	(72	)	26		$	1,732
December 31, 2013	$	1,732	580	(167	)	37		$	2,182

Schedule of Inventory, Current

Inventories consisted of the following (in thousands):

December 31:	2013		2012
Raw materials	$	5,723	$	4,348
Work-in process	1,121		1,368
Finished goods	16,137		16,728
Total	$	22,981	$	22,444

Property, Plant and Equipment

Property and equipment consisted of the following (in thousands):

December 31:	2013			2012
Property and equipment, at cost:
Machinery and equipment	$	7,448		$	8,196
Computer hardware and software	6,653			7,204
Leasehold improvements	2,354			2,528
Furniture and fixtures	1,411			2,065
Construction in progress	413			393
Total property and equipment, at cost	18,279			20,386
Less — accumulated depreciation and amortization	(12,724		)	(16,651		)
Total	$	5,555		$	3,735

Depreciation is computed using the straight line method over the estimated useful lives of the related assets, as follows:

	Life (years)
Asset category	From	To
Machinery and equipment	2	5
Computer hardware and software	3	7
Leasehold improvements	1	10
Furniture and fixtures	3	15