Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

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, 2012	$	1,662	116	(72	)	26		$	1,732
December 31, 2013	$	1,732	580	(167	)	37		$	2,182
December 31, 2014	$	2,182	95	(393	)	(126	)	$	1,758

Schedule of Inventory, Current

Inventories, net of reserves, consisted of the following (in thousands):

December 31:	2014		2013
Raw materials	$	3,663	$	5,723
Work-in process	641		1,121
Finished goods	17,379		16,137
Total inventories	$	21,683	$	22,981

Property, Plant and Equipment

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

December 31:	2014			2013
Machinery and equipment	$	7,603		$	7,448
Computer hardware and software	6,650			6,653
Leasehold improvements	2,651			2,354
Furniture and fixtures	1,462			1,411
Construction in progress	181			413
Total property and equipment, at cost	18,547			18,279
Less — accumulated depreciation and amortization	(13,657		)	(12,724		)
Total property and equipment	$	4,890		$	5,555

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

Schedule of Cash and Cash Equivalents

Cash equivalents are included in the consolidated balance sheets as follows (in thousands):

	Cost		Fair Value
December 31, 2014	$	10,606	$	10,606
December 31, 2013	$	14,001	$	14,001