Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Taxes

Schedule of loss before income taxes

	Years ended December 31,
	2014			2013			2012
	(in thousands)
United States	$	(11,987	)	$	(18,998	)	$	(37,682	)
Foreign		1,820			2,894			5,294
Loss before income taxes	$	(10,167	)	$	(16,104	)	$	(32,388	)

Schedule of provision for income taxes

	Years ended December 31,
	2014		2013		2012
	(in thousands)
Current:
United States
Federal	$	—	$	—	$	—
State		59		84		82
Foreign		780		641		738
Total current		839		725		820
Deferred:
Foreign		260		315		826
Total deferred		260		315		826
Income tax provision	$	1,099	$	1,040	$	1,646

Schedule of reconciliations of income taxes at the United States Federal statutory rate to the effective income tax rate

	Years ended December 31,
	2014			2013			2012
	(in thousands)
Income tax benefit at the United States statutory rate	$	(3,558	)	$	(5,636	)	$	(11,336	)
State income taxes		38			55			53
Unrecognized tax benefits		184			(293	)		(832	)
Effect of change in valuation allowance		(6,835	)		5,975			12,662
Foreign income tax rate differentials		259			(1,244	)		(788	)
Unremitted earnings of foreign subsidiaries		(758	)		961			—
Foreign dividend		—			—			383
Stock options		686			450			1,298
Deemed distribution from foreign subsidiaries		607			316			149
Discrete items, net		9,143			—			—
Other, net		1,333			456			57
Income tax provision	$	1,099		$	1,040		$	1,646

Schedule of significant components of current and long-term deferred income taxes

	As of December 31,
	2014						2013
	Current			Long Term			Current			Long Term
	(in thousands)
Federal net operating loss carryforwards	$	—		$	105,119		$	—		$	104,370
State net operating loss carryforwards		—			2,210			—			2,250
Foreign net operating loss carryforwards		—			1,280			—			1,421
Federal tax credit carryforwards		—			16,669			—			17,814
State tax credit carryforwards		—			5,293			—			5,543
Unremitted earnings of foreign subsidiaries		—			(8,800	)		—			(9,661	)
Intangible assets		—			383			—			532
Property, plant and equipment		—			4,548			—			4,796
Accrued compensation		65			—			43			—
Inventories		9,808			—			16,540			—
Stock compensation		—			5,198			—			4,896
Warranty		486			—			591			(56	)
Other		1,620			(2,328	)		2,671			(2,406	)
Deferred taxes, gross		11,979			129,572			19,845			129,499
Valuation allowance		(10,975	)		(128,982	)		(18,059	)		(129,409	)
Deferred taxes, net	$	1,004		$	590		$	1,786		$	90

Schedule of reconciliation of the beginning and ending balance of unrecognized tax benefits

	2014		2013
	(in thousands)
Balance at beginning of year	$	7,645	$	7,719
Increases in unrecognized tax benefits as a result of tax positions taken during a prior period		92		324
Decreases in unrecognized tax benefits related to settlements with tax authorities		—		—
Increases in unrecognized tax benefits as a result of tax positions taken during the current period		223		—
Reductions to unrecognized tax benefits as a result of a lapse of the applicable statute of limitations		—		(398	)
Balance at end of year	$	7,960	$	7,645
Recorded as other long-term liability	$	2,328	$	2,343
Recorded as a decrease in deferred tax assets and offsetting valuation allowance		5,632		5,302
	$	7,960	$	7,645