Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of income before income tax, domestic and foreign

For financial reporting purposes, loss before provision for income taxes includes the following (in thousands):

Years ended December 31:	2014			2013			2012
United States	$	(7,993	)	$	(4,096	)	$	(11,018	)
Foreign	141			(1,218		)	2,830
Loss before provision for income taxes	$	(7,852	)	$	(5,314	)	$	(8,188	)

Provision for income taxes

The provision (benefit) for income taxes consists of the following (in thousands):

Years ended December 31:	2014			2013			2012
Current:
State	$	(89	)	$	(56	)	$	300
Foreign	2,470			1,621			1,664
Total current	2,381			1,565			1,964
Deferred:
Federal	—			—			(3,019		)
State	—			—			(614		)
Foreign	1,922			(57		)	656
Total deferred	1,922			(57		)	(2,977		)
Provision (benefit) for income taxes	$	4,303		$	1,508		$	(1,013	)

Schedule of effective income tax rate reconciliation

The income tax provision differs from the amount computed by applying the federal statutory income tax rate as follows:

Years ended December 31:	2014		2013		2012
Income tax provision, at statutory federal rate	34	%	34	%	34	%
State and local income taxes, net of federal income taxes effect	6		5		6
Credits	—		—		5
Permanent differences	(10	)	(13	)	(7	)
Goodwill impairment	—		—		(4	)
Fiberxon settlement	—		—		—
Foreign taxes at rates different than domestic rates	(4	)	(7	)	(1	)
Change in valuation allowance	(76	)	(49	)	(20	)
Change in reserve for uncertain tax positions	—		(3	)	—
Other adjustments	(5	)	5		—
Effective tax rate	(55	)%	(28	)%	13	%

Components of deferred income taxes

The components of deferred income taxes consist of the following (in thousands):

December 31:	2014			2013
Allowance for doubtful accounts	$	389		$	415
Inventory reserve	2,814			1,954
Accrued liabilities	2,846			2,694
Other	5,446			5,791
	11,495			10,854
Valuation allowance	(10,960		)	(9,635		)
Net current deferred income tax assets	535			1,219
Net operating losses	91,085			88,086
Depreciation and amortization	370			439
Capital loss carry forwards	38,755			38,951
	130,210			127,476
Valuation allowance	(128,105		)	(123,782		)
Net long-term deferred income tax asset	2,105			3,694
Total deferred income taxes	$	2,640		$	4,913

Summary of valuation allowance

The change in the valuation allowance is as follows (in millions):

December 31:	2014			2013			2012
Balance at beginning of period	$	(133.4	)	$	(138.2	)	$	(158.8	)
(Increase) decrease in valuation allowance	(5.6		)	4.8			20.6
Balance at end of period	$	(139.0	)	$	(133.4	)	$	(138.2	)

Schedule of unrecognized tax benefits roll forward

A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows (in thousands):

December 31:	2014			2013			2012
Balance at beginning of period	$	(134	)	$	—		$	—
Reductions related to prior year positions	34			(134		)	—
Balance at end of period	$	(100	)	$	(134	)	$	—