Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2015

Accounting Policies [Abstract]

Activity of Allowance for Doubtful Accounts

The following table shows the activity of the allowance for doubtful accounts:

	September 30, 2015		December 31, 2014
	(in thousands)
Beginning balance	$	140	$	50
Charges to costs and expenses		155		105
Accounts charged off, less recoveries		14		(15	)
Ending balance	$	309	$	140

Inventories

Inventories are composed of the following:

	September 30, 2015		December 31, 2014
	(in thousands)
Raw materials	$	10,210	$	14,503
Work in progress		10,495		6,357
Finished goods		2,407		1,879
	$	23,112	$	22,739

Property and Equipment

Property and equipment consisted of the following:

	September 30, 2015			December 31, 2014
	(in thousands)
Land and land improvements	$	4,133		$	4,133
Buildings		26,097			32,482
Machinery, equipment and tooling		50,310			127,158
Leasehold improvements		7,141			7,640
Furniture and fixtures		901			961
Information systems		1,087			1,140
Construction in progress		1,201			3,734
Total cost		90,870			177,248
Accumulated depreciation and amortization		(31,791	)		(69,572	)
Property and equipment, net	$	59,079		$	107,676

Anti-Dilutive Securities Excluded from Calculation of Diluted Net Loss Per Share

At September 30, 2015 and 2014, the Company had the following anti-dilutive securities outstanding which were excluded from the calculation of diluted net loss per share:

	September 30, 2015		September 30, 2014
Warrants		—		117,522
Stock options		1,130		142,104
Total		1,130		259,626

Components of Comprehensive Loss

The following table summarizes the components of comprehensive loss:

	September 30, 2015			December 31, 2014
	(in thousands)
Reclassification of unrealized gain included in net loss	$	—		$	388
Unrealized loss on investments		(14	)		(415	)
Unrealized loss on currency translation		(13	)		(16	)
Ending Balance	$	(27	)	$	(43	)