Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment

Depreciation and amortization of property, plant and equipment is provided for under the straight-line method over the assets’ estimated useful lives as follows:

	Useful Lives
Buildings and improvements	10 - 40 years
Machinery and equipment	5 - 15 years
Computer hardware and software	3 - 5 years
Furniture and fixtures	5 years

Property, plant and equipment, at cost, as of December 31, 2017 and 2016, consisted of:

	2017			2016
	(in thousands)
Land	$	257		$	257
Building and improvements	8,613			8,515
Machinery and equipment	9,142			7,515
Computer hardware and software	3,244			724
Furniture and fixtures	449			344
Construction in progress	55,017			15,496
	76,722			32,851
Less accumulated depreciation and amortization	(8,367		)	(6,636		)
Property, plant and equipment, net	$	68,355		$	26,215

Schedule of Earnings Per Share, Basic and Diluted

For the years ended December 31, 2017, 2016 and 2015

(in thousands except shares and per share data)

	2017			2016			2015
Basic earnings (loss) per share computation:
Net income (loss) attributable to common stockholders —basic	$	(15,191	)	$	(11,985	)	$	6,668
Weighted average common shares —basic	53,323,954			53,078,158			52,872,814
Basic earnings (loss) per share	$	(0.28	)	$	(0.23	)	$	0.13
Dilutive earnings (loss) per share computation:
Net income (loss) attributable to common stockholders —basic	$	(15,191	)	$	(11,985	)	$	6,668
Interest expense related to convertible 3.75% senior notes	—			—			5,391
Amortization of discount related to convertible 3.75% senior notes	—			$	—		$	6,680
Change in the fair value of derivative	—			$	—		$	(23,144	)
Net loss attributable to common stockholders —diluted	$	(15,191	)	$	(11,985	)	$	(4,405	)
Share Computation:
Weighted average common shares —basic	53,323,954			53,078,158			52,872,814
Effect of convertible 3.75% senior notes	—			—			12,732,168
Effect of dilutive stock options and warrants	—			—			1,507,013
Weighted average common shares outstanding —diluted	53,323,954			53,078,158			67,111,995
Diluted net loss per share	$	(0.28	)	$	(0.23	)	$	(0.07	)