Restructuring Costs (Tables)

12 Months Ended

Dec. 31, 2017

Restructuring And Related Activities [Abstract]

Schedule of Restructuring Costs, Recorded in Restructuring Expense in Condensed Consolidated Statements of Operations, Incurred

The table below sets forth the restructuring costs, recorded in restructuring expense in the Condensed Consolidated Statements of Operations, incurred during the twelve months ended December 31, 2017:

Early termination of supply contract	$	1,985
Asset retirement obligation		1,403
Retention cost		3,158
Cost of equipment relocation, shutdown cost and other		3,591
Total	$	10,137

Schedule of Costs Accrued Related to Restructuring

The table below sets forth the costs accrued related to the KFAB restructuring:

	Early Contract Termination			Retention Costs			Equipment Relocation, Shutdown Cost and Other			Total
Beginning balance, January 1, 2017	$	-		$	-		$	-		$	-
Costs accrued		1,985			3,158			3,591			8,734
Restructuring costs paid		(1,985	)		(2,499	)		(2,946	)		(7,430	)
Balance at December 31, 2017	$	-		$	659		$	645		$	1,304

Schedule of Asset Retirement Obligation Related to Restructuring

The table below sets forth the asset retirement obligation related to the KFAB restructuring:

Asset retirement obligation, January 1, 2017	$	486
Accrual of additional asset retirement obligation		1,403
Amount paid		(1,500	)
Asset retirement obligation, December 31, 2017	$	389