Summary of quarterly financial data (unaudited)

12 Months Ended

Dec. 31, 2017

Summary of quarterly financial data (unaudited)

Summary of quarterly financial data (unaudited)

(17) Summary of quarterly financial data (unaudited)

The following summarizes certain consolidated operating results by quarter for 2017 and 2016. All periods presented have been revised for the change in accounting for pension and OPEB presentation. This change had no impact on Net income or Net income per share.

	2017								2016
	March 31		June 30		September 30		December 31		March 31		June 30		September 30		December 31
	(dollars in thousands, except per share amounts)
As Reported:
Net Sales	104,739		116,314		137,245		192,473		95,576		115,365		111,590		115,432
Gross profit	1,085		9,679		16,561		60,598		(12,975	)	(8,405	)	(6,910	)	(737	)
Research and development	829		943		1,338		(159	)	651		786		526		436
Selling and administrative expenses	11,683		12,195		13,322		12,279		13,794		13,423		12,215		18,352
Other expense (income), net	3,067		1,186		(643	)	(1,976	)	237		(1,198	)	(567	)	(660	)
Net income (loss)	(26,344	)	(17,383	)	(3,919	)	55,629		(36,375	)	(128,399	)	(22,967	)	(48,102	)
Net income (loss) per share	(0.09	)	(0.06	)	(0.01	)	0.18		(0.12	)	(0.42	)	(0.08	)	(0.16	)
Effect of Change:
Net Sales	—		—		—		—		—		—		—		—
Gross profit	201		201		201		(809	)	337		337		337		(2,223	)
Research and development	(8	)	(10	)	(9	)	532		(26	)	(26	)	(26	)	213
Selling and administrative expenses	(28	)	(26	)	(28	)	3,109		(97	)	(97	)	(100	)	1,025
Other expense (income), net	237		237		238		(4,450	)	460		460		463		(3,461	)
Net income (loss)	—		—		—		—		—		—		—		—
Net income (loss) per share	—		—		—		—		—		—		—		—
Revised:
Net Sales	104,739		116,314		137,245		192,473		95,576		115,365		111,590		115,432
Gross profit	1,286		9,880		16,762		59,789		(12,638	)	(8,068	)	(6,573	)	(2,960	)
Research and development	821		933		1,329		373		625		760		500		649
Selling and administrative expenses	11,655		12,169		13,294		15,388		13,697		13,326		12,115		19,377
Other expense (income), net	3,304		1,423		(405	)	(6,426	)	697		(738	)	(104	)	(4,121	)
Net income (loss)	(26,344	)	(17,383	)	(3,919	)	55,629		(36,375	)	(128,399	)	(22,967	)	(48,102	)
Net income (loss) per share	(0.09	)	(0.06	)	(0.01	)	0.18		(0.12	)	(0.42	)	(0.08	)	(0.16	)