Selected Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

The following tables set forth selected unaudited financial information for the eight quarters in the two-year period ended December 31, 2018.  This information has been prepared on the same basis as the audited financial statements and, in the opinion of management, contains all adjustments necessary for a fair presentation.

	First Quarter		Second Quarter		Third Quarter			Fourth Quarter			Total Year
	(in thousands, except per share data)
2018
Revenues	$	136,843	$	159,767	$	125,073		$	99,211		$	520,894
Gross profit	15,822		20,769		5,938			(20,880		)	21,649
Operating (loss) income	7,069		4,591		(7,405		)	(104,795		)	(100,540		)
(Loss) income before income taxes	5,590		3,909		(9,427		)	(106,727		)	(106,655		)
Net (loss) income	4,101		2,249		(6,356		)	(94,416		)	(94,422		)
(Loss) earnings per share:
Basic	$	0.15	$	0.08	$	(0.22	)	$	(3.32	)	$	(3.31	)
Diluted	$	0.14	$	0.08	$	(0.22	)	$	(3.32	)	$	(3.31	)

	First Quarter			Second Quarter			Third Quarter			Fourth Quarter		Total Year
	(in thousands, except per share data)
2017
Revenues	$	138,757		$	137,420		$	140,162		$	162,214	$	578,553
Gross profit	12,985			15,397			10,757			27,751		66,890
Operating (loss) income	(1,482		)	(2,466		)	(5,354		)	10,840		1,538
(Loss) income before income taxes	(2,827		)	(3,917		)	(6,703		)	9,306		(4,141		)
Net (loss) income	(1,808		)	(2,293		)	(5,037		)	9,538		400
(Loss) earnings per share:
Basic	$	(0.07	)	$	(0.08	)	$	(0.18	)	$	0.34	$	0.01
Diluted	$	(0.07	)	$	(0.08	)	$	(0.18	)	$	0.34	$	0.01